SECTION 23 0110 MECHANICAL GENERAL PROVISIONS PART … · 2016-04-01 · SECTION 23 0110 MECHANICAL GENERAL PROVISIONS PART 1 - GENERAL ... Boston, MA 02210 617/482-8755 . ... 912/241-2284

101-14 Blessed Sacrament School- Phase I

215-14 23 0110 - 1 MECHANICAL GENERAL PROVISIONS

SECTION 23 0110

MECHANICAL GENERAL PROVISIONS

PART 1 - GENERAL

1.01 RELATED DOCUMENTS:

A. Drawings and general provisions of the Contract, including General and Special Conditions

and Division 1 Specification Sections, apply to this Section.

B. It is recognized that separate sub-contracts may be instituted by THIS CONTRACT'S

GENERAL CONTRACTOR with others. It is the responsibility of THIS CONTRACT'S

GENERAL CONTRACTOR to completely inform, coordinate and advise those sub-

contractors as to all of the requirements, conditions and information associated with

providing and installing their portion of the total job.

1.02 IMPOSED REGULATIONS:

A. Applicable provisions of the State and Local Codes and of the following codes and standards

in addition to those listed elsewhere in the specifications are hereby imposed on a general

basis for mechanical work. In each case, the prevailing edition shall be the current adopted

edition of the state where the project is located.

1. International Mechanical Code.

2. International Gas Code.

3. International Energy Conservation Code.

4. International Fire Code.

1.03 SCOPE OF WORK:

A. Provide all labor, materials, equipment and supervision to construct complete and operable

mechanical systems as indicated on the drawings and specified herein. All materials and

equipment used shall be new, undamaged and free from any defects.

1.04 EXISTING SERVICES AND FACILITIES:

A. Damage to Existing Services: Existing services and facilities damaged by the Contractor

through negligence or through use of faulty materials or workmanship shall be promptly

repaired, replaced, or otherwise restored to previous conditions by the Contractor without

additional cost to the Owner.

B. Interruption of Services: Interruptions of services necessary for connection to or modification

of existing systems or facilities shall occur only at prearranged times approved by the Owner.

Interruptions shall only occur after the provision of all temporary work and the availability of

adequate labor and materials will assure that the duration of the interruption will not exceed

the time agreed upon.

C. Removed Materials: Existing materials made unnecessary by the new installation shall be

removed, shall remain the property of the Owner and shall be stored at a location and in a

manner as directed, or, if classified by the Owner's authorized representative as unsuitable for



further use, shall become the property of the Contractor and shall be removed from the site.

1.05 PRODUCT WARRANTIES:

A. Provide manufacturer's standard printed commitment in reference to a specific product and

normal application, stating that certain acts of restitution will be performed for the Purchaser

or Owner by the manufacturer, when and if the product fails within certain operational

conditions and time limits. Where the warranty requirements of a specific specification

section exceed the manufacturer's standard warranty, the more stringent requirements will

apply and modified manufacturer's warranty shall be provided. In no case shall the

manufacturer's warranty be less than one (1) year.

1.06 PRODUCT SUBSTITUTIONS:

A. General: Materials specified by manufacturer's name shall be used unless prior approval of

an alternate is given by addenda. Requests for substitutions must be received in the office of

the Architect at least 10 days prior to opening of bids.

PART 2 - PRODUCTS

2.01 GENERAL MECHANICAL PRODUCT REQUIREMENTS:

A. Standard Products: Provide not less (quality) than manufacturer's standard products, as

specified by their published product data. In addition to the indication that a particular

product/model number is acceptable, comply with the specified requirements. Do not assume

that the available off-the-shelf condition of a product complies with the requirements; as an

example, a specific finish or color may be required.

B. Uniformity: Where multiple units of a general product are required for the mechanical work,

provide identical products by the same manufacturer, without variations except for sizes and

similar variations as indicated.

C. Product Compatibility, Options: Where more than one product selection is specified, either

generically or proprietarily, selection is Purchaser's or Installer's option. Provide mechanical

adaptations as needed for interfacing of selected products in the work.

D. Equipment Nameplates: Provide a permanent operational data nameplate on each item of

power operated mechanical equipment, indicating the manufacturer, product name, model

number, serial number, speed, capacity, power characteristics, labels of tested compliance,

and similar essential operating data.

E. Locate nameplates in easy-to-read locations. When product is visually exposed in an

occupied area of the building, locate nameplate in a concealed position (where possible)

which is accessible for reading by service personnel.

PART 3 - EXECUTION

3.01 PRODUCT INSTALLATION, GENERAL:



A. Except where more stringent requirements are indicated, comply with the product

manufacturer's installation instructions and recommendations, including handling, anchorage,

assembly, connections, cleaning and testing, charging, lubrication, startup, test operation and

shut-down of operating equipment. Consult with manufacturer's technical experts, for

specific instructions on unique product conditions and unforeseen problems.

B. Protection and Identification: Deliver products to project properly identified with names,

models numbers, types, grades, compliance labels and similar information needed for distinct

identifications; adequately packaged or protected to prevent deterioration during shipment,

storage and handling. Store in a dry, well ventilated, indoor space, except where prepared

and protected by the manufacturer specifically for exterior storage.

C. Permits and Tests: Provide labor, material and equipment to perform all tests required by the

governing agencies and submit a record of all tests to the Owner or his representative. Notify

the Architect five days in advance of any testing.

END OF SECTION 23 0110


215-14 23 0120 - 1 MECHANICAL STANDARDS

SECTION 23 0120

MECHANICAL STANDARDS

PART 1 - GENERAL




1.02 QUALITY ASSURANCE:

A. Industry Standards: It is a general requirement that mechanical work comply with applicable

requirements and recommendations of standards published by listed agencies and trade

associations, except to the extent more detailed and stringent requirements are indicated or

required by governing regulations.

B. Listing of Associations, Standards, and Abbreviations:

1. AGA American Gas Association

1515 Wilson Blvd.

Arlington, VA 22209

2. AMCA Air Movement & Control Association

30 W. University Dr., Arlington Heights, IL 60004

302/394-0150

3. ARI Air-Conditioning and Refrigeration Institute

4301 North Fairfax Drive, Suite 425, Arlington, VA

22203

703/524-8800

4. ASHRAE American Society of Heating, Refrigerating &

Air Conditioning Engineers, Inc.

1791 Tullie Circle, NE, Atlanta, GA. 30329

404/636-8400

5. AWS American Welding Society, Inc.

2501 NW 7th St., Miami, FL 33125

305/642-7090

6. CISPI Cast Iron Soil Pipe Institute

2020 K. St., NW, Washington, DC

202/233-4536

7. NEBB National Environmental Balancing Bureau

1611 North Kent St.,

Arlington, VA 22209

8. NEC National Electrical Code by NFPA

9. NEMA National Electrical Manufacturers Association

1300 N 17th Street, Suite 1847

Rosslyn, VA 22209

703/841-3200

10. NFPA National Fire Protection Association

407 Atlantic Ave.,

Boston, MA 02210

617/482-8755


215-14 23 0120 - 2 MECHANICAL STANDARDS

11. SMACNA Sheet Metal & Air Conditioning Contractors National

Association, Inc.

8224 Old Courthouse Rd., Tysons Corner

Vienna, VA 22180

703/790-9890

12. TIMA Thermal Insulation Manufacturers Association

7 Kirby Plaza

Mt. Kisco, NY 10549

912/241-2284

13. UL Underwriters' Laboratories, Inc.

207 East Ohio St.,

Chicago, IL 60611

312/642-6969

PARTS 2 AND 3 - PRODUCTS AND EXECUTION Not applicable.


Dalton High School Renovations

215-14 23 0210 - 1 MECHANICAL COORDINATION

SECTION 23 0210

MECHANICAL COORDINATION

PART 1 - GENERAL





A. Coordinate the actual location of all mechanical work visible in finished spaces with the

Architect/Engineer. This includes air distribution devices, exposed ductwork, thermostats,

humidistats, switches, sensors, etc.

PART 2 - PRODUCTS

2.01 MECHANICAL PRODUCT COORDINATION:

A. Power Characteristics: Refer to the electrical sections of the specifications and the electrical

drawings for the power characteristics available for the operation of each power driven item

of equipment. The electrical design was based on the typical power requirements of the

equipment manufacturers scheduled or specified. Any modifications to the electrical system

which are required due to the use of an approved equivalent manufacturer shall be made at no

additional cost to the owner. All changes must be clearly documented and submitted for

review by the Architect/Engineer prior to purchasing equipment. Coordinate purchases to

ensure uniform interface with electrical work. The mechanical contractor shall furnish a

detailed list of equipment electrical characteristics to the electrical contractor for the purpose

of preparing the coordination affidavit required by Division 26.

B. Coordination of Options and Substitutions: Where the contract documents permit the

selection from several product options, and where it becomes necessary to authorize a

substitution, do not proceed with purchasing until coordination of interface of equipment has

been checked and satisfactorily established.

C. Firestopping: Refer to architectural drawings for the locations of all fire rated ceilings, floors

and walls. The contractor shall furnish detailed shop drawings of all firestopping details to be

used for both piping and ductwork. All firestopping details shall be U.L. listed and subject to

approval by the Authority having jurisdiction.

PART 3 - EXECUTION

3.01 INSPECTION AND PREPARATION:

A. Substrate Examination: The Installer of each element of the mechanical work must examine

the condition of the substrate to receive the work, and the conditions under which the work

will be performed, and must notify the Contractor in writing of conditions detrimental to the

proper completion of the work. Do not proceed with the work until unsatisfactory conditions

have been corrected in a manner acceptable to the Installer.

B. Do not proceed with the installation of sleeves, anchors, hangers, roof penetrations and



similar work until mechanical coordination drawings have been processed and released for

construction. Where work must be installed prior to that time in order to avoid a project

delay, review proposed installation in a project coordination meeting including all parties

involved with the interfacing of the work.

3.02 CUTTING AND PATCHING:

A. Structural Limitations: Do not cut structural framing, walls, floors, decks and other members

intended to withstand stress, except with the Architect's or Engineer's written authorization.

B. Where authorized, cut opening through concrete (for pipe penetrations and similar services)

by core drilling or sawing. Do not cut by hammer-driven chisel or drill.

C. Other work: Do not endanger or damage other work through the procedures and processes of

cutting to accommodate mechanical work. Review the proposed cutting with the Installer of

the work to be cut, and comply with his recommendations to minimize damage. Where

necessary, engage the original Installer or other specialists to execute the cutting in the

recommended manner.

D. Where patching is required to restore other work, because of either cutting or other damage

inflicted during the installation of mechanical work, execute the patching in the manner

recommended by the original Installer. Restore the other work in every respect, including the

elimination of visual defects in exposed finishes, as judged by the Architect. Engage the

original Installer to complete patching of the following categories of work:

1. Exposed concrete finishes and exposed masonry.

2. Waterproofing and vapor barriers.

3. Roofing, flashing and accessories.

4. Interior exposed finishes and casework, where judged by the Architect to be difficult to

achieve an acceptable match by other means.

3.03 COORDINATION OF MECHANICAL INSTALLATION:

A. General: Sequence, coordinate and integrate the various elements of mechanical work so that

the mechanical plant will perform as indicated and be in harmony with the other work of the

building. The Architect/Engineer will not supervise the coordination, which is the exclusive

responsibility of the Contractor. Comply with the following requirements:

1. Install piping, ductwork and similar services straight and true, aligned with other work

and with overhead structures and allowing for insulation. Conceal where possible.

2. Arrange work to facilitate maintenance and repair or replacement of equipment. Locate

services requiring maintenance on valves and similar units in front of services requiring

less maintenance. Connect equipment for ease of disconnecting, with minimum of

interference with other work.

3. Equipment located above ceilings shall be installed in a position and elevation which

allows complete and adequate maintenance access through the ceiling grid or access

panel while standing safely on a ladder. If this is not possible, a suitable maintenance

platform must be provided per IMC.

4. Give the right-of way to piping systems required to slope for drainage (over other service

lines). Piping shall be located to avoid interference with ductwork and light fixtures.

5. Store materials off the ground and protected from standing water and weather.



B. Drawings: Conform with the arrangement indicated by the contract documents to the greatest

extent possible, recognizing that portions of the work are shown only in diagrammatic form.

Where coordination requirements conflict with individual system requirements, comply with

the Architect's decision on resolution of the conflict.

C. Electrical Work: Coordinate the mechanical work with electrical work, and properly

interface with the electrical service. In general, and except as otherwise indicated, install

mechanical equipment ready for electrical connection. Refer to electrical sections of the

specifications for electrical connection of mechanical equipment.

D. Duct Smoke Detectors: All HVAC duct smoke detectors, including smoke detectors for

smoke dampers, shall be furnished by Division 26 and installed by Division 23. In buildings

equipped with a fire alarm system, all duct smoke detectors must be compatible with the fire

alarm system and must be connected to the fire alarm system for notification. All fire alarm

wiring and associated devices shall be furnished and installed by the fire alarm system

installer. In buildings not equipped with a fire alarm system, each duct smoke detector must

have a remote device where actuation of the duct smoke detector shall activate a visible and

an audible signal in an approved location. Duct smoke detector trouble conditions shall

activate a visible or audible signal in an approved location and shall be identified as “Air

Duct Detector Trouble.” Each smoke detector shall be wired into the respective fan control

circuit to automatically shut down the fan upon sensing products of combustion.

E. Utility Connections: Coordinate the connection of mechanical systems with exterior

underground utilities and services. Comply with the requirements of governing regulations,

franchised service companies and controlling agencies. Provide a single connection for each

service except where multiple connections are indicated.

3.04 COORDINATION OF MECHANICAL START-UP:

A. Seasonal Requirements: Adjust and coordinate the timing of mechanical system start-ups

with seasonal variations, so that demonstration and testing of specified performance can be

observed and recorded. Exercise proper care in off-season start-ups to ensure that systems

and equipment will not be damaged by the operation.

B. Painting and Air Distribution: Coordinate the initial cleaning and start-up of the air

distribution system, to occur prior to preparatory cleaning and general interior painting and

decorating on the project. The HVAC system should not be operated until drywall work is

completed. Drywall dust must not be allowed to contaminate the interior of air handing units

and ductwork. Use high efficiency temporary filters until project closeout.



215-14 23 0220 - 1 MECHANICAL SUBMITTALS

SECTION 23 0220

MECHANICAL SUBMITTALS

PART 1 - GENERAL




1.02 SUBMITTAL FORMS AND PROCEDURES:

A. The purpose of submittals is to demonstrate to the Architect/Engineer that the Contractor

understands the design concept. The Architect/Engineer's review of such drawings,

schedules, or cuts shall not relieve the Contractor from responsibility for deviation from

drawings or specifications unless he has, in writing, called the Architect/Engineer's attention

to such deviations at the time of submission, and has received from the Architect/Engineer, in

writing, permission for such deviations. All submittals must be completely checked by the

Contractor prior to submission for review.

B. Hard Copy Submittals: Submittal data shall be placed in one or more hard-back 3-ring

binders, arranged and labeled according to specification section. Each binder shall contain a

title page and table of contents. Provide separator tabs, and label by specification section.

Make note in the table of contents, any drawings that accompany the submittal. Title page

shall contain Project Name, Contractor’s Name, Division 23 Superintendent’s name,

Suppliers and point of contact for each, and date. Except as otherwise indicated in other

sections, submit 5 complete copies. Quantity indicated does not include copies required for

regulatory agencies.

C. Electronic Submittals: If the Architect agrees to allow electronic submittals via an on-line

information management product such as “Submittal Exchange,” etc., all electronic submittal

files shall be organized to match the bid documents for specification section and name. Each

submittal file shall be complete for each specification section. Multiple partial submittals per

specification section will be rejected. Make note in the table of contents, any drawings that

accompany the submittal. Title page shall contain Project Name, Contractor’s Name,

Division 23 Superintendent’s name, Suppliers and point of contact for each, and date.

D. Submittals shall be made for all items contained in the following specification sections:

1. Mechanical Identification

2. Mechanical Pipe, Tube, and Fittings

3. Mechanical Hangers and Supports

4. Mechanical Water Piping System

5. Ductwork and Accessories

6. Air Distribution

7. Fans

8. Kitchen Hood Ventilation System

9. Electric Heaters

10. Air Treatment Systems

11. Rooftop Air Conditioners

12. Ductless Heat Pumps

13. VRF Heat Pumps



14. Energy Recovery Ventilators

15. Energy Management Control System

16. Mechanical Sound, Vibration, Wind and Seismic Control

17. Mechanical Testing, Adjusting, Balancing

18. Mechanical Commissioning

E. Response to Submittals: A Submittal Review Report shall be issued by the

Architect/Engineer with the following classifications for each item:

1. "No Exceptions Taken": No corrections, no marks. Contractor shall submit copies for

distribution.

2. "Make Corrections Noted": A few minor corrections. Items may be ordered as

marked up without further resubmission. Submit copies for distribution.

3. "Revise and Resubmit": Minor corrections. Item may be ordered at the Contractor's

option. Contractor shall resubmit drawings with corrections noted.

4. "Rejected": Major corrections or not in accordance with the contract documents. No

items shall be ordered. Contractor shall correct and resubmit drawings.

PART 2 - PRODUCTS

2.01 SUBMITTAL REQUIREMENTS:

A. General: Each specification section shall list the required submittal items. All submittal

items shall conform to the requirements listed below. For each major section of submittal

data, include a summary page which lists items and model numbers for each piece of

equipment.

B. Shop Drawings: Prepare mechanical shop drawings to accurate scale except where

diagrammatic representations are specifically indicated. Show clearance dimensions of

critical locations, and show dimensions of spaces required for operation and maintenance of

equipment. Show piping connections and other service connections, and show interface with

other work including structural support. Indicate by note, the portions of mechanical work

shown on the shop drawings which deviated from the indication of work in the contract

documents, and explain the reasons for the deviations. Show how such deviations coordinate

with interfacing deviations on shop drawings for other portions of the work, currently or

previously submitted.

C. Manufacturer's Data: Where pre-printed data is submitted for more than one distinct product,

size, type, material, trim, accessory group or other variation, mark submitted copy with black

pen to indicate which of the variations is to be provided. Delete or mark-out significant

portions of preprinted data which are not applicable. Where operating ranges are shown,

mark data to show portion of range required for project application. Expansion or elaboration

of standard data to describe a non-standard product must be processed as a shop drawing

submittal. For each product include the manufacturer's production specifications, installation

or fabrication instructions, nearest source of supply (including telephone number), sizes,

weights, speeds, operating capacities, piping and service line connection sizes and locations,

statements of compliance with required standards and governing regulation (include

manufacturer's signed statements if not covered in printed data), performance data (where

applicable) and similar information needed to confirm compliance with the requirements.

D. Certifications: Where specifically indicated, submit with notarized execution.



E. Test Reports: Submit test reports which have been signed and dated by the firm performing

the test and prepared in the manner specified in the standard or regulation governing the test

procedures as indicated.

F. Manufacturer's Product Warranties: Where pre-printed and published warranty includes

substantial deviation from required warranty (as judged by the Architect or Engineer),

product is automatically disqualified from use on the project, except where manufacturer

prepares and issues a specific product warranty on the product, stating that it is in lieu of the

published warranty, and is executed by an authorized officer, and complies with the

requirements. Warranties shall comply with the requirements of individual specification

section where those requirements exceed the manufacturer's standard warranty.

PART 3 - EXECUTION

3.01 CLOSEOUT REQUIREMENTS:

A. Operating Instructions: Submit manufacturer's operating instructions for each item of

mechanical equipment and supplement with additional project application instructions where

necessary. Prepare and submit specific operating instructions for charging, start-up, control

or sequencing of operation, phase or seasonal variations, shut-down, safety and similar

operational instructions. Prepare in typewritten form in completely explained and easily

understood English language.

B. Maintenance Manuals: Organize each copy of the required system maintenance manuals to

include an index followed by thumb-tab marked sections for each of the following:

1. System operating instructions.

2. Emergency instructions including addresses and telephone numbers of service sources.

3. Regular system maintenance procedures including lubrication.

4. Spare parts listing and stocking recommendations.

5. Inspection, adjusting, rebalancing, cleaning, parts replacement, and similar maintenance

instructions and recommendations, including the proper use of tools and accessories.

6. Valve schedule and control diagram for each system.

7. Manufacturer's data for each operating item in each system.

8. Manufacturer's product warranties and guarantees relating to the system and equipment

items in the system.

9. Corrected or approved issues of submittal items relating to the system.

10. Bind each maintenance manual in one or more vinyl-covered, 2", 3-ring binder, plus

pocket-folder type binders for folded drawings, and mark the back spine of each binder

with system identification and volume number.

C. Maintenance Materials: Deliver to Owner’s representative at the location as directed, in

containers or packages suitable for storage and fully identified.

D. Guarantees: Where indicated as "Certified", provide guarantee which, in addition to

execution by an authorized officer of each guarantor, is attested to by the Secretary of each

guarantor and bears the corporate seal.



215-14 23 0230 - 1 MECHANICAL IDENTIFICATION

SECTION 23 0230

MECHANICAL IDENTIFICATION

PART 1 - GENERAL





A. Manufacturers: Firms regularly engaged in the manufacture of identification systems

required for this product.

B. Submittals: Submit manufacturer's data on materials and submit a sample of each type

required.

PART 2 - PRODUCTS

2.01 MECHANICAL IDENTIFICATION MATERIALS:

A. Plastic Pipe Markers:

1. General: Product manufacturer's standard pre-printed, flexible or semi-rigid, permanent,

color-coded, plastic-sheet pipe markers, complying with ANSI A13.1.

2. Small Pipe: For external diameters less than 6 inches (including insulation, if any),

provide full band pipe markers, extending 360 degrees around pipe at each location,

fastened by one of the following methods:

a. Snap-on application of pre-tensioned semi-rigid plastic pipe marker.

b. Adhesive lap joint in pipe marker overlap.

c. Laminated or bonded application of pipe marker to pipe (or insulation).

d. Taped to pipe (or insulation) with color-coded plastic adhesive tape, not less than 3/4

inch wide; full circle at both ends of pipe marker, tape lapped 1-1/2 inch.

3. Lettering: Comply with piping system names as specified, scheduled or shown, and

abbreviate only as necessary for each application length.

4. Install pipe markers on the following systems:

Refrigerant Piping

HVAC Drain Piping

B. Plastic Tape: Manufacturer's standard color-coded pressure-sensitive (self-adhesive) vinyl

tape, not less than 3 mils thick.

1. Width: Provide 1-1/2 inches wide tape markers on pipes with outside diameters

including insulation of less than 6 inches, 2-1/2 inches wide tape on larger pipes.

2. Color: Comply with ANSI A13.1.

C. Engraved Plastic-Laminate Signs:

1. General: Provide engraving stock melamine plastic laminated, complying with FS L-

P-387, in the sizes and thicknesses indicated, engraved with engraver's standard letter



style of the sizes and wording indicated, black with white core, letter color, except as

otherwise indicated, punched for mechanical fastening except where adhesive mounting

is necessary because of substrate.

2. Thickness: 1/16 inch, except as otherwise indicated.

3. Fasteners: Self-tapping stainless steel screws, except contact type permanent adhesive

where screws cannot or should not penetrate the substrate.

2.02 LETTERING AND GRAPHICS:

D. General: Coordinate names, abbreviations and other designations used in the mechanical

identification work, with the corresponding designations shown, specified or scheduled.

Provide numbers, lettering recommended by manufacturers or as required for proper

identifications and operation/maintenance of the mechanical systems and equipment.

E. Multiple Systems: Where multiple systems of the same generic name are shown and

specified, provide identification which indicates the individual system number as well as the

service; as examples, Heat Pump No. HP-1, Exhaust Fan No. EF-1.

PART 3 - EXECUTION

3.01 APPLICATION AND INSTALLATION:

A. Coordination: Where identification is to be applied to surfaces which require insulation,

painting and other covering or finish, install identification after completion of covering or

painting.

B. All equipment, dampers, filters, valves, etc. located above ceiling grids shall be located with

an engraved marker permanently attached to the ceiling grid. The marker shall describe the

item located above the ceiling.

C. Piping System Identification:

a. General: Install pipe markers on each system indicated to receive identification.

D. Locate pipe markers as follows wherever piping is exposed to view in mechanical rooms,

accessible maintenance spaces (including accessible areas above ceilings) and exterior non-

concealed locations:

a. Near each branch, excluding short take-offs for fixtures. Mark each pipe at branch,

where there could be a question of flow pattern.

b. Near locations where pipes pass through walls or ceilings, or enter non-accessible

enclosures.

c. Near major equipment items and other points of origination and termination.

d. Spaced intermediately at maximum spacing of 50 feet along each piping run, except

reduce spacing to 25 feet in congested areas of piping and equipment.

E. Do not mark piping exposed in finished occupied spaces.

F. Mechanical Equipment Identification: Install an engraved plastic laminate sign on or near

each major item of mechanical equipment and each operational device, as specified herein if

not otherwise specified for each item or device. Provide signs for all major items of

mechanical equipment.





215-14 23 0240 - 1 MECHANICAL WORK CLOSEOUT

SECTION 23 0240

MECHANICAL WORK CLOSEOUT

PART 1 - GENERAL




1.02 DOCUMENTATION PROCEDURES:

A. Signed Commitments: Do not proceed with transfer of mechanical plant to the Owner for

operation until warranties, performance certifications and similar commitments to be signed

by Contractor and other entities have been executed and transmitted to Architect (for Owner's

records).

1.03 RECORD DRAWINGS:

A. Explanation: Except where otherwise indicated, mechanical drawings (contract drawings)

prepared by Architect/Engineer, contract/drawings, are diagrammatic in nature and may not

show locations accurately for various components of mechanical systems. Shop drawings,

including coordination drawings, prepared by Contractor shall show certain portions of work

more accurately to scale and location, and in greater detail.

B. General Recording Procedure: Maintain a white-print set, blue-line or black-line, of

mechanical contract drawings and shop drawings in clean, undamaged condition, for mark-up

of actual installations which vary substantially from the work as shown. Mark-up whatever

drawings are most capable of showing the installed conditions accurately; however, where

shop drawings are marked, record a reference note on appropriate contract drawing. Mark

with erasable pencil and use multiple colors to aid in the distinction between work of separate

mechanical systems. In general, record every substantive installation of mechanical work

which previously is either not shown or shown inaccurately, but in any case record the

following:

1. Aboveground piping, both exterior and interior, drawn to scale and fully dimensioned.

2. “Mechanical Project Record" shall be maintained as part of the "Project Record"

specified in Division 1.

PART 2 – PRODUCTS

2.01 NOT APPLICABLE:

PART 3 - EXECUTION

3.01 CLOSEOUT PROCEDURES:

A. General Coordination: Sequence closeout procedures properly, so that work will not be

endangered or damaged, and so that every required performance will be fully tested and

demonstrated.

B. System Performance Test Run: At the time of mechanical work closeout, check each item in



each system to determine that it is set for proper operation. With Owner's representative and

Architect/Engineer present, operate each system in a test run of appropriate duration to

demonstrate compliance with performance requirements. During or following test runs, make

final corrections or adjustments of system to refine and improve performances wherever

possible, including noise and vibration reductions, elimination of hazards, better response of

controls, signals and alarms, and similar system performance improvements. Provide testing

or inspection devices as may be requested for Architect's/Engineer's observation of actual

system performances. Demonstrate that controls and items requiring service or maintenance

are accessible. Test run shall be scheduled to coincide with Engineer's final inspection of the

mechanical work.

C. Cleaning and Lubrication: After final performance test run of each mechanical system, clean

system both externally and internally. Clean dirt and debris from air handling systems and

install new filters. Flush piping system by operating drains and similar means, and clean

strainers and traps. Lubricate both power and hand operated equipment and remove excess

lubrication. Touch-up minor damage to factory painted finishes and other painting specified

as mechanical work; refinish work where damage is extensive.

D. General Operating Instructions: In addition to specified training of Owner's operating

personnel specified in individual mechanical sections, and in addition to preparation of

written operating instructions and compiled maintenance manuals specified, provide general

operating instructions for the total mechanical plant. Conduct a walk-through explanation

and demonstration for orientation and education of Owner's personnel to be involved in

continued operation of building and its mechanical plant.

1. Describe each basic mechanical system and how its control system functions, including

flow adjustments, temperature control and similar operations.

2. Explain and point out identification system, displayed diagrams, signals, alarms and

similar provisions of the work.

3. Describe basic sequencing requirements and interlock provisions for system start-up,

phasing, coast-down, shut-down and seasonal operations.

4. Emphasize emergency procedures and safety provisions for protection of equipment and

safety of occupants during equipment malfunction, disasters, power failures and similar

unusual circumstances, and describe system limitations and precautions including

weather adjustments.

5. Outline basic maintenance procedures.

E. Demonstrate what adjustments have been made and can continue to be made to reduce noise

and vibration, improve system output, decrease energy consumption and similar performance

improvements.

F. Point out operational security provisions, safety, unavoidable hazards and similar operator

limitations. Display and conduct a "thumb-through" explanation of maintenance manuals,

record drawings, meter readings and similar service items.

G. Construction Equipment: After completion of performance testing and Owner's operating

instructions and demonstrations, remove installers tools, test facilities, construction

equipment and similar devices and materials used in execution of the work but not

incorporated in the work.

3.02 CONTINUED SYSTEM OPERATIONS:



A. Final Acceptance: At time of substantial completion of mechanical work, Owner's operating

personnel will take over operation of mechanical systems. However, until time of final

acceptance, respond promptly with consultation and services on whatever operation or

maintenance problems may remain or arise in continued operation of mechanical plant.



215-14 23 0310 - 1 MECHANICAL PIPE, TUBE AND FITTINGS

SECTION 23 0310

MECHANICAL PIPE, TUBE AND FITTINGS

PART 1 - GENERAL





A. Industry Standards:

1. Qualify welding procedures, welders and operators in accordance with ASME B31.1 for

shop and project site welding of piping work.

2. Certify welding of piping work using the Standard Procedure Specifications by, and

welders tested under supervision of, the National Certified Pipe Welding Bureau.

B. SUBMITTALS:

1. Submit manufacturer's data, welding certifications, test reports, and product warranties as

applicable for all piping materials.

PART 2 - PRODUCTS

2.01 PIPING MATERIALS:

A. General: Provide pipe and tube of the type, joint type, grade, size and weight (wall thickness

or Class) indicated for each service. Where type, grade or class is not indicated, provide

proper selection as determined by Installer for installation requirements and comply with

governing regulations and industry standards.

B. Copper Tube: ASTM B88-89 Type with wall thickness as recommended by equipment

manufacturer, except as otherwise indicated.

C. Plastic Pipe: PVC-WATER: ASTM D2466-88

2.02 PIPE/TUBE FITTINGS:

A. General: Provide factory-fabricated fittings of the type, materials, grade, class and pressure

rating indicated for each service and pipe size. Provide sizes and types matching pipe, tube

valve or equipment connections in each case. Where not otherwise indicated, comply with

governing regulations and industry standards for selections, and with pipe manufacturer's

recommendations where applicable.

B. Soldering Materials: Except as otherwise indicated, provide soldering materials as

determined by the Installer to comply with installation requirements.

1. Tin-Antimony Solder: ASTM B 32, Grade 95TA.

C. Solvent Cement for PVC Joints: D2564-88.



D. Pipe Sleeves:

1. Iron Pipe Sleeves: Fabricate from Schedule 40 galvanized steel pipe; remove burrs.

2. Sheet Metal Pipe Sleeves: Fabricate from galvanized sheet metal closed with lock-seam

joints. For following pipe sizes provide gauge indicated: 3 inch pipe and smaller, 20

gauge; 4 to 6 inch pipe, 16 gauge; over 6 inch pipe, 14 gauge.

3. Pipe Sleeve Caulking: 3M Fire Barrier Caulk, CP25N/S, or equal by STI or Grabber.

PART 3 - EXECUTION

3.01 INSTALLATION:

A. General: Install pipe, tube and fittings in accordance with recognized industry practices

which will achieve permanently-leakproof piping systems, capable of performing each

indicated service without piping failure. Install each run with a minimum of joints and

couplings, but with adequate and accessible unions for disassembly and maintenance/

replacement of valves and equipment. Reduce sizes (where indicated) by use of reducing

fittings. Align piping accurately at connections, within 1/16" misalignment tolerance.

1. Comply with ASME B31.1 Code for Pressure Piping.

B. Locate piping runs as indicated on the drawings. Route vertically and horizontally (pitched to

drain) and avoid diagonal runs wherever possible. Orient horizontal runs parallel with walls

and column lines. Locate runs as shown, or described by diagrams, details and notations or,

if not otherwise indicated, run piping in the shortest route which does not obstruct usable

space or block access for servicing the building and its equipment. Where possible, locate

insulated piping for 1.0" clearance outside insulation. Changes in direction shall be made

with fittings.

C. Piping System Joints: Provide joints of the type indicated in each piping system.

D. Soldered Joints: Solder copper tube and fitting joints where required, in accordance with

recognized industry practice. Cut tube ends squarely, ream to full inside diameter, and clean

outside of tube ends and inside of fittings with steel wool. Apply solder flux to joint areas of

both tubes and fittings. Insert tube full depth into fitting and solder in manner which will

draw solder full depth and circumference of joint. Wipe excess solder from joint before it

hardens. Use a non-corrosive paste flux and wire solder composed of 95 percent tin and 5

percent antimony.

E. Plastic Pipe/Tube Joints: Comply with manufacturer’s instructions and recommendations and

with applicable industry standards.

F. Pipe Sleeves: Install pipe sleeves of the types specified wherever piping passes through the

walls, floors or structural members of the work. Provide sleeves of adequate size, accurately

centered in pipe runs. Size sleeves so that piping and insulation will have free movement in

the sleeve, including allowance for thermal expansion. Where insulation includes a vapor

barrier covering provide sleeve with sufficient clearance for installation of vapor barrier.

Install length of sleeve equal to thickness of construction penetrated, except extend floor

sleeves 0.25 inches above floor finish. Provide temporary support of sleeves during

placement of concrete and other work around sleeves and provide temporary closure to

prevent concrete and other materials from entering pipe sleeves.



1. Sleeve Type: At interior partitions and ceilings, install sheet metal sleeves.

2. Sleeve Type: At exterior penetrations both above and below grade, install iron pipe

sleeves.

3. Sleeve Type: Except as otherwise specified, install steel pipe sleeves.

4. Caulk pipe sleeves at exterior penetrations and at other locations where indicated.

Provide sufficient quantities of oakum and lead to make permanent weather-tight closure

between sleeve and piping, slightly recessed at exposed surface.

3.02 CLEANING, FLUSHING AND INSPECTING:

A. General: Clean exterior surfaces of installed piping systems of superfluous materials and

prepare for application of specified coatings.

B. Flush out piping system with clean water before proceeding with required tests. Inspect each

run of each system for completion of joints, supports and accessory items.

3.03 PIPING TESTS:

A. General: Provide temporary equipment for testing, including pump and gages. Test piping

systems before insulation is installed wherever feasible, and remove control devices before

testing. Test each natural section of each piping system independently, but do not use piping

system valves to isolate sections where test pressure exceeds valve pressure rating.

1. Required test period is 2 hours.

B. Unless otherwise specified for specific systems, test each pressurized piping system at 150%

of operating pressure indicated, but not less than 100 psig test pressure.

C. Observe each test section for leakage at end of test period. Test fails if leakage is observed or

if pressure drop exceeds 5% of test pressure.

D. Repair piping systems sections which fail the required piping test, by disassembly and re-

installation, using new materials to the extent required to overcome leakage. Do not use

chemicals, stop-leak compound, mastics, or other temporary repair methods.



2215-14 23 0320 - 1 MECHANICAL HANGERS AND SUPPORTS

SECTION 23 0320

MECHANICAL HANGERS AND SUPPORTS

PART 1 - GENERAL




1.02 SUBMITTALS:

A. Provide manufacturer's data, test reports, and product warranties on all items.

PART 2 - PRODUCTS

2.01 HANGERS AND SUPPORTS:

A. General: Except as otherwise indicated, provide factory-fabricated piping hangers and

supports of the type specified complete with bolts and washers. Comply with the

manufacturer's published product information. Size hangers and supports properly for piping

and weight of the medium being transported. Provide insulation shields for all insulated

piping.

B. Hangers for refrigerant lines shall be copper plated band type with adjusting nut; Grinnell,

Fig. CT-69, B-Line Fig. B3172CT, or equivalent by Michigan Hanger, PHD Manufacturing

or Hubbard Enterprises/Holdrite.

C. Hangers for HVAC drain piping shall be the standard clevis type B-Line Fig. B3100 or

equivalent by Grinnell, Michigan Hanger, PHD Manufacturing or Hubbard

Enterprises/Holdrite.

PART 3 - EXECUTION

3.01 HORIZONTAL PIPING SUPPORT:

A. Minimum spacing of hangers and supports for above-ground horizontal pipe and tubing shall

be as follows:

1. Copper Tubing:

Tubing Size Support Spacing

(inches) (feet)

3/4 and smaller 5

1 to 2-1/2 6

3 10

4 and larger 12

2. Plastic Pipe:

Nominal Pipe Size Support Spacing

(inches) (feet)


2215-14 23 0320 - 2 MECHANICAL HANGERS AND SUPPORTS

3/4 3.0

3/4 to 1 3.5

1-1/4 to 1-1/2 4.0

2 to 2-1/2 4.5

3 and larger 5.5

B. Prevent electrolysis in the support of copper tubing by the use of hangers and supports which

are copper plated, or by other recognized industry methods.

C. Branch piping located in walls, partitions or pipe chases shall be rigidly supported inside the

wall or chase.

D. Piping installed above a roof shall be supported on pre-fabricated, non-penetrating supports

by Pipe Pier or approved equal. Provide matching adjustable elevation kits.

3.02 VERTICAL PIPING SUPPORT:

A. Plastic Piping: Support at 8 feet maximum intervals and near each joint.

B. Copper Tubing: Support at riser tops and 5 feet maximum on center for pipe 1-1/2” and

larger and 4 feet on center for pipe 1-1/4” and smaller. Use copper plated pipe clamps.

3.03 ADJUSTMENT OF HANGERS AND SUPPORTS:

A. Adjust hangers and supports to bring piping to proper level, elevations and slopes.



215-14 23 1110 - 1 MECHANICAL WATER PIPING SYSTEM

SECTION 23 1110

MECHANICAL WATER PIPING SYSTEM

PART 1 - GENERAL




1.02 DESCRIPTION OF WORK:

A. The extent of mechanical water piping work is indicated by the drawings and by the

requirements of this section and includes the following:

1. HVAC Drain Piping (D)

1.03 SUBMITTALS:

A. Submit manufacturer's data, test reports, and product warranties as applicable for all items.

PART 2 - PRODUCTS

2.01 PIPING MATERIALS:

A. General: Comply with Section 230310 for product requirements of piping materials. For

each service, provide the piping materials indicated including pipe, fittings, hangers,

supports, anchors, valves and accessories. Where more than one type is indicated, selection

of one type is Installer's option. Where type is not otherwise indicated, provide materials in

accordance with industry standards or governing regulations.

2.02 HVAC DRAIN PIPING:

A. All Pipe Sizes: Schedule 40 PVC.

B. Fittings: Socket type fittings with solvent cement joints.

2.03 ACCESSORIES:

A. All HVAC drain piping located indoors shall be insulated with 1” thick fiberglass insulation

with ASJ. Elbows and fittings shall have molded insulation, not mitered joints. Provide

insulation shields at all hangers.

PART 3 - EXECUTION

3.01 INSTALLATION OF PIPING:

A. General: Comply with requirements of Section 230310 for installation of basic piping

materials.

B. PVC Piping Outdoors: All PVC piping located outdoors shall receive two coats of white

latex paint for UV protection.


215-14 23 1110 - 2 MECHANICAL WATER PIPING SYSTEM

C. HVAC drain piping shall slope toward drain points at minimum 1” per 10 foot.

3.02 INSTALLATION OF ACCESSORIES:

A. Install premanufactured accessories in accordance with the manufacturer's instructions and

recommendations.

3.03 INSPECTION:

A. Each length of pipe shall be inspected prior to installation. Ends of open pipe shall be

temporarily capped to prevent entry of foreign material prior to connections to other piping or

equipment.

3.04 TESTING:

A. Comply with requirements of Section 230310.



215-14 23 2110 - 1 DUCTWORK AND ACCESSORIES

SECTION 23 2110

DUCTWORK AND ACCESSORIES

PART 1 - GENERAL





A. Industry Standards:

1. Comply with SMACNA (Sheet Metal and Air Conditioning Contractor's National

Association) recommendations for fabrication, construction and details and installation

procedures, except as otherwise indicated.

2. Comply with ASHRAE (American Society of Heating, Refrigerating and Air

Conditioning Engineers) recommendations, except as otherwise indicated.

3. Provide composite ductwork insulation (insulation, coverings, sealers, mastics and

adhesives) with flame-spread rating of 25 or less and a smoke-developed rating of 50 or

less, as tested by ASTM E84 (NFPA 255) method.

4. Provide duct connectors which comply with applicable portion of UL 181 and bear label

of Underwriter's Laboratories.

1.03 SUBMITTALS:

A. Provide manufacturer's data, test reports, and product warranties as applicable for all items.

PART 2 - PRODUCTS

2.01 ABOVE GROUND DUCTWORK:

A. General: Galvanized steel ductwork shall be used for all supply, return, exhaust, and

ventilation ducts except as indicated otherwise by the contract documents. Black steel

ductwork shall be used for kitchen hood exhaust. Stainless steel duct shall be used for

dishwasher exhaust. Preinsulated flexible duct shall be used to make final concealed

connections to diffusers, registers, and grilles. Length of flexible duct shall not exceed five

feet.

B. Galvanized Steel Ductwork: Ducts shall be fabricated from G90 galvanized sheet steel

complying with ASTM A527 and A525, lockforming quality. Concealed round ducts shall

be the spiral seam type or snap-lock type with matching fittings.

C. Black Steel Ductwork: Kitchen hood exhaust ducts shall be fabricated from 16 gauge black

steel.

D. Stainless Steel Ductwork: Exposed ducts shall be fabricated from Type 316 stainless steel,

sheet form, with No. 4 finish.

E. Flexible Ducts: Flexible ducts shall be U.L. Listed as Class 1 Flexible Air Duct Material and

shall comply with NFPA Standards 90A and 90B. Duct shall be a factory fabricated



assembly composed of a polymeric liner duct bonded permanently to a coated spring steel

wire helix and supporting a fiberglass insulating blanket with a minimum R-value of 4.2.

Low permeability outer vapor barrier of fiberglass reinforced film laminate shall complete the

assembly. Duct shall be suitable for low and medium pressure systems and shall carry a full

5-year warranty. For all flexible duct connections to diffusers, registers and grilles, provide

rigid elbow brace accessory with one duct diameter centerline radius. Acceptable

manufacturers are Atco, Flexmaster, Genflex and Thermaflex.

2.03 DUCTWORK ACCESSORIES:

A. General: Except as otherwise indicated for each ductwork accessory, provide metal type,

gauge, weight, construction and reinforcing as required by size limitations, and applicable

SMACNA standards, including fittings, supports and appurtenances.

B. Flexible Connectors: Provide flexible connectors between supply and return duct

connections to equipment and as otherwise indicated on the drawings. Flexible connector

shall be constructed of neoprene permanently attached to 3 inch wide metal bands.

Connector shall be UL listed and shall be as manufactured by Durodyne, Ventfabrics or

Young Regulator.

C. Balancing Dampers: Provide single blade dampers for round ducts and rectangular ducts less

than 12” as indicated on the drawings. Dampers shall be constructed of galvanized steel.

Damper shall be installed complete with locking quadrants. For rectangular ducts 12” and

wider, provide opposed-blade type dampers constructed of galvanized steel mounted in a

galvanized steel channel frame. Blade spacing shall not exceed 6” and the top and bottom

edges of the blades shall be crimped to stiffen the blades. Damper blades shall be

interconnected by rods and linkages to provide simultaneous operation of all blades. Damper

shall be provided with an extended rod to permit installation of a damper regulator. Dampers

shall be as manufactured by Air Balance, Arrow, Dowco, Jer-Air, National Controlled Air,

Ruskin, Phillips-Aire, Safe-Air and United.

D. VAV Dampers: VAV dampers shall consist of a minimum 22 gauge galvanized steel damper

blade mounted in a minimum 18 gauge galvanized steel housing with crimped ends and a 24

VAC reversible electric actuator. Power supply shall be 120 VAC. A matching remote

adjustable space temperature sensor and integral entering air temperature sensor shall control

the damper position to maintain room setpoint. Provide all accessories for complete, stand-

alone operation. Dampers shall be by Carrier, Trane and York.

E. Round Take-Offs: Round take-offs shall be made using collars constructed of galvanized

steel equipped gasket flange and manual balancing damper with 2 inch handle standoff. Do

not furnish extractors or air scoops. Take-offs from low pressure rectangular trunk ducts

shall have 45 degree entry. Takeoffs shall be by Celcon, Crown, Flexmaster, Jer-Air,

Metalcraft, Sheet Metal Connectors, Thermaflex and United.

F. Rectangular Take-Offs: Rectangular take-offs shall be made using collars constructed of

galvanized steel equipped with gasket flange and manual balancing damper with 2 inch

handle standoff. Do not furnish extractors or air scoops. All takeoffs shall have 45 degree

entry. Takeoffs shall be by Celcon, Crown, Flexmaster, Jer-Air, Metalcraft, Sheet Metal

Connectors, Thermaflex and United.

G. Fire Dampers (Walls and Floors): Provide curtain type, hinged blade, vertical and/or

horizontal mounting fire dampers, suitable for duct penetration or opening protection as



required on the drawings. Style ‘A’ dampers shall be used at wall register/grille locations.

Style ‘B’ dampers shall be used at duct penetrations. Dampers shall meet the requirements of

NFPA 90A and UL-555. Frame shall be minimum 20 gauge galvanized steel with 165

degree F fusible link. Blades shall be minimum 24 gauge galvanized steel. Dampers shall be

as manufactured by Air Balance, Greenheck, Nailor, National Controlled Air, Phillips-Aire,

Prefco, Ruskin, Safe-Air and United.

H. Smoke Dampers: Provide UL Classified Low Leakage smoke dampers suitable for duct

penetration or opening protection as required on the drawings. Dampers shall meet the

requirement of NFPA 90A and UL-555S. Frame shall be minimum 16 gauge galvanized

steel. Blades shall be minimum 14 gauge galvanized steel airfoil design with silicon rubber

edge seals, Leakage Class 1. The assembly shall include a 120 VAC 2-position actuator,

power-to-open, spring-to-close. Interlock with the building fire alarm system to close on an

alarm condition. Smoke detectors will be furnished and installed by Division 26. Dampers

shall be as manufactured by Air Balance, Greenheck, Nailor, National Controlled Air,

Phillips-Aire, Prefco, Ruskin, Safe-Air and United.

I. Access Doors: Duct access doors shall be provided at all fire dampers, smoke dampers,

combination fire/smoke dampers, and at control items mounted within ducts. Access doors

shall be the double-wall insulated type constructed of galvanized steel not less than 24 gauge

for the door and 22 gauge for the frame. Insulation shall be 1 inch thick and shall be rigid

and self-sealing. Doors shall have cam locks on at least two sides. Frame shall have

knockover edges for attachment to duct by preening and a vinyl gasket shall be provided

between duct and frame. Doors shall be as large as possible and as close as possible to the

item served. Door shall be by Air Balance, Greenheck, Nailor, National Controlled Air,

Phillips-Aire, Prefco, Ruskin, Safe-Air and United.

2.04 DUCTWORK INSULATION:

A. General: Refer to the mechanical plans for duct insulation types and locations. Insulation

shall be as manufactured by Certainteed, Knauf, Manville and Owens Corning.

B. Duct Wrap: Type “A” Duct wrap shall be 2” thick, 0.75 pcf density, blanket type fiberglass

insulation with vapor barrier and minimum R-Value of 6.7.

C. Duct Liner: Type “A” Duct liner shall be 1” thick, 1.5 pcf density, flexible black fiberglass

with minimum R-Value of 3.6.

D. Duct Board: Exterior board type insulation shall be 2” thick, 3 pcf density with minimum R-

Value of 8.0. Insulating board shall be faced with foil reinforced Kraft (FRK) vapor barrier.

E. Kitchen Hood Exhaust Duct Insulation: All kitchen hood exhaust ductwork shall be

insulated with two layers of flexible fire-rated duct wrap suitable for zero clearance to

combustibles.

F. Ductwork Insulation Accessories: Provide mechanical fasteners as recommended by the

insulation manufacturer.

G. Ductwork Insulation Compounds: Provide cement, adhesives, coatings, sealers, protective

finishes, and similar compounds as recommended by the insulation manufacturer for the

applications indicated.



2.05 MISCELLANEOUS MATERIALS:

A. General: Provide miscellaneous materials and products of the types and sizes indicated and

where not otherwise indicated, provide type and size required to comply with ductwork

system requirements including proper connection of ductwork and equipment.

B. Duct Sealant: Duct Sealant for above ground ductwork shall be a mastic suitable for the

pressure classification in accordance with SMACNA HVAC Duct Construction Standard".

All joints and seams shall be sealed.

C. Ductwork Support Materials: Provide hot-dipped galvanized steel rods, fasteners, anchors,

straps, angles and trim for support of ductwork. Wires shall not be acceptable. Ductwork

installed above a roof shall be supported on pre-fabricated, non-penetrating supports by Pipe

Pier or approved equal. Provide matching adjustable elevation kits.

D. Weatherproof Coating: Ductwork exposed outside shall be completely coated with

weatherproof mastic coating suitable for metal ductwork and thermal insulation. The coating

shall have a white color with service temperature range of -20° to 180°F, nonflammable when

wet, maximum flame spread rating of 15, smoke developed rating of zero. Alternatively,

insulate exterior ductwork with “Techna-Duc” pre-manufactured, interlocking, insulated

panel system by PTM Manufacturing or equal.

2.06 DUCT FABRICATION:

A. Shop fabricate ductwork in 4, 8, 10, or 12 foot lengths, unless otherwise indicated or required

to complete runs. Pre-assemble in the shop to the greatest extent possible, so as to minimize

field assembly of systems. Disassemble systems only to the extent necessary for shipping

and handling. Match-mark sections for re-assembly and coordinated installation.

B. Fabricate ductwork with joints, seams and reinforcements as required in the latest edition of

SMACNA HVAC Duct Construction Standards, 2” static pressure rating.

C. Fabricate duct fittings to match adjoining ducts and to comply with duct requirements as

applicable to fittings. Elbows shall be either the curved radius type or the square type with

turning vanes. Curved radius elbows shall have a centerline radius equal to 1.5 times the duct

width. Curved radius elbows with square throats shall not be acceptable.

D. Fabricate ductwork with accessories installed during fabrication to the greatest extent

possible. Where ducts are specified to lined, make allowances for the thickness of the liner.

Duct sizes shown on the drawings are clear, inside dimensions.

E. Kitchen hood exhaust ductwork and dishwasher exhaust ductwork and joints and seams shall

have liquid-tight continuous external weld per NFPA-96.

PART 3 - EXECUTION

3.01 INSTALLATION OF DUCTWORK:

A. General: Assemble and install ductwork in accordance with the latest edition of SMACNA

HVAC Duct Construction Standards and with recognized industry practices which will

achieve air tight noiseless systems, capable of performing each indicated service. Install each



run with a minimum of joints. Align ductwork accurately at connections, and with internal

and external surface smooth. Support ducts rigidly with suitable ties, braces, hangers and

anchors of the type which will hold ducts true-to-shape and prevent buckling. Hanger

locations shall be coordinated with the building structure and finish conditions.

B. Complete fabrication of work at the project as necessary to match shop fabricated work and

accommodate installation requirements.

C. Locate ductwork runs, except as otherwise indicated, vertically and horizontally and avoid

diagonal runs wherever possible. Locate runs as indicated by plans, diagrams, details and

notations or, if not otherwise indicated, run ductwork in the shortest route which does not

obstruct usable space or block access for servicing the building and its equipment.

Coordinate the layout with piping, lighting layouts and similar finished work and plumbing

risers. Duct layouts shown are diagrammatic and actual location of duct shall be field

verified and coordinated by the duct fabricator prior to beginning fabrication of duct systems.

D. Duct collars shall be provided where ducts pass through walls and partitions which extend

full height to the underside of the roof structure. Collars shall be fabricated from 22 gauge

galvanized steel sheet. Duct collars shall be provided on both sides of walls and partitions,

except collar shall be omitted on that side of the wall where registers and grilles are installed.

Flanges shall be installed tight against the wall. The space between the duct and the wall

shall be packed with mineral wool.

E. Coordinate duct installations with installation of accessories, dampers, equipment, controls

and other associated work of the ductwork system.

F. Route kitchen hood and dishwasher exhaust ductwork as directly as possible. Horizontal

ductwork must slope minimum ¼” per foot to drain toward the hoods. Do not create dips and

traps which can collect residue. Branch ducts bottoms must connect flush to main duct

bottoms. Provide NFPA-96 removable duct access doors every twelve feet and at changes in

direction. Access doors shall be sized to permit duct cleaning. Conform to NFPA-96 for

locations and installation details. At each exhaust fan, install an approved flexible duct

connection.

3.02 INSTALLATION OF INSULATION:

A. Duct Wrap: Wrap shall be wrapped around duct work with all circumferential joints butted

and longitudinal joints overlapped a minimum of 2”. Adhere insulation to duct with 4” strips

of fire resistant adhesive at 8” on centers. On circumferential joints, the 2” flange on the

facing shall be taped with minimum of 3” wide foil reinforced Kraft tape. On longitudinal

joints the overlap shall be taped with a minimum 3” wide foil reinforced Kraft tape. On ends

of insulation use 3” wide foil reinforced Kraft tape to fasten insulation ends to duct. For duct

widths 24” and greater, provide additional mechanical fasteners on 18” centers on the bottom

of the duct to prevent sagging. Insulate that part of the supply diffusers above the ceiling so

that there is no uncovered metal surface subject to condensation. Provide taped-on 12”x12”

squares of insulation over damper regulators located above ceilings.

B. Duct Liner: Liner shall be applied to the flat sheet with 100% coverage of fire resistant

adhesive. The duct liner shall be cut to assure snug corner closing joints. The black surface

of the liner shall face the air stream. On horizontal runs, tops of ducts over 12” in width and

sides over 16” in height shall be additionally secured with welded pins and speed clips or

gripnails spaced on a maximum of 16” pin centers. On vertical runs, welded pins and speed



clips or gripnails shall be spaced on maximum 16 inch pin centers on all widths over 12”.

Pins shall start within 2” of the leading edge of each section. Pins shall be cut close to the

speed clip. Clips shall be drawn flush only and not so as to compress the liner. Coat all

exposed edges and the leading edge of all cross joints with fire resistant sealant.

C. Duct Board: Board shall be applied using mechanical fasteners such as weld pins or stick

clips on 12” centers and not less than 3” from each edge or corner of the board. Apply

additional pins or clips where required to hold the insulation tightly against the duct surface.

Apply round vapor seal FRK pressure-sensitive patches to each fastener. Apply 5” wide

pressure-sensitive joint sealing tape to match jacket at all insulation edges and butt joints.

3.03 CLEANING AND PROTECTION:

A. Clean ductwork internally, unit-by-unit as it is installed, of dust and debris. Clean external

surfaces of foreign substances which might cause corrosive deterioration of the metal or,

where ductwork is to be painted, might interfere with painting or cause paint deterioration.

B. Temporary Closure: At ends of ducts which are not connected to equipment or air

distribution devices at the time of ductwork installation, provide temporary closure of

polyethylene film or other covering which will prevent the entrance of dust and debris.



215-15 23 2210 - 1 AIR DISTRIBUTION

SECTION 23 2210

AIR DISTRIBUTION

PART 1 - GENERAL





A. Titus is the Basis of Design manufacturer for grilles, registers and diffusers. Equivalent

equipment by Carnes, Krueger, Metalaire, Nailor and Price that meets performance,

capacity, space and other requirements of the design documents shall be acceptable.

B. Greenheck is the Basis of Design manufacturer for louvers. Equivalent equipment by Arrow,

Penn, Louvers And Dampers, Ruskin and United Enertech that meets performance, capacity,

space and other requirements of the design documents shall be acceptable.

C. Industry Standards: Comply with National Fire Protection Association Standard No. 90A, as

applicable to construction and installation of required devices.

1.03 SUBMITTALS:

A. Provide manufacturer's data, test reports, and product warranties for all items as applicable.

PART 2 - PRODUCTS

2.01 GRILLES, REGISTERS, AND DIFFUSERS:

A. Ceiling Diffusers: T-bar lay-in style diffusers shall be the full 2x2 face type with round neck,

three or four cones, and one-way, two-way, three-way, or four-way throw as indicated.

Diffusers shall be of stamped aluminum construction with white finish. Do not furnish

dampers.

B. Perforated Face Diffusers: Diffusers shall be the square type with removable face. Diffusers

shall have fully adjustable, 3-way or 4-way pattern control element and opposed blade

damper. Face finish shall be white and interior shall be flat black. The face shall fit into a

2'x2' T-bar ceiling grid.

C. Ceiling Return/Exhaust Grilles: Eggcrate grilles shall be all aluminum construction with ½”

square eggcrate louvers, 1” deep, with white finish. All 1'x2', 2'x2', and 2'x4' grilles in lay-in

ceilings shall be the lay-in type. All other sizes shall have a flanged frame.

D. Wall Return/Exhaust Grilles: Horizontal fixed-blade grilles shall be of extruded aluminum

construction with 45 degrees blades on 3/4 inch centers and white finish.

E. Heavy Duty Return/Exhaust Grilles: Heavy duty grilles shall have minimum 18 gauge steel

frames and 1/8 inch face bars at 40 degree deflection with white finish.


215-15 23 2210 - 2 AIR DISTRIBUTION

F. Filter Grilles: Shall be the same as return air registers and grilles with the addition of a

hinged face and rack for 1 inch thick filters.

2.02 LOUVERS:

A. Stationary Louvers: Louvers shall be the drainable-blade type of minimum 0.081" thick

extruded aluminum construction, 6" deep, with a full jamb section and channel frame. Blades

shall be set at 40 on 5 inch centers. Provide a removable aluminum insect screen on the

inside face of the louver. Finish shall be a factory applied primer suitable for field painting.

PART 3 - EXECUTION

3.01 INSTALLATION:

A. General: Install devices as detailed on the drawings and in accordance with manufacturer's

written instructions and in accordance with recognized industry practices.

B. Coordinate with other work, including ductwork and ductwork accessories and ceiling system

as necessary to interface installation of grilles and diffusers properly with other work.

C. Ceiling mounted devices to be installed in lay-in tile ceilings shall be compatible with

24"x24" or 24"x48" T-bar grid as applicable. Refer to Architectural Reflected Ceiling Plans

for exact locations of grilles, registers and diffusers. For flush mounted devices in T-bar

ceilings, special care shall be taken to install devices in the center of ceiling tiles. Sagging

will not be permitted. Provide rear sheet metal angle bracing.



215-14 23 2310 - 1 FANS

SECTION 23 2310

FANS

PART 1 - GENERAL





A. Greenheck is the Basis of Design manufacturer. Equivalent equipment manufactured by

Acme, Carnes, Cook, Penn, Stanley and Twin City that meets performance, capacity, space

and other requirements of the design documents shall be acceptable.

B. Industry Standards:

1. Provide fans which bear Air Movement and Control Association (AMCA) certified

performance rating seals.

2. Provide fan components which have been listed and labeled by Underwriters'

Laboratories.

3. Comply with applicable portion of National Electrical Manufacturer's Association

standards for motors.

1.03 SUBMITTALS:

A. Provide manufacturer's data, test reports, and product warranties on all items.

PART 2 - PRODUCTS

2.01 WALL MOUNTED PROPELLER EXHAUST FANS:

A. Provide wall mounted propeller type fans of the size and type as shown on the drawings. Fan

shall be direct driven or belt driven as indicated with continuous duty motors resiliently

mounted in a basket and guard meeting OSHA requirements. Propeller blades shall be

statically and dynamically balanced. Fan panels shall have a deep spun steel venturi and

welded corners. Provide ECM motor where available. Provide disconnect switch, motor side

fan guard, gravity wall shutter and mounting sleeve. Install fan behind stationary louver.

Provide speed controllers for direct drive fans.

2.02 ROOF MOUNTED CENTRIFUGAL EXHAUST FANS:

A. Provide roof mounted centrifugal fans of the size and type as scheduled on the drawings.

Fans shall be constructed with watertight housing capable of resisting 100 MPH winds and

shall be direct or belt-driven as indicated. Motor shall be in a compartment out of the air

stream. Housings shall be minimum 16 gauge spun aluminum. Fan wheel shall be of

aluminum, dynamically and statically balanced, non-overloading backward-curved blades

mounted on steel shaft. Equip with self-aligning heavy-duty bearings designed for end thrust

and lubricated for a minimum of 10 years usage at operating temperatures of -65 to 100

degrees F. Provide vibrationless lubricated ball bearing motor with integral thermal overload

protection and electrical disconnect switch under ventilator cap. Provide ECM motor where


215-14 23 2310 - 2 FANS

available. Provide aluminum bird screen, backdraft dampers, and matching roof curb.

2.03 IN-LINE CENTRIFUGAL FANS:

A. Provide an in-line centrifugal fan of the size and type as scheduled on the drawings. Fan

housing shall be heavy-gauge painted steel. Fans shall be direct or belt-driven as indicated

with aluminum centrifugal wheels with backwardly inclined, non-overloading blades. Inlets

shall be deep spun for nonturbulent entrance. Provide a 100% gasketed panel to permit

access to interior, and provide an internal terminal box mounted on the exterior. Provide

ECM motor where available. Provide disconnect switch, backdraft damper and hanger

brackets with vibration isolators.

2.04 FLY FANS:

A. Provide wall mounted fly fans over the interior of doors as shown on the drawings. Capacity

shall be as scheduled on the drawings. Cabinet shall be manufactured of one-piece molded

high density polycarbonate. Fan motor shall be continuous duty type with permanently

lubricated sealed ball bearings, totally enclosed, resilient mounting and thermal overload

protection. Provide adjustable intake louvers and adjustable air directional control vanes at

outlet nozzle. Provide beige finish and micro switch for automatic on/off control.

PART 3 - EXECUTION

3.01 INSTALLATION OF FANS:

A. General: Except as otherwise shown or specified, install fans in accordance with

manufacturer's written instructions and in accordance with National Electrical Code (NEC)

and recognized industry practices.

3.02 TESTING:

A. After installation of fans has been completed, test each unit to demonstrate proper operation

at performance requirements specified, including, but not limited to, proper rotation of

impeller. When possible, field correct malfunctioning units, then retest to demonstrate

compliance. Replace units which cannot be satisfactorily corrected.



KITCHEN HOOD VENTILATION SYSTEM 23 2510 - 1

SECTION 23 2510

KITCHEN HOOD VENTILATION SYSTEM

PART 1 - GENERAL




B. Refer to Food Service bid documents for related mechanical contractor work.


A. Captive-Air is the Basis of Design manufacturer. Equivalent equipment manufactured by

Accurex, Greasemaster and Greenheck shall be acceptable.


1. Hoods shall be ETL Listed and NSF Listed.

2. Provide components and assemblies which have been labeled by Underwriter's

Laboratories (UL).

3. Comply with the requirements of the National Fire Protection Association (NFPA) for

fabrication and installation. Specifically comply with NFPA 96, Standard for Ventilation

Control and Fire Protection of Commercial Cooking Operation and with NFPA 17A,

Wet Chemical Extinguishing System.

1.03 SUBMITTALS:

A. General: Provide manufacturer's data, certificates, test reports, and product warranties as

applicable for all items.

B. Shop Drawings: Submit dimensioned fabrication drawings for equipment including plans,

elevations, and sections, at minimum scale of 3/4" = 1' -0", showing materials and gauges

used. Submit dimensioned shop drawings for installation of hood fire protection system.

Submit wiring diagrams.

PART 2 - PRODUCTS

2.01 KITCHEN HOODS:

A. Type I Grease Filter Exhaust Hoods: The hood shall be, where exposed, stainless steel type

304 with #4 finish. All joints and seams shall have full liquid tight external welds. Visible

welds shall be ground smooth, and if stainless steel, be polished to a #4 finish. The hood

shall be the box type with vertical sides. The hood shall have integral exhaust duct collar(s).



Each hood shall have a filter housing of the same material as the hood complete with ETL

Listed stainless steel 2 inch thick panel type grease filters the full length. Filters shall be a

single-stage baffle design with minimum 90% grease extraction efficiency at 7 microns. The

filter housing shall be equipped with a pitched drip tray the full length of the hood with

grease cups for easy removal and daily cleaning. Hoods with ceiling makeup air plenum

shall have double wall insulated front. The hood shall be factory insulated for zero clearance

to combustibles.

2.02 HOOD ACCESSORIES:

A. Electrical: U.L. listed, four foot, two-lamp, recessed fluorescent light fixtures for grease use

shall be installed on six or seven foot centers and completely wired to a J-box on the top of

the hood. Exhaust Fan and Makeup Air Unit VFDs shall be provided with the hood and shall

be prewired. Provide an integral Kitchen Hood Demand Control Ventilation System to

automatically reduce exhaust and supply airflows based on demand. Fan speed shall be based

on sensing exhaust duct temperature. Provide variable speed drives for each fan. Provide an

integral heat sensor and associated controls to automatically turn on and off fan(s) based on

demand. Provide a wall mounted control panel with light switch and fan switch. EF and

MAU shall be controlled by the fan switch. All conduit shall be run in a concealed manner.

B. Duct Collars: The U.L. Labeled exhaust duct collars must be installed at the factory and it is

the responsibility of the contractor to verify the location of the duct collars to avoid

interference with the structure or other obstructions. The exhaust ducts and supply ducts shall

fit inside the duct collars of the hood and be seated, but not welded, into the holding clips

provided.

C. Makeup Air Plenum: Provide a matching ceiling mounted stainless steel makeup air plenum

with full length, full perimeter perforated face discharge panels, internal insulation and

supply air duct collars for up to 90% makeup air. Discharge velocity shall be in the range of

140-160 fpm. Provide an adjacent air conditioning plenum for conditioned air alongside the

makeup air plenum. See plans for details. The overall width of the plenum shall be

minimum 18 inches all around.

D. Panels: Furnish a stainless steel fascia panel around entire hood to extend the hood surface 6

inches above the finished ceiling. Panel finish shall match the hood finish.

E. Ductwork: The exhaust duct shall be sized to have a minimum velocity of 1500 FPM and

shall remain the same net area from the duct collar to the exhaust fan. It shall be constructed

of 16 gauge galvanized steel, welded liquid tight to comply with NFPA 96.

F. Fire Protection System:

1. Furnish a wet chemical system providing complete fire protection of duct, hood, and

cooking equipment surfaces. Installation shall be in compliance with chemical

manufacturer's U.L. Listing. All piping shall be run in a concealed manner. Piping

extending up through chase to duct and hood nozzles shall be fitted with sleeves forming

grease tight joints. Exposed piping of surface protection nozzles shall have stainless steel

sleeves with chrome plated elbows.

2. System shall be activated by fusible links connected to an automan release. Fit automan

release with an electric double-pole, double-throw microswitch for control circuit.

Makeup Air Unit is to be shut down when fire protection system is activated, leaving the

exhaust fan running.



3. Provide auxiliary factory installed relays to automatically trip shunt trip safety devices for

electrically operated appliances protected by the system. The devices shall be as

indicated on the electrical drawings. Also provide a relay to automatically signal the

building fire alarm system.

4. The chemical cylinders and controls shall be located in fire control cabinet built into the

end of the hood. Provide a remote manual pull station and interlock with system.

2.03 EXHAUST FANS:

A. The exhaust fan shall be U.L. listed for grease duct use and shall be the upblast type of spun

aluminum construction with belt-driven fan with backward-inclined or airfoil blades only,

containing a built-in grease trough and having a completely isolated motor compartment and

hinged frame. Provide ECM motor where available. No birdscreens or backdraft dampers

will be permitted per NFPA 96. Furnish an 18 gauge galvanized curb, minimum 18 inches

high, to raise fan discharge 40 inches minimum above the roof surface. Provide matching

roof curbs suitable for the roof slope. Fans shall be capable of resisting wind load specified

in 239110.

B. Provide a variable frequency drive to vary the speed of the fan in response to the Kitchen

Hood Demand Control Ventilation System furnished with the kitchen hood. Fan motor shall

be suitable for inverter duty. Provide external disconnect switch in weathertight enclosure,

dual drive grooves, one set of spare belts, stainless steel fasteners, stainless steel shaft, wiring

pigtail and non-stick wheel coating.

2.04 MAKEUP AIR UNITS:

A. Makeup Air Unit shall be the outdoor type with direct-fired natural gas heat and shall be ETL

listed. Unit shall be horizontal downblast type as shown on drawings. Unit shall be of

internal frame type construction with G90 galvanized steel frames and panels. Metal-to-

metal surfaces exposed to weather shall be sealed. All components shall be accessible

through removable or hinged doors. Unit casing shall be insulated with 1 inch fiberglass liner

in accordance with NFPA 90A and tested to meet UL 181 erosion requirements. Secure

insulation with waterproof adhesive and permanent mechanical fasteners.

B. Provide filter rack with pleated minimum MERV 7 filters. Do not exceed 550 PFM face

velocity. Provide weather hood with birdscreen mounted at the intake. Provide automatic

two-position damper. Provide downturn plenum with duct flanges. Provide matching roof

curbs suitable for the roof slope. Curbs shall extend minimum 8 inches above roof surface.

Units shall be capable of resisting wind loads specified in 239110.

C. Centrifugal fans shall be double width, double inlet. Fan and motor shall be mounted on a

common base with vibration isolators. Fan wheels shall be statically and dynamically

balanced. Ground and polished steel fan shafts shall be mounted in permanently lubricated

ball bearings or ball bearing pillow blocks. Bearings shall be selected for minimum L10 life

in excess of 100,000 hours at maximum cataloged speeds. Motors shall comply with EPAct

standards for ODP and TE enclosures. Motors shall be permanently lubricated, heavy-duty

type, matched to the fan load. Drives shall be sized for a minimum of 150% driven HP. 10

HP and less shall have an adjustable drive pulley. Provide built-in variable frequency drive

and inverter duty fan motor for VAV operation.

D. Direct-fired natural gas system shall have a draw-through design and field adjustable burner



baffles. Gas trains up to 400,000 Btu/hr shall include a direct spark ignition system. Gas

trains greater than 400,000 Btu/hr shall include a pilot ignition system with digital coded fault

indicator. Dual safety valves shall be industrial duty and use 120VAC control signals.

Temperature control shall incorporate an electronic modulation control system. On a call for

heat from a unit mounted ductstat, controls shall modulate the burner between 50% and

100%, as required. EMCS shall be capable of remotely changing heating set point of

ductstat. See specification section 238310 for further information. All controls and sensors

required for a complete, operable system shall be furnished and installed under section

238310.

E. All internal electrical components shall be prewired for single point power connection.

Control center shall include a motor starter, control circuit fusing, control transformer for 120

VAC circuit, integral door interlocking disconnect switch and terminal strip. Provide

adjustable overload protection and single phase protection.

PART 3 - EXECUTION

3.01 INSTALLATION:

A. Installer shall examine roughed-in mechanical and electrical services, and installation of

floors, walls, columns, ceilings, and other conditions under which food service equipment

work is to be installed; verify dimensions of services and substrates before fabricating work.

Notify Contractor of unsatisfactory conditions for proper installation of equipment. Do not

proceed with fabrication and installation until unsatisfactory dimensions and conditions have

been corrected in a manner satisfactory to the installer. Control wiring and devices for

complete, operable systems shall be provided and installed under the Mechanical

specifications. Wiring shall be installed in conduit provided and installed under the Electrical

specifications.

B. Exhaust Fan and Makeup Air Unit shall be furnished and installed as a packaged assembly.

3.02 TESTING:

A. Test each item of operational equipment to demonstrate that it is operating properly, and that

controls and safety devices are functioning. Repair or replace equipment which is found to

be defective in its operation including units which are below capacity or operating with

excessive noise or vibration. At the time of installation, an authorized dealer of the chemical

system shall complete and certify the system.



215-14 23 3110 - 1 ELECTRIC HEATERS

SECTION 23 3110

ELECTRIC HEATERS

PART 1 - GENERAL





A. QMark is the Basis of Design manufacturer. Equivalent equipment by Berko, Chromalox,

Markel, Reddi, Raywall and Warren that meets performance, capacity, space and other

requirements of the design documents shall be acceptable.

B. Industry Standards: Each unit shall be U.L. listed.

PART 2 - PRODUCTS

2.01 MATERIALS AND EQUIPMENT:

A. Wall Heaters: Wall heaters shall be the surface mounted fan-forced type. Provide accessory

mounting kits as applicable. The heating section shall consist of a steel chassis with heating

element, fan and motor, fan control, thermostat, and thermal cutout. Heater section shall be

completely prewired. The element shall be the fin-tube type enclosed in a steel sheath. The

fan motor shall be impedance protected, permanently lubricated type totally enclosed motor.

Fan control shall be bi-metallic, snap-action type delay switch. Thermal cutout shall also be

bi-metallic, snap-action type. The front cover shall be heavy gauge steel with a baked enamel

finish. Heaters shall have built-in thermostat and disconnect switch.

B. Cabinet Heaters: Cabinet heaters shall be blow-thru type with front discharge and front inlet.

Cabinet shall be heavy gauge steel with baked enamel finish, configured for fully recessed

ceiling mounting. Provide mounting flange. Motor and fans shall be direct drive connected

and mounted as a single assembly on a rigid frame. Motors shall be 2-speed, resiliently

mounted with automatic reset motor overload protection. Heating elements shall be fin-tube

type with steel sheath. Provide fan-delay switch, built-in circuit breakers, and built-in low

voltage transformer. Provide integral thermostat.

C. Unit Heaters: Unit heaters shall be the propeller fan, horizontal discharge type with

adjustable louvers. Heating elements shall be the fin-tube type with steel sheath. Cabinet

shall be heavy gauge steel with baked enamel finish. Provide bracket for wall mounting.

Motor and fans shall be direct drive. Motors shall be the permanently lubricated, resiliently

mounted, totally enclosed type with a thermal overload protection with automatic reset.

Provide integral thermostat. Provide built-in disconnect switch.

PART 3 - EXECUTION

3.01 INSTALLATION:

A. Install heaters in accordance with the manufacturer's instructions.


215-14 23 3110 - 2 ELECTRIC HEATERS



215-14 23 4320 - 1 AIR TREATMENT SYSTEMS

SECTION 23 4320

AIR TREATMENT SYSTEMS

PART 1 - GENERAL




1.02 QUALITY ASSURANCE

A. Global Plasma Solutions is the Basis of Design manufacturer. Equivalent systems

manufactured by Aerisa, AtmosAir, BioClimatic or Plasma Air that meets performance,


B. Equipment shall be warranted by the manufacturer against defects in material and

workmanship for a period of twelve months after shipment or eighteen months from owner

acceptance, whichever occurs first. Labor to replace equipment under warranty shall be

provided by the owner or installing contractor

1.03 SUBMITTALS

A. Provide manufacturer's data, test reports, and product warranties. The following information

shall be included in the submittal:

1. Schedule of air treatment systems indicating unit designation and number of each type

required for each unit/application.

2. Data sheet for each type of air treatment systems and accessories furnished indicating

construction, sizes, and mounting details.

3. Performance data for each type of air treatment system furnished.

4. Indoor Air Quality calculations using the formulas within ASHRAE Standard 62.1 to

validate acceptable indoor air quality at the quantity of outside air scheduled.

5. Product drawings detailing all physical, electrical and control requirements.

PART 2 - PRODUCTS

2.01 MATERIALS AND EQUIPMENT:

A. General: Air treatment systems shall be the needle-point, bi-polar ionization type. Provide

an air treatment system for every HVAC unit scheduled on the plans unless noted otherwise

on the plans.

B. The Bi-Polar Ionization system shall be capable of:

1. Effectively killing microorganisms downstream of the bi-polar ionization equipment

(mold, bacteria, virus, etc.).

2. Controlling gas phase contaminants generated from human occupants, building structure

and furnishings.

3. Capable of reducing static space charges.

4. Increasing the interior ion levels, both positive and negative, to a minimum of 1000

ions/cm³



C. The air treatment system shall be designed such that it may fit into any scheduled mounting

configuration including ductless mini-split units. If the ionization device is to be mounted in

the ductless mini-split units, the air treatment system shall be powered from the ductless

mini-split control board without having to require revised fusing in ductless mini-split device.

D. The air treatment system shall operate in a manner such that equal amounts of positive and

negative ions are produced. Uni-polar ion devices shall not be acceptable. Air exchange

rates may vary through the full operating range of a constant volume or VAV system. The

quantity of air exchange shall not be increased due to requirements of the air treatment

system. The air treatment system shall not have a maximum velocity profile.

E. Air treatment systems shall not require preheat protection when the relative humidity of the

entering air exceeds 85%. Relative humidity from 0 - 100% shall not cause damage,

deterioration or dangerous conditions within the air treatment system. Air treatment systems

shall be capable of wash down duty.

F. Each air treatment system with bi-polar ionization output shall include the required number of

electrodes and power generators sized to the air handling equipment capacity per the

manufacturer’s recommendations.

G. Electrodes shall be energized when the main unit disconnect is turned on and the fan is

operating. Internal circuitry shall be provided to sense airflow across the electrode output.

H. HVAC Equipment: Mount the air treatment system(s) at the supply fan inlet and wire it to

equipment control power (24VAC) as instructed by the air treatment manufacturer’s

instructions. Each unit shall be designed with a stainless steel casing; integral illuminated

on/off switch, two 2.5mm DC power jacks, high voltage output indication light and dry

contacts to prove ion output is operating properly. The dry contacts shall close to prove the

air treatment system is working properly and may be daisy chained in series such that only

one dry contact per RAC is required to interface to the EMCS.

I. Ionization Requirements: Air treatment systems with bi-polar ionization output shall be

capable of controlling gas phase contaminants and shall be provided for all equipment listed

above. The air treatment system shall consist of bi-polar plasma generator and power supply.

The air treatment system shall be installed where indicated on the plans or specified to be

installed. The device shall be capable of being powered by DC power or 24VAC or 94VAC

to 264VAC without the use of an external transformer. Air treatment systems requiring

isolation transformers shall not be acceptable. The ionization output shall be controlled such

that an equal number of positive and negative ions are produced. Imbalanced levels shall not

be acceptable. Ionization output from each electrode shall be a minimum of 5 million

ions/sec when tested at 2”from the ionization generator.

J. Ozone Generation: The operation of the electrodes or bi-polar ionization units shall conform

to ASHRAE Standard 62.1 with respect to ozone generation. There shall be no ozone

generation during any operating condition, with or without airflow.

K. Electrical Requirements: Wiring, conduit and junction boxes shall be installed within

housing plenums in accordance with NEC NFPA 70. Plasma generator shall accept an

electrical service of 24 VAC or 100 VAC to 240VAC, 1 phase, 50/60 Hz. The contractor

shall coordinate electrical requirements with air purification manufacturer during submittals.



L. Control Requirements:

1. All air treatment systems shall have internal short circuit protection, overload protection,

and automatic fault reset.

2. Integral airflow sensing shall modulate the plasma output as the airflow varies or stops.

3. Follow all manufacturer IOM instructions during installation.

4. All air treatment systems shall have a means to interface with the EMCS. Either a 0-

10VDC output or dry contacts shall be acceptable to prove operation.

PART 3 - EXECUTION

3.01 GENERAL:

A. The Contractor shall be responsible for maintaining all air treatment systems until the Owner

accepts the building.

3.02 INSTALLATION:

A. All equipment shall be assembled and installed in a workman like manner to the

satisfaction of the owner, architect, and engineer.

B. Any material damaged by handling, the mechanical contractor, at no cost to the owner, shall

replace water or moisture.

C. All equipment shall be protected from dust and damage on a daily basis throughout

construction.

3.03 TESTING

A. Upon completion of installation of equipment and system, start-up and operate system to

demonstrate compliance with design requirements.

B. A qualified representative from the manufacturer shall inspect the installation of the air

treatment system to ensure installation in accordance with manufacturer's recommendation.

C. Perform a test of ion production in all HVAC systems equipped with air treatment devices.

Conduct tests in spaces served by HVAC systems equipped with air treatment devices. Test

must show ion levels with air treatment systems ‘off’ and ‘on.’ Submit a typed report prior to

system commissioning.

3.04 TRAINING

A. A manufacturer's authorized representative shall provide training of Owner's personnel in the

proper operation and maintenance of all equipment.



215-14 23 5310 - 1 ROOFTOP AIR CONDITIONERS

SECTION 23 5310

ROOFTOP AIR CONDITIONERS

PART 1 - GENERAL





A. Manufacturers:

1. Carrier is the Basis of Design manufacturer for Rooftop Air Conditioners. Equivalent

equipment manufactured by Trane or York that meets performance, capacity, space and

other requirements of the design documents shall be acceptable.


1. Comply with applicable provisions of NFPA Standards 90A pertaining to construction

and installation of air conditioning units.

2. Provide units which shall comply with applicable portions of UL 465, and with electrical

components that bear UL labels.

3. Units shall be rated and certified in accordance with ARI Standard 210 and 270 as

applicable.

4. Comply with installation requirements of ANSI/ASHRAE 15; Safety Code for

Mechanical Refrigeration.

5. Extended Warranty: In addition to the standard one-year warranty on all components,

compressors shall bear an additional four-year manufacturer's warranty against material

and design defects.

1.03 SUBMITTALS:


PART 2 - PRODUCTS

2.01 ROOFTOP AIR CONDITIONERS:

A. General: Units shall be one-piece construction, UL certified, complete with refrigerant and

ready to operate as year-round air conditioning systems. Units shall be complete with

compressors, coils, gas heat, fans, casings, filters and controls. Provide adaptive

dehumidification system capable of operating in normal cooling, subcooling and hot gas

reheat modes.

B. Compressor(s) shall be the scroll type and shall be provided with crankcase heaters and

constant pressure lubrication. Compressor(s) shall be isolated from the frame by resilient

mounts. Provide low ambient controls. Factory charge with HFC refrigerant. Systems

scheduled on the plans for Staged Air Volume shall be equipped with minimum 2-stage

control.



C. Indoor and outdoor coils shall be constructed of copper tubes with aluminum fins

mechanically bonded to the tubes. The coils shall be factory pressure and leak tested at not

less than 425 psig. Condenser coils shall receive a factory-applied corrosion protection

coating.

D. Fans shall be balanced statically and dynamically, and fan bearings shall be permanently

lubricated types. Fan motors shall have built-in overload protection. Outdoor fans shall be

the direct-drive propeller type. Indoor fans shall be the centrifugal belt-driven type mounted

on vibration isolators. Systems scheduled on the plans for Staged Air Volume shall be

equipped with variable frequency drives and inverter duty fan motors.

E. Outdoor unit casings shall be constructed of galvanized sheet steel and of modular

construction, rigidly braced and reinforced with steel angle framework and of sufficient

strength to prevent bending during rigging. Treat surface and finish corrosive-resistant steel

panels with manufacturer's standard baked seal against weather and air leakage with gaskets.

Thermally insulate the interior casing in contact with the airstream with 1 inch glass fiber.

Design top panels for proper drainage. Fasten top panels to be easily individually removable

for complete access to components from the top of the unit and seal the top against air and

water leakage with gasketing. Provide drains on both sides of the condenser section and

provide a utility connection opening within unit curb connections. Connectors occurring in

wet areas such as the outdoor fan section shall be factory or field weatherproofed. Provide

units with condenser coil guards and hinged access doors. Provide motorized 2-position

outdoor air damper. Provide matching roof curbs suitable for the roof slope. Curbs shall

extend minimum 8 inches above roof surface. Units shall be capable of resisting wind load

specified in 239110.

F. Air filters shall be located inside the air conditioning unit casing and shall be pleated

minimum MERV 7.

G. Provide units with controls equipped with time-delay devices with the capability to prevent

short cycling of compressor(s) and to ensure staged starting of dual compressor units.

Provide units with 24 volt internal control wiring with plug-in type relays for reliability and

ease of maintenance. Each unit shall have high pressure stats, low pressure stats, loss of

charge protection, indoor coil freeze stats and current and temperature-sensitive overload

devices.

H. Gas-fired heaters shall be the induced draft combustion type for use with natural gas. Heat

exchanger and burners shall be aluminized steel. Gas burner controls shall include automatic

safety pilot, redundant automatic gas valves, manual gas cock, and pressure regulator.

Ignition shall be direct spark type with intermittent pilot with 100% shutoff. Induced draft

blower shall provide pre-purge and shall be provided with a proving switch to prevent burner

operation if venter is not in operation. Provide fan switch and limit control to delay the fan

until heat is available and to continue fan operation until heat is dispersed. Limit switch shall

shut the burners down in case of failure of operating controls.

I. HVAC drain piping shall be supported on non-penetrating neoprene roof pedestal pipe

supports with clamps on maximum five foot spacing. Wood blocking is not allowed.

J. See Section 23 8310 for control information. All controls shall be full DDC under section 23

8310.

PART 3 - EXECUTION



3.01 INSPECTION:

A. Installer must examine areas and conditions under which air conditioning units are to be

installed and notify the Owner in writing of conditions detrimental to the proper completion

of the work. Do not proceed with the work until the unsatisfactory conditions have been

corrected in a manner acceptable to Installer.

3.02 INSTALLATION OF AIR CONDITIONERS:

A. Install units where shown, in accordance with equipment manufacturer's written instructions

and recognized industry practices, to insure that units comply with requirements and serve

intended purposes.

B. Coordinate with other work, including structural, ductwork, piping and electrical work, as

necessary to interface installation of units with other work. Control wiring and devices for

complete, operable systems shall be provided and installed under the Mechanical


specifications.

3.03 TESTING:

A. Upon completion of installation of air conditioning units and connection to the completed air

distribution system, start-up and test equipment in accordance with manufacturer's

recommendations. Operate units to demonstrate capability and compliance with

requirements. Where possible, field-correct malfunctioning units, then retest to demonstrate

compliance.



215-14 23 6110 - 1 DUCTLESS HEAT PUMPS

SECTION 23 6110

DUCTLESS HEAT PUMPS

PART 1 - GENERAL





A. Manufacturers:

1. Mitsubishi is the Basis manufacturer for Ductless Heat Pumps. Equivalent equipment

manufactured by Daikin or Johnson that meets performance, capacity, space and other

requirements of the design documents shall be acceptable.


1. Comply with applicable provisions of NFPA Standard 90A pertaining to construction and

installation of air conditioning units.

2. Provide units which shall comply with applicable portions of UL 465, and with electrical

components that bear UL labels.

3. Units shall be rated and certified in accordance with ARI Standard 240, 270 or 380 as

applicable.



C. Extended Warranty: In addition to the standard one-year warranty on all components,

compressors shall bear an additional four-year manufacturer's warranty against material and

design defects.

1.03 SUBMITTALS:


PART 2 - PRODUCTS

2.01 DUCTLESS HEAT PUMPS:

A. General: Indoor and outdoor units shall be a matched pair of one manufacturer rated for

operation together by the manufacturer's published literature. The system shall be furnished

complete with packaged indoor unit, packaged outdoor unit, refrigerant lines and all

necessary controls and accessories for a complete, operational system.

B. Outdoor units shall consist of hermetic scroll compressors(s) with crankcase heaters,

automatically reversible oil pump, internal and external motor protection, outdoor fan(s) of

the propeller type with direct drive factory lubricated motor(s) and outdoor coil all housed in

a heavy duty steel casing with baked enamel factory-applied finish. Indoor units (air

handlers) shall be the horizontal wall mounted type complete with statically and dynamically

balanced centrifugal direct drive fan, indoor coil, electric heater, standard filters, expansion



valves and relays, and controls all housed in a factory-fabricated and insulated steel housing

with baked enamel finish. Provide single point power connection.

C. Unit controls and protective devices shall include high pressure stat, loss of charge pressure

stat, suction line accumulator and pressure relief device. Motor compressors shall have a

thermal and current sensitive overload device. The outdoor unit shall have short cycle

protection and safety lock-out compressor protection. Automatic defrost controls shall be

provided. Factory charge with HFC refrigerant.

D. Refrigerant piping shall be hard drawn seamless copper tubing suitable for a working

pressure of 300 psig. Fittings shall be wrought copper or brass suitable for use with high

temperature solder and designed for 300 psig working pressure. Suction line insulation shall

be closed cell foam plastic insulation.

E. Thermostats shall be the manufacturer's digital wall mounted thermostat. See section 238310

for more information.

PART 3 - EXECUTION

3.01 INSPECTION:

A. Installer must examine areas and conditions under which heat pumps are to be installed and

notify the Contractor in writing of conditions detrimental to the proper completion of the

work. Do not proceed with the work until the unsatisfactory conditions have been corrected

in a manner acceptable to Installer.

3.02 INSTALLATION OF HEAT PUMPS:

A. Install heat pumps where shown, in accordance with equipment manufacturer's written

instructions and recognized industry practices, to insure that units comply with requirements

and serve intended purposes.

B. Coordinate with other work, including structural, ductwork, piping and electrical work, as

necessary to interface installation of heat pumps with other work. Control wiring and devices

for complete, operable systems shall be provided and installed under the Mechanical


specifications.

C. Piping: Refrigerant line joints shall be brazed with silver solder. Lines shall be sized,

installed and insulated in accordance with equipment manufacturer's instructions. Suction

line insulation joints shall be sealed with an adhesive recommended by the insulation

manufacturer. All refrigerant line insulation exposed to weather shall be protected with a

weatherproof coating supplied by the insulation manufacturer. Suction and hot gas line sets

shall be secured together with plastic ties. Tape or coated wire shall not be allowed. Hot gas

lines located within walls shall also be insulated for vibration isolation. Bare copper piping

shall not be allowed to come in contact with masonry, mortar, or steel items. Condensate

lines shall be installed with traps and vents in each line. Pipe supports shall be on maximum 6

foot centers on horizontal lines. Open ends of lines and connection fittings of equipment shall

be properly capped or plugged during construction to protect from damage and entry of dirt

or foreign material.

3.03 TESTING:



A. Upon completion of installation of heat pumps and connection to the completed air

distribution system, start-up and test equipment in accordance with the manufacturer's

recommendations. Operate units to demonstrate capability and compliance with

requirements. Where possible, field-correct malfunctioning units, then retest to demonstrate

compliance.



215-14 23 6310 - 1 VRF HEAT PUMPS

SECTION 23 6310

VRF HEAT PUMPS

PART 1 – GENERAL

1.01 SYSTEM DESCRIPTION:

A. The Basis of Design is City Multi VRF Heat Recovery Heat Pumps by Mitsubishi.

Mechanical plans, electrical plans and specifications have been prepared on this basis.

Alternate manufacturers allowed to bid are Daikin and Johnson Controls. Alternate

manufacturers must meet the scheduled equipment performance and specification

requirements. Variations in equipment dimensions, refrigerant piping design, solenoid valve

locations, controls, power requirements, etc. must be furnished and installed at no additional

cost to the Owner. All such variations must be clearly noted in the VRF submittal including a

document confirming prior coordination with the General Contractor and Electrical

Contractor. The Owner-Preferred manufacturer is Mitsubishi.

B. The R2-Series system shall consist of a PURY outdoor unit, BC (Branch Circuit) Controller,

multiple indoor units, and M-NET DDC (Direct Digital Controls). Each indoor unit or group

of indoor units shall be capable of operating in any mode independently of other indoor units

or groups. System shall be capable of changing mode (cooling to heating, heating to cooling)

with no interruption to system operation. The sum of connected capacity of all indoor air

handlers shall range from 50% to 150% of outdoor rated capacity.


A. The units shall be listed by Electrical Testing Laboratories (ETL) and bear the ETL label.

B. All wiring shall be in accordance with the National Electrical Code (N.E.C.).

C. The units shall be manufactured in a facility registered to ISO 9001 and ISO14001 which is a

set of standards applying to environmental protection set by the International Standard

Organization (ISO).

D. All units must meet or exceed the 2010 Federal minimum efficiency requirements and the

proposed ASHRAE 90.1 efficiency requirements for VRF systems. Efficiency shall be

published in accordance with the DOE alternative test procedure, which is based on the Air-

Conditioning, Heating, and Refrigeration Institute (AHRI) Standards 340/360, 1230 and ISO

Standard 13256-1.

1.03 DELIVERY, STORAGE AND HANDLING:

A. Unit shall be stored and handled according to the manufacturer’s recommendation.

1.04 CONTROLS:

A. The control system shall consist of a low voltage communication network of unitary built-in

controllers with on-board communications and a web-based operator interface. A web

controller with a network interface card shall gather data from this system and generate web

pages accessible through a conventional web browser on each PC connected to the network.


215-14 23 6310 - 2 VRF HEAT PUMPS

Operators shall be able to perform all normal operator functions through the web browser

interface.

B. System controls and control components shall be installed in accordance with the

manufacturer’s written installation instructions.

C. Furnish energy conservation features such as optimal start, night setback, request-based logic,

and demand level adjustment of overall system capacity as specified in the sequence.

D. System shall provide direct and reverse-acting on and off algorithms based on an input

condition or group conditions to cycle a binary output or multiple binary outputs.

E. Provide capability for future system expansion to include monitoring and use of occupant

card access, lighting control and general equipment control.

F. System shall be capable of email generation for remote alarm annunciation.

G. Control system start-up shall be a required service to be completed by the manufacturer or a

duly authorized, competent representative that has been factory trained in Mitsubishi controls

system configuration and operation. The representative shall provide proof of certification

for Mitsubishi CMCN Essentials Training and/or CMCN Hands-On Training indicating

successful completion of no more than two (2) years prior to system installation. This

certification shall be included as part of the equipment and/or controls submittals. This

service shall be equipment and system count dependent and shall be a minimum of one (1)

eight (8) hour period to be completed during normal working hours.

1.05 WARRANTY:

A. The units shall be covered by the manufacturer’s limited warranty for a period of one (1) year

from date of installation.

B. The systems shall be designed by a certified CITY MULTI Diamond Designer, installed by a

contractor that has successfully completed the Mitsubishi Electric three day service course,

and verified with a completed commissioning report submitted to and approved by the

Mitsubishi Electric Service Department. Then the units shall be covered by an extended

manufacturer’s limited warranty for a period of five (5) years from date of installation.

C. In addition the compressor shall have a manufacturer’s limited warranty for a period of seven

(7) years from date of installation. This warranty shall not include labor.

D. If, during this period, any part should fail to function properly due to defects in workmanship

or material, it shall be replaced or repaired at the discretion of the manufacturer.

E. All manufacturer technical and service manuals must be readily available for download by

any local contractor should emergency service be required. Registering and sign-in

requirements which may delay emergency service reference are not allowed.

F. The CITY MULTI VRF system shall be installed by a contractor with extensive CITY

MULTI install and service training. The mandatory contractor service and install training

should be performed by the manufacturer.


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PART 2 – PRODUCTS

2.1 R2-SERIES OUTDOOR UNIT:

A. General: The R2-Series PURY outdoor unit shall be used specifically with CITY MULTI

VRF components. The PURY outdoor units shall be equipped with multiple circuit boards

that interface to the M-NET controls system and shall perform all functions necessary for

operation. Each outdoor unit module shall be completely factory assembled, piped and wired

and run tested at the factory.

B. All units requiring a factory supplied twinning kits shall be piped together in the field,

without the need for equalizing line(s). If an alternate manufacturer is selected, any

additional material, cost, and labor to install additional lines shall be incurred by the

contractor.

C. Outdoor unit shall have a sound rating no higher than 60 dB (A) individually or 64 dB (A)

twinned. If an alternate manufacturer is selected, any additional material, cost, and labor to

meet published sound levels shall be incurred by the contractor.

D. Both refrigerant lines from the outdoor unit to the BC (Branch Circuit) Controller (Single or

Main) shall be insulated in accordance with the installation manual.

E. There shall be no more than 3 branch circuit controllers connected to any one outdoor unit.

F. Outdoor unit shall be able to connect to up to 50 indoor units depending upon model.

G. The outdoor unit shall have an accumulator with refrigerant level sensors and controls.

H. The outdoor unit shall have a high pressure safety switch, over-current protection, crankcase

heater and DC bus protection.

I. The outdoor unit shall have the ability to operate with a maximum height difference of 164

feet and have total refrigerant tubing length of 1804-2625 feet. The greatest length is not to

exceed 541 feet between outdoor unit and the indoor units without the need for line size

changes or traps.

J. The outdoor unit shall be capable of operating in heating mode down to -4F ambient

temperatures or cooling mode down to 23F ambient temperatures, without additional low

ambient controls. If an alternate manufacturer is selected, any additional material, cost, and

labor to meet low ambient operating condition and performance shall be incurred by the

contractor.

K. The outdoor unit shall have a high efficiency oil separator plus additional logic controls to

ensure adequate oil volume in the compressor is maintained.

L. Unit must defrost all circuits simultaneously in order to resume full heating more quickly.

Partial defrost which may extend “no or reduced heating” periods shall not be allowed.

M. Unit Cabinet: The casing(s) shall be fabricated of galvanized steel, bonderized and finished.

Units cabinets shall be able to withstand 960 hours per ASTM B117 criteria for seacoast

protected models (–BS models)


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N. Fan:

1. Each outdoor unit module shall be furnished with one direct drive, variable speed

propeller type fan. The fan shall be factory set for operation under 0 in. WG external

static pressure, but capable of normal operation under a maximum of 0.24 in. WG

external static pressure via dipswitch.

2. All fan motors shall have inherent protection, have permanently lubricated bearings, and

be completely variable speed.

3. All fan motors shall be mounted for quiet operation.

4. All fans shall be provided with a raised guard to prevent contact with moving parts.

5. The outdoor unit shall have vertical discharge airflow.

O. Refrigerant:

1. R410A refrigerant shall be required for PURY-P-T/Y(S)KMU-A outdoor unit systems.

2. Polyolester (POE) oil shall be required. Prior to bidding, manufacturers using alternate

oil types shall submit material safety data sheets (MSDS) and comparison of hygroscopic

properties for alternate oil with list of local suppliers stocking alternate oil for approval at

least two weeks prior to bidding.

P. Coil:

1. The outdoor coil shall be of nonferrous construction with lanced or corrugated plate fins

on copper tubing.

2. The coil fins shall have a factory applied corrosion resistant blue-fin finish.

3. The coil shall be protected with an integral metal guard.

4. Refrigerant flow from the outdoor unit shall be controlled by means of an inverter driven

compressor.

5. The outdoor coil shall include 4 circuits with two position valves for each circuit, except

for the last stage.

Q. Compressor:

1. Each outdoor unit module shall be equipped with one inverter driven scroll hermetic

compressor. Non inverter-driven compressors, which cause inrush current (demand

charges) and require larger wire sizing, shall not be allowed.

2. A crankcase heater(s) shall be factory mounted on the compressor(s).

3. The outdoor unit compressor shall have an inverter to modulate capacity. The capacity

shall be completely variable with a turndown of 19%-5% of rated capacity, depending

upon unit size.

4. The compressor will be equipped with an internal thermal overload.

5. The compressor shall be mounted to avoid the transmission of vibration.

6. Field-installed oil equalization lines between modules are not allowed. Prior to bidding,

manufacturers requiring equalization must submit oil line sizing calculations specific to

each system and module placement for this project.

R. Controls: The outdoor unit shall have the capability of up to 8 levels of demand control for

each refrigerant system.

S. Electrical:

1. The outdoor unit electrical power shall be 460 volts, 3-phase, 60 hertz.

2. The outdoor unit shall be capable of satisfactory operation within voltage limits of 414-

506 volts.

3. The outdoor unit shall be controlled by integral microprocessors.


215-14 23 6310 - 5 VRF HEAT PUMPS

4. The control circuit between the indoor units, BC Controller and the outdoor unit shall be

24VDC completed using a 2-conductor, twisted pair shielded cable to provide total

integration of the system.

2.2 BRANCH CIRCUIT (BC) CONTROLLERS FOR R2-SERIES SYSTEMS:

A. General: The BC (Branch Circuit) Controllers shall include multiple branches to allow

simultaneous heating and cooling by allowing either hot gas refrigerant to flow to indoor

unit(s) for heating or subcooled liquid refrigerant to flow to indoor unit(s) for cooling.

Refrigerant used for cooling must always be subcooled for optimal indoor unit LEV

performance; alternate branch devices with no subcooling risk bubbles in liquid supplied to

LEV and are not allowed. The BC (Branch Circuit) Controllers shall be specifically used

with R410A R2-Series systems. These units shall be equipped with a circuit board that

interfaces to the M-NET controls system and shall perform all functions necessary for

operation. The unit shall have a galvanized steel finish. The BC Controller shall be

completely factory assembled, piped and wired. Each unit shall be run tested at the factory.

This unit shall be mounted indoors, with access and service clearance provided for each

controller. The sum of connected capacity of all indoor air handlers shall range from 50% to

150% of rated capacity.

B. BC Unit Cabinet: The casing shall be fabricated of galvanized steel. Each cabinet shall

house a liquid-gas separator and multiple refrigeration control valves. The unit shall house

two tube-in-tube heat exchangers.

C. Refrigerant: R410A refrigerant shall be required.

D. Refrigerant Valves: The unit shall be furnished with multiple branch circuits which can

individually accommodate up to 54,000 BTUH and up to three indoor units. Branches may

be twinned to allow more than 54,000 BTUH. Each branch shall have multiple two-position

valves to control refrigerant flow. Service shut-off valves shall be field-provided/installed for

each branch to allow service to any indoor unit without field interruption to overall system

operation. Linear electronic expansion valves shall be used to control the variable refrigerant

flow.

E. Future Use: Each VRF system shall include at least one (1) unused branches or branch

devices for future use. Branches shall be fully installed & wired in central location with

capped service shutoff valve & service port.

F. Integral Drain Pan: An Integral drain pan and drain shall be provided.

G. Electrical: The unit electrical power shall be 208/230 volts, 1 phase, 60 Hertz. The unit shall

be capable of satisfactory operation within voltage limits of 187-228 (208V/60Hz) or 207-

253 (230/60Hz). The BC Controller shall be controlled by integral microprocessors. The

control circuit between the indoor units and outdoor units shall be 24VDC completed using a

2-conductor, twisted pair shielded cable to provide total integration of the system.

2.3 PKFY (WALL MOUNTED) INDOOR UNIT:

A. General: The PKFY shall be a wall-mounted indoor unit section and shall have a modulating

linear expansion device and a flat front. The PKFY shall be used with the R2-Series outdoor


215-14 23 6310 - 6 VRF HEAT PUMPS

unit and BC Controller. The PKFY shall support individual control using M-NET DDC

controllers.

B. Indoor Unit: The indoor unit shall be factory assembled, wired and run tested. Contained

within the unit shall be all factory wiring, piping, electronic modulating linear expansion

device, control circuit board and fan motor. The unit shall have a self-diagnostic function, 3-

minute time delay mechanism, an auto restart function, and a test run switch. Indoor unit and

refrigerant pipes shall be charged with dehydrated air before shipment from the factory.

C. Unit Cabinet: All casings, regardless of model size, shall have the same white finish. Multi

directional drain and refrigerant piping offering four (4) directions for refrigerant piping and

two (2) directions for draining shall be standard. There shall be a separate back plate which

secures the unit firmly to the wall.

D. Fan: The indoor fan shall be an assembly with one or two line-flow fan(s) direct driven by a

single motor. The indoor fan shall be statically and dynamically balanced to run on a motor

with permanently lubricated bearings. A manual adjustable guide vane shall be provided

with the ability to change the airflow from side to side (left to right). A motorized air sweep

louver shall provide an automatic change in airflow by directing the air up and down to

provide uniform air distribution.

E. Filter: Return air shall be filtered by means of an easily removable, washable filter.

F. Coil: The indoor coil shall be of nonferrous construction with smooth plate fins on copper

tubing. The tubing shall have inner grooves for high efficiency heat exchange. All tube

joints shall be brazed with phos-copper or silver alloy. The coils shall be pressure tested at

the factory. A condensate pan and drain shall be provided under the coil. Both refrigerant

lines to the PKFY indoor units shall be insulated in accordance with the installation manual.

G. Electrical: The unit electrical power shall be 208/230 volts, 1-phase, 60 hertz. The system

shall be capable of satisfactory operation within voltage limits of 187-228 volts (208V/60Hz)

or 207-253 volts (230V/60Hz)

H. Controls:

1. This unit shall use controls provided by Mitsubishi Electric Cooling & Heating to

perform functions necessary to operate the system. Please refer to this specification for

details on controllers and other control options.

2. The unit shall be able to control external backup heat.

3. The unit shall have a factory built in receiver for wireless remote control

4. Indoor unit shall compensate for the higher temperature sensed by the return air sensor

compared to the temperature at level of the occupant when in HEAT mode. Disabling of

compensation shall be possible for individual units to accommodate instances when

compensation is not required.

5. Control board shall include contacts for control of external heat source. External heat

may be energized as second stage with 1.8°F – 9.0°F adjustable deadband from set point.

6. Indoor unit shall include no less than four (4) digital inputs capable of being used for

customizable control strategies.

7. Indoor unit shall include no less than three (3) digital outputs capable of being used for


2.4 PEFY-NMAU (CEILING-CONCEALED DUCTED) INDOOR UNIT:


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A. General: The PEFY shall be a ceiling-concealed ducted indoor fan coil design that mounts

above the ceiling with a 2-position, field adjustable return and a fixed horizontal discharge

supply and shall have a modulating linear expansion device. The PEFY shall be used with the

R2-Series outdoor unit and BC Controller. The PEFY shall support individual control using

M-NET DDC controllers.

B. Indoor Unit: The indoor unit shall be factory assembled, wired and run tested. Contained

within the unit shall be all factory wiring, piping, electronic modulating linear expansion

device, control circuit board and fan motor. The unit shall have a self-diagnostic function, 3-

minute time delay mechanism, and an auto restart function. Indoor unit and refrigerant pipes

shall be charged with dehydrated air before shipment from the factory.

C. Unit Cabinet: The unit shall be, ceiling-concealed, ducted. The cabinet panel shall have

provisions for a field installed filtered outside air intake.

D. Fan: PEFY-NMAU models shall feature external static pressure settings from 0.14 to 0.60 in.

WG. The indoor unit fan shall be an assembly with one or two Sirocco fan(s) direct driven

by a single motor. The indoor fan shall be statically and dynamically balanced and run on a

motor with permanently lubricated bearings. The indoor fan shall consist of three (3) speeds,

High, Mid, and Low plus the Auto-Fan function. The indoor unit shall have a ducted air

outlet system and ducted return air system.

E. Filter: Return air shall be filtered by means of a standard factory installed return air filter.

Optional return filter box (rear or bottom placement) with high-efficiency filter shall be

available for all PEFY indoor units. (Install where shown on plans or noted in the schedules.)

F. Coil: The indoor coil shall be of nonferrous construction with smooth plate fins on copper

tubing. The tubing shall have inner grooves for high efficiency heat exchange. All tube

joints shall be brazed with phos-copper or silver alloy. The coils shall be pressure tested at

the factory. A condensate pan and drain shall be provided under the coil. The condensate

shall be gravity drained from the fan coil. Both refrigerant lines to the PEFY indoor units

shall be insulated in accordance with the installation manual.

G. Electrical: The unit electrical power shall be 208/230 volts, 1-phase, 60 hertz. The system

shall be capable of satisfactory operation within voltage limits of 187-228 volts (208V/60Hz)

or 207-253 volts (230V/60Hz).

H. Controls:

1. This unit shall use controls provided by Mitsubishi Electric Cooling & Heating to

perform functions necessary to operate the system. Please refer to this specification for

details on controllers and other control options.

2. Indoor unit shall compensate for the higher temperature sensed by the return air sensor

compared to the temperature at level of the occupant when in HEAT mode. Disabling of

compensation shall be possible for individual units to accommodate instances when

compensation is not required.

3. Control board shall include contacts for control of external heat source. External heat

may be energized as second stage with 1.8°F – 9.0°F adjustable deadband from set point.

4. Indoor unit shall include no less than four (4) digital inputs capable of being used for



215-14 23 6310 - 8 VRF HEAT PUMPS

5. Indoor unit shall include no less than three (3) digital outputs capable of being used for


PART 3 – CONTROLS

3.1 OVERVIEW:

A. General: The CITY MULTI Controls Network (CMCN) shall be capable of supporting

remote controllers, centralized controllers, an integrated web based interface, graphical user

workstation, and system integration to Building Management Systems via BACnet®.

3.2 ELECTRICAL CHARACTERISTICS:

A. General: The CMCN shall operate at 30VDC. Controller power and communications shall

be via a common non-polar communications bus.

B. Wiring:

1. Control wiring shall be installed in a daisy chain configuration from indoor unit to indoor

unit, to the BC controller (main and subs, if applicable) and to the outdoor unit. Control

wiring to remote controllers shall be run from the indoor unit terminal block to the

controller associated with that unit.

2. Control wiring for the Simple MA and Wireless MA remote controllers shall be from the

remote controller (receiver) to the first associated indoor unit (TB-15) then to the

remaining associated indoor units (TB-15) in a daisy chain configuration.

3. Control wiring for centralized controllers shall be installed in a daisy chain configuration

from outdoor unit to outdoor unit, to the system controllers (centralized controllers and/or

integrated web based interface), to the power supply.

4. The AE-200, centralized controller shall be capable of being networked with other AE-

200, centralized controllers for centralized control.

5. Wiring shall be 2-conductor (16 AWG), twisted, stranded, shielded wire as defined by the

Diamond System Builder output.

6. Network wiring shall be CAT-5 with RJ-45 connection.

3.3 CITY MULTI CONTROLS NETWORK:

A. The CITY MULTI Controls Network (CMCN) consists of remote controllers, centralized

controllers, and/or integrated web based interface communicating over a high-speed

communication bus. The CITY MULTI Controls Network shall support operation

monitoring, scheduling, occupancy, error email distribution, personal web browsers, tenant

billing, online maintenance support, and integration with Energy Management Control

Systems (EMCS) using BACnet® interface.

B. The Backlit Simple MA Remote Controller (PAC-YT53CRAU) shall be capable of

controlling up to 16 indoor units (defined as 1 group). The Backlit Simple MA Remote

Controller shall be compact in size, approximately 3” x 5” and have limited user

functionality. The Backlit Simple MA supports temperature display selection of Fahrenheit

or Celsius. The Backlit Simple MA Remote Controller shall allow the user to change on/off,

mode (cool, heat, auto (R2/WR2-Series only), dry, setback (R2/WR2-Series only) and fan),

temperature setting, and fan speed setting and airflow direction. The Backlit Simple MA

Remote Controller shall be able to limit the set temperature range from the Backlit Simple

MA. The Backlit Simple MA Remote controller shall be capable of night setback control with


215-14 23 6310 - 9 VRF HEAT PUMPS

upper and lower set temperature settings. The room temperature shall be sensed at either the

Backlit Simple MA Remote Controller or the Indoor Unit dependent on the indoor unit

dipswitch setting. The Backlit Simple MA Remote Controller shall display a four-digit error

code in the event of system abnormality/error.

C. The Backlit Simple MA Remote Controller shall only be used in same group with Wireless

MA Remote Controllers (PAR-FL32MA-E / PAR-FA32MA-E) or with other Backlit Simple

MA Remote Controllers (PAC-YT53CRAU), with up to two remote controllers per group.

D. The Backlit Simple MA Remote Controller shall require no addressing. The Backlit Simple

MA Remote Controller shall connect using two-wire, stranded, non-polar control wire to

TB15 connection terminal on the indoor unit. The Simple MA Remote Controller shall

require cross-over wiring for grouping across indoor units. Centralized Controller (Web-

enabled).

E. The AE-200A Centralized Controller shall be capable of controlling a maximum of two

hundred (200) indoor units across multiple CITY MULTI outdoor units with the use of three

(3) AE-50A expansion controllers. The AE-200A Centralized Controller shall be

approximately 11-5/32” x 7-55/64” x 2-17/32” in size and shall be powered with an

integrated 100-240 VAC power supply. The AE-200A Centralized Controller shall support

system configuration, daily/weekly scheduling, monitoring of operation status, night setback

settings, free contact interlock configuration and malfunction monitoring. When being used

alone without the expansion controllers, the AE-200A Centralized Controller shall have five

basic operation controls which can be applied to an individual indoor unit, a collection of

indoor units (up to 50 indoor units), or all indoor units (collective batch operation). This basic

set of operation controls for the AE-200 Centralized Controller shall include on/off, operation

mode selection (cool, heat, auto (R2/WR2-Series only), dry, setback (R2/WR2-Series only)

and fan), temperature setting, fan speed setting, and airflow direction setting. Since the AE-

200A provides centralized control it shall be able to enable or disable operation of local

remote controllers. In terms of scheduling, the AE-200A Centralized Controller shall allow

the user to define both daily and weekly schedules (up to 24 scheduled events per day) with

operations consisting of ON/OFF, mode selection, temperature setting, air flow (vane)

direction, fan speed, and permit/prohibit of remote controllers.

F. All AE-200A Centralized Controllers shall be equipped with two RJ-45 Ethernet ports to

support interconnection with a network PC via a closed/direct Local Area Network (LAN) or

to a network switch for IP communication to up to three AE-50A expansion controllers for

display of up to two hundred (200) indoor units on the main AE-200A interface.

G. The AE-200A Centralized Controller shall be capable of performing initial settings via the

high-resolution, backlit, color touch panel on the controller or via a PC browser using the

initial settings.

H. Standard software functions shall be available so that the building manager can securely log

into each AE-200A via the PC’s web browser to support operation monitoring, scheduling,

error email, interlocking and online maintenance diagnostics. Additional optional software

functions of personal browser for PCs and MACs and Tenant Billing shall be available but

are not included. The Tenant Billing function shall require TG-2000 Integrated System

software in conjunction with the Centralized Controllers.


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I. The AE-50A Expansion Controller shall serve as a standalone centralized controller or as an

expansion module to the AE-200A Centralized Controller for the purpose of adding up to 50

indoor units to either the main touch screen interface of the AE-200A. Up to three (3) AE-

50A expansion controllers can be connected to the AE-200A via a local IP network (and their

IP addresses assigned on the AE-200A) to the AE-200A to allow for up to two hundred (200)

indoor units to be monitored and controlled from the AE-200A interface.

J. The AE-50A expansion controllers have all of the same capabilities to monitor and control

their associated indoor units as the features specified above. Even when connected to the AE-

200A and configured to display their units on the main controller, the individual indoor units

connected to the AE-50A can still be monitored and controlled from the interface of the AE-

50. The last command entered will take precedence, whether at the wall controller, the AE-

50A or the AE-200A Centralized Controller.

3.4 CMCN: SYSTEM INTEGRATION:

A. The CMCN shall be capable of supporting integration with EMCS. The Mitsubishi Electric

Cooling & Heating BACnet® interface, BAC-HD150, shall be compliant with BACnet®

Protocol (ANSI/ASHRAE 135-2004) and be Certified by the (BTL) BACnet® Testing

Laboratories. The BACnet® interface shall support BACnet Broadcast Management (BBMD).

The BACnet® interface shall support a maximum of 50 indoor units. Operation and

monitoring points include, but are not limited to, on/off, operation mode, fan speed, prohibit

remote controller, filter sign reset, alarm state, error code, and error address. Power Supply

(PAC-SC51KUA). The power supply shall supply 24VDC (TB3) for the AE-200/AE-50/EB-

50GU centralized controller and 30VDC (TB2) voltage for the central control transmission.

PART 4 – EXECUTION

4.1 INSTALLATION:

A. General: Rig and install in full accordance with manufacturer’s requirements, project

drawings, and contract documents. Refer to the manufacturer’s installation manual for full

requirements.

B. Location: Locate indoor and outdoor units as indicated on drawings. Provide service

clearance per manufacturer’s installation manual. Adjust and level outdoor units on support

structure. For climates that experience snowfall, mount the outdoor unit a minimum of 12”

above the average snowfall line. In climates where this height requirement proves unfeasible,

the outdoor units may be installed at the average snowfall line provided regular snow removal

in the area surrounding the units keeps the snow line below the bottom of the units.

C. Components / Piping:

1. Installing contractor shall provide and install all accessories and piping for a fully

operational system. Refer to manufacturer’s installation manual for full instructions.

2. Traps, filter driers, and sight glasses are NOT to be installed on the refrigerant piping or

condensate lines.

3. Standard ACR fittings rated for use with R410A are to be used for all connections.

Proprietary manufacturer-specific appurtenances are not allowed.

4. Refrigerant pipe for CITY MULTI shall be made of phosphorus deoxidized copper, and

has two types: ACR “Annealed”: Soft copper pipe, can be easily bent with human hand;


215-14 23 6310 - 11 VRF HEAT PUMPS

ACR “Drawn Temper”: Hard copper pipe (Straight pipe), being stronger than Type-O

pipe of the same radical thickness.

5. The maximum operation pressure of R410A air conditioner is 4.30 MPa [623psi] . The

refrigerant piping should ensure the safety under the maximum operation pressure. Refer

to recommend piping specifications in Mitsubishi Electric’s engineering manual. Pipes of

radical thickness 0.7mm or less shall not be used.

6. Flare connection should follow dimensions provided in manufacturer’s installation

manuals.

D. Insulation: Refrigerant lines, as well as any valves, shall be insulated end to end with ½”

closed-cell pipe insulation for piping up to 1”in diameter, or ¾” for piping 1-1/8” and larger,

with a thermal conductivity no greater than 0.27 BTU-in/hr sq.ft oF. If state or local codes

require insulation other than that specified above, the greater insulation shall be used.

E. Electrical: Installing contractor shall coordinate electrical requirements and connections for

all power feeds with electrical contractor. Refer to Division 26 for additional information.

F. Third Party Controls: Installing contractor shall coordinate all EMCS control requirements

and connections with controls contractor.

PART 5 – SERVICE

5.1 MAINTENANCE TOOL SOFTWARE AND MN-CONVERTER (CMS-MNG-E):

A. The Maintenance Tool, via the MN-Converter (CMS-MNG-E), shall enable the user to

monitor and record the following parameters in a centralized system.

1. Outdoor Unit:

a. Operation Mode (Cooling Only, Heating Only, Cooling Main, Heating Main)

b. Compressor Frequency, amperages, and voltages

c. Compressor high- and low-side pressure

d. System Temperatures

e. Outdoor temperature

f. Status of reversing valve

2. BC Controller:

a. Valve ON/OFF status

b. Temperatures

c. Pressures

3. Indoor Unit:

a. Entering Air Temperature

b. Entering/Leaving Refrigerant Temperature

c. Superheat/Subcool temperatures

d. LEV position

e. Room temperature setpoint

f. Unit Mode and Status (Heat, Cool, Dry, Auto, Fan)

B. The Maintenance Tool shall have the additional feature of controlling the following system

components manually:


215-14 23 6310 - 12 VRF HEAT PUMPS

1. Indoor Unit:

a. Indoor Unit ON/OFF

b. Mode (Heat, Cool, Dry, Auto, Fan)

c. Room Temperature Setpoint

d. Fan speed

e. LEV Position

2. BC Controller:

a. Valve OPEN/CLOSE

b. LEV Position

C. The Maintenance Tool shall be connectable to either the TB3 or TB7 communication bus

lines on the MNET via alligator connectors.

D. The Maintenance Tool shall be connectable to a PC via a USB cable.

E. Trended data from Maintenance Tool shall be available to export to a data file for offline

analysis.

PART 6 – VRF PROJECT SUPERVISION

6.1 GENERAL:

A. VRF Manufacturer shall provide on-site Project Supervision as outlined in this specification

section, providing: onsite technical review of installed VRF systems, review of activities

related to the installation of the VRF system, VRF system components and associated

controls.

B. All Project Supervision field activities shall be completed by an employee of the VRF

manufacturer whose primary job responsibilities are to provide direct technical support of

their product; sales staff or in-house support staff are not permitted to complete this scope of

work.

C. A factory certified representative may assist the VRF manufacturer’s personnel in the

completion of certain elements of work contained within this specification. Activities

completed by a Factory Certified Representative shall be supervised onsite by the VRF

manufacturer. Certified representatives shall not be used in lieu of the manufacturer’s

personnel.

D. The installing contractor shall assist the VRF manufacturer, in their completion of the system

review and have available onsite a technician with appropriate diagnostic tools, materials and

equipment, as required, for the duration of the inspection process. The technician assisting the

VRF manufacturer shall be fully licensed and insured to complete necessary duties as

directed by the VRF manufacturer.

E. The installing contractor shall have been certified by the manufacturer to install VRF

systems, having attended and successfully completed a minimum 3- day VRF Service &

Installation course at an approved training facility. A copy of this certificate shall be

presented to the VRF manufacturer prior to the commencement of installation activity.


215-14 23 6310 - 13 VRF HEAT PUMPS

F. VRF manufacturer shall provide 4 onsite visits during the course of the project’s completion.

Additional site visits, if requested, shall require approval by the owner’s representative and

will be billed accordingly.

G. Onsite visits shall be conducted at installation milestones noted below. The installing

contractor is responsible to coordinate each visit at the appropriate milestone, giving the VRF

manufacturer a minimum 2-week notice prior to each visit:

1. Project Kick Off meeting

2. Site Visit at 25% project completion

3. Site Visit at 50% project completion

4. Final Inspection prior to Commissioning of the VRF System

6.2 PROJECT KICK-OFF:

A. A project kick off meeting will be conducted with the installing contractor and appropriate

parties with the sole purpose to review the installation of VRF systems being installed.

B. Kick off meeting shall consist of a single meeting with the installing contractor. This

meeting shall be completed at the project site and be executed at the beginning stages of the

installation of VRF systems. Items to be reviewed during the Project kick-off meeting are:

1. Presentation of Best Practices and Installation Requirements specific to the VRF

system(s) being installed under this scope of work.

2. Review of the project’s mechanical design drawings related to the VRF systems being

installed. Documents to be provided by the mechanical contractor.

3. Review of VRF Manufacturers design selection software and system design schematic

drawings for the system being installed Documents to be provided by the mechanical

contractor.

4. Discuss project activity related to the installation of VRF system components.

5. Establish clear path of communication and project support. Mechanical contractor shall

designate an onsite point of contact for all field coordination activities.

C. The installing contractor shall obtain from the Engineer/Designer of the VRF system a copy

of the most current electronic design file used in the design and engineering process of the

VRF system being installed. This electronic design file shall have been completed on the

VRF Manufacturers software and is the mechanical contractor’s responsibility to provide the

most current as-built version of this file during the course of the projects installation.

D. The installing contractor shall provide the VRF manufacturer, for their use, a complete set of

HVAC mechanical plans prior to the Kick off meeting. The mechanical contractor is

responsible to updates these plans during the course of the project.

6.3 SITE VISIT:

A. Activities to be completed during each Site-Visit are as follows:

1. Meet with designated representative from the VRF installation contractor to discuss field

activities and provide technical support related to the VRF systems.

2. Review installed VRF systems for compliance with manufacturer’s installation, service

and engineering specifications.

3. Assist the contractor in updating the VRF Design software for as-built purposes and for

calculating the appropriate refrigerant charge.

4. Provide a field report identifying any installation issues requiring attention. Report shall

provide detailed information containing:


215-14 23 6310 - 14 VRF HEAT PUMPS

6.4 PROJECT CLOSE OUT DOCUMENTS:

A. Documents completed during the project Supervision process shall be compiled and

presented to the owner’s representative at the completion of field activities.

B. Close out documentation shall include Project Supervision Report outlining activities

completed under this scope of work, As-built VRF design file depicting Model numbers and

BTU capacity ratings of equipment installed, refrigerant pipe size & connection lengths

between each system component, calculated refrigerant charge, and an Issue Report.

PART 7 - VRF SYSTEM COMMISSIONING

7.1 GENERAL:

A. The VRF Manufacturer shall oversee and assist the installing contractor with the startup and

commissioning of VRF equipment as outlined below. This process will be completed in two

phases. Phase one shall cover the Pre-Start-Up inspection process, Phase two will cover the

Physical Start-Up and Commissioning of Equipment.

B. All VRF System Commissioning activities shall be completed by an employee of the VRF

manufacturer whose primary job responsibilities are to provide start up and commissioning of

their products; sales staff or in-house support staffs are not permitted to complete this scope

of work.

C. A factory certified representative may assist the VRF manufacturer’s personnel in the

completion of certain elements of work contained within this specification. Activities

completed by a Factory Certified Representative shall be supervised onsite by the VRF

manufacturer. Certified representatives shall not be used in lieu of the manufacturer’s

personnel.

D. The installing contractor shall have been certified by the manufacturer to install VRF

systems, having attended a minimum 3- day VRF Service and Installation course at an

approved training center. A copy of this certificate shall be presented as part of the VRF

equipment submittal process

E. The installing contractor shall assist the VRF manufacturer in their completion of the system

review and have available a technician with appropriate diagnostic tools, materials and

equipment, as required, for the duration of the inspection process. The technician shall be

fully licensed and insured to complete necessary duties as directed under the supervision of

the VRF manufacturer.

F. Upon completion of the Equipment Start-Up and VRF Commissioning process, the VRF

manufacturer shall provide a formal report outlining the status of the system, in electronic

format only. Contained within this report shall be copies of all field inspection reports,

required action items and status, Manufacturers design software As-Built, equipment model

& serial numbers.

G. Completion of the Equipment Start-Up and VRF Commissioning process shall verify that the

VRF system has been installed per the Engineer’s design intent and complies with the VRF

manufacturers engineering and installation specifications related to their equipment.


215-14 23 6310 - 15 VRF HEAT PUMPS

H. Compliance with federal, state and local codes as well as other authorities having

jurisdictions are not part of this process and are the responsibility of the installing contractor.

7.2 PRE-START-UP INSPECTION:

A. Contractor shall employ the services of the VRF manufacturer to provide a comprehensive

field review of the completed VRF system installation, prior to the physical start up and

operation of equipment. Upon satisfaction that the system meets the VRF manufacturer’s

installation requirements and specifications, the contractor shall be allowed to proceed with

the physical start up and operation of equipment.

B. Prior to the pre-start-up inspection, all systems components shall be in a final state of

readiness having been fully installed and awaiting inspection.

C. The installing contractor shall provide the VRF manufacturer a copy of the electronic design

file used in the design and engineering process of the system being inspected. This electronic

design file shall have been completed on software approved by the specified VRF

manufacturer and shall have been updated to reflect as-built conditions.

D. The installing contractor shall have prepared the refrigeration piping systems per equipment

installation and service manuals. All refrigerant piping systems, upon completion of

assembly, shall have been pressurized to a minimum 600 PSI, using dry nitrogen, and held

for an uninterrupted 24HR period, with acceptable change due to atmospheric conditions.

1. A record of the pressure check process shall be recorded and tagged at the outdoor unit.

The tag shall contain the following information: date & time of pressure check start, fill

pressure, outdoor temperature at start & stop, date & time of pressure check completion,

and the person’s full name & company information completing the pressure check.

2. The installing contractor shall engage the General Contractor as a witness of the pressure

check process, confirming that all steps and procedures related to the pressure check

where properly followed and that the system held the holding pressure of 600PSI for a

period of 24hr hours, with acceptable change due to atmospheric conditions. Witness

information, including full name, company name, title, phone number and signature shall

be recorded on same pressure tag used by installing contractor.

E. Upon completion of the 600 PSI pressure check, the system shall be evacuated to a level of

500 microns, where it will be held for a period of 1HR with no deflection. The installing

contractor shall utilize the triple evacuation method per the equipment install and service

manuals.

1. Evacuation start & stop dates, times, and persons involved shall be recorded and tagged

at the outdoor equipment.

2. Installing contractor shall digitally capture a photo of the micron gauge reading, at the

conclusion of the 1hr holding period, for each system and provide a copy to the VRF

manufacturer. Each photo shall contain a tag providing the outdoor units Serial number.

F. Upon the completion of the 500-micron hold, the calculated additional refrigerant charge can

be added. The calculated refrigerant charge shall have been calculated using the VRF

manufacturers design software. Total refrigerant charge of the system shall be recorded and

displayed at the outdoor unit by permanent means.

G. A review of the equipment settings shall be completed, with recommendations provided to

improve system performance, if applicable. Physical changes of system settings will be


215-14 23 6310 - 16 VRF HEAT PUMPS

completed by the contractor. Electronic recording of final DIP switches shall be provided as

part of the commissioning report.

H. A comprehensive review and visual inspection shall be completed for each piece of

equipment following a detailed check list, specific to the equipment being reviewed. A copy

of the inspection report shall be provided as part of the manufacturers close out

documentation. Any deficiencies found during the inspection process shall be brought to the

attention of the installing contractor for corrective action. Any system components that are

not accessible for proper inspection shall be noted as such.

7.3 PHYSICAL START-UP AND COMMISSIONING OF EQUIPMENT:

A. Upon proper equipment start up by the contractor, following the manufacturers guidelines

and specifications, an employee of the VRF manufacturer shall complete a review of the

system performance and complete the following tasks:

B. Check and confirm all communication addressing of system components.

C. Check and confirm each indoor unit, individually, is properly piped and wired by

commanding the indoor unit on, in either heat or cool mode and verifying proper response.

This process shall be digitally recorded and included as part of the close out documentation.

D. Electronically record a minimum of one-hour of operational data per refrigeration system.

E. Electronically record selector switch positions on all indoor and outdoor equipment.

F. The VRF manufacturer shall retain the electronically recorded data, collected during the start-

up and equipment commissioning process, at a designated location within the US for future

reference.

7.4 CLOSE-OUT INFORMATION:

A. The VRF manufacturer shall issue a System Performance report at the completion of all

fieldwork. Contained within this report shall be an overview of the system performance,

recommendations, field reports, all electronic data, and as-built design file.

7.5 VRF EQUIPMENT WARRANTY:

A. Having successfully completed the Pre-Inspection, Start-Up and Equipment Commissioning

processes and fulfilling all requirements, as outlined in the VRF manufacturers Extended

Warranty Process. Along with installing contractor being certified by the VRFR

manufacturer to install VRF systems, having attended a minimum 3- day VRF Service &

Installation course at an authorized training center.

B. The equipment shall be provided with the following warranty per the VRF manufacturer’s

warranty policy:

1. Compressor: 7-year part only.

2. Parts: 5-years part only.

3. Labor: no labor coverage provided by VRF Manufacturer.

7.6 OWNER TRAINING:


215-14 23 6310 - 17 VRF HEAT PUMPS

A. The VRF manufacturer shall provide the owner’s representative a minimum 4-hour VRF

Operation and Maintenance training class covering systems installed under this scope of

work.

B. Training program is to be provided at the time of owner occupancy.

C. Owner shall provide a suitable location, onsite, to conduct the VRF Operation and

Maintenance class.

D. Training material shall be provided to participants in electronic format.



215-14 23 7110 - 1 ENERGY RECOVERY VENTILATORS

SECTION 23 7110

ENERGY RECOVERY VENTILATORS

PART 1 - GENERAL




1.02 DESCRIPTION:

A. The ventilators shall be 100% outdoor air units designed to provide a continuous supply of

conditioned, filtered ventilation air.


A. Mitsubishi is the Basis of Design manufacturer for Energy Recovery Ventilators. Equivalent

equipment by Aaon, Addison, Greenheck, Modine or Valent that meets performance,



1. Comply with applicable provisions of NFPA 90A pertaining to construction and

installation of air conditioning units.

2. Comply with applicable provisions of UL465, and provide UL labels for electrical

components.



4. Extended Warranty: In addition to the standard one-year warranty on all components,

compressors shall bear an additional four-year manufacturer's warranty against material

and design defects.

1.04 SUBMITTALS:

A. Provide manufacturer's data, test reports, and product warranties as applicable.

PART 2 - PRODUCTS

2.01 SINGLE PACKAGE UNITS:

A. Units shall be single packaged type air conditioning units specifically engineered and

designed for 100% outdoor air conditioning. The unit shall use DX cooling with modulating

hot gas reheat, gas heat and energy recovery to deliver conditioned, dehumidified and filtered

ventilation air. Provide a built-in airflow measuring station to continuously report airflow

cfm to the EMCS. The units shall be completely factory assembled, piped, fully charged,

wired for single point power supply, and tested. All controls shall be factory installed and

preset to the design conditions, ready for start-up.

B. Cabinet: The cabinet shall be constructed of 14-gauge satin coated sheet metal with a 12-

gauge base. Hinged access doors shall be 2 inch double wall construction with flush mounted

cam latch mechanisms, safety door holders and raised compression gaskets. The inner wall



shall be minimum 22-gauge galvanized steel. The roof assembly shall also be weatherproof

double wall construction. Cabinet finish shall be the manufacturer’s standard. Insulation

shall be minimum 1 inch thick fiberglass board suitable for 250°F operating temperature and

5000 fpm air velocity. The surface shall be protected with a reinforcing mesh. The unit shall

have a built-in hinged door electrical control panel in a separate compartment from the

airstream. The enclosure shall be rated NEMA 4. The unit shall have a built-in filter rack

with a separate hinged access door. The outdoor air inlet shall have an extruded aluminum

storm-proof louver with 45 degree blades and ½ inch bird screen. Provide matching roof

curbs suitable for the roof slope. Curbs shall extend minimum 8 inches above roof surface.

Units shall be capable of resisting wind load specified in 239110.

C. Coils: Evaporator coils, hot gas reheat coils and condenser coils shall be ½ inch seamless

copper tubes mechanically expanded with aluminum fins, 16 gauge galvanized steel casing

and end plates with plated hardware. Coils shall be factory leak tested at minimum 400 psig

air pressure in a water bath. Evaporator coils shall be minimum six rows deep with

maximum air velocity of 500 fpm. Provide a sloped, self-draining IAQ drain pan under the

entire evaporator coil. The pan shall be 20-gauge stainless steel. Hot gas reheat coils shall be

factory-installed. Condenser coils shall receive a factory-applied corrosion protection

coating.

D. Refrigerant System: Compressors shall be the digital scroll type, suction gas cooled, suitable

for HFC refrigerant, equipped with internal thermal protection, service valves and resilient

type external mounting. The refrigerant circuit shall have an in-line solder type liquid line

filter drier, liquid and moisture indicator, hot gas bypass, suction accumulator, receiver with

pressure relief valve set at 400 psig and a thermostatic expansion valve. Tamper-proof,

hermetically sealed, non-adjustable high and low pressure controls and service valves shall be

installed using Schraeder type valves. Factory charge with HFC refrigerant.

E. Condenser Fan Section: Condenser fans shall be of the direct-driven propeller type, mounted

for vertical air discharge. The motor shall be inherently protected permanently lubricated

with sealed ball bearings and built-in overload protection. Condenser coil guard shall be

heavy gauge welded steel with baked-on epoxy coating.

F. Evaporator Fan Section: The evaporator supply fan shall be forward curved or plenum belt-

driven type DWDI mounted on a solid steel shaft supported by sealed ball bearings. Fan

drive shall be belt driven type with adjustable speed motor pulley. Fan shall be statically and

dynamically balanced and tested. Provide grease-lubricated, self–aligning ball bearings with

200,000 hours average life. The motor shall be an open drip-proof, induction type with class

B insulation and adjustable base.

G. Filters: Supply air and return air filters shall be the pleated type, minimum MERV 7.

Outside air filter shall be aluminum mesh. Provide an aluminum channel frame with drain

holes. Velocity shall not exceed 500 fpm.

H. Gas Heater: Provide manufacturer's stainless steel heat exchanger, burners and drip pan.

Heaters shall be AGA certified for natural gas operation. Units shall be complete with

factory-installed power venter and sealed collection chamber, overheat control, automatic gas

valve, safety pilot with 100% shut-off, pressure regulator, and manual shut-off valve.

Controls shall include automatic electric pilot re-ignition and built-in low-voltage

transformer. Power vented units shall also have a combustion air pressure safety switch.

I. Energy Recovery Section: The unit shall have a factory mounted and tested energy recovery



wheel mounted in a rigid frame containing the wheel drive motor, drive belt, wheel seals and

bearings. The wheel shall be rated in accordance with ARI 1060 and shall bear the ARI

certification symbol. The wheel shall be constructed of light weight polymer material with

permanently bonded desiccant coating. Wheel media shall be cleanable using hot water or

light detergent without degrading the efficiency. The exhaust fan shall be the backward

inclined type. Fan and motor shall be dynamically balanced. Include a backdraft damper.

J. Makeup Air Damper: Provide a factory-installed, parallel blade, two-position motorized

damper. The damper shall be fully open when the unit fan is running and completely closed

when the unit fan is off.

K. HVAC drain piping shall be supported on non-penetrating neoprene roof pedestal pipe

supports with clamps on maximum five foot spacing. Wood blocking is not allowed.

L. Controls: The control panel shall be built-in within a separate compartment not in the supply

airstream. Fan motors and compressor motors shall be controlled by contactors and shall be

protected with solid state adjustable trip overloads. Provide a low enthalpy cut-out, auxiliary

heating control interlock, condenser fan motor low ambient control, and built-in cool/reheat

outdoor air thermostat. An auto-reset voltage monitor shall be provided to shut down

electrical system in response to temporary voltage fluctuation or phase loss. Provide a power

block terminal and dry contacts for alarm and fan interlock. Connections shall be provided

for remote on/off control and firestat. All wires shall be in a wire duct. Compressors shall

have a time delay relay to prevent short-cycling. Provide a built-in airflow measuring station

to continuously report airflow cfm to the EMCS. See section 238310 for control sequence.

PART 3 - EXECUTION

3.01 INSPECTION:

A. Installer must examine areas and conditions under which units are to be installed and notify

the Contractor in writing of conditions detrimental to the proper completion of the work. Do

not proceed with the work until the unsatisfactory conditions have been corrected in a manner

acceptable to Installer.

3.02 INSTALLATION:

A. Install units where shown, in accordance with equipment manufacturer's written instructions

and recognized industry practices, to insure that units comply with requirements and serve

intended purposes.

B. Coordinate with other work, including structural, ductwork, piping and electrical work as

necessary to interface installation of ventilation units with other work. Control wiring,

conduit and devices for complete, operable systems shall be provided and installed under the

Mechanical specifications.

3.03 TESTING:

A. Upon completion of installation and connection to the completed air distribution system,

start-up and test equipment in accordance with the manufacturer's recommendations. Operate

units to demonstrate capability and compliance with requirements. Where possible, field-

correct malfunctioning units, then retest to demonstrate compliance.





215-14 23 8310 - 1 ENERGY MANAGEMENT CONTROL SYSTEM

SECTION 23 8310

ENERGY MANAGEMENT CONTROL SYSTEM

PART 1 - GENERAL




1.02 DESCRIPTION:

A. General: The control system shall consist of a high-speed, peer-to-peer network of DDC

controllers, a control system server, and a web-based operator interface.

B. System software shall be based on a server/thin client architecture, designed around the open

standards of web technology. The control system server shall be accessed using a Web browser

over the control system network, the owner's local area network, and (at the owner's discretion)

over the Internet.

C. The intent of the thin-client architecture is to provide operators complete access to the control

system via a Web browser. All systems in this section must tie back to the existing Web Access

server owned and operating in the Wayne County School District. No new Web Access server

should be required. Web browser shall be used to access graphics, point displays, and trends,

configure trends, configure points and controllers, or to download programming into the

controllers. Control system should support several web based browsers, including Google,

Chrome, Mozilla Firefox and Apple Safari.

D. System shall use the BACnet protocol for communication to the operator workstation or web

server and for communication between control modules. I/O points, schedules, setpoints, trends

and alarms specified in 23 09 93 – “Sequence of Operations for HVAC Controls” shall be

BACnet objects.

1.03 APPROVED CONTROL SYSTEM MANUFACTURERS:

A. The following are approved control system manufacturers and product lines: Carrier iVu,

Johnson Controls Inc. Metasys and Automated Logic Controls. Carrier iVu is Owner-

Preferred.

1. The Contractor shall use only operator workstation software, controller software, custom

application programming language, and controllers from the corresponding manufacturer

and product line unless Owner approves use of multiple manufacturers.

2. Other products specified herein (such as sensors, valves, dampers, and actuators) need not

be manufactured by the above manufacturers.


A. Installer and Manufacturer Qualifications:

1. Installer shall have an established working relationship with Control System Manufacturer.



2. Installer shall have successfully completed Control System Manufacturer’s control system

training. Upon request, Installer shall present record of completed training including course

outlines.

B. Codes and Standards: Work, materials, and equipment shall comply with the most restrictive

of local, state, and federal authorities' codes and ordinances or these plans and specifications.

As a minimum, the installation shall comply with the current editions in effect 30 days prior to

the receipt of bids of the following codes: 1. National Electric Code (NEC).

2. International Building Code (IBC).

3. Section 719 Ducts and Air Transfer Openings.

4. International Mechanical Code (IMC).

5. ANSI/ASHRAE Standard 135, BACnet - A Data Communication Protocol for Building

Automation and Control Systems. 1.05 SYSTEM PERFORMANCE:

A. Performance Standards: System shall conform to the following minimum standards over

network connections. Systems shall be tested using manufacturer’s recommended hardware

and software for operator workstation (server and browser for web-based systems):

1. Graphic Display: A graphic with 20 dynamic points shall display with current data within

10 sec.

2. Graphic Refresh: A graphic with 20 dynamic points shall update with current data within

8 sec. and shall automatically refresh every 15 sec.

3. Configuration and Tuning Screens: Screens used for configuring, calibrating, or tuning

points, PID loops, and similar control logic shall automatically refresh within 6 sec.

4. Object Command: Devices shall react to command of a binary object within 2 sec. Devices

shall begin reacting to command of an analog object within 2 sec.

5. Alarm Response Time: An object that goes into alarm shall be annunciated at the

workstation within 45 sec.

6. Program Execution Frequency. Custom and standard applications shall be capable of

running as often as once every 5 sec. Select execution times consistent with the mechanical

process under control.

7. Performance: Programmable controllers shall be able to completely execute DDC PID

control loops at a frequency adjustable down to once per sec. Select execution times

consistent with the mechanical process under control.

8. Multiple Alarm Annunciation: Each workstation on the network shall receive alarms

within 5 sec of other workstations.

9. Reporting Accuracy: System shall report values with minimum end-to-end accuracy listed

in Table 1.

10. Table 1 Reporting Accuracy / Table 2 Control Stability and Accuracy:

Measured Variable Reported Accuracy

Space Temperature ±0.5ºC (±1ºF)

Ducted Air ±1ºF

Outside Air ±2ºF

Dew Point ±3ºF

Water Temperature ±1ºF

Delta-T ±0.25ºF

Relative Humidity ±5% RH



Water Flow ±2% of full scale

Airflow (terminal) ±10% of full scale (see Note 1)

Airflow (measuring stations) ±5% of full scale

Airflow (pressurized spaces) ±3% of full scale

Air Pressure (ducts) ±0.1 in. w.g.

Air Pressure (space) ±0.01 in. w.g.

Water Pressure ±2% of full scale (see Note 2)

Electrical ±1% of reading (see Note 3)

Carbon Dioxide (CO2) ±50 ppm

Note 1: Accuracy applies to 10%–100% of scale.

Note 2: For both absolute and differential pressure.

Note 3: Not including utility-supplied meters.

Controlled Variable Control Accuracy Range of Medium

Air Pressure ±0.2 in. w.g.)

±0.01 in. w.g.

0–6 in. w.g.)

-0.1 to 0.1 in. w.g.)

Airflow ±10% of full scale

Space Temperature ±2.0ºF

Duct Temperature ±3ºF

Humidity ±5% RH

Fluid Pressure ±1.5 psi

±1.0 in. w.g.

1–150 psi

0–50 in. w.g.) differential


ENERGY MANAGEMENT CONTROL SYSTEM 23 8310 - 4

1.06 SUBMITTALS: A. Product Data and Shop Drawings: Meet requirements of Section 23 0220 Mechanical

Submittals on Shop Drawings, Product Data, and Samples. In addition, the contractor shall

provide shop drawings or other submittals on hardware, software, and equipment to be installed

or provided. No work may begin on any segment of this project until submittals have been

approved for conformity with design intent. Provide drawings as AutoCAD 2006 (or newer)

compatible files on magnetic or optical disk (file format: .DWG, .DXF, .VSD, or comparable)

and three 11” x 17” prints of each drawing. When manufacturer’s cutsheets apply to a product

series rather than a specific product, the data specifically applicable to the project shall be

highlighted or clearly indicated by other means. Each submitted piece of literature and drawing

shall clearly reference the specification and/or drawing that the submittal is to cover. General

catalogs shall not be accepted as cutsheets to fulfill submittal requirements. Select and show

submittal quantities appropriate to scope of work. Submittal approval does not relieve

Contractor of responsibility to supply sufficient quantities to complete work. Submittals shall

be provided within 12 weeks of contract award. Provide the following:

1. Schematic diagrams for all control, communication, and power wiring. Provide a schematic

drawing of the central system installation. Label all cables and ports with computer

manufacturers’ model numbers and functions. Show interface wiring to control system.

2. Network riser diagrams of wiring between central control unit and control panels.

3. Riser diagrams showing control network layout, communication protocol, and wire types.

4. A schematic diagram of each controlled system. The schematics shall have all control

points labeled with point names shown or listed. The schematics shall graphically show the

location of all control elements in the system.

5. A schematic wiring diagram of each controlled system. Label control elements and

terminals. Where a control element is also shown on control system schematic, use the

same name.

6. An instrumentation list (Bill of Materials) for each controlled system. List each control

system element in a table. Show element name, type of device, manufacturer, model

number, and product data sheet number.

7. A mounting, wiring, and routing plan-view drawing. The design shall take into account

HVAC, electrical, and other systems’ design and elevation requirements. The drawing shall

show the specific location of all concrete pads and bases and any special wall bracing for

panels to accommodate this work.

8. A complete description of the operation of the control system, including sequences of

operation. The description shall include and reference a schematic diagram of the

controlled system.

9. A point list for each control system. List I/O points and software points specified in Section

23 09 93. Indicate alarmed and trended points.

B. Training Materials: Provide course outline and materials for each class at least six weeks before

first class. Training shall be furnished via instructor-led sessions, computer-based training, or

web-based training. Engineer will modify course outlines and materials if necessary to meet

Owner’s needs. Engineer will review and approve course outlines and materials at least three

weeks before first class.

1.07 WARRANTY:

A. Warrant work as follows:

1. Warrant labor and materials for specified control system free from defects for a period of

12 months after final acceptance. Control system failures during warranty period shall be

adjusted, repaired, or replaced at no additional cost or reduction in service to Owner.



Respond during normal business hours within 24 hours of Owner’s warranty service

request.

2. Work shall have a single warranty date, even if Owner receives beneficial use due to early

system start-up. If specified work is split into multiple contracts or a multi-phase contract,

each contract or phase shall have a separate warranty start date and period.

3. If the engineer determines that equipment and systems operate satisfactorily at the end of

final start-up, testing, and commissioning phase, the engineer will certify in writing that

control system operation has been tested and accepted in accordance with the terms of this

specification. Date of acceptance shall begin warranty period.

4. Provide updates to operator workstation or web server software, project-specific software,

graphic software, database software, and firmware that resolve the contractor-identified

software deficiencies at no charge during warranty period. If available, Owner can

purchase in-warranty service agreement to receive upgrades for functional enhancements

associated with above-mentioned items. Do not install updates or upgrades without

Owner’s written authorization.

5. Exception: Contractor shall not be required to warrant reused devices except those that

have been rebuilt or repaired. Installation labor and materials shall be warranted.

Demonstrate operable condition of reused devices at time of Engineer’s acceptance.

PART 2 – PRODUCTS

2.01 MATERIALS:

A. Use new products the manufacturer is currently manufacturing and selling for use in new

installations. Do not use this installation as a product test site unless explicitly approved in

writing by Owner. Spare parts shall be available for at least five years after completion of this

contract.

2.02 COMMUNICATION:

B. Control products, communication media, connectors, repeaters, hubs, and routers shall

comprise a BACnet internetwork. Controller and operator interface communication shall

conform to ANSI/ASHRAE Standard 135, BACnet.

C. Install new wiring and network devices as required to provide a complete and workable control

network.

D. Each controller shall have a communication port for temporary connection to a laptop computer

or other operator interface. Connection shall support memory downloads and other

commissioning and troubleshooting operations.

E. Internetwork operator interface and value passing shall be transparent to internetwork

architecture. An operator interface connected to a controller shall allow the operator to

interface with each internetwork controller as if directly connected. Controller information such

as data, status, and control algorithms shall be viewable and editable from each internetwork

controller. Inputs, outputs, and control variables used to integrate control strategies across

multiple controllers shall be readable by each controller on the internetwork. Program and test

all cross-controller links required to execute control strategies specified herein. An authorized

operator shall be able to edit cross-controller links by typing a standard object address or by

using a point-and-click interface.



2.03 OPERATOR INTERFACE: A. The Operator Workstation or server shall conform to the BACnet Operator Workstation (B-

OWS) or BACnet Advanced Workstation (B-AWS) device profile as specified in

ASHRAE/ANSI 135 BACnet Annex L.

B. Operator Interface: Web server shall reside on high-speed network with building controllers.

C. Communication: Web server or workstation and controllers shall communicate using BACnet

protocol. Web server or workstation and control network backbone shall communicate using

ISO 8802-3 (Ethernet) Data Link/Physical layer protocol and BACnet/IP addressing as

specified in ANSI/ASHRAE 135, BACnet Annex J.

1. System Diagnostics: The system shall automatically monitor the operation of all building

management panels and controllers. The failure of any device shall be annunciated to the

operator.

2. Alarm Processing: System input and status objects shall be configurable to alarm on

departing from and on returning to normal state. Operator shall be able to enable or disable

each alarm and to configure alarm limits, alarm limit differentials, alarm states, and alarm

reactions for each system object. Configure and enable alarm points as specified in Section

23 09 93 (Sequences of Operation). Alarms shall be BACnet alarm objects and shall use

BACnet alarm services.

3. Alarm Messages: Alarm messages shall use the English language descriptor for the object

in alarm in such a way that the operator will be able to recognize the source, location, and

nature of the alarm without relying on acronyms.

4. Alarm Reactions: Operator shall be able to configure (by object) what, if any actions are

to be taken during an alarm. As a minimum, the workstation or web server shall be able to

log, print, start programs, display messages, send e-mail, send page, and audibly

annunciate.

5. Alarm and Event Log: Operators shall be able to view all system alarms and changes of

state from any location in the system. Events shall be listed chronologically. An operator

with the proper security level may acknowledge and delete alarms, and archive closed

alarms to the workstation or web server hard disk.

6. Trend Logs: The operator shall be able to configure trend sample or change of value (COV)

interval, start time, and stop time for each system data object and shall be able to retrieve

data for use in spreadsheets and standard database programs. Controller shall sample and

store trend data and shall be able to archive data to the hard disk. Configure trends as

specified in Section 23 09 93 (Sequences of Operation). Trends shall be BACnet trend

objects.

7. Object and Property Status and Control: Provide a method for the operator to view, and

edit if applicable, the status of any object or property in the system. The status shall be

available by menu, on graphics, or through custom programs.

8. Reports and Logs: Operator shall be able to select, to modify, to create, and to print reports

and logs. Operator shall be able to store report data in a format accessible by standard

spreadsheet and word processing programs.

9. Standard Reports: Furnish the following standard system reports:

a. Objects: System objects and current values filtered by object type, by status (in alarm,

locked, normal), by equipment, by geographic location, or by combination of filter

criteria.

b. Alarm Summary: Current alarms and closed alarms. System shall retain closed alarms

for an adjustable period.



c. Logs: System shall log the following to a database or text file and shall retain data for

an adjustable period:

i. Alarm History.

ii. Trend Data. Operator shall be able to select trends to be logged.

iii. Operator Activity. At a minimum, system shall log operator log in and log out,

control parameter changes, schedule changes, and alarm acknowledgment and

deletion. System shall date and time stamp logged activity.

2.04 CONTROLLER SOFTWARE:

A. Furnish the following applications for building and energy management. All software

application shall reside and operate in the system controllers. Applications shall be editable

through operator workstation, web browser interface, or engineering workstation.

B. Scheduling: Provide the capability to execute control functions according to a user created or

edited schedule. Each schedule shall provide the following schedule options as a minimum:

1. Weekly Schedule. Provide separate schedules for each day of the week. Each schedule

shall be able to include up to 5 occupied periods (5 start-stop pairs or 10 events).

2. Exception Schedules. Provide the ability for the operator to designate any day of the year

as an exception schedule. Exception schedules may be defined up to a year in advance.

Once an exception schedule has executed, the system shall discard and replace the

exception schedule with the standard schedule for that day of the week.

3. Holiday Schedules. Provide the capability for the operator to define up to 24 special or

holiday schedules. These schedules will be repeated each year. The operator shall be able

to define the length of each holiday period.

C. Demand Limiting:

1. The demand-limiting program shall monitor building power consumption from a building

power meter (provided by others) which generates pulse signals or a BACnet

communications interface. An acceptable alternative is for the system to monitor a watt

transducer or current transformer attached to the building feeder lines.

2. When power consumption exceeds adjustable levels, system shall automatically adjust

setpoints, de-energize low-priority equipment, and take other programmatic actions to

reduce demand as specified in Section 23 09 93 (Sequences of Operation). When demand

drops below adjustable levels, system shall restore loads as specified.

D. Maintenance Management: The system shall be capable of generating maintenance alarms

when equipment exceeds adjustable runtime, equipment starts, or performance limits.

Configure and enable maintenance alarms as specified in 23 09 93 (Sequences of Operation).

E. PID Control: System shall provide direct- and reverse-acting PID (proportional-integral-

derivative) algorithms. Each algorithm shall have anti-windup and selectable controlled

variable, setpoint, and PID gains. Each algorithm shall calculate a time-varying analog value

that can be used to position an output or to stage a series of outputs. The calculation interval,

PID gains, and other tuning parameters shall be adjustable by a user with the correct security

level.

2.05 CONTROLLERS:

A. BACnet:



1. Building Controllers (BCs): Each BC shall conform to BACnet Building Controller (B-

BC) device profile as specified in ANSI/ASHRAE 135, BACnet Annex L, and shall be

listed as a certified B-BC in the BACnet Testing Laboratories (BTL) Product Listing.

2. Advanced Application Controllers (AACs): Each AAC shall conform to BACnet

Advanced Application Controller (B-AAC) device profile as specified in ANSI/ASHRAE

135, BACnet Annex L and shall be listed as a certified B-AAC in the BACnet Testing

Laboratories (BTL) Product Listing.

3. Application Specific Controllers (ASCs): Each ASC shall conform to BACnet Application

Specific Controller (B-ASC) device profile as specified in ANSI/ASHRAE 135, BACnet

Annex L and shall be listed as a certified B-ASC in the BACnet Testing Laboratories (BTL)

Product Listing.

4. Smart Sensors (SSs): Each SS shall conform to BACnet Smart Sensor (B-SS) device

profile as specified in ANSI/ASHRAE 135, BACnet Annex L and shall be listed as a

certified B-SS in the BACnet Testing Laboratories (BTL) Product Listing.

5. BACnet Communication:

a. Each BC shall reside on or be connected to a BACnet network using ISO 8802-3

(Ethernet) Data Link/Physical layer protocol and BACnet/IP addressing.

b. BACnet routing shall be performed by BCs or other BACnet device routers as

necessary to connect BCs to networks of AACs and ASCs.

c. Each AAC shall reside on a BACnet network using ISO 8802-3 (Ethernet) Data

Link/Physical layer protocol with BACnet/IP addressing, or it shall reside on a BACnet

network using the ARCNET or MS/TP Data Link/Physical layer protocol.

d. Each ASC shall reside on a BACnet network using the ARCNET or MS/TP Data

Link/Physical layer protocol.

e. Each SA shall reside on a BACnet network using the ARCNET or MS/TP Data

Link/Physical layer protocol.

f. Each SS shall reside on a BACnet network using ISO 8802-3 (Ethernet) Data

Link/Physical layer protocol with BACnet/IP addressing, or it shall reside on a BACnet

network using ARCNET or MS/TP Data Link/Physical layer protocol.

B. Communication:

1. Service Port. Each controller shall provide a service communication port for connection to

a Portable Operator’s Terminal. Connection shall be extended to space temperature sensor

ports where shown on drawings.

2. Signal Management. BC and ASC operating systems shall manage input and output

communication signals to allow distributed controllers to share real and virtual object

information and to allow for central monitoring and alarms.

3. Data Sharing. Each BC and AAC shall share data as required with each networked BC and

AAC.

4. Stand-Alone Operation. Each piece of equipment specified in Section 23 09 93 shall be

controlled by a single controller to provide stand-alone control in the event of

communication failure. All I/O points specified for a piece of equipment shall be integral

to its controller. Provide stable and reliable stand-alone control using default values or

other method for values normally read over the network such as outdoor air conditions,

supply air or water temperature coming from source equipment, etc.

C. Environment: Controller hardware shall be suitable for anticipated ambient conditions.

1. Controllers used outdoors or in wet ambient conditions shall be mounted in waterproof

enclosures and shall be rated for operation at -29°C to 60°C (-20°F to 140°F).

2. Controllers used in conditioned space shall be mounted in dust-protective enclosures and

shall be rated for operation at 0°C to 50°C (32°F to 120°F).



D. Real-Time Clock: Controllers that perform scheduling shall have a real-time clock.

E. Serviceability: Provide diagnostic LEDs for power, communication, and processor. All wiring

connections shall be made to a field-removable modular terminal strip or to a termination card

connected by a ribbon cable. Each BC and AAC shall continually check its processor and

memory circuit status and shall generate an alarm on abnormal operation. System shall

continuously check controller network and generate alarm for each controller that fails to

respond.

F. Memory:

1. Controller memory shall support operating system, database, and programming

requirements.

2. Each BC and AAC shall retain BIOS and application programming for at least 72 hours in

the event of power loss.

3. Each ASC and SA shall use nonvolatile memory and shall retain BIOS and application

programming in the event of power loss. System shall automatically download dynamic

control parameters following power loss.

G. Immunity to Power and Noise: Controllers shall be able to operate at 90% to 110% of nominal

voltage rating and shall perform an orderly shutdown below 80% nominal voltage. Operation

shall be protected against electrical noise of 5 to 120 Hz and from keyed radios up to 5 W at 1

m (3 ft).

H. Transformer: ASC power supply shall be fused or current limiting and shall be rated at a

minimum of 125% of ASC power consumption.

2.06 AUXILIARY CONTROL DEVICES:

A. Motorized Control Dampers, unless otherwise specified elsewhere, shall be as follows:

1. Type: Control dampers shall be the parallel or opposed-blade type as specified below or

as scheduled on drawings.

2. Outdoor and return air mixing dampers and face-and-bypass dampers shall be parallel-

blade and shall direct airstreams toward each other.

3. Other modulating dampers shall be opposed-blade.

4. Two-position shutoff dampers shall be parallel- or opposed-blade with blade and side seals.

B. Temperature Sensors:

1. Type: Temperature sensors shall be Resistance Temperature Device (RTD) or thermistor.

2. Duct Sensors: Duct sensors shall be single point or averaging as shown. Averaging sensors

shall be a minimum of 1.5 m (5 ft) in length per 1 m2(10 ft2) of duct cross-section. 3. Immersion Sensors: Provide immersion sensors with a separable stainless steel well. Well

pressure rating shall be consistent with system pressure it will be immersed in. Well shall

withstand pipe design flow velocities.

4. Space Sensors: Space sensors shall have setpoint adjustment, override switch, display, and

communication port as shown.

5. Differential Sensors: Provide matched sensors for differential temperature measurement.

C. Humidity Sensors:

1. Duct and room sensors shall have a sensing range of 20%–80%.

2. Duct sensors shall have a sampling chamber.



3. Outdoor air humidity sensors shall have a sensing range of 20%–95% RH and shall be

suitable for ambient conditions of -40°C–75°C (-40°F–170°F).

4. Humidity sensors shall not drift more than 1% of full scale annually.

D. Relays:

1. Control Relays: Control relays shall be plug-in type, UL listed, and shall have dust cover

and LED “energized” indicator. Contact rating, configuration, and coil voltage shall be

suitable for application.

2. Time Delay Relays: Time delay relays shall be solid-state plug-in type, UL listed, and

shall have adjustable time delay. Delay shall be adjustable ±100% from setpoint shown.

Contact rating, configuration, and coil voltage shall be suitable for application. Provide

NEMA 1 enclosure for relays not installed in local control panel.

E. Voltage Transmitters:

1. AC voltage transmitters shall be self-powered single-loop (two-wire) type, 4–20 mA output

with zero and span adjustment.

2. Adjustable full-scale unit ranges shall be 100–130 Vac, 200–250 Vac, 250–330 Vac, and

400–600 Vac. Unit accuracy shall be ±1% full-scale at 500 ohm maximum burden.

3. Transmitters shall meet or exceed ANSI/ISA S50.1 requirements and shall be UL/CSA

recognized at 600 Vac rating.

F. Voltage Transformers:

1. AC voltage transformers shall be UL/CSA recognized, 600 Vac rated, and shall have built-

in fuse protection.

2. Transformers shall be suitable for ambient temperatures of 4°C–55°C (40°F–130°F) and

shall provide ±0.5% accuracy at 24 Vac and 5 VA load.

3. Windings (except for terminals) shall be completely enclosed with metal or plastic.

G. Power Monitors:

1. Selectable rate pulse output for kWh reading, 4–20 mA output for kW reading, N.O. alarm

contact, and ability to operate with 5.0 amp current inputs or 0–0.33 volt inputs.

2. 1.0% full-scale true RMS power accuracy, +0.5 Hz, voltage input range 120–600 V, and

auto range select.

3. Under voltage/phase monitor circuitry.

4. NEMA 1 enclosure.

5. Current transformers having a 0.5% FS accuracy, 600 VAC isolation voltage with 0–0.33

V output. If 0–5 A current transformers are provided, a three-phase disconnect/shorting

switch assembly is required.

H. Current Switches:

1. Current-operated switches shall be self-powered, solid-state with adjustable trip current.

Select switches to match application current and DDC system output requirements.

I. Pressure Transducers:

1. Transducers shall have linear output signal and field-adjustable zero and span.

2. Transducer sensing elements shall withstand continuous operating conditions of positive

or negative pressure 50% greater than calibrated span without damage.

J. Local Control Panels:



1. All indoor control cabinets shall be fully enclosed NEMA 1 construction with (hinged

door) key-lock latch and removable subpanels. A single key shall be common to all field

panels and subpanels.

2. Interconnections between internal and face-mounted devices shall be prewired with color-

coded stranded conductors neatly installed in plastic troughs and/or tie-wrapped. Terminals

for field connections shall be UL listed for 600 volt service, individually identified per

control/ interlock drawings, with adequate clearance for field wiring. Control terminations

for field connection shall be individually identified per control drawings.

3. Provide ON/OFF power switch with overcurrent protection for control power sources to

each local panel.

2.07 WIRING AND RACEWAYS:

A. General. Provide copper wiring, plenum cable, and raceways as specified in applicable

sections of Division 26.

B. Insulated wire shall use copper conductors and shall be UL listed for 200°F minimum service.

2.08 FIBER OPTIC CABLE SYSTEM:

A. Optical Cable: Optical cables shall be duplex 900 mm tight-buffer construction designed for

intra-building environments. Sheath shall be UL listed OFNP in accordance with NEC Article

770. Optical fiber shall meet the requirements of FDDI, ANSI X3T9.5 PMD for 62.5/125mm.

B. Connectors: Field terminate optical fibers with ST type connectors. Connectors shall have

ceramic ferrules and metal bayonet latching.

PART 3 – EXECUTION

3.01 EXAMINATION:

A. The contractor shall inspect the site to verify that equipment may be installed as shown. Any

discrepancies, conflicts, or omissions shall be reported to the engineer for resolution before

rough-in work is started.

B. The contractor shall examine the drawings and specifications for other parts of the work. If

head room or space conditions appear inadequate—or if any discrepancies occur between the

plans and the contractor’s work and the plans and the work of others—the contractor shall

report these discrepancies to the engineer and shall obtain written instructions for any changes

necessary to accommodate the contractor’s work with the work of others. Any changes in the

work covered by this specification made necessary by the failure or neglect of the contractor

to report such discrepancies shall be made by—and at the expense of—this contractor.

3.02 PROTECTION:

A. The contractor shall protect all work and material from damage by his/her work or employees

and shall be liable for all damage thus caused.

B. The contractor shall be responsible for his/her work and equipment until finally inspected,

tested, and accepted. The contractor shall protect any material that is not immediately installed.



The contractor shall close all open ends of work with temporary covers or plugs during storage

and construction to prevent entry of foreign objects.

3.03 COORDINATION:

A. Site:

1. Where the mechanical work will be installed in close proximity to, or will interfere with,

work of other trades, the contractor shall assist in working out space conditions to make a

satisfactory adjustment. If the contractor installs his/her work before coordinating with

other trades, so as to cause any interference with work of other trades, the contractor shall

make the necessary changes in his/her work to correct the condition without extra charge.

2. Coordinate and schedule work with other work in the same area and with work dependent

upon other work to facilitate mutual progress.

B. Test and Balance:

1. The contractor shall furnish a single set of all tools necessary to interface to the control

system for test and balance purposes.

2. The contractor shall provide training in the use of these tools. This training will be planned

for a minimum of 4 hours.

3. In addition, the contractor shall provide a qualified technician to assist in the test and

balance process, until the first 20 terminal units are balanced.

4. The tools used during the test and balance process will be returned at the completion of the

testing and balancing.

C. Life Safety:

1. Duct smoke detectors required for air handler shutdown are provided under Division 26.

Interlock smoke detectors to air handlers for shutdown as specified in Sequences of

Operation.

2. Smoke dampers and actuators required for duct smoke isolation are provided under

Division 23. Interlock smoke dampers to air handlers as specified in Sequences of

Operation.

3. Fire and smoke dampers and actuators required for fire-rated walls are provided under

Division 23. Fire and smoke damper control is provided under Division 26.

D. Coordination with controls specified in other sections or divisions. Other sections and/or

divisions of this specification include controls and control devices that are to be part of or

interfaced to the control system specified in this section. These controls shall be integrated

into the system and coordinated by the contractor as follows:

1. All communication media and equipment shall be provided as specified in Communication.

2. Each supplier of a controls product is responsible for the configuration, programming, start

up, and testing of that product to meet the Sequences of Operation.

3. The contractor shall coordinate and resolve any incompatibility issues that arise between

control products provided under this section and those provided under other sections or

divisions of this specification.

4. The contractor is responsible for providing all controls described in the contract documents

regardless of where within the contract documents these controls are described.

5. The contractor is responsible for the interface of control products provided by multiple

suppliers regardless of where this interface is described within the contract documents.

3.04 GENERAL WORKMANSHIP:



A. Install equipment, piping, and wiring/raceway parallel to building lines (i.e. horizontal,

vertical, and parallel to walls) wherever possible.

B. Provide sufficient slack and flexible connections to allow for vibration of piping and

equipment.

C. Install equipment in readily accessible locations as defined by Chapter 1 Article 100 Part A of

the National Electrical Code (NEC).

D. Verify integrity of all wiring to ensure continuity and freedom from shorts and grounds.

E. All equipment, installation, and wiring shall comply with industry specifications and standards

for performance, reliability, and compatibility and be executed in strict adherence to local codes

and standard practices.

3.05 FIELD QUALITY CONTROL:

A. All work, materials, and equipment shall comply with rules and regulations of applicable local,

state, and federal codes and ordinances as identified in Codes and Standards.

B. Contractor shall continually monitor the field installation for code compliance and quality of

workmanship.

C. Contractor shall have work inspection by local and/or state authorities having jurisdiction over

the work.

3.06 WIRING:

A. All control and interlock wiring shall comply with national and local electrical codes, and

Division 26 of this specification. Where the requirements of this section differ from Division

26, the requirements of this section shall take precedence.

B. All NEC Class 1 (line voltage) wiring shall be UL listed in approved raceway according to

NEC and Division 26 requirements.

C. All low-voltage wiring shall meet NEC Class 2 requirements. Low-voltage power circuits shall

be subfused when required to meet Class 2 current limit.

D. Where NEC Class 2 (current-limited) wires are in concealed and accessible locations, including

ceiling return air plenums, approved cables not in raceway may be used provided that cables

are UL listed for the intended application.

E. All wiring in mechanical, electrical, or service rooms – or where subject to mechanical damage

– shall be installed in raceway at levels below 10ft.

F. Do not install Class 2 wiring in raceways containing Class 1 wiring. Boxes and panels

containing high-voltage wiring and equipment may not be used for low-voltage wiring except

for the purpose of interfacing the two (e.g. relays and transformers).

G. Do not install wiring in raceway containing tubing.



H. Where Class 2 wiring is run exposed, wiring is to be run parallel along a surface or

perpendicular to it and neatly tied at 10 ft intervals.

I. Where plenum cables are used without raceway, they shall be supported from or anchored to

structural members. Cables shall not be supported by or anchored to ductwork, electrical

raceways, piping, or ceiling suspension systems.

J. All wire-to-device connections shall be made at a terminal block or terminal strip. All wire-to-

wire connections shall be at a terminal block.

K. All wiring within enclosures shall be neatly bundled and anchored to permit access and prevent

restriction to devices and terminals.

L. Maximum allowable voltage for control wiring shall be 120 V. If only higher voltages are

available, the contractor shall provide step-down transformers.

M. All wiring shall be installed as continuous lengths, with no splices permitted between

termination points.

N. Install plenum wiring in sleeves where it passes through walls and floors. Maintain fire rating

at all penetrations.

O. Size of raceway and size and type of wire type shall be the responsibility of the contractor in

keeping with the manufacturer’s recommendations and NEC requirements, except as noted

elsewhere.

P. Include one pull string in each raceway 1 in. or larger.

Q. Use color-coded conductors throughout with conductors of different colors.

R. Control and status relays are to be located in designated enclosures only. These enclosures

include packaged equipment control panel enclosures unless they also contain Class 1 starters.

S. Conceal all raceways except within mechanical, electrical, or service rooms. Install raceway to

maintain a minimum clearance of 6 in. from high-temperature equipment (e.g. steam pipes or

flues).

T. Secure raceways with raceway clamps fastened to the structure and spaced according to code

requirements. Raceways and pull boxes may not be hung on flexible duct strap or tie rods.

Raceways may not be run on or attached to ductwork.

U. Adhere to this specification's Division 26 requirements where raceway crosses building

expansion joints.

V. Install insulated bushings on all raceway ends and openings to enclosures. Seal top end of

vertical raceways.

W. The contractor shall terminate all control and/or interlock wiring and shall maintain updated

(as-built) wiring diagrams with terminations identified at the job site.



X. Flexible metal raceways and liquid-tight flexible metal raceways shall not exceed 3 ft in length

and shall be supported at each end. Flexible metal raceway less than ½ in. electrical trade size

shall not be used. In areas exposed to moisture, liquid-tight, flexible metal raceways shall be

used.

Y. Raceway must be rigidly installed, adequately supported, properly reamed at both ends, and

left clean and free of obstructions. Raceway sections shall be joined with couplings (according

to code). Terminations must be made with fittings at boxes, and ends not terminating in boxes

shall have bushings installed.

3.07 COMMUNICATION WIRING:

A. The contractor shall adhere to the items listed in the "Wiring" article in Part 3 of the

specification.

B. All cabling shall be installed in a neat and workmanlike manner. Follow manufacturer's

installation recommendations for all communication cabling.

C. Do not install communication wiring in raceways and enclosures containing Class 1 or other

Class 2 wiring.

D. Maximum pulling, tension, and bend radius for the cable installation, as specified by the cable

manufacturer, shall not be exceeded during installation.

E. Contractor shall verify the integrity of the entire network following cable installation. Use

appropriate test measures for each particular cable.

F. When a cable enters or exits a building, a lightning arrestor must be installed between the lines

and ground. The lighting arrestor shall be installed according to manufacturer’s instructions.

G. All runs of communication wiring shall be unspliced length when that length is commercially

available.

H. All communication wiring shall be labeled to indicate origination and destination data.

I. All communication wiring shall be labeled to indicate origination and destination data.

J. Grounding of coaxial cable shall be in accordance with NEC regulations article on

"Communications Circuits, Cable, and Protector Grounding."

K. BACnet MS/TP communications wiring shall be installed in accordance with ASHRAE/ANSI

Standard 135. This includes but is not limited to:

1. The network shall use shielded, twisted-pair cable with characteristic impedance between

100 and 120 ohms. Distributed capacitance between conductors shall be less than 30 pF

per foot.

2. The maximum length of an MS/TP segment is 4000 ft with AWG 18 cable. The use of

greater distances and/or different wire gauges shall comply with the electrical

specifications of EIA-485.

3. The maximum number of nodes per segment shall be 32, as specified in the EIA 485

standard. Additional nodes may be accommodated by the use of repeaters.

4. An MS/TP EIA-485 network shall have no T connections.



3.08 FIBER OPTIC CABLE:

A. Maximum pulling tensions as specified by the cable manufacturer shall not be exceeded during

installation. Post-installation residual cable tension shall be within cable manufacturer's

specifications.

B. All cabling and associated components shall be installed in accordance with manufacturers'

instructions. Minimum cable and unjacketed fiber bend radii, as specified by cable

manufacturer, shall be maintained.

3.09 INSTALLATION OF SENSORS:

A. Install sensors in accordance with the manufacturer's recommendations.

B. Mount sensors rigidly and adequately for environment within which the sensor operates.

C. Room temperature sensors shall be installed on concealed junction boxes properly supported

by wall framing. Where temperature sensors and RH sensors are shown side-by-side, a single

combination sensor shall be provided.

D. All wires attached to sensors shall be sealed in their raceways or in the wall to stop air

transmitted from other areas from affecting sensor readings.

E. Sensors used in mixing plenums and hot and cold decks shall be of the averaging type.

Averaging sensors shall be installed in a serpentine manner vertically across the duct. Each

bend shall be supported with a capillary clip.

F. Low-limit sensors used in mixing plenums shall be installed in a serpentine manner

horizontally across duct. Each bend shall be supported with a capillary clip. Provide 1 ft of

sensing element for each 1 ft2 of coil area.

G. Install outdoor air temperature sensors on north wall, complete with sun shield at designated

location.

3.010 ACTUATORS:

A. General: Mount and link control damper actuators according to manufacturer's instructions.

1. To compress seals when spring-return actuators are used on normally closed dampers,

power actuator to approximately 5° open position, manually close the damper, and then

tighten the linkage.

2. Check operation of damper/actuator combination to confirm that actuator modulates

damper smoothly throughout stroke to both open and closed positions.

3. Provide all mounting hardware and linkages for actuator installation.

B. Electric/Electronic:

1. Dampers: Actuators shall be direct mounted on damper shaft or jackshaft unless shown as

a linkage installation. For low-leakage dampers with seals, the actuator shall be mounted

with a minimum 5° travel available for tightening the damper seal. Actuators shall be

mounted following manufacturer’s recommendations.



3.011 WARNING LABELS:

A. Permanent warning labels shall be affixed to all equipment that can be automatically started

by the control system.

1. Labels shall use white lettering (12-point type or larger) on a red background.

2. Warning labels shall read as follows.

C A U T I O N

This equipment is operating under automatic control and may start or stop at any

time without warning. Switch disconnect to"Off"position before servicing.

B. Permanent warning labels shall be affixed to all motor starters and control panels that are

connected to multiple power sources utilizing separate disconnects.

1. Labels shall use white lettering (12-point type or larger) on a red background.

2. Warning labels shall read as follows.

C A U T I O N

This equipment is fed from more than one power source with separate disconnects.

Disconnect all power sources before servicing.

3.012 IDENTIFICATION OF HARDWARE AND WIRING:

A. All wiring and cabling, including that within factory-fabricated panels shall be labeled at each

end within 2 in. of termination with control system address or termination number.

B. Permanently label or code each point of field terminal strips to show the instrument or item

served.

C. Identify control panels with minimum ½ in. letters on laminated plastic nameplates.

D. Identify all other control components with permanent labels. All plug-in components shall be

labeled such that label removal of the component does not remove the label.

E. Identify room sensors related to terminal boxes or valves with nameplates.

F. Manufacturers' nameplates and UL or CSA labels shall be visible and legible after equipment

is installed.

G. Identifiers shall match record documents.

3.013 CONTROLLERS:

A. Provide a separate controller for each HVAC system. A DDC controller may control more

than one system provided that all points associated with the system are assigned to the same

DDC controller. Points used for control loop reset, such as outside air or space temperature,

are exempt from this requirement.

B. Building Controllers and Custom Application Controllers shall be selected to provide the

required I/O point capacity required to monitor all of the hardware points listed in Sequences

of Operation.

3.014 PROGRAMMING:



A. Provide sufficient internal memory for the specified sequences of operation and trend logging.

B. Point Naming: Name points as shown on the equipment points list provided with each

sequence of operation. See Sequences of Operation. If character limitations or space

restrictions make it advisable to shorten the name, abbreviations may be used. Where multiple

points with the same name reside in the same controller, each point name may be customized

with its associated Program Object number. For example, "Zone Temp 1" for Zone 1, "Zone

Temp 2" for Zone 2.

C. Software Programming: Provide programming for the system and adhere to the sequences of

operation provided. All other system programming necessary for the operation of the system,

but not specified in this document, also shall be provided by the contractor. Embed into the

control program sufficient comment statements to clearly describe each section of the program.

The comment statements shall reflect the language used in the sequences of operation. Use the

appropriate technique based on the following programming types:

a. Text-based:

a. Must provide actions for all possible situations

b. Must be modular and structured

c. Must be commented

b. Graphic-based:


b. Must be documented

c. Parameter-based:


b. Must be documented.

D. Operator Interface:

1. Standard Graphics. Provide graphics for all mechanical systems and floor plans of the

building. This includes each chilled water system, hot water system, chiller, boiler, air

handler, and all terminal equipment. Point information on the graphic displays shall

dynamically update. Show on each graphic all input and output points for the system. Also

show relevant calculated points such as setpoints. As a minimum, show on each equipment

graphic the input and output points and relevant calculated points as indicated on the

applicable Points List in Section 23 09 93.

2. The contractor shall provide all the labor necessary to install, initialize, start up, and

troubleshoot all operator interface software and its functions as described in this section.

This includes any operating system software, the operator interface database, and any third-

party software installation and integration required for successful operation of the operator

interface.

3.015 CONTROL SYSTEM CHECKOUT AND TESTING:

A. Startup Testing: All testing listed in this article shall be performed by the contractor and shall

make up part of the necessary verification of an operating control system. This testing shall be

completed before the owner’s representative is notified of the system demonstration.

1. The contractor shall furnish all labor and test apparatus required to calibrate and prepare

for service of all instruments, controls, and accessory equipment furnished under this

specification.

2. Verify that all control wiring is properly connected and free of all shorts and ground faults.

Verify that terminations are tight.



3. Enable the control systems and verify calibration of all input devices individually. Perform

calibration procedures according to manufacturers’ recommendations.

4. Verify that all binary output devices (relays, solenoid valves, two-position actuators and

control valves, magnetic starters, etc.) operate properly and that the normal positions are

correct.

5. Verify that all analog output devices (I/Ps, actuators, etc.) are functional, that start and span

are correct, and that direction and normal positions are correct. The contractor shall check

all control valves and automatic dampers to ensure proper action and closure. The

contractor shall make any necessary adjustments to valve stem and damper blade travel.

6. Verify that the system operation adheres to the sequences of operation. Simulate and

observe all modes of operation by overriding and varying inputs and schedules. Tune all

DDC loops.

7. Alarms and Interlocks:

a. Check each alarm separately by including an appropriate signal at a value that will trip

the alarm.

b. Interlocks shall be tripped using field contacts to check the logic, as well as to ensure

that the fail-safe condition for all actuators is in the proper direction.

c. Interlock actions shall be tested by simulating alarm conditions to check the initiating

value of the variable and interlock action.

3.016 CONTROL SYSTEM DEMONSTRATION AND ACCEPTANCE:

A. Demonstration:

1. Prior to acceptance, the control system shall undergo a series of performance tests to verify

operation and compliance with this specification. These tests shall occur after the

Contractor has completed the installation, started up the system, and performed his/her own

tests.

2. The tests described in this section are to be performed in addition to the tests that the

contractor performs as a necessary part of the installation, start-up, and debugging process

and as specified in the "Control System Checkout and Testing" article in Part 3 of this

specification. The engineer will be present to observe and review these tests. The engineer

shall be notified at least 10 days in advance of the start of the testing procedures.

3. The demonstration process shall follow that approved in Part 1, "Submittals." The

approved checklists and forms shall be completed for all systems as part of the

demonstration.

4. The contractor shall provide at least two persons equipped with two-way communication

and shall demonstrate actual field operation of each control and sensing point for all modes

of operation including day, night, occupied, unoccupied, fire/smoke alarm, seasonal

changeover, and power failure modes. The purpose is to demonstrate the calibration,

response, and action of every point and system. Any test equipment required to prove the

proper operation shall be provided by and operated by the contractor.

5. As each control input and output is checked, a log shall be completed showing the date,

technician’s initials, and any corrective action taken or needed.

6. Demonstrate compliance with Part 1, "System Performance."

7. Demonstrate compliance with sequences of operation through all modes of operation.

8. Demonstrate complete operation of operator interface.

9. Additionally, the following items shall be demonstrated:

a. DDC loop response. The contractor shall supply trend data output in a graphical form

showing the step response of each DDC loop. The test shall show the loop’s response

to a change in set point, which represents a change of actuator position of at least 25%

of its full range. The sampling rate of the trend shall be from 10 seconds to 3 minutes,



depending on the speed of the loop. The trend data shall show for each sample the set

point, actuator position, and controlled variable values. Any loop that yields

unreasonably under-damped or over-damped control shall require further tuning by the

Contractor.

b. Demand limiting. The contractor shall supply a trend data output showing the action

of the demand limiting algorithm. The data shall document the action on a minute-by-

minute basis over at least a 30-minute period. Included in the trend shall be building

kW, demand limiting set point, and the status of sheddable equipment outputs.

c. Optimum start/stop. The contractor shall supply a trend data output showing the

capability of the algorithm. The change-of-value or change-of-state trends shall include

the output status of all optimally started and stopped equipment, as well as temperature

sensor inputs of affected areas.

d. Interface to the building fire alarm system.

e. Operational logs for each system that indicate all set points, operating points, valve

positions, mode, and equipment status shall be submitted to the architect/engineer.

These logs shall cover three 48-hour periods and have a sample frequency of not more

than 10 minutes. The logs shall be provided in both printed and disk formats.

10. Any tests that fail to demonstrate the operation of the system shall be repeated at a

later date. The contractor shall be responsible for any necessary repairs or revisions to

the hardware or software to successfully complete all tests.

B. Acceptance:

1. All tests described in this specification shall have been performed to the satisfaction of

both the engineer and owner prior to the acceptance of the control system as meeting the

requirements of completion. Any tests that cannot be performed due to circumstances

beyond the control of the contractor may be exempt from the completion requirements if

stated as such in writing by the engineer. Such tests shall then be performed as part of the

warranty.

2. The system shall not be accepted until all forms and checklists completed as part of the

demonstration are submitted and approved as required in Part 1, "Submittals."

3.017 CLEANING:

A. The contractor shall clean up all debris resulting from his/her activities daily. The contractor

shall remove all cartons, containers, crates, etc., under his/her control as soon as their contents

have been removed. Waste shall be collected and placed in a designated location.

B. At the completion of work in any area, the contractor shall clean all work, equipment, etc.,

keeping it free from dust, dirt, and debris, etc.

C. At the completion of work, all equipment furnished under this section shall be checked for

paint damage, and any factory-finished paint that has been damaged shall be repaired to match

the adjacent areas. Any cabinet or enclosure that has been deformed shall be replaced with new

material and repainted to match the adjacent areas.

3.018 TRAINING:

A. Provide training for a designated staff of Owner’s representatives. Training shall be provided

via self-paced training, web-based or computer-based training, classroom training, or a

combination of training methods.



B. Classroom training shall be done using a network of working controllers representative of

installed hardware.

3.019 DUCT SMOKE DETECTION:

A. Submit data for coordination of duct smoke detector interface to HVAC systems as required

in Part 1, "Submittals."

B. This Contractor shall provide a dry-contact alarm output in the same room as the HVAC

equipment to be controlled.

3.020 CONTROLS COMMUNICATION PROTOCOL:

A. General: The electronic controls packaged with this equipment shall communicate with the

building direct digital control (DDC) system. The DDC system shall communicate with these

controls to read the information and change the control setpoints as shown in the points list,

sequences of operation, and control schematics. The information to be communicated between

the DDC system and these controls shall be in the standard object format as defined in

ANSI/ASHRAE Standard 135 (BACnet). Controllers shall communicate with other BACnet

objects on the internetwork using the Read (Execute) Property service as defined in Clause

15.5 of Standard 135.

B. Distributed Processing: The controller shall be capable of stand-alone operation and shall

continue to provide control functions if the network connection is lost.

C. I/O Capacity: The controller shall contain sufficient I/ O capacity to control the target system.

D. The Controller shall have a physical connection for a laptop computer or a portable operator’s

tool.

E. Environment: The hardware shall be suitable for the anticipated ambient conditions.

1. Controllers used outdoors and/or in wet ambient conditions shall be mounted within

waterproof enclosures and shall be rated for operation at 40°F to 140°F.

2. Controllers used in conditioned space shall be mounted in dust-proof enclosures and shall

be rated for operation at 32°F to 120°F.

F. Serviceability: Provide diagnostic LEDs for power, communication, and processor. All wiring

connections shall be made to field removable, modular terminal strips or to a termination card

connected by a ribbon cable.

G. Memory: The Controller shall maintain all BIOS and programming information in the event

of a power loss for at least 30 days.

H. Power: Controller shall be able to operate at 90% to 110% of nominal voltage rating.

I. Transformer: Power supply for the Controller must be rated at minimum of 125% of ASC

power consumption and shall be fused or current limiting type.

3.021 START-UP AND CHECKOUT PROCEDURES:



A. Start up, check out, and test all hardware and software and verify communication between all

components.

1. Verify that all control wiring is properly connected and free of all shorts and ground faults.

Verify that terminations are tight.

2. Verify that all analog and binary input/output points read properly.

3. Verify alarms and interlocks.

4. Verify operation of the integrated system.

B. Provide a Master HVAC System Shutdown Switch in the Administration area where shown

on the plans. The manual switch shall shut down all HVAC equipment in the building.



PART 4 - SEQUENCES OF OPERATION

4.01 VRF HEAT PUMP SYSTEM (TYPICAL):

A. During the Occupied Mode the VRF system will be enabled in the Auto Mode. The fan will

run continuously and the compressors will operate in a cooling or heating mode in response

to the local room temperature interface.

B. Upon entering the Occupied Mode the initial fan speed setting will be high (configurable)

and will revert to local control should the fan speed be overridden by the local interface.

C. Upon entering the Occupied Mode the setpoint will be overwritten with the occupied set-

point (configurable) and will revert to local control should the setpoint be adjusted from the

local interface. Heating and Cooling Temperature Limits (configurable) will be available to

prevent the local occupant from adjusting the heating and cooling setpoint too drastically. D. Upon entering the Unoccupied Mode the fan will be commanded to low speed (configura-

ble). E. During the Unoccupied Mode the unit will remain off unless the space temperature exceeds

the unoccupied heating and cooling setpoints. If the unit turns on to maintain Unoccupied

setpoints it will remain on until it satisfies the Unoccupied setpoints by 2° (adjustable) be-

fore being turned off. F. Unit status, alarm information and error codes will be available through the EMCS.

BACnet points to be integrated from VRF system

Object Description Object Type Effective Cool-ing Setpoint

BAV

Effective Heat-ing Setpoint

BAV

Cooling Set-point Limited (High)

BBV

Cooling Set-point Limited (Low)

BBV

Heating Set-point Limited (High)

BBV

Heating Set-point Limited (Low)

BBV

schedule BBV

Setpoint Write Enable

BBV

Airflow Direc-tion Setup

BMSV

Error Codes BMSV

Fan Speed BMSV

occ_fan_speed BMSV

Occupancy Source

BMSV

Occupied Unit Operation Mode

BMSV

Operation Mode

BMSV

un-occ_fan_speed

BMSV



Unoccupied Mode (Local Only)

BMSV

Unoccupied Unit Operation Mode

BMSV

Update Status BMSV

Vane Direction BMSV

High Space Temp

BALM

Low Space Temp

BALM

Mnet Alarm - Air System

BALM

Mnet Alarm - Communica-tion

BALM

Mnet Alarm - Condensate

BALM

Mnet Alarm - Electronic

BALM

Mnet Alarm - Other

BALM

Mnet Alarm - Refrigeration

BALM

Mnet Alarm - Sensor

BALM

Mnet Alarm - System

BALM

Airflow Direc-tion Setup

ANO

Alarm Signal BNI

Current Set-point ANI

ANI

Emergency Shutdown Net Input

BNI2

Error Code ANI

Fan Speed Setup

ANO

Fan Speed Status

ANI

Filter Reset BNO

Filter Signal BNI

Local Opera-tion

BNO

Network Inter-lock (Occu-pancy)

BNI2

OAT ANI

On/Off Setup BNO

On/Off State BNI

Operation Mode

ANI

Operation Mode

ANO

Room Temp ANI

Set Temp ANO2

Unit Shutdown BNO2



Vane Direction Status

ANI



4.02 ENERGY RECOVERY VENTILATOR - SUPPLY AIR TEMP (TYPICAL):

A. Occupied Mode: The supply fan and exhaust fan shall run continuously during Occupied

Mode.

B. Unoccupied Mode (night setback): The unit shall be “off.”

C. The unit shall shut down and generate an alarm upon receiving an emergency shutdown signal.

D. The unit shall shut down and generate an alarm upon receiving a smoke detector status.

E. The outside air damper shall open anytime the unit runs and shall close anytime the unit stops.

The supply fan and exhaust fan shall start only after the damper status has proven the damper

is open. The outside air damper shall close 4sec (adj.) after the supply fan stops.

F. Outside Air Damper Failure Alarm: Commanded open, but the status is closed.

G. Outside Air Damper in Hand Alarm: Commanded closed, but the status is open.

H. Cooling Energy Recovery Mode: The controller shall measure the total energy wheel

discharge air temperature and run the wheel to maintain a setpoint 2°F (adj.) less than the unit

supply air temperature setpoint. The wheel shall run for cool recovery whenever the unit return

air temperature is 5°F (adj.) or more below the outside air temperature and the unit is in a

cooling mode and the supply fan is on.

I. Heating Energy Recovery Mode: The controller shall measure the total energy

wheel discharge air temperature and run the wheel to maintain a setpoint 2°F (adj.) greater than

the unit supply air temperature setpoint. The wheel shall run for heat recovery whenever unit

return air temperature is 5°F (adj.) or more above the outside air temperature and the unit is in

a heating mode and the supply fan is on.

J. Periodic Self-Cleaning: The total energy wheel shall run for 10sec (adj.) every 4hrs (adj.) the

unit runs.

K. Alarms shall be provided for:

1. Total Energy Wheel Rotation Failure: Commanded on, but the status is off.

2. Total Energy Wheel in Hand: Commanded off, but the status is on.

3. Total Energy Wheel Runtime Exceeded: Status runtime exceeds a user definable limit

(adj.).

L. Alarms shall be provided as follows:

1. Supply / Exhaust Fan Failure: Commanded on, but the status is off.

2. Supply / Exhaust Fan in Hand: Commanded off, but the status is on.

3. Supply / Exhaust Fan Runtime Exceeded: Status runtime exceeds a user definable limit

(adj.).

M. Supply Air Temperature Setpoint - Outside Air Reset: The controller shall monitor the supply

air temperature and shall maintain supply air temperature setpoint. The supply air temperature

setpoint shall reset for cooling as follows: As outside air temperature drops from 95°F (adj.)

to 20°F (adj.), the supply air temperature setpoint shall reset upwards from 55°F (adj.) to

95°F (adj.).

N. Cooling Coil: The controller shall measure the supply air temperature and stage the DX

cooling to maintain its cooling setpoint. The cooling shall be enabled whenever outside air

temperature is greater than 50°F (adj.) and the supply air temperature is above cooling setpoint

and the fan status is on.



O. Gas Heating Stages: The controller shall measure the supply air temperature and stage the

heating to maintain its heating setpoint. To prevent short cycling, there shall be a user

definable (adj.) delay between stages, and each stage shall have a user definable

(adj.) minimum runtime. The heating shall be enabled whenever outside air temperature is

less than 55°F (adj.) and the supply air temperature is below heating setpoint and the fan status

is on.

P. Filter Status: The controller shall monitor the status for outside air filter, supply air filter and

exhaust air filter. Filter alarms shall be provided when differential pressure exceeds a user

definable limit (adj.).

Q. Supply Air Temperature: The controller shall monitor the supply air temperature. Alarms

shall be provided for High Supply Air Temp (If the supply air temperature is greater than

120°F (adj.)) and Low Supply Air Temp (If the supply air temperature is less than 40°F (adj.))

Hardware

Points Software Points

Point Name AI A

O BI

B

O

A

V BV Loop Sched Trend

Alar

m

Show On

Graphic

Outside Air Temp x x x

Exhaust Air Temp x x x

Heat Wheel Discharge Air Temp x x x

Return Air Temp x x x

Supply Air Temp x x x

Cooling Valve x x x

Smoke Detector x x x x

Outside Air Damper Status x x x

Heat Wheel Status x x x

Supply Fan Status x x x

Exhaust Fan Status x x x

Prefilter Status x x

Final Filter Status x x

Outside Air Damper x x x

Heat Wheel Start/Stop x x x

Heat Wheel Bypass Dampers x x x

Supply Fan Start/Stop x x x

Exhaust Fan Start/Stop x x x

Heating Stage 1 x x x





Hardware


Point Name AI A

O BI

B

O

A


Alar

m

Show On

Graphic


Supply Air Temp Setpoint x x x

Outside Air Temp x x

Emergency Shutdown x x x x

Schedule x

Outside Air Damper Failure x

Outside Air Damper in Hand x

Heat Wheel Rotation Failure x

Heat Wheel in Hand x

Heat Wheel Runtime Exceeded x

Supply Fan Failure x

Supply Fan in Hand x

Supply Fan Runtime Exceeded x

Exhaust Fan Failure x

Exhaust Fan in Hand x

Exhaust Fan Runtime Exceeded x

Prefilter Change Required x x

Final Filter Change Required x x

High Supply Air Temp x

Low Supply Air Temp x

Totals 5 1 7 9 2 1 0 1 23 18 25

Total Hardware (22) Total Software (45)



4.03 ROOFTOP AIR CONDITIONER (TYPICAL):

A. Occupied Mode: The supply fan shall run continuously during Occupied Mode and

maintain 74°F (adj.) space cooling setpoint and 70°F (adj.) space heating setpoint.

B. Unoccupied Mode (night setback): The supply fan shall run intermittently and maintain 85°F

(adj.) space cooling setpoint and 55°F (adj.) space heating setpoint.

C. High Zone Temp Alarm: If the zone temperature is greater than the cooling setpoint by a user

definable amount (adj.).

D. Low Zone Temp Alarm: If the zone temperature is less than the heating setpoint by a user


E. Zone Setpoint Adjust: The occupant shall be able to adjust the zone temperature heating and

cooling setpoints at the zone sensor.

F. Zone Optimal Start: The unit shall use an optimal start algorithm for morning start-up. This

algorithm shall minimize the unoccupied warm-up or cool-down period while still achieving

comfort conditions by the start of scheduled occupied period.

G. Zone Unoccupied Override: A timed local override control shall allow an occupant to override

the schedule and place the unit into an occupied mode for an adjustable period of time. At the

expiration of this time, control of the unit shall automatically return to the schedule.

H. Emergency Shutdown: The unit shall shut down and generate an alarm upon receiving an

emergency shutdown signal.

I. Supply Air Smoke Detection: The unit shall shut down and generate an alarm upon receiving

a supply air smoke detector status.

J. Alarms shall be provided as follows:

1. Supply Fan Failure: Commanded on, but the status is off.

2. Supply Fan in Hand: Commanded off, but the status is on.

3. Supply Fan Runtime Exceeded: Status runtime exceeds a user definable limit (adj.).

K. Cooling Stages: The controller shall measure the zone temperature and stage the cooling to

maintain its cooling setpoint. To prevent short cycling, there shall be a user definable (adj.)

delay between stages, and each stage shall have a user definable (adj.) minimum runtime.

Cooling shall be enabled whenever outside air temperature is greater than 45°F (adj.) and the

economizer (if present) is disabled or fully open and the zone temperature is above cooling

setpoint and the supply fan status is on and the heating is not active.

L. Gas Heating Stages: The controller shall measure the zone temperature and stage the heating

to maintain its heating setpoint. To prevent short cycling, there shall be a user definable (adj.)

delay between stages, and each stage shall have a user definable (adj.) minimum runtime.

Heating shall be enabled whenever outside air temperature is less than 65°F (adj.) and the zone

temperature is below heating setpoint and the supply fan status is on and the cooling is not

active.

M. Economizer: The controller shall measure the zone temperature and modulate the economizer

dampers in sequence to maintain a setpoint 2°F less than the zone cooling setpoint. The outside

air dampers shall maintain a minimum adjustable position of 10% (adj.) open whenever

occupied. The economizer shall be enabled whenever outside air temperature is less than

55°F (adj.) and the outside air temperature is less than the return air temperature and the supply



fan status is on. The economizer shall close whenever mixed air temperature drops from

45°F to 40°F (adj.) or on loss of supply fan status.

N. The outside and exhaust air dampers shall close and the return air damper shall open when the

unit is off. If Optimal Start Up is available, the mixed air damper shall operate as described in

the occupied mode except that the outside air damper shall modulate to fully closed.

O. Minimum Outside Air Ventilation - Fixed Percentage: The outside air dampers shall maintain

a minimum position (adj.) during building occupied hours and be closed during unoccupied

hours.

P. Dehumidification: The controller shall measure the return air humidity and override the

cooling sequence to maintain return air humidity at or below 60% rh (adj.). Dehumidification

shall be enabled whenever the supply fan status is on.

Q. Mixed Air Temperature: The controller shall monitor the mixed air temperature and use as

required for economizer control (if present) or preheating control (if present). Alarms shall be

provided for High Mixed Air Temp (If the mixed air temperature is greater than 110°F (adj.))

and Low Mixed Air Temp (If the mixed air temperature is less than 40°F (adj.)).

R. Return Air Humidity: The controller shall monitor the return air humidity and use as

required for economizer control (if present) or humidity control (if present). Alarms shall be

provided for High Return Air Humidity (If the return air humidity is greater than 70% (adj.))

and Low Return Air Humidity (If the return air humidity is less than 20% (adj.)).

S. Return Air Temperature: The controller shall monitor the return air temperature and use as

required for economizer control (if present). Alarms shall be provided for High Return Air

Temp (If the return air temperature is greater than 90°F (adj.)) and Low Return Air Temp (If

the return air temperature is less than 50°F (adj.)).

T. Supply Air Temperature: The controller shall monitor the supply air temperature. Alarms

shall be provided for High Supply Air Temp (If the supply air temperature is greater than 125°F

(adj.)) and Low Supply Air Temp (If the supply air temperature is less than 35°F (adj.)).

Hardware


Point Name AI A

O BI

B

O

A


Alar

m

Show On

Graphic

Zone Temp x x x

Zone Setpoint Adjust x x

Mixed Air Temp x x x

Return Air Humidity x x x

Return Air Temp x x x

Supply Air Temp x x x

Mixed Air Dampers x x x

Zone Override x x x

Supply Air Smoke Detector x x x x

Supply Fan Status x x x



Hardware


Point Name AI A

O BI

B

O

A


Alar

m

Show On

Graphic

Supply Fan Start/Stop x x x

Cooling Stage 1 x x x

Cooling Stage 2 x x x



Economizer Zone Temp Setpoint x x x

Dehumidification Setpoint x x x

Environmental Index x x

Percent of Time Satisfied x x

Emergency Shutdown x x x

Schedule x

Heating Setpoint x x

Cooling Setpoint x x

High Zone Temp x

Low Zone Temp x

Supply Fan Failure x

Supply Fan in Hand x

Supply Fan Runtime Exceeded x

Compressor Runtime Exceeded x

Final Filter Change Required x x

High Mixed Air Temp x

Low Mixed Air Temp x

High Return Air Humidity x

Low Return Air Humidity x

High Return Air Temp x

Low Return Air Temp x

High Supply Air Temp x

Low Supply Air Temp x

Totals 6 1 3 5 4 1 0 1 20 17 21


4.04 UNIT HEATER (TYPICAL):



A. Occupied Mode: The unit shall maintain a heating setpoint of 55°F (adj.).

B. Unoccupied Mode (night setback): Same as Occupied Mode.

C. Low Zone Temp Alarm: If the zone temperature is less than the heating setpoint by a user


D. The fan shall run anytime the zone temperature drops below heating setpoint, unless shutdown

on safeties.

E. The controller shall measure the zone temperature and stage the heating to maintain its heating

setpoint. To prevent short cycling, the stage shall have a user definable

(adj.) minimum runtime.

F. The heating shall be enabled whenever outside air temperature is less than 55°F (adj.) and the

zone temperature is below heating setpoint and the fan is on.

Hardware


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Zone Temp x x x

Fan Start/Stop x x x




Schedule x


Low Zone Temp x

Totals 1 0 0 2 2 0 0 1 6 1 4




4.05 CABINET HEATER (TYPICAL):

A. Occupied Mode: The unit shall maintain a heating setpoint of 65°F (adj.).


C. Low Zone Temp Alarm: If the zone temperature is less than the heating setpoint by a user


D. The fan shall run anytime the zone temperature is below heating setpoint, unless shutdown on

safeties.

E. The controller shall measure the zone temperature and stage the heating to maintain its heating

setpoint. To prevent short cycling, the stage shall have a user definable (adj.)

minimum runtime.

F. The heating shall be enabled whenever outside air temperature is less than 65°F (adj.) and the

zone temperature is below heating setpoint and the fan is on.

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Zone Temp x x x





Schedule x


Low Zone Temp x

Totals 1 0 0 2 2 0 0 1 6 1 4




4.06 ELECTRIC METER:

A. Electric Meter: The controller shall monitor the electric meter for electric consumption on a

continual basis. These values shall be made available to the system at all times.

B. Alarm shall be generated when sensor reading indicates an invalid value from the electric

meter.

C. Peak Demand History: The controller shall monitor and record the peak (high and low) demand

readings from the electric meter. Peak readings shall be recorded on a daily, month-to-date,

and year-to-date basis.

D. Usage History: The controller shall monitor and record electric meter readings so as to provide

a power consumption history. Usage readings shall be recorded on a daily, month-to-date, and

year-to-date basis.

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kW Meter x x

KW Demand x x

kW Peak Today x x

kW Peak Month-to-Date x x

kW Peak Year-to-Date x x

kWh Today x x

MWh Month-to-Date x x

MWh Year-to-Date x x

Meter Alarm x

Totals 1 0 0 0 0 0 0 0 7 1 8




4.07 GAS METER:

A. Gas Meter: The controller shall monitor the gas meter for gas consumption on a continual

basis. These values shall be made available to the system at all times.

B. Alarm shall be generated when sensor reading indicates an invalid value from the gas meter.

C. Peak Demand History: The controller shall monitor and record the peak (high and low) demand

readings from the gas meter. Peak readings shall be recorded on a daily, month-to-date, and

year-to-date basis.

D. Usage History: The controller shall monitor and record gas meter readings so as to provide a

gas consumption history. Usage readings shall be recorded on a daily, month-to-date, and year-

to-date basis.

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Gas Flow Rate x

Demand x x

Peak Today x x

Peak Month-to-Date x x

Peak Year-to-Date x x

Usage Today x x

Usage Month-to-Date x x

Usage Year-to-Date x x

Invalid Value x

Totals 1 0 0 0 0 0 0 0 7 1 7




4.08 OUTSIDE AIR SENSOR:

A. Outside Air Conditions: The controller shall monitor the outside air temperature and humidity

and calculate the outside air enthalpy on a continual basis. These values shall be made available

to the system at all times.

B. Alarm shall be generated when sensor reading indicates shorted or disconnected sensor. In the

event of a sensor failure, an alternate outside air conditions sensor shall be made available to

the system without interruption in sensor readings.

C. If an OA Temp Sensor cannot be read, a default value of 65°F will be used.

D. If an OA Humidity Sensor cannot be read, a default value of 50 % will be used.

E. Outside Air Temperature History: The controller shall monitor and record the high and low

temperature readings for the outside air. These readings shall be recorded on a daily, month-

to-date, and year-to-date basis.

F. Cooling Degree Day: The controller shall provide a Degree Day history index that reflects the

energy consumption for the facilities cooling demand. Computations shall use a mean daily

temperature of 65°F (adj.). The Degree Day peak value readings shall be recorded on a daily,

month-to-date, and year-to-date basis.

G. Heating Degree Day: The controller shall provide a Degree Day history index that reflects the

energy consumption for the facilities heating demand. Computations shall use a mean daily

temperature of 65°F (adj.). The Degree Day peak value readings shall be recorded on a daily,

month-to-date, and year-to-date basis.

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Outside Air Temp x x x

Outside Air Humidity x x x

Outside Air Temp (Alternate) x x

Outside Air Humidity (Alternate) x x

Outside Air Enthalpy x x x

High Temp Today x x

High Temp Month-to-Date x x

High Temp Year-to-Date x x

Low Temp Today x x

Low Temp Month-to-Date x x

Low Temp Year-to-Date x x

Sensor Failure x

Totals 2 0 0 0 3 0 0 0 11 1 9




4.09 EXHAUST FAN - ON/OFF (See Fan Schedule on plans):

A. Occupied Mode: The exhaust fan shall run continuously during Occupied Mode.

B. Unoccupied Mode: The exhaust fan shall be “off.”

C. The controller shall monitor the fan status.

D. Alarms shall be provided as follows:

1. Fan Failure: Commanded on, but the status is off.

2. Fan in Hand: Commanded off, but the status is on.

3. Fan Runtime Exceeded: Fan status runtime exceeds a user definable limit (adj.).

Hardware


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Fan Status x x x


Fan Failure x

Fan in Hand x

Fan Runtime Exceeded x

Totals 0 0 1 1 0 0 0 0 2 3 2




4.10 EXHAUST FAN – TEMPERATURE CONTROL (See Fan Schedule on plans):

A. Occupied Mode: The unit shall maintain a zone temperature setpoint of 85°F (adj.).


C. The fan shall run anytime the zone temperature rises above setpoint, unless shutdown on

safeties. The fan speeds shall be indexed as follows:

D. Low speed shall run anytime the zone temperature rises above setpoint.

E. High speed shall run anytime the zone temperature rises further above setpoint by a user


F. The controller shall monitor the fan status.

G. Alarms shall be provided as follows:

1. High Zone temperature.

2. Fan Failure: Commanded on, but the status is off.

3. Fan in Hand: Commanded off, but the status is on.

4. Fan Runtime Exceeded: Fan status runtime exceeds a user definable limit (adj.).

Hardware


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Zone Temp x x x

Fan Status x x x

Fan Low Speed x x x

Fan High Speed x x x

Setpoint x x x



Schedule x

High Zone Temp x

Fan Failure x

Fan in Hand x

Fan Runtime Exceeded x

Totals 1 0 1 2 3 0 0 1 7 4 5



215-14 23 9110 - 1 MECHANICAL SOUND, VIBRATION, WIND AND SEISMIC CONTROL

SECTION 23 9110

MECHANICAL SOUND, VIBRATION, WIND AND SEISMIC CONTROL

PART 1 - GENERAL

1.1 SCOPE OF WORK:

A. Furnish all labor, materials, tools and equipment and perform all work necessary to complete

the installation of the systems required by these specifications and as detailed on the

drawings.

B. All foundations and supports required for the installation of Division 23 equipment shall be

furnished by the Division 23 contractor shall unless specifically specified otherwise.

C. The following criteria applies to all mechanical systems and components:

1. Wind Pressure Velocity: 110 MPH

2. Seismic Design Category: C

3. Importance Factor: 1.0

D. Based on the criteria listed above, no seismic restraints are required.


A. The drawings and general provisions of this division of the Contract, including the General

and Special Conditions and Division 1 Specifications, apply to this Section.


A. Codes and Standards: The installation of the mechanical systems shall be installed in

accordance with the following codes and standards:

1. 2012 International Building Code (IBC)

2. ASHRAE

B. The mechanical sound, vibration and wind control equipment and products shall be sized and

provided by one of the manufacturers listed below.

C. Kinetics Noise Control is the Basis of Design manufacturer. Equivalent equipment by

AeroSonics, Mason, MGM Products, Vibration Eliminator, Vibro-Acoustics and Vibration

Mountings and Controls that meets performance, capacity, space and other requirements of

the design documents shall be acceptable.

D. The manufacturer and/or his representative shall select all vibration isolation products in-

accordance with the Vibration Isolation Schedule listed in these specifications. All products

shall provide the specified deflection as indicated based on the actual equipment weights and

installation requirements of the approved equipment. The manufacturer shall provide

installation instructions for all provided isolators, wind restraints and bracing. Locations of

vibration isolation products shall be coordinated with equipment details shown on the

drawings and also as specified in these specifications for maximum support locations for

piping and other equipment.



E. Submittals:

1. The contractor shall submit for approval by the engineer all products intended to be used

to meet the requirements of these specifications. Submittal data shall include a proposed

schedule for vibration isolation products, manufacturer’s data and cut sheets of the

specific vibration isolation or sound barrier materials. Proposed vibration isolation

schedule shall list all equipment specified to be isolated, the equipment weight, proposed

isolator type or base type, number of isolators required, spring or isolator color, and

deflection of the spring or vibration isolator based on the equipment weight.

2. The contractor shall submit for approval by the engineer, wind anchorage requirements

for all equipment and curbs. Anchorage calculations shall be prepared by a registered

engineer in the state where the project will be constructed. The engineer shall stamp

calculations. Wind anchorage requirements shall be submitted for all curb mounted

equipment and roof mounted equipment. Fasteners shall be selected and detailed for curb

connections to the building structure and also for equipment connections to the curb.

Calculations shall be based on the approved equipment for the project.

PART 2 - PRODUCTS

2.1 GENERAL:

A. All equipment shall be mounted or suspended from approved foundations and supports as

specified herein or as detailed on the drawings.

B. The vibration isolation products and systems shall have a deflection as recommended by the

manufacturer but not less than the deflection indicated in the Vibration Isolation Schedule.

2.2 ISOLATOR TYPES:

A. Type 2 - Floor Mounted Equipment: Vibration isolators shall be neoprene, molded from oil-

resistant compounds. Isolators shall consist of two layers of neoprene material. Top and

bottom surfaces of each layer shall have molded ribs. Each layer shall be separated by a 16

gauge galvanized steel load plate bonded to each neoprene layer to form a sandwich

arrangement. Vibration isolator size shall be coordinated with the equipment supports.

Minimum size shall be 2”x2”.

B. Type 4 - Floor-Mounted Equipment: Vibration isolators shall be free standing, un-housed,

laterally stable springs wound from high strength spring steel. Springs shall have a lateral

stiffness greater than 0.8 times the rated vertical stiffness and shall be designed to provide up

to 50% overload capacity. Springs shall be selected to provide operating static deflections

shown on the Vibration Isolation Schedule or as indicated on the project documents. Springs

shall be color coded or otherwise identified to indicate load capacity. In capacities up to 5,000

lbs., springs shall be replaceable. In capacities over 5,000 lbs., springs shall be welded to the

top and bottom load plate assemblies. Springs shall be assembled between a top and bottom

steel load plate. The upper load plate shall be provided with steel leveling bolt lock nut and

washer for attachment to the supported equipment. The lower load plate shall have a non-skid

noise isolation pad bonded to the bottom and have provisions for bolting the isolator to the

supporting structure.



C. Type 10 - Suspended Equipment, Piping and Ductwork: Vibration Isolators shall consist of a

steel spring and neoprene element in series mounted in a stamped or welded steel bracket for

insertion into the hanger rod assembly. The elastomer insert shall be neoprene, molded from

oil resistant compounds and shall be color coded to indicate load capacity and selected to

operate within its published load range. The steel spring shall consist of large diameter

laterally stable steel springs assembled into formed or welded steel housing assemblies

designed to limit movement. Springs shall have a lateral stiffness greater than 0.8 times the

rated vertical stiffness and shall be designed to provide up to 50% overload capacity. The

steel bracket shall be fabricated from steel and provided with a corrosion resistance finished.

The hanger bracket shall be designed to carry a 500% overload without failure and to allow a

support rod misalignment through a 30-degree arc without metal-to-metal contact or other

short circuit. The hanger bracket shall incorporate spring caps with indexed steps, which

correspond to the washer diameter of the hanger rod to keep the rod centered in the spring

cap.

2.3 BASES, RAILS AND CURBS:

A. Type C - Roof Mounted Equipment Vibration Isolation Rails: Vibration isolation rails shall

be extruded aluminum or G90 galvanized steel consisting of a lower support rail, upper

support rail, steel springs located between the support rails and a continuous weatherproof

seal located between the upper and lower support rails. Vibration isolation rails shall be

fabricated and designed to be installed and secured on top of the equipment manufacturer’s

roof curb. Isolation rails shall provide continuous support for the roof-mounted equipment.

Isolation rails shall be designed and engineered to provide isolation against casing radiated

vibration and structure born vibration from rotating equipment. The steel springs shall

consist of large diameter laterally stable steel springs that have a lateral stiffness greater than

1.0 times the rated vertical stiffness and shall be designed to provide up to 50% overload

capacity. Isolation rails shall have seismic restraints fabricated and attached to the isolation

rail assembly to resist the horizontal forces. Seismic restraints shall be certified by the

manufacturer and stamped by a registered engineer. Isolation rail assemblies shall include

supply and return duct block-outs as an integral part of the isolation rail assembly. Springs

must be removable and adjustable without disturbing the roof while equipment is in place.

2.4 SOUND CONTROL PRODUCTS:

A. Duct Sound Attenuators:

1. Attenuators shall be double wall construction with the outer shell being fabricated from

22 gage galvanized steel and the inner shell fabricated from 24 gauge perforated

galvanized steel. Interior steel partitions shall be double wall construction fabricated

from 24 gauge perforated galvanized steel.

2. Acoustic fill material shall be installed between the inner and outer shell and also in the

interior partitions. Acoustic fill shall be fiberglass.

3. Duct sound attenuators shall meet the fire hazard classification ratings in accordance with

ASTM-E84. Fire hazard ratings shall be a flame spread of 25 and smoke development of

20.

B. Acoustical Sound Barrier:

1. Acoustic Sound Barrier shall be constructed of vinyl material with a reinforced fiberglass

screen loaded with barium sulfate, 1.0 lb/sf. Tensile strength shall be 300 lb/inch and tear



strength shall be 100 lbs/inch.

C. Acoustical Duct Wrap Barrier:

1. Acoustic Duct Wrap Barrier shall be fabricated of a composite material consisting of an

acoustic barrier material bonded to a thin layer of aluminum foil on one side and a

decoupling layer of fiberglass batting material. Acoustic Barrier material shall be 0.10”

thick barium sulphate loaded limp vinyl with “K” value of 0.29, STC rating of 28 and

nominal density of 1.0 lb/sf.

2.5 VIBRATION ISOLATION SCHEDULE FOR MECHANICAL SYSTEMS:

Equipment Type Isolator Type Base Type Deflection

In-line Suspended Fans Type 10 None 1.0”

Rooftop Air Conditioners Type 4 Type C 2.0”

Kitchen Hood Makeup Air Unit Type 4 Type C 2.0”

Energy Recovery Ventilators Type 4 Type C 2.0”

VRF Heat Pumps: Type 4 Structure 1.0”

Ductless Heat Pumps: Type 2 Curb 0.25”

PART 3 - EXECUTION

3.1 GENERAL:

A. If the equipment provided is not furnished with integral structural steel supports, mounting

feet or lifting lugs, the contractor shall provide miscellaneous steel shapes as required to

install or suspend the equipment and attach the vibration isolation as specified herein.

B. Support steel shall include but not be limited to rails, brackets, angles, channels, and similar

components.

C. All equipment specified to be isolated shall be installed and isolators shall be attached to the

building structure or floor and the vibration isolators shall be adjusted and leveled so that the

vibration isolators are performing properly.

D. All vibration isolation products and sound control products shall be installed as outlined in

the manufacturer’s printed installation instructions.

E. For equipment scheduled to receive external vibration isolation, all factory-installed internal

vibration isolation shall be locked down.



215-14 23 9210 - 1 MECHANICAL TESTING, ADJUSTING, BALANCING

SECTION 23 9210

MECHANICAL TESTING, ADJUSTING, BALANCING

PART 1 - GENERAL





A. General: An independent test agency shall perform the TAB work as described herein. The

agency shall have a minimum of 3 years of successful TAB experience on projects of similar

size and scope. The name of the test agency and proof of satisfactory performance on 5

previous projects in the form of projects referenced shall be submitted to the Architect for

approval within 30 days after receipt of the construction contract.

B. Test Agency: A firm with membership in the Associated Air Balance Council (AABC) or

certified by the National Environmental Balancing Bureau (NEBB) in those testing and

balancing disciplines similar to those required for this project, who is not the Installer of the

system to be tested, and is otherwise independent of the project.

C. Compliance: Comply with AABC standards or NEBB's Procedural Standards for

Testing-Adjusting-Balancing of Environmental Systems as applicable to mechanical air

systems and associated equipment apparatus.

D. Industry Standards: Comply with ASHRAE (American Society for Heating, Refrigeration

and Air Conditioning Engineers, Inc.) recommendations pertaining to measurements,

instruments, and testing, adjusting, and balancing except as otherwise indicated.

1.3 SUBMITTALS:

A. Submit 5 copies of a certified test report signed by the TAB supervisor who performed the

TAB work. Test reports shall be submitted prior to the final inspection of mechanical work.

B. Include identification and types of instruments used and their most recent calibration date

with submission of final test report.

C. In addition to Air Balance and operational data required to be submitted, the report shall

include any observation of unusual noise or vibration observed and any malfunction of

adjustable devices encountered during the TAB work.

1.4 JOB CONDITIONS:

A. Do not proceed with testing, adjusting and balancing work until the work to be TAB'ed has

been completed and is operable. Do not proceed until work scheduled for TAB'ing is clean

and free from debris, dirt, and discarded building materials.

PART 2 - PRODUCTS


215-14 23 9210 - 2 MECHANICAL TESTING, ADJUSTING, BALANCING

2.1 PATCHING MATERIALS:

A. Except as otherwise indicated, use the same products as used by original Installer for patching

holes in insulation, ductwork and housing which may have been cut or drilled for test

purposes, including access for test instruments, attaching jigs and similar purposes.

2.2 TEST INSTRUMENTS:

A. Utilize test instruments and equipment for the TAB work required, of the type, precision and

capacity as recommended in AABC standards or NEBB's Procedural Standards for

Testing-Adjusting-Balancing of Environmental Systems.

PART 3 - EXECUTION

3.1 TESTING:

A. Tester must examine the installed work and conditions under which testing is to be done to

ensure that work has been completed, cleaned and is operable. Notify the Contractor in

writing of conditions detrimental to the proper completion of the test-adjusting-balancing

work. Do not proceed with the TAB work until unsatisfactory conditions have been corrected

in a manner acceptable to Tester.

B. Test, adjust, and balance mechanical air systems. At a minimum, the report shall document

the following:

1. CFM for all diffusers, grilles and registers.

2. CFM for all HVAC equipment.

3. Entering air / leaving air temperatures (DB/WB) for all cooling coils.

4. Calculated cooling coil capacities.

5. Entering air / leaving air temperatures for all heating coils.

6. Calculated heating coil capacities.

C. Airflows shown on drawings are provided as a guide to achieve uniform room temperature

throughout the building. Field correct as required to suite room condition. Any substantial

alteration shall be called to the engineer's attention.

D. Prepare a report of test results, including instrumentation calibration reports, in the form

recommended by the applicable standards.

E. Patch holes in insulation, ductwork and housing, which have been cut or drilled for test

purposes, in a manner recommended by the original Installer.

F. Mark equipment settings, including manual damper control positions, and similar controls

and devices, to show final settings at completion of TAB work. Provide marking with paint

or other suitable permanent identification materials.



215-14 23 9310-1 MECHANICAL COMMISSIONING

SECTION 23 9310

MECHANICAL COMMISSIONING

PART 1 - GENERAL


A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and other Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY:

A. This Section includes general requirements that apply to implementation of commissioning.

B. All HVAC systems shall be commissioned in their entirety.

1.3 DEFINITIONS:

A. CxA: Commissioning Authority. The designated person that plans, schedules, and

coordinates the commissioning team to implement the commissioning process.

B. Systems, Subsystems, and Equipment: Where these terms are used together or separately,

they shall mean "as-built" systems, subsystems, and equipment.

C. TAB: Testing, Adjusting and Balancing.

1.4 COMMISSIONING TASKS:

A. Develop and implement a Commissioning Plan.

B. Verify installation and performance of commissioned systems.

C. Verify that training requirements are completed.

D. Complete a summary Commissioning Report.

1.5 COMMISSIONING TEAM:

A. Commissioning Authority: The CxA will be a mechanical engineer certified CxA employed

by Dulohery Weeks but not a member of the design team for this project. There is no

additional cost for this service.

B. Members Appointed by Contractor: Individuals, each having authority to act on behalf of the

entity he or she represents, explicitly organized to implement the commissioning process

through coordinated actions. The commissioning team shall consist of, but not be limited to,

representatives of the Contractor, including project superintendent, mechanical contractor,

TAB contractor and controls contractor.

1.6 CONTRACTOR RESPONSIBILITIES:

A. Provide utility services required for the commissioning process.


215-14 23 9310-2 MECHANICAL COMMISSIONING

B. The Contractor shall assign representatives with expertise and authority to act on behalf of

the Contractor and schedule them to participate in and perform commissioning team activities

including, but not limited to, the following:

1. Schedule the Commissioning Kickoff Meeting with Dulohery Weeks near midpoint of

construction (prior to HVAC equipment start-up).

2. Participate in construction-phase coordination meetings.

3. Document that work is complete and systems are operational according to the Contract

Documents, including calibration of instrumentation and controls.

4. Complete Pre-Functional Performance Checklists and submit to CxA for review.

5. Participate in Functional Performance Testing by providing personnel to operate

equipment/controls and TAB contractor to verify measurements.

6. Provide technicians who are familiar with the construction and operation of installed

systems and who shall participate in testing of installed systems, subsystems, and

equipment.

7. Evaluate performance deficiencies identified in test reports and, in collaboration with

entity responsible for system and equipment installation, recommend corrective action.

1.7 CxA RESPONSIBILITIES:

A. Organize and lead the commissioning team.

B. Prepare a construction-phase Commissioning Plan. Collaborate with the Contractor to

develop test and review procedures. Include design changes and scheduled commissioning

activities coordinated with overall Project schedule. Identify commissioning team member

responsibilities for performance of each commissioning task.

C. At the beginning of the construction phase, conduct a Commissioning Kickoff Meeting for

the purpose of reviewing the commissioning activities and establishing tentative schedules.

D. Prepare project-specific Pre-Functional Performance Checklists for commissioned

equipment. Initial completion of these checklists will be by the Contractor.

E. Conduct field visits as needed to review the installation for conformance with the design

documents prior to functional performance testing.

F. Review the completion of the Pre-Functional Construction Checklists. The contractor will be

responsible for completing the Pre-Functional Performance Test Checklists and will submit

to the CxA for review.

G. Schedule, direct, witness, and document Functional Performance Tests with the Contractor

providing personnel to operate equipment and controls. Note these findings in the Issues Log.

H. Issue Commissioning Issues Log and deficiency lists from field visits.

I. Issue a final Commissioning Report describing the results of the commissioning process and

action items requiring further attention.
