M 601 008 003 Specifications

8/6/2019 M 601 008 003 Specifications

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PROJECT MANUAL

FOR

HEATING SYSTEM REPLACEMENT AT BUILDING E-4081EDGEWOOD HANGER

AT

ABERDEEN PROVING GROUNDS

FOR THE

MARYLAND DEPARTMENT OF GENERAL SERVICES301 WEST PRESTON STREET

BALTIMORE, MARYLAND 21201

May 29, 2009STATE OF MARYLAND

Department of General Services Board of public worksAlvin C. Collins, Secretary Martin O’Malley, Governor301 West Preston Street Peter Franchot, Comptroller

Baltimore, Maryland 21201 Nancy K. Kopp, Treasurer

“Minority Business Enterprises are Encouragedto Respond to this Solicitation Notice”

Project Cost Classification B

Project no. M-601-008-003

Mechanical/Electrical EngineerSidhu Associates, Inc.



Heating System Replacement at Building E-4081 PROFESSIONAL CERTIFICATION Section 00011 - Page 1

Heating System Replacement at Building E-4081

MECHANICAL/ ELECTRICAL ENGINEERSSidhu Associates, Inc.Executive Plaza III, Suite 1000

11350 McCormick RoadHunt Valley, Maryland 21031Seal/Signature




TABLE OF CONTENTS

DIVISION 0 – PROCUREMENT & CONTRACTING REQUIREMENTS

- Notice To Bidders - Solicitation Fact Sheet (eMarylandMarketplace attachment)- Instructions to Bidders for Construction Projects (March 2007) (eMarylandMarketplace

attachment)- General Conditions for Construction Contracts (March 2007) (eMarylandMarketplace

attachment)- Bid Proposal Affidavit (eMarylandMarketplace attachment)- Contract Affidavit (eMarylandMarketplace attachment)- Qualification Questionnaire- Bid Bond, if applicable (eMarylandMarketplace attachment)- Minority Business Enterprise Utilization Procedures (March 2007)

(eMarylandMarketplace attachment)- MBE Forms (DGS-MBE 01A & DGS-MBE 03C) (eMarylandMarketplace attachment)- List of Prevailing Wage Rates, if applicable - Addenda , if any (eMarylandMarketplace attachment)- List of Drawings

DIVISION 1 – GENERAL REQUIREMENTS

PAGES01100 SUMMARY 1 - 301700 EXECUTION REQUIREMENTS 1 - 601732 SELECTIVE DEMOLITION 1 - 4

DIVISION 2 – SITE CONSTRUCTION

NOT USED

DIVISION 3 - CONCRETE

NOT USED




DIVISION 5 - METALS

NOT USED

DIVISION 6 - WOOD AND PLASTICS

NOT USED

DIVISION 7 - THERMAL AND MOISTURE PROTECTION

NOT USED

DIVISION 8 - DOORS AND WINDOWS

NOT USED

DIVISION 9 - FINISHES

NOT USED

DIVISION 10 - SPECIALTIESNOT USED

DIVISION 11 - EQUIPMENT

NOT USED

DIVISION 12 - FURNISHINGS

NOT USED




DIVISION 14 - CONVEYING SYSTEMS

NOT USED

DIVISION 15 – ARCHITECTURAL

10200 LOUVERS AND VENTS 1 - 4

DIVISION 15 – MECHANICAL

15050 COMMON WORK RESULTS FOR HVAC 1 - 615062 HANGERS AND SUPPORTS FOR HVAC PIPING

AND EQUIPMENT 1 - 615077 IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT 1 - 215085 HVAC INSULATION 1 - 915112 GENERAL-DUTY VALVES FOR HVAC PIPING 1 - 615127 METERS AND GAGES FOR HVAC PIPING 1 - 315181 HYDRONIC PIPING 1 - 915185 HYDRONIC PUMPS 1 - 615192 FACILITY FUEL-OIL PIPING 1 - 815512 CAST IRON BOILERS 1 - 715550 BREECHINGS, CHIMNEYS, AND STACKS 1 - 315762 UNIT HEATERS 1 - 315763 FAN-COIL UNITS 1 - 515768 UNIT VENTILATOR 1 - 715815 METAL DUCTS 1 - 315900 INSTRUMENTATION AND CONTROL FOR HVAC 1 - 1515940 SEQUENCE OF OPERATION 1 - 515950 TESTING, ADJUSTING, AND BALANCING FOR HVAC 1 - 8

CABINET UNIT HEATER POINT LIST 1 - 1

FAN COIL UNIT POINT LIST 1 - 1HEATING PLANT POINT LIST 1 - 1UNIT VENTILATOR POINT LIST 1 - 1

DIVISION 16 – ELECTRICAL




16443 MOTOR CONTROL CENTERS 1 - 5

LIST OF DRAWINGS

C-1 COVER SHEET, DRAWIG INDEX AND MAPM-1 LEGEND, ABBREVIATIONS AND NOTESM-2 FIRST FLOOR PARTIAL PLAN-A DEMOLITIONM-3 FIRST FLOOR PARTIAL PLAN-B DEMOLITIONM-4 FIRST FLOOR PARTIAL PLAN BOILER ROOM-DEMOLITIONM-5 FIRST FLOOR PARTIAL PLAN-A NEW WORKM-6 FIRST FLOOR PARTIAL PLAN-B NEW WORKM-7 FIRST FLOOR PARTIAL PLAN BOILER ROOM - NEW WORKM-8 EQUIPMENT SCHEDULESM-9 DETAILS AND CONTROL SCHEMATICSM-10 DETAILS AND CONTROL SCHEMATICSE-1 ELECTRICAL PARTIAL PLAN HEATING/ELECTRICAL ROOME-2 ELECTRICAL SCHEDULES



PREVAILING WAGE INSTRUCTIONS FOR THE CONTRACTOR

The contractor shall submit TWO complete copies of his payroll records and the payroll records of each of hissubcontractors-one copy to the Contracting Officer and ONE to the Commissioner of Labor & Industry,Prevailing Wage Unit, 1100 N. Eutaw Street, Room 607, Baltimore, Maryland 21201, where they will beavailable for inspection during business hours. These payroll records must be submitted within 14 calendardays after the end of each payroll period and shall contain the following information: Contractor's name,address & telephone number; location and project number of the job; Employees name, address, social securitynumber, exact and specific work classification, hours-straight time and overtime-worked each day, total hours-straight time and overtime-worked rate of pay and gross wages earned. Employee's address may be droppedafter it has been reported one time. Payrolls shall be submitted on U.S. Department of Labor Wage and HourPublic Contracts Division Payroll Form WH-347 or its equivalent and contain only information relevant to the

job and be serially numbered starting with payroll number one.

The contractor shall be responsible for submission of all subcontractors' payroll records covering work performed directly at the work site. Each copy of the payroll records shall be accompanied by a statementsigned by the contractor or the subcontractor, indicating that the wage rates contained therein are not less thanthose established by the Commissioner as set forth in the contract, that the classification set forth for eachworker or apprentice conforms with the work performed, and that the contractor or subcontractor, as the case

may be, has complied with the provisions of the law.A contractor or subcontractor may make deductions that are (1) required by law; (2) required by a collectivebargaining agreement between a bona fide labor organization and the contractor or subcontractor; or (3)contained in written agreement between an employee and an employer undertaken at the beginning of employment, if the agreement is submitted by the employer to the public body awarding the public work and isapproved by the public body as fair and reasonable.

If the contractor is delinquent in submitting payroll records, processing of partial payment estimates may beheld in abeyance pending receipt of the records. In addition, if the contractor is delinquent in submitting thepayroll records, the contractor shall be liable to the contracting public body for liquidated damages. Theliquidated damages shall constitute the sum of $10.00 for each calendar day that the records are late.

Only apprentices REGISTERED WITH THE MARYLAND APPRENTICESHIP AND TRAININGCOUNCIL shall be employed on Prevailing Wage Projects. Apprentices shall be paid a percentage of thedetermined journey person's wage for the specific craft.

Overtime rates shall be paid by the general contractors and subcontractors under its contracts and agreementswith their employees, which in no event shall be less than time and one-half the prevailing hourly rate of wagesfor all hours worked in excess of ten (10) hours in any one calendar day; in excess of forty (40) hours perworkweek; and work performed on Sundays and legal holidays.





STATE OF MARYLAND DEPARTMENT OF LABOR, LICENSING AND REGULATION

DIVISION OF LABOR AND INDUSTRYPREVAILING WAGE SECTION 1100 N. Eutaw Street, Room 607

Baltimore, Maryland 21201(410) 767-2342

The wage rates to be paid laborers and mechanics on the contractdescribed below is announced by order of the Commissioner of Labor andIndustry.

It is mandatory upon the successful bidder and any subcontractor underhim, to pay not less than the specific rates to all workers employed by themin execution of this contract. Reference: Annotated Code of Maryland StateFinance and Procurement, Section 17-201 thru 17-226 inclusive.

These rates were taken from the locality determination dated February22, 2007 for Harford County, issued pursuant to the Commissioner's authorityunder State Finance and Procurement Article Section 17-209, Annotated Code ofMaryland.

Kenneth Langkam, Project Manager March 25, 2009(Name and Title of Requesting Officer) (Date of Issue)

Department of General Services 301 W. Preston St Baltimore, MD 21201 (Department, Agency or Bureau) (Address)

Harford County: Heating System Replacement @ Bldg E-4081, Edgewood Hanger(Location and Description of work)

Project No.: M-590-090-001-------------------------------------------------------------------------

| BASIC | FRINGE |CLASSIFICATION | HOURLY | BENEFIT |

| RATE | PAYMENTS |-----------------------------------------------------------------------|BOILERMAKER | $32.06 | $17.71 |CEMENT MASON-FINISHER | $22.40 | $8.11 |ELECTRICIAN | $28.75 | $12.95 |LABORER: |

COMMON OR UNSKILLED | $11.48 | |MASON TENDER | $11.48 | |

PLUMBER | $30 26 | $13 07 |



| RATE | PAYMENTS |-----------------------------------------------------------------------|POWER EQUIPMENT OPERATORS: |

BACKHOE | $18.48 | $6.97+a |BOBCAT | $12.44 | $6.57 |BULLDOZER | $17.85 | $6.97+a |CONCRETE PUMP | $19.24 | $6.79 |CRANE | $20.54 | $6.97+a |EXCAVATOR | $18.62 | $6.97+a |FORKLIFT | $18.48 | $6.97+a |LOADER | $18.75 | $6.57 |GRADALL | $21.50 | $8.90+a |GRADER | $20.50 | $8.90+a |ROLLER | $19.75 | $6.57 |

a. PAID HOLIDAYS: New Years Day, Memorial Day, July 4th, Labor Day,Veteran's Day, Thanksgiving Day, & Christmas Day.




SECTION 01100 - SUMMARY

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and SupplementaryConditions and other Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes:1. Work covered by Contract Documents.2. Coordination with occupants.3. Work restrictions.4. Specification and drawing conventions.

1.3 WORK COVERED BY CONTRACT DOCUMENTS

A. The Work of the Project is defined by the Contract Documents and consists of the following:

1. Replacement of boilers, pumps, and associated equipment in mechanical room.Replacement of fan-coil units. Replacement of control system.

B. Type of Contract

1. Project will be constructed under a single prime contract.

1.4 COORDINATION WITH OCCUPANTS

A. Full Owner Occupancy: Owner will occupy site and existing building(s) during entire

construction period. Cooperate with Owner during construction operations to minimizeconflicts and facilitate Owner usage. Perform the Work so as not to interfere with Owner's day-to-day operations. Maintain existing exits unless otherwise indicated.

1. Maintain access to existing walkways, corridors, and other adjacent occupied or usedfacilities. Do not close or obstruct walkways, corridors, or other occupied or usedfacilities without written permission from Owner and approval of authorities having




1. Comply with limitations on use of public streets and other requirements of authoritieshaving jurisdiction.

B. Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by Owner orothers unless permitted under the following conditions and then only after providing temporaryutility services according to requirements indicated:

1. Notify Owner not less than two days in advance of proposed utility interruptions.2. Obtain Owner's written permission before proceeding with utility interruptions.

C. Noise, Vibration, and Odors: Coordinate operations that may result in high levels of noise and

vibration, odors, or other disruption to Owner occupancy with Owner.

1. Notify Owner not less than two days in advance of proposed disruptive operations.2. Obtain Owner's written permission before proceeding with disruptive operations.

D. Nonsmoking Building: Smoking is not permitted within the building or within 25 feet (8 m) of entrances, operable windows, or outdoor air intakes.

E. Controlled Substances: Use of tobacco products and other controlled substances within theexisting building is not permitted.

1.6 SPECIFICATION AND DRAWING CONVENTIONS

A. Specification Content: The Specifications use certain conventions for the style of language andthe intended meaning of certain terms, words, and phrases when used in particular situations.These conventions are as follows:

1. Imperative mood and streamlined language are generally used in the Specifications. Thewords "shall," "shall be," or "shall comply with," depending on the context, are impliedwhere a colon (:) is used within a sentence or phrase.

2. Specification requirements are to be performed by Contractor unless specifically statedotherwise.

B. Division 1 General Requirements: Requirements of Sections in Division 1 apply to the Work of all Sections in the Specifications.

C. Drawing Coordination: Requirements for materials and products identified on the Drawings aredescribed in detail in the Specifications. One or more of the following are used on theDrawings to identify materials and products:

1. Terminology: Materials and products are identified by the typical generic terms used inh i di id l S ifi i S i




PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION 01100




SECTION 01700 - EXECUTION REQUIREMENTS

PART 1 - GENERAL



1.2 SUMMARY

A. Section includes general administrative and procedural requirements governing execution of theWork including, but not limited to, the following:1. Installation of the Work.2. Cutting and patching.3. Progress cleaning.

4. Starting and adjusting.5. Protection of installed construction.6. Correction of the Work.

B. Related Sections:1. Division 1 Section "Selective Demolition" for demolition and removal of selected

portions of the building.

1.3 DEFINITIONS

A. Cutting: Removal of in-place construction necessary to permit installation or performance of other work.

B. Patching: Fitting and repair work required to restore construction to original conditions afterinstallation of other work.

PART 2 - PRODUCTS

2.1 MATERIALS

A General: Comply with requirements specified in other Sections




PART 3 - EXECUTION

3.1 PREPARATION

A. Field Measurements: Take field measurements as required to fit the Work properly. Recheck measurements before installing each product. Where portions of the Work are indicated to fit toother construction, verify dimensions of other construction by field measurements beforefabrication. Coordinate fabrication schedule with construction progress to avoid delaying theWork.

B. Space Requirements: Verify space requirements and dimensions of items showndiagrammatically on Drawings.

C. Review of Contract Documents and Field Conditions: Immediately on discovery of the need forclarification of the Contract Documents caused by differing field conditions outside the controlof the Contractor,

D. Surface and Substrate Preparation: Comply with manufacturer's recommendations forpreparation of substrates to receive subsequent work.

3.2 INSTALLATION

A. General: Locate the Work and components of the Work accurately, in correct alignment andelevation, as indicated.

1. Make vertical work plumb and make horizontal work level.2. Where space is limited, install components to maximize space available for maintenance

and ease of removal for replacement.3. Conceal pipes, ducts, and wiring in finished areas, unless otherwise indicated.4. Maintain minimum headroom clearance of 96 inches (2440 mm) in occupied spaces and

90 inches (2300 mm) in unoccupied spaces.

B. Comply with manufacturer's written instructions and recommendations for installing products inapplications indicated.

C. Install products at the time and under conditions that will ensure the best possible results.Maintain conditions required for product performance until Substantial Completion.

D. Conduct construction operations so no part of the Work is subjected to damaging operations orloading in excess of that expected during normal conditions of occupancy.

E T l d E i D l i h d h f l i l l




2. Allow for building movement, including thermal expansion and contraction.3. Coordinate installation of anchorages. Furnish setting drawings, templates, and

directions for installing anchorages, including sleeves, concrete inserts, anchor bolts, anditems with integral anchors, that are to be embedded in concrete or masonry. Deliversuch items to Project site in time for installation.

G. Joints: Make joints of uniform width. Where joint locations in exposed work are not indicated,arrange joints for the best visual effect. Fit exposed connections together to form hairline joints.

H. Hazardous Materials: Use products, cleaners, and installation materials that are not consideredhazardous.

3.3 CUTTING AND PATCHING

A. Cutting and Patching, General: Employ skilled workers to perform cutting and patching.Proceed with cutting and patching at the earliest feasible time, and complete without delay.

1. Cut in-place construction to provide for installation of other components or performanceof other construction, and subsequently patch as required to restore surfaces to theiroriginal condition.

B. Temporary Support: Provide temporary support of work to be cut.

C. Protection: Protect in-place construction during cutting and patching to prevent damage.Provide protection from adverse weather conditions for portions of Project that might beexposed during cutting and patching operations.

D. Adjacent Occupied Areas: Where interference with use of adjoining areas or interruption of free passage to adjoining areas is unavoidable, coordinate cutting and patching in accordancewith requirements of Division 1 Section "Summary."

E. Existing Utility Services and Mechanical/Electrical Systems: Where existing services/systemsare required to be removed, relocated, or abandoned, bypass such services/systems beforecutting to minimize interruption to occupied areas.

F. Cutting: Cut in-place construction by sawing, drilling, breaking, chipping, grinding, and similar

operations, including excavation, using methods least likely to damage elements retained oradjoining construction. If possible, review proposed procedures with original Installer; complywith original Installer's written recommendations.

1. In general, use hand or small power tools designed for sawing and grinding, nothammering and chopping. Cut holes and slots neatly to minimum size required, and with

f f




6. Proceed with patching after construction operations requiring cutting are complete.

G. Patching: Patch construction by filling, repairing, refinishing, closing up, and similar operationsfollowing performance of other work. Patch with durable seams that are as invisible aspracticable. Provide materials and comply with installation requirements specified in otherSections, where applicable.

1. Inspection: Where feasible, test and inspect patched areas after completion todemonstrate physical integrity of installation.

2. Exposed Finishes: Restore exposed finishes of patched areas and extend finishrestoration into retained adjoining construction in a manner that will minimize evidence

of patching and refinishing.

a. Clean piping, conduit, and similar features before applying paint or other finishingmaterials.

b. Restore damaged pipe covering to its original condition.

3. Floors and Walls: Where walls or partitions that are removed extend one finished areainto another, patch and repair floor and wall surfaces in the new space. Provide an evensurface of uniform finish, color, texture, and appearance. Remove in-place floor and wallcoverings and replace with new materials, if necessary, to achieve uniform color andappearance.

a. Where patching occurs in a painted surface, prepare substrate and apply primer andintermediate paint coats appropriate for substrate over the patch, and apply finalpaint coat over entire unbroken surface containing the patch. Provide additionalcoats until patch blends with adjacent surfaces.

4.

Ceilings: Patch, repair, or rehang in-place ceilings as necessary to provide an even-planesurface of uniform appearance.5. Exterior Building Enclosure: Patch components in a manner that restores enclosure to a

weathertight condition.

H. Cleaning: Clean areas and spaces where cutting and patching are performed. Remove paint,mortar, oils, putty, and similar materials from adjacent finished surfaces.

3.4 PROGRESS CLEANING

A. General: Clean Project site and work areas daily, including common areas. Enforcerequirements strictly. Dispose of materials lawfully.

1. Comply with requirements in NFPA 241 for removal of combustible waste materials and




B. Site: Maintain Project site free of waste materials and debris.

C. Work Areas: Clean areas where work is in progress to the level of cleanliness necessary forproper execution of the Work.

1. Remove liquid spills promptly.2. Where dust would impair proper execution of the Work, broom-clean or vacuum the

entire work area, as appropriate.

D. Installed Work: Keep installed work clean. Clean installed surfaces according to writteninstructions of manufacturer or fabricator of product installed, using only cleaning materials

specifically recommended. If specific cleaning materials are not recommended, use cleaningmaterials that are not hazardous to health or property and that will not damage exposed surfaces.

E. Concealed Spaces: Remove debris from concealed spaces before enclosing the space.

F. Exposed Surfaces in Finished Areas: Clean exposed surfaces and protect as necessary to ensurefreedom from damage and deterioration at time of Substantial Completion.

G. Waste Disposal: Do not bury or burn waste materials on-site. Do not wash waste materialsdown sewers or into waterways.

H. During handling and installation, clean and protect construction in progress and adjoiningmaterials already in place. Apply protective covering where required to ensure protection fromdamage or deterioration at Substantial Completion.

I. Clean and provide maintenance on completed construction as frequently as necessary throughthe remainder of the construction period. Adjust and lubricate operable components to ensureoperability without damaging effects.

J. Limiting Exposures: Supervise construction operations to assure that no part of theconstruction, completed or in progress, is subject to harmful, dangerous, damaging, or otherwisedeleterious exposure during the construction period.

3.5 STARTING AND ADJUSTING

A. Coordinate startup and adjusting of equipment and operating components with requirements inDivision 1 Section "General Commissioning Requirements."

B. Start equipment and operating components to confirm proper operation. Removemalfunctioning units, replace with new units, and retest.

C Adj i f i Adj i f i




3.6 PROTECTION OF INSTALLED CONSTRUCTION

A. Provide final protection and maintain conditions that ensure installed Work is without damageor deterioration at time of Substantial Completion.

B. Comply with manufacturer's written instructions for temperature and relative humidity.

3.7 CORRECTION OF THE WORK

A. Repair or remove and replace defective construction. Restore damaged substrates and finishes.

1. Repairing includes replacing defective parts, refinishing damaged surfaces, touching upwith matching materials, and properly adjusting operating equipment.

B. Restore permanent facilities used during construction to their specified condition.

C. Remove and replace damaged surfaces that are exposed to view if surfaces cannot be repairedwithout visible evidence of repair.

D. Repair components that do not operate properly. Remove and replace operating componentsthat cannot be repaired.

E. Remove and replace chipped, scratched, and broken glass or reflective surfaces.





SECTION 01732 - SELECTIVE DEMOLITION

PART 1 - GENERAL



1.2 SUMMARY

A. This Section includes the following:1. Demolition and removal of selected site elements.2. Salvage of existing items to be reused or recycled.

B. Related Sections include the following:

1. Division 1 Section "Summary" for use of premises and Owner-occupancy requirements.2. Division 1 Section "Cutting and Patching" for cutting and patching procedures.

1.3 DEFINITIONS

A. Remove: Detach items from existing construction and legally dispose of them off-site, unlessindicated to be removed and salvaged or removed and reinstalled.

B. Remove and Reinstall: Detach items from existing construction, prepare them for reuse, andreinstall them where indicated.

C. Existing to Remain: Existing items of construction that are not to be removed and that are nototherwise indicated to be removed, removed and salvaged, or removed and reinstalled.

1.4 PROJECT CONDITIONS

A. Owner will occupy portions of building immediately adjacent to selective demolition area.Conduct selective demolition so Owner's operations will not be disrupted.

1. Comply with requirements specified in Division 1 Section "Summary."




1. If materials suspected of containing hazardous materials are encountered, do not disturb;immediately notify Engineer and Owner. Owner will remove hazardous materials undera separate contract.

E. Storage or sale of removed items or materials on-site is not permitted.

F. Utility Service: Maintain existing utilities indicated to remain in service and protect themagainst damage during selective demolition operations.

1. Maintain fire-protection facilities in service during selective demolition operations.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that utilities have been disconnected and capped.

B. Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required.

C. Inventory and record the condition of items to be removed and reinstalled and items to beremoved and salvaged.

D. When unanticipated mechanical, electrical, or structural elements that conflict with intendedfunction or design are encountered, investigate and measure the nature and extent of conflict.Promptly submit a written report to Engineer.

3.2 UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

A. Existing Services/Systems: Maintain services/systems indicated to remain and protect themagainst damage during selective demolition operations.

1. Comply with requirements for existing services/systems interruptions specified inDivision 1 Section "Summary."

3.3 PREPARATION




1. Provide protection to ensure safe passage of people around selective demolition area andto and from occupied portions of building.

2. Provide temporary weather protection, during interval between selective demolition of existing construction on exterior surfaces and new construction, to prevent water leakageand damage to structure and interior areas.

3. Protect walls, ceilings, floors, and other existing finish work that are to remain or that areexposed during selective demolition operations.

4. Cover and protect furniture, furnishings, and equipment that have not been removed.5. Comply with requirements for temporary enclosures, dust control, heating, and cooling

specified in Division 1 Section "Temporary Facilities and Controls."

3.4 SELECTIVE DEMOLITION, GENERAL

A. General: Demolish and remove existing construction only to the extent required by newconstruction and as indicated. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Proceed with selective demolition systematically, from higher to lower level. Completeselective demolition operations above each floor or tier before disturbing supportingmembers on the next lower level.

2. Neatly cut openings and holes plumb, square, and true to dimensions required. Usecutting methods least likely to damage construction to remain or adjoining construction.Use hand tools or small power tools designed for sawing or grinding, not hammering andchopping, to minimize disturbance of adjacent surfaces. Temporarily cover openings toremain.

3. Cut or drill from the exposed or finished side into concealed surfaces to avoid marringexisting finished surfaces.

4.

Do not use cutting torches until work area is cleared of flammable materials. Atconcealed spaces, such as duct and pipe interiors, verify condition and contents of hiddenspace before starting flame-cutting operations. Maintain portable fire-suppressiondevices during flame-cutting operations.

5. Maintain adequate ventilation when using cutting torches.6. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials and

promptly dispose of off-site.7. Remove structural framing members and lower to ground by method suitable to avoid

free fall and to prevent ground impact or dust generation.8. Locate selective demolition equipment and remove debris and materials so as not to

impose excessive loads on supporting walls, floors, or framing.9. Dispose of demolished items and materials promptly.

B. Removed and Reinstalled Items:




C. Existing Items to Remain: Protect construction indicated to remain against damage and soilingduring selective demolition. When permitted by Engineer, items may be removed to a suitable,protected storage location during selective demolition and reinstalled in their original locationsafter selective demolition operations are complete.

3.5 DISPOSAL OF DEMOLISHED MATERIALS

A. General: Except for items or materials indicated to be reused, salvaged, reinstalled, orotherwise indicated to remain Owner's property, remove demolished materials from Project siteand legally dispose of them in an EPA-approved landfill.

1. Do not allow demolished materials to accumulate on-site.2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces

and areas.3. Remove debris from elevated portions of building by chute, hoist, or other device that

will convey debris to grade level in a controlled descent.4. Comply with requirements specified in Division 1 Section "Construction Waste

Management."

B. Disposal: Transport demolished materials off Owner's property and legally dispose of them.

3.6 CLEANING

A. Clean adjacent structures and improvements of dust, dirt, and debris caused by selectivedemolition operations. Return adjacent areas to condition existing before selective demolitionoperations began.





SECTION 10200 - LOUVERS AND VENTS

PART 1 - GENERAL


A. Drawings and general provisions of the Contract, including General and SupplementaryConditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Fixed, extruded-aluminum louvers.

1.3

DEFINITIONSA. Louver Terminology: Definitions of terms for metal louvers contained in AMCA 501 apply to

this Section unless otherwise defined in this Section or in referenced standards.

B. Drainable-Blade Louver: Louver with blades having gutters that collect water and drain it tochannels in jambs and mullions, which carry it to bottom of unit and away from opening.

1.4 PERFORMANCE REQUIREMENTS

A. Air-Performance, Water-Penetration, Air-Leakage, and Wind-Driven Rain Ratings: Providelouvers complying with performance requirements indicated, as demonstrated by testingmanufacturer's stock units identical to those provided, except for length and width according toAMCA 500-L.

1.5 SUBMITTALS

A. Product Data: For each type of product indicated. For louvers specified to bear AMCA seal,include printed catalog pages showing specified models with appropriate AMCA CertifiedRatings Seals.




field measurements. Coordinate construction to ensure that actual opening dimensionscorrespond to established dimensions.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offeringproducts that may be incorporated into the Work include, but are not limited to, the following:

1. Louvers:a. Carnes Company, Inc.b. Greenheck.c. Ruskin Company; Tomkins PLC.

2.2 FIXED, EXTRUDED-ALUMINUM LOUVERS

A. Horizontal, Drainable-Blade Louver:

1. Louver Depth: 4 inches (100 mm).2. Frame and Blade Nominal Thickness: As required to comply with structural performance

requirements, but not less than 0.080 inch (2.0 mm) for blades and 0.080 inch (2.0 mm)for frames.

3. Mullion Type: Exposed.4. Performance Requirements:

a. Free Area: Not less than 8.0 sq. ft. (0.74 sq. m) for 48-inch- (1.2-m-) wide by 48-inch- (1.2-m-) high louver.

b. Point of Beginning Water Penetration: Not less than 900 fpm (4.6 m/s).c. Air Performance: Not more than 0.10-inch wg (25-Pa) static pressure drop at 800-

fpm (4.1-m/s) free-area velocity.

5. AMCA Seal: Mark units with AMCA Certified Ratings Seal.

2.3 LOUVER SCREENS

A. General: Provide screen at each exterior louver.

1. Screen Location for Fixed Louvers: Interior face.2 Screening Type: Bird screening




2.4 FINISHES, GENERAL

A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" forrecommendations for applying and designating finishes.

B. Finish louvers after assembly.

2.5 ALUMINUM FINISHES

A. Finish designations prefixed by AA comply with system established by the AluminumAssociation for designating aluminum finishes.

B. Baked-Enamel Finish: AA-C12C42R1x (Chemical Finish: cleaned with inhibited chemicals;Chemical Finish: acid-chromate-fluoride-phosphate conversion coating). Apply baked enamelcomplying with paint manufacturer's written instructions for cleaning, conversion coating, andpainting.1. Color: As selected by Architect from manufacturer's full range.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates and openings, with Installer present, for compliance with requirements forinstallation tolerances and other conditions affecting performance.

1. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Coordinate setting drawings, diagrams, templates, instructions, and directions for installation of anchorages that are to be embedded in concrete or masonry construction. Coordinate deliveryof such items to Project site.

3.3 INSTALLATION

A. Locate and place louvers and vents level, plumb, and at indicated alignment with adjacent work.

B. Use concealed anchorages where possible. Provide brass or lead washers fitted to screws whererequired to protect metal surfaces and to make a weathertight connection




E. Protect galvanized and nonferrous-metal surfaces from corrosion or galvanic action by applyinga heavy coating of bituminous paint on surfaces that will be in contact with concrete, masonry,or dissimilar metals.


l ld 08




SECTION 15050 - COMMON WORK RESULTS FOR HVAC

PART 1 - GENERAL



1.2 SUMMARY


1. Piping materials and installation instructions common to most piping systems.2. Dielectric fittings.3. Grout.

4.

HVAC demolition.5. Equipment installation requirements common to equipment sections.6. Painting and finishing.7. Concrete bases.8. Supports and anchorages.

1.3 SUBMITTALS

A. Product Data: For the following:1. Dielectric fittings.

B. Welding certificates.

1.4 QUALITY ASSURANCE

A. Steel Support Welding: Qualify processes and operators according to AWS D1.1, "StructuralWelding Code--Steel."

B. Steel Pipe Welding: Qualify processes and operators according to ASME Boiler and PressureVessel Code: Section IX, "Welding and Brazing Qualifications."

1 Comply with provisions in ASME B31 Series "Code for Pressure Piping "

H ti g S t R l t t B ildi g E 4081




1.5 DELIVERY, STORAGE, AND HANDLING

A. Deliver pipes and tubes with factory-applied end caps. Maintain end caps through shipping,storage, and handling to prevent pipe end damage and to prevent entrance of dirt, debris, andmoisture.

PART 2 - PRODUCTS

2.1 PIPE, TUBE, AND FITTINGS

A. Refer to individual Division 15 piping Sections for pipe, tube, and fitting materials and joiningmethods.

B. Pipe Threads: ASME B1.20.1 for factory-threaded pipe and pipe fittings.

2.2 JOINING MATERIALS

A.

Refer to individual Division 15 piping Sections for special joining materials not listed below.B. Pipe-Flange Gasket Materials: Suitable for chemical and thermal conditions of piping system

contents.

1. ASME B16.21, nonmetallic, flat, asbestos-free, 1/8-inch (3.2-mm) maximum thicknessunless thickness or specific material is indicated.

a. Full-Face Type: For flat-face, Class 125, cast-iron and cast-bronze flanges.

b. Narrow-Face Type: For raised-face, Class 250, cast-iron and steel flanges.

2. AWWA C110, rubber, flat face, 1/8 inch (3.2 mm) thick, unless otherwise indicated; andfull-face or ring type, unless otherwise indicated.

C. Flange Bolts and Nuts: ASME B18.2.1, carbon steel, unless otherwise indicated.

D. Welding Filler Metals: Comply with AWS D10.12 for welding materials appropriate for wallthickness and chemical analysis of steel pipe being welded.

2.3 DIELECTRIC FITTINGS

A. Description: Combination fitting of copper alloy and ferrous materials with threaded, solder-joint plain or weld-neck end connections that match piping system materials

Heating System Replacement at Building E 4081




D. Dielectric Nipples: Electroplated steel nipple with inert and noncorrosive, thermoplastic lining;plain, threaded, or grooved ends; and 300-psig (2070-kPa) minimum working pressure at 225deg F (107 deg C).

2.4 GROUT

A. Description: ASTM C 1107, Grade B, nonshrink and nonmetallic, dry hydraulic-cement grout.

1. Characteristics: Post-hardening, volume-adjusting, nonstaining, noncorrosive,nongaseous, and recommended for interior and exterior applications.

2. Design Mix: 5000-psi (34.5-MPa), 28-day compressive strength.3. Packaging: Premixed and factory packaged.

PART 3 - EXECUTION

3.1 HVAC DEMOLITION

A.

Refer to Division 01 Section "Cutting and Patching" and Division 02 Section "SelectiveStructure Demolition" for general demolition requirements and procedures.

B. Disconnect, demolish, and remove HVAC systems, equipment, and components indicated to beremoved.1. Piping to Be Removed: Remove portion of piping indicated to be removed and cap or2. Equipment to Be Removed: Disconnect and cap services and remove equipment.

C. If pipe, insulation, or equipment to remain is damaged in appearance or is unserviceable,remove damaged or unserviceable portions and replace with new products of equal capacity andquality.

3.2 PIPING SYSTEMS - COMMON REQUIREMENTS

A. Install piping according to the following requirements and Division 15 Sections specifyingpiping systems.

B. Drawing plans, schematics, and diagrams indicate general location and arrangement of pipingsystems. Indicated locations and arrangements were used to size pipe and calculate frictionloss, expansion, pump sizing, and other design considerations. Install piping as indicated unlessdeviations to layout are approved on Coordination Drawings.

C Install piping indicated to be exposed and piping in equipment rooms and service areas at right






Heating System Replacement at Building E 4081

3.5 EQUIPMENT INSTALLATION - COMMON REQUIREMENTS

A. Install equipment to allow maximum possible headroom unless specific mounting heights are

not indicated.

B. Install equipment level and plumb, parallel and perpendicular to other building systems andcomponents in exposed interior spaces, unless otherwise indicated.

C. Install HVAC equipment to facilitate service, maintenance, and repair or replacement of components. Connect equipment for ease of disconnecting, with minimum interference to otherinstallations. Extend grease fittings to accessible locations.

D. Install equipment to allow right of way for piping installed at required slope.

3.6 PAINTING

A. Damage and Touchup: Repair marred and damaged factory-painted finishes with materials andprocedures to match original factory finish.

3.7 CONCRETE BASES

A. Concrete Bases: Anchor equipment to concrete base according to equipment manufacturer'swritten instructions and according to seismic codes at Project.

1. Construct concrete bases of dimensions indicated, but not less than 4 inches (100 mm)larger in both directions than supported unit.

2. Install dowel rods to connect concrete base to concrete floor. Unless otherwise indicated,

install dowel rods on 18-inch (450-mm) centers around the full perimeter of the base.3. Install epoxy-coated anchor bolts for supported equipment that extend through concrete

base, and anchor into structural concrete floor.4. Place and secure anchorage devices. Use supported equipment manufacturer's setting

drawings, templates, diagrams, instructions, and directions furnished with items to beembedded.

5. Install anchor bolts to elevations required for proper attachment to supported equipment.6. Install anchor bolts according to anchor-bolt manufacturer's written instructions.7. Use 3000-psi (20.7-MPa), 28-day compressive-strength concrete and reinforcement.

3.8 ERECTION OF METAL SUPPORTS AND ANCHORAGES

A. Cut, fit, and place miscellaneous metal supports accurately in location, alignment, and elevationd h HVAC i l d i




g y p g

B. Clean surfaces that will come into contact with grout.

C. Provide forms as required for placement of grout.

D. Avoid air entrapment during placement of grout.

E. Place grout, completely filling equipment bases.

F. Place grout on concrete bases and provide smooth bearing surface for equipment.

G. Place grout around anchors.

H. Cure placed grout.





SECTION 15062 - HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

PART 1 - GENERAL



1.2 SUMMARY

A. This Section includes the following hangers and supports for HVAC system piping andequipment:

1. Steel pipe hangers and supports.2. Thermal-hanger shield inserts.

B. Related Sections include the following:1. Division 15 Section " Vibration and Seismic Controls for HVAC Piping and Equipment"

for vibration isolation devices.

1.3 DEFINITIONS

A. MSS: Manufacturers Standardization Society for The Valve and Fittings Industry Inc.

B. Terminology: As defined in MSS SP-90, "Guidelines on Terminology for Pipe Hangers andSupports."

1.4 SUBMITTALS

A. Product Data: For the following:

1. Steel pipe hangers and supports.

PART 2 - PRODUCTS




D. Padded Hangers: Hanger with fiberglass or other pipe insulation pad or cushion for support of bearing surface of piping.

2.2 THERMAL-HANGER SHIELD INSERTS

A. Description: 100-psig- (690-kPa-) minimum, compressive-strength insulation insert encased insheet metal shield.

B. Insulation-Insert Material for Cold Piping: Water-repellent treated, ASTM C 533, Type Icalcium silicate or ASTM C 552, Type II cellular glass with vapor barrier.

C. Insulation-Insert Material for Hot Piping: Water-repellent treated, ASTM C 533, Type Icalcium silicate or ASTM C 552, Type II cellular glass.

D. For Trapeze or Clamped Systems: Insert and shield shall cover entire circumference of pipe.

E. For Clevis or Band Hangers: Insert and shield shall cover lower 180 degrees of pipe.

F. Insert Length: Extend 2 inches (50 mm) beyond sheet metal shield for piping operating below

ambient air temperature.

2.3 MISCELLANEOUS MATERIALS

A. Structural Steel: ASTM A 36/A 36M, steel plates, shapes, and bars; black and galvanized.

PART 3 - EXECUTION

3.1 HANGER AND SUPPORT APPLICATIONS

A. Specific hanger and support requirements are specified in Sections specifying piping systemsand equipment.

B. Comply with MSS SP-69 for pipe hanger selections and applications that are not specified inpiping system Sections.

C. Use hangers and supports with galvanized, metallic coatings for piping and equipment that willnot have field-applied finish.

D. Horizontal-Piping Hangers and Supports: Unless otherwise indicated and except as specified inpiping system Sections install the following types:




3. Carbon- or Alloy-Steel, Double-Bolt Pipe Clamps (MSS Type 3): For suspension of pipes, NPS 3/4 to NPS 24 (DN 20 to DN 600), requiring clamp flexibility and up to 4inches (100 mm) of insulation.

4. Steel Pipe Clamps (MSS Type 4): For suspension of cold and hot pipes, NPS 1/2 toNPS 24 (DN 15 to DN 600), if little or no insulation is required.

5. Pipe Hangers (MSS Type 5): For suspension of pipes, NPS 1/2 to NPS 4 (DN 15 toDN 100), to allow off-center closure for hanger installation before pipe erection.

6. Adjustable, Swivel Split- or Solid-Ring Hangers (MSS Type 6): For suspension of noninsulated stationary pipes, NPS 3/4 to NPS 8 (DN 20 to DN 200).

7. Adjustable, Steel Band Hangers (MSS Type 7): For suspension of noninsulatedstationary pipes, NPS 1/2 to NPS 8 (DN 15 to DN 200).

8. Adjustable Band Hangers (MSS Type 9): For suspension of noninsulated stationarypipes, NPS 1/2 to NPS 8 (DN 15 to DN 200).

9. Adjustable, Swivel-Ring Band Hangers (MSS Type 10): For suspension of noninsulatedstationary pipes, NPS 1/2 to NPS 2 (DN 15 to DN 50).

10. Split Pipe-Ring with or without Turnbuckle-Adjustment Hangers (MSS Type 11): Forsuspension of noninsulated stationary pipes, NPS 3/8 to NPS 8 (DN 10 to DN 200).

11. Extension Hinged or 2-Bolt Split Pipe Clamps (MSS Type 12): For suspension of noninsulated stationary pipes, NPS 3/8 to NPS 3 (DN 10 to DN 80).

12. U-Bolts (MSS Type 24): For support of heavy pipes, NPS 1/2 to NPS 30 (DN 15 to

DN 750).13. Clips (MSS Type 26): For support of insulated pipes not subject to expansion or

contraction.14. Pipe Saddle Supports (MSS Type 36): For support of pipes, NPS 4 to NPS 36 (DN 100

to DN 900), with steel pipe base stanchion support and cast-iron floor flange.15. Pipe Stanchion Saddles (MSS Type 37): For support of pipes, NPS 4 to NPS 36 (DN 100

to DN 900), with steel pipe base stanchion support and cast-iron floor flange and with U-bolt to retain pipe.

16. Adjustable, Pipe Saddle Supports (MSS Type 38): For stanchion-type support for pipes,NPS 2-1/2 to NPS 36 (DN 65 to DN 900), if vertical adjustment is required, with steelpipe base stanchion support and cast-iron floor flange.

17. Single Pipe Rolls (MSS Type 41): For suspension of pipes, NPS 1 to NPS 30 (DN 25 toDN 750), from 2 rods if longitudinal movement caused by expansion and contractionmight occur.

18. Adjustable Roller Hangers (MSS Type 43): For suspension of pipes, NPS 2-1/2 toNPS 20 (DN 65 to DN 500), from single rod if horizontal movement caused by expansionand contraction might occur.

19. Complete Pipe Rolls (MSS Type 44): For support of pipes, NPS 2 to NPS 42 (DN 50 toDN 1050), if longitudinal movement caused by expansion and contraction might occurbut vertical adjustment is not necessary.

20. Pipe Roll and Plate Units (MSS Type 45): For support of pipes, NPS 2 to NPS 24(DN 50 to DN 600), if small horizontal movement caused by expansion and contractionmight occur and vertical adjustment is not necessary




1. Extension Pipe or Riser Clamps (MSS Type 8): For support of pipe risers, NPS 3/4 toNPS 20 (DN 20 to DN 500).

2. Carbon- or Alloy-Steel Riser Clamps (MSS Type 42): For support of pipe risers,

NPS 3/4 to NPS 20 (DN 20 to DN 500), if longer ends are required for riser clamps.

F. Hanger-Rod Attachments: Unless otherwise indicated and except as specified in piping systemSections, install the following types:

1. Steel Turnbuckles (MSS Type 13): For adjustment up to 6 inches (150 mm) for heavyloads.

2. Steel Clevises (MSS Type 14): For 120 to 450 deg F (49 to 232 deg C) pipinginstallations.

3. Swivel Turnbuckles (MSS Type 15): For use with MSS Type 11, split pipe rings.4. Malleable-Iron Sockets (MSS Type 16): For attaching hanger rods to various types of

building attachments.5. Steel Weldless Eye Nuts (MSS Type 17): For 120 to 450 deg F (49 to 232 deg C) piping

installations.

G. Building Attachments: Unless otherwise indicated and except as specified in piping systemSections, install the following types:

1. Steel or Malleable Concrete Inserts (MSS Type 18): For upper attachment to suspendpipe hangers from concrete ceiling.

2. Top-Beam C-Clamps (MSS Type 19): For use under roof installations with bar-joistconstruction to attach to top flange of structural shape.

3. Side-Beam or Channel Clamps (MSS Type 20): For attaching to bottom flange of beams,channels, or angles.

4. Center-Beam Clamps (MSS Type 21): For attaching to center of bottom flange of beams.5. Welded Beam Attachments (MSS Type 22): For attaching to bottom of beams if loads

are considerable and rod sizes are large.6. C-Clamps (MSS Type 23): For structural shapes.7. Top-Beam Clamps (MSS Type 25): For top of beams if hanger rod is required tangent to

flange edge.8. Side-Beam Clamps (MSS Type 27): For bottom of steel I-beams.9. Steel-Beam Clamps with Eye Nuts (MSS Type 28): For attaching to bottom of steel I-

beams for heavy loads.10. Linked-Steel Clamps with Eye Nuts (MSS Type 29): For attaching to bottom of steel I-

beams for heavy loads, with link extensions.11. Malleable Beam Clamps with Extension Pieces (MSS Type 30): For attaching tostructural steel.

12. Welded-Steel Brackets: For support of pipes from below, or for suspending from aboveby using clip and rod. Use one of the following for indicated loads:




H. Saddles and Shields: Unless otherwise indicated and except as specified in piping systemSections, install the following types:

1. Steel Pipe-Covering Protection Saddles (MSS Type 39): To fill interior voids withinsulation that matches adjoining insulation.

2. Protection Shields (MSS Type 40): Of length recommended in writing by manufacturerto prevent crushing insulation.

3. Thermal-Hanger Shield Inserts: For supporting insulated pipe.

I. Spring Hangers and Supports: Unless otherwise indicated and except as specified in pipingsystem Sections, install the following types:

1. Restraint-Control Devices (MSS Type 47): Where indicated to control piping movement.2. Spring Cushions (MSS Type 48): For light loads if vertical movement does not exceed

1-1/4 inches (32 mm).3. Spring-Cushion Roll Hangers (MSS Type 49): For equipping Type 41 roll hanger with

springs.4. Spring Sway Braces (MSS Type 50): To retard sway, shock, vibration, or thermal

expansion in piping systems.5. Variable-Spring Hangers (MSS Type 51): Preset to indicated load and limit variability

factor to 25 percent to absorb expansion and contraction of piping system from hanger.6. Variable-Spring Base Supports (MSS Type 52): Preset to indicated load and limitvariability factor to 25 percent to absorb expansion and contraction of piping system frombase support.

7. Variable-Spring Trapeze Hangers (MSS Type 53): Preset to indicated load and limitvariability factor to 25 percent to absorb expansion and contraction of piping system fromtrapeze support.

8. Constant Supports: For critical piping stress and if necessary to avoid transfer of stressfrom one support to another support, critical terminal, or connected equipment. Includeauxiliary stops for erection, hydrostatic test, and load-adjustment capability. Thesesupports include the following types:

a. Horizontal (MSS Type 54): Mounted horizontally.b. Vertical (MSS Type 55): Mounted vertically.c. Trapeze (MSS Type 56): Two vertical-type supports and one trapeze member.

J. Comply with MSS SP-69 for trapeze pipe hanger selections and applications that are not

specified in piping system Sections.

K. Comply with MFMA-102 for metal framing system selections and applications that are notspecified in piping system Sections.




C. Insulated Piping: Comply with the following:

1. Attach clamps and spacers to piping.

a. Piping Operating above Ambient Air Temperature: Clamp may project throughinsulation.

b. Piping Operating below Ambient Air Temperature: Use thermal-hanger shieldinsert with clamp sized to match OD of insert.

c. Do not exceed pipe stress limits according to ASME B31.1 for power piping andASME B31.9 for building services piping.

2. Install MSS SP-58, Type 39, protection saddles if insulation without vapor barrier isindicated. Fill interior voids with insulation that matches adjoining insulation.

a. Option: Thermal-hanger shield inserts may be used. Include steel weight-distribution plate for pipe NPS 4 (DN 100) and larger if pipe is installed on rollers.

3. Install MSS SP-58, Type 40, protective shields on cold piping with vapor barrier. Shieldsshall span an arc of 180 degrees.

a.

Option: Thermal-hanger shield inserts may be used. Include steel weight-distribution plate for pipe NPS 4 (DN 100) and larger if pipe is installed on rollers.

4. Shield Dimensions for Pipe: Not less than the following:

a. NPS 1/4 to NPS 3-1/2 (DN 8 to DN 90): 12 inches (305 mm) long and 0.048 inch(1.22 mm) thick.

b. NPS 4 (DN 100): 12 inches (305 mm) long and 0.06 inch (1.52 mm) thick.c. NPS 5 and NPS 6 (DN 125 and DN 150): 18 inches (457 mm) long and 0.06 inch

(1.52 mm) thick.d. NPS 8 to NPS 14 (DN 200 to DN 350): 24 inches (610 mm) long and 0.075 inch

(1.91 mm) thick.

5. Pipes NPS 8 (DN 200) and Larger: Include wood inserts.6. Insert Material: Length at least as long as protective shield.7. Thermal-Hanger Shields: Install with insulation same thickness as piping insulation.





SECTION 15077 - IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

PART 1 - GENERAL



1.2 SUMMARY

A. Section Includes:1. Pipe labels.2. Stencils.

1.3 SUBMITTALS

A. Product Data: For each type of product indicated.

PART 2 - PRODUCTS

2.1 PIPE LABELS

A. General Requirements for Manufactured Pipe Labels: Preprinted, color-coded, with letteringindicating service, and showing flow direction.

B. Pretensioned Pipe Labels: Precoiled, semirigid plastic formed to cover full circumference of pipe and to attach to pipe without fasteners or adhesive.

C. Pipe Label Contents: Include identification of piping service using same designations orabbreviations as used on Drawings, pipe size, and an arrow indicating flow direction.

1. Flow-Direction Arrows: Integral with piping system service lettering to accommodateboth directions, or as separate unit on each pipe label to indicate flow direction.

2. Lettering Size: At least 1-1/2 inches (38 mm) high.




PART 3 - EXECUTION

3.1 PREPARATION

A. Clean piping and equipment surfaces of substances that could impair bond of identificationdevices, including dirt, oil, grease, release agents, and incompatible primers, paints, andencapsulants.

3.2 PIPE LABEL INSTALLATION

A. Stenciled Pipe Label Option: Stenciled labels may be provided instead of manufactured pipelabels, at Installer's option. Install stenciled pipe labels on each piping system.

1. Identification Paint: Use for contrasting background.2. Stencil Paint: Use for pipe marking.

B. Locate pipe labels where piping is exposed or above accessible ceilings in finished spaces;machine rooms; accessible maintenance spaces such as shafts, tunnels, and plenums; andexterior exposed locations as follows:

1. Near each valve and control device.2. Near each branch connection, excluding short takeoffs for fixtures and terminal units.

Where flow pattern is not obvious, mark each pipe at branch.3. Near penetrations through walls, floors, ceilings, and inaccessible enclosures.4. At access doors, manholes, and similar access points that permit view of concealed

piping.5. Near major equipment items and other points of origination and termination.

6. Spaced at maximum intervals of 50 feet (15 m) along each run. Reduce intervals to 25feet (7.6 m) in areas of congested piping and equipment.

C. Pipe Label Color Schedule:

1. Hydronic Piping:

a. Background Color: Yellow.b. Letter Color: Black.





SECTION 15085 - HVAC INSULATION

PART 1 - GENERAL



1.2 SUMMARY

A. Section Includes:

1. Insulation Materials:a. Mineral fiber.

2. Insulating cements.3. Adhesives.4. Mastics.5. Factory-applied jackets.6. Tapes.

1.3 SUBMITTALS

A. Product Data: For each type of product indicated. Include thermal conductivity, thickness, and

jackets (both factory and field applied, if any).

B. Qualification Data: For qualified Installer.

C. Field quality-control reports.


A. Installer Qualifications: Skilled mechanics who have successfully completed an apprenticeshipprogram or another craft training program certified by the Department of Labor, Bureau of Apprenticeship and Training.

B. Fire-Test-Response Characteristics: Insulation and related materials shall have fire-test-response characteristics indicated as determined by testing identical products per ASTM E 84





A. Packaging: Insulation material containers shall be marked by manufacturer with appropriate

ASTM standard designation, type and grade, and maximum use temperature.

1.6 COORDINATION

A. Coordinate size and location of supports, hangers, and insulation shields specified inDivision 15 Section "Hangers and Supports for HVAC Piping and Equipment."

PART 2 - PRODUCTS

2.1 INSULATION MATERIALS

A. Comply with requirements in Part 3 schedule articles for where insulating materials shall beapplied.

B. Products shall not contain asbestos, lead, mercury, or mercury compounds.

C. Mineral-Fiber, Preformed Pipe Insulation:

1. Type I, 850 deg F (454 deg C) Materials: Mineral or glass fibers bonded with athermosetting resin. Comply with ASTM C 547, Type I, Grade A, with factory-appliedASJ-SSL. Factory-applied jacket requirements are specified in "Factory-AppliedJackets" Article.

D.

Mineral-Fiber, Pipe and Tank Insulation: Mineral or glass fibers bonded with a thermosettingresin. Semirigid board material with factory-applied ASJ complying with ASTM C 1393,Type II or Type IIIA Category 2, or with properties similar to ASTM C 612, Type IB. Nominaldensity is 2.5 lb/cu. ft. (40 kg/cu. m) or more. Thermal conductivity (k-value) at 100 deg F (55deg C) is 0.29 Btu x in./h x sq. ft. x deg F (0.042 W/m x K) or less. Factory-applied jacketrequirements are specified in "Factory-Applied Jackets" Article.

2.2 INSULATING CEMENTS

A. Mineral-Fiber Insulating Cement: Comply with ASTM C 195.

2.3 ADHESIVES




2.4 MASTICS

A. Materials shall be compatible with insulation materials, jackets, and substrates; comply with

MIL-C-19565C, Type II.

B. Vapor-Barrier Mastic: Water based; suitable for indoor and outdoor use on below ambientservices.

1. Water-Vapor Permeance: ASTM E 96, Procedure B, 0.013 perm (0.009 metric perm) at43-mil (1.09-mm) dry film thickness.

2. Service Temperature Range: Minus 20 to plus 180 deg F (Minus 29 to plus 82 deg C).3. Solids Content: ASTM D 1644, 59 percent by volume and 71 percent by weight.4. Color: White.

2.5 FACTORY-APPLIED JACKETS

A. Insulation system schedules indicate factory-applied jackets on various applications. Whenfactory-applied jackets are indicated, comply with the following:

1. ASJ: White, kraft-paper, fiberglass-reinforced scrim with aluminum-foil backing;complying with ASTM C 1136, Type I.

2. ASJ-SSL: ASJ with self-sealing, pressure-sensitive, acrylic-based adhesive covered by aremovable protective strip; complying with ASTM C 1136, Type I.

2.6 TAPES

A. ASJ Tape: White vapor-retarder tape matching factory-applied jacket with acrylic adhesive,

complying with ASTM C 1136.

1. Width: 3 inches (75 mm).2. Thickness: 11.5 mils (0.29 mm).3. Adhesion: 90 ounces force/inch (1.0 N/mm) in width.4. Elongation: 2 percent.5. Tensile Strength: 40 lbf/inch (7.2 N/mm) in width.6. ASJ Tape Disks and Squares: Precut disks or squares of ASJ tape.

B. PVC Tape: White vapor-retarder tape matching field-applied PVC jacket with acrylic adhesive.Suitable for indoor and outdoor applications.

1. Width: 2 inches (50 mm).2. Thickness: 6 mils (0.15 mm).3 Adh i 64 f /i h (0 7 N/ ) i id h




PART 3 - EXECUTION

3.1

EXAMINATION

A. Examine substrates and conditions for compliance with requirements for installation and otherconditions affecting performance of insulation application.

1. Verify that systems and equipment to be insulated have been tested and are free of defects.

2. Verify that surfaces to be insulated are clean and dry.3. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Surface Preparation: Clean and dry surfaces to receive insulation. Remove materials that willadversely affect insulation application.

B. Coordinate insulation installation with the trade installing heat tracing. Comply withrequirements for heat tracing that apply to insulation.

C. Mix insulating cements with clean potable water; if insulating cements are to be in contact withstainless-steel surfaces, use demineralized water.

3.3 GENERAL INSTALLATION REQUIREMENTS

A. Install insulation materials, accessories, and finishes with smooth, straight, and even surfaces;

free of voids throughout the length of equipment, ducts and fittings, and piping includingfittings, valves, and specialties.

B. Install insulation materials, forms, vapor barriers or retarders, jackets, and thicknesses requiredfor each item of equipment, duct system, and pipe system as specified in insulation systemschedules.

C. Install accessories compatible with insulation materials and suitable for the service. Installaccessories that do not corrode, soften, or otherwise attack insulation or jacket in either wet ordry state.

D. Install insulation with longitudinal seams at top and bottom of horizontal runs.

E. Install multiple layers of insulation with longitudinal and end seams staggered.




J. Where vapor barrier is indicated, seal joints, seams, and penetrations in insulation at hangers,supports, anchors, and other projections with vapor-barrier mastic.

1.

Install insulation continuously through hangers and around anchor attachments.2. For insulation application where vapor barriers are indicated, extend insulation on anchorlegs from point of attachment to supported item to point of attachment to structure. Taperand seal ends at attachment to structure with vapor-barrier mastic.

3. Install insert materials and install insulation to tightly join the insert. Seal insulation toinsulation inserts with adhesive or sealing compound recommended by insulationmaterial manufacturer.

4. Cover inserts with jacket material matching adjacent pipe insulation. Install shields over jacket, arranged to protect jacket from tear or puncture by hanger, support, and shield.

K. Apply adhesives, mastics, and sealants at manufacturer's recommended coverage rate and wetand dry film thicknesses.

L. Install insulation with factory-applied jackets as follows:

1. Draw jacket tight and smooth.2. Cover circumferential joints with 3-inch- (75-mm-) wide strips, of same material as

insulation jacket. Secure strips with adhesive and outward clinching staples along bothedges of strip, spaced 4 inches (100 mm) o.c.

M. Cut insulation in a manner to avoid compressing insulation more than 75 percent of its nominalthickness.

N. Finish installation with systems at operating conditions. Repair joint separations and crackingdue to thermal movement.

O. Repair damaged insulation facings by applying same facing material over damaged areas.Extend patches at least 4 inches (100 mm) beyond damaged areas. Adhere, staple, and sealpatches similar to butt joints.

P. For above ambient services, do not install insulation to the following:

1. Vibration-control devices.2. Testing agency labels and stamps.3. Nameplates and data plates.4. Manholes.5. Handholes.6. Cleanouts.




2. Groove and score insulation materials to fit as closely as possible to equipment, includingcontours. Bevel insulation edges for cylindrical surfaces for tight joints. Stagger end

joints.

3. Protect exposed corners with secured corner angles.4. Install adhesively attached or self-sticking insulation hangers and speed washers on sidesof tanks and vessels as follows:

a. Do not weld anchor pins to ASME-labeled pressure vessels.b. Select insulation hangers and adhesive that are compatible with service

temperature and with substrate.c. On tanks and vessels, maximum anchor-pin spacing is 3 inches (75 mm) from

insulation end joints, and 16 inches (400 mm) o.c. in both directions.d. Do not overcompress insulation during installation.e. Cut and miter insulation segments to fit curved sides and domed heads of tanks

and vessels.f. Impale insulation over anchor pins and attach speed washers.g. Cut excess portion of pins extending beyond speed washers or bend parallel with

insulation surface. Cover exposed pins and washers with tape matching insulationfacing.

5.

Secure each layer of insulation with stainless-steel or aluminum bands. Select bandmaterial compatible with insulation materials.6. Where insulation hangers on equipment and vessels are not permitted or practical and

where insulation support rings are not provided, install a girdle network for securinginsulation. Stretch prestressed aircraft cable around the diameter of vessel and make tautwith clamps, turnbuckles, or breather springs. Place one circumferential girdle aroundequipment approximately 6 inches (150 mm) from each end. Install wire or cablebetween two circumferential girdles 12 inches (300 mm) o.c. Install a wire ring aroundeach end and around outer periphery of center openings, and stretch prestressed aircraftcable radially from the wire ring to nearest circumferential girdle. Install additionalcircumferential girdles along the body of equipment or tank at a minimum spacing of 48inches (1200 mm) o.c. Use this network for securing insulation with tie wire or bands.

7. Stagger joints between insulation layers at least 3 inches (75 mm).8. Install insulation in removable segments on equipment access doors, manholes,

handholes, and other elements that require frequent removal for service and inspection.9. Bevel and seal insulation ends around manholes, handholes, ASME stamps, and

nameplates.

10.

For equipment with surface temperatures below ambient, apply mastic to open ends, joints, seams, breaks, and punctures in insulation.

3.5 GENERAL PIPE INSULATION INSTALLATION




2. Insulate pipe elbows using preformed fitting insulation or mitered fittings made fromsame material and density as adjacent pipe insulation. Each piece shall be butted tightlyagainst adjoining piece and bonded with adhesive. Fill joints, seams, voids, and irregular

surfaces with insulating cement finished to a smooth, hard, and uniform contour that isuniform with adjoining pipe insulation.3. Insulate tee fittings with preformed fitting insulation or sectional pipe insulation of same

material and thickness as used for adjacent pipe. Cut sectional pipe insulation to fit. Butteach section closely to the next and hold in place with tie wire. Bond pieces withadhesive.

4. Insulate valves using preformed fitting insulation or sectional pipe insulation of samematerial, density, and thickness as used for adjacent pipe. Overlap adjoining pipeinsulation by not less than two times the thickness of pipe insulation, or one pipediameter, whichever is thicker. For valves, insulate up to and including the bonnets,valve stuffing-box studs, bolts, and nuts. Fill joints, seams, and irregular surfaces withinsulating cement.

5. Insulate strainers using preformed fitting insulation or sectional pipe insulation of samematerial, density, and thickness as used for adjacent pipe. Overlap adjoining pipeinsulation by not less than two times the thickness of pipe insulation, or one pipediameter, whichever is thicker. Fill joints, seams, and irregular surfaces with insulatingcement. Insulate strainers so strainer basket flange or plug can be easily removed and

replaced without damaging the insulation and jacket. Provide a removable reusableinsulation cover. For below ambient services, provide a design that maintains vaporbarrier.

6. Insulate flanges and unions using a section of oversized preformed pipe insulation.Overlap adjoining pipe insulation by not less than two times the thickness of pipeinsulation, or one pipe diameter, whichever is thicker.

7. Cover segmented insulated surfaces with a layer of finishing cement and coat with amastic. Install vapor-barrier mastic for below ambient services and a breather mastic forabove ambient services. Reinforce the mastic with fabric-reinforcing mesh. Trowel themastic to a smooth and well-shaped contour.

8. For services not specified to receive a field-applied jacket except for flexible elastomericand polyolefin, install fitted PVC cover over elbows, tees, strainers, valves, flanges, andunions. Terminate ends with PVC end caps. Tape PVC covers to adjoining insulationfacing using PVC tape.

9. Stencil or label the outside insulation jacket of each union with the word "UNION."Match size and color of pipe labels.

C.

Insulate instrument connections for thermometers, pressure gages, pressure temperature taps,test connections, flow meters, sensors, switches, and transmitters on insulated pipes, vessels,and equipment. Shape insulation at these connections by tapering it to and around theconnection with insulating cement and finish with finishing cement, mastic, and flashingsealant.




insulation on each side of flange or union. Secure flange cover in place with stainless-steel or aluminum bands. Select band material compatible with insulation and jacket.

3. Construct removable valve insulation covers in same manner as for flanges except divide

the two-part section on the vertical center line of valve body.4. When covers are made from block insulation, make two halves, each consisting of mitered blocks wired to stainless-steel fabric. Secure this wire frame, with its attachedinsulation, to flanges with tie wire. Extend insulation at least 2 inches (50 mm) overadjacent pipe insulation on each side of valve. Fill space between flange or union coverand pipe insulation with insulating cement. Finish cover assembly with insulatingcement applied in two coats. After first coat is dry, apply and trowel second coat to asmooth finish.

5. Unless a PVC jacket is indicated in field-applied jacket schedules, finish exposedsurfaces with a metal jacket.

3.6 MINERAL-FIBER INSULATION INSTALLATION

A. Insulation Installation on Straight Pipes and Tubes:

1. Secure each layer of preformed pipe insulation to pipe with wire or bands and tightenbands without deforming insulation materials.

2. Where vapor barriers are indicated, seal longitudinal seams, end joints, and protrusionswith vapor-barrier mastic and joint sealant.

3. For insulation with factory-applied jackets on above ambient surfaces, secure laps withoutward clinched staples at 6 inches (150 mm) o.c.

4. For insulation with factory-applied jackets on below ambient surfaces, do not staplelongitudinal tabs but secure tabs with additional adhesive as recommended by insulationmaterial manufacturer and seal with vapor-barrier mastic and flashing sealant.

B. Insulation Installation on Pipe Flanges:

1. Install preformed pipe insulation to outer diameter of pipe flange.2. Make width of insulation section same as overall width of flange and bolts, plus twice the

thickness of pipe insulation.3. Fill voids between inner circumference of flange insulation and outer circumference of

adjacent straight pipe segments with mineral-fiber blanket insulation.4. Install jacket material with manufacturer's recommended adhesive, overlap seams at least

1 inch (25 mm), and seal joints with flashing sealant.

C. Insulation Installation on Pipe Fittings and Elbows:

1. Install preformed sections of same material as straight segments of pipe insulation whenavailable.




2. When preformed sections are not available, install mitered sections of pipe insulation tovalve body.

3. Arrange insulation to permit access to packing and to allow valve operation without

disturbing insulation.4. Install insulation to flanges as specified for flange insulation application.

3.7 EQUIPMENT INSULATION SCHEDULE

A. Insulation materials and thicknesses are identified below. If more than one material is listed fora type of equipment, selection from materials listed is Contractor's option.

B. Insulate indoor and outdoor equipment in paragraphs below that is not factory insulated.1. Air-separator insulation shall be the following:

a. Mineral-Fiber Pipe and Tank: 1 inch (25 mm) thick.

3.8 PIPING INSULATION SCHEDULE, GENERAL

A. Acceptable preformed pipe and tubular insulation materials and thicknesses are identified foreach piping system and pipe size range. If more than one material is listed for a piping system,selection from materials listed is Contractor's option.

3.9 INDOOR PIPING INSULATION SCHEDULE

A. Hydronic Piping, 40 to 200 Deg F (5 to 93 Deg C):

1. Insulation shall be the following:

a.

Mineral-Fiber, Preformed Pipe, Type I: 1-1/2 inches (38 mm) thick.





SECTION 15112 - GENERAL-DUTY VALVES FOR HVAC PIPING

PART 1 - GENERAL



1.2 SUMMARY

A. Section Includes:1. Bronze ball valves.2. Iron, single-flange butterfly valves.3. Bronze swing check valves.4. Iron swing check valves.5. Chainwheels.

B. Related Sections:

1. Division 15 HVAC piping Sections for specialty valves applicable to those Sections only.2. Division 15 Section "Identification for HVAC Piping and Equipment" for valve tags and

schedules.

1.3 DEFINITIONS

A. EPDM: Ethylene propylene copolymer rubber.

1.4 SUBMITTALS

A. Product Data: For each type of valve indicated.


A. Source Limitations for Valves: Obtain each type of valve from single source from singlemanufacturer.


1 6 DELIVERY STORAGE AND HANDLING




A. Prepare valves for shipping as follows:

1. Protect internal parts against rust and corrosion.2. Protect threads, flange faces, grooves, and weld ends.3. Set angle, gate, and globe valves closed to prevent rattling.4. Set ball and plug valves open to minimize exposure of functional surfaces.5. Set butterfly valves closed or slightly open.6. Block check valves in either closed or open position.

B. Use the following precautions during storage:

1. Maintain valve end protection.2. Store valves indoors and maintain at higher than ambient dew point temperature. If

outdoor storage is necessary, store valves off the ground in watertight enclosures.

C. Use sling to handle large valves; rig sling to avoid damage to exposed parts. Do not usehandwheels or stems as lifting or rigging points.

PART 2 - PRODUCTS

2.1 GENERAL REQUIREMENTS FOR VALVES

A. Refer to HVAC valve schedule articles for applications of valves.

B. Valve Pressure and Temperature Ratings: Not less than indicated and as required for system

pressures and temperatures.C. Valve Sizes: Same as upstream piping unless otherwise indicated.

D. Valve Actuator Types:

1. Gear Actuator: For quarter-turn valves NPS 8 (DN 200) and larger.2. Handwheel: For valves other than quarter-turn types.3. Hand lever: For quarter-turn valves NPS 6 (DN 150) and smaller.

4. Chainwheel: Device for attachment to valve handwheel, stem, or other actuator; of sizeand with chain for mounting height, as indicated in the "Valve Installation" Article.

E. Valves in Insulated Piping: With 2-inch (50-mm) stem extensions and the following features:1. Ball Valves: With extended operating handle of non-thermal-conductive material, and

t ti l th t ll ti f l ith t b ki th l


2 2 BRONZE BALL VALVES



2.2 BRONZE BALL VALVES

A. Two-Piece, Full-Port, Bronze Ball Valves with Stainless-Steel Trim:

1. Description:

a. Standard: MSS SP-110.b. SWP Rating: 150 psig (1035 kPa).c. CWP Rating: 600 psig (4140 kPa).d. Body Design: Two piece.e. Body Material: Bronze.f. Ends: Threaded.

g. Seats: PTFE or TFE.h. Stem: Stainless steel.i. Ball: Stainless steel, vented.

j. Port: Full.

2.3 IRON, SINGLE-FLANGE BUTTERFLY VALVES

A. 150 CWP, Iron, Single-Flange Butterfly Valves with EPDM Seat and Aluminum-Bronze Disc:

1. Description:

a. Standard: MSS SP-67, Type I.b. CWP Rating: 150 psig (1035 kPa).c. Body Design: Lug type; suitable for bidirectional dead-end service at rated

pressure without use of downstream flange.d. Body Material: ASTM A 126, cast iron or ASTM A 536, ductile iron.

e.

Seat: EPDM.f. Stem: One- or two-piece stainless steel.g. Disc: Aluminum bronze.

2.4 BRONZE SWING CHECK VALVES

A. Class 125, Bronze Swing Check Valves with Bronze Disc:

1. Description:

a. Standard: MSS SP-80, Type 3.b. CWP Rating: 200 psig (1380 kPa).c. Body Design: Horizontal flow.d B d M i l ASTM B 62 b


1 Description:



1. Description:

a. Standard: MSS SP-71, Type I.

b.

NPS 2-1/2 to NPS 12 (DN 65 to DN 300), CWP Rating: 200 psig (1380 kPa).c. Body Design: Clear or full waterway.d. Body Material: ASTM A 126, gray iron with bolted bonnet.e. Ends: Flanged.f. Trim: Bronze.g. Gasket: Asbestos free.

2.6 CHAINWHEELS

A. Description: Valve actuation assembly with sprocket rim, brackets, and chain.

1. Brackets: Type, number, size, and fasteners required to mount actuator on valve.2. Attachment: For connection to butterfly valve stems.3. Sprocket Rim with Chain Guides: Ductile or cast iron, of type and size required for

valve.4. Chain: Hot-dip, galvanized steel, of size required to fit sprocket rim.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine valve interior for cleanliness, freedom from foreign matter, and corrosion. Removespecial packing materials, such as blocks, used to prevent disc movement during shipping and

handling.B. Operate valves in positions from fully open to fully closed. Examine guides and seats made

accessible by such operations.

C. Examine threads on valve and mating pipe for form and cleanliness.

D. Examine mating flange faces for conditions that might cause leakage. Check bolting for propersize, length, and material. Verify that gasket is of proper size, that its material composition is

suitable for service, and that it is free from defects and damage.

E. Do not attempt to repair defective valves; replace with new valves.

3 2 VALVE INSTALLATION


D. Install valves in position to allow full stem movement.



D. Install valves in position to allow full stem movement.

E. Install chainwheels on operators for butterfly valves NPS 4 (DN 100) and larger and more than96 inches (2400 mm) above floor. Extend chains to 60 inches (1520 mm) above finished floor.

F. Install check valves for proper direction of flow and as follows:

1. Swing Check Valves: In horizontal position with hinge pin level.

3.3 ADJUSTING

A. Adjust or replace valve packing after piping systems have been tested and put into service butbefore final adjusting and balancing. Replace valves if persistent leaking occurs.

3.4 GENERAL REQUIREMENTS FOR VALVE APPLICATIONS

A. If valve applications are not indicated, use the following:

1. Shutoff Service: Ball, butterfly valves.2. Butterfly Valve Dead-End Service: Single-flange (lug) type.3. Pump-Discharge Check Valves:

a. NPS 2 (DN 50) and Smaller: Bronze swing check valves with bronze disc.b. NPS 2-1/2 (DN 65) and Larger: Iron swing check valves with lever and weight or

with spring or iron, center-guided, metal-seat check valves.

B. If valves with specified SWP classes or CWP ratings are not available, the same types of valveswith higher SWP classes or CWP ratings may be substituted.

C. Select valves, except wafer types, with the following end connections:1. For Steel Piping, NPS 2 (DN 50) and Smaller: Threaded ends.2. For Steel Piping, NPS 2-1/2 to NPS 4 (DN 65 to DN 100): Flanged ends except where

threaded valve-end option is indicated in valve schedules below.3. For Steel Piping, NPS 5 (DN 125) and Larger: Flanged ends.

3.5 HYDRONIC VALVE SCHEDULE

A. Pipe NPS 2 (DN 50) and Smaller:

1. Bronze Valves: May be provided with solder-joint ends instead of threaded ends.2 Ball Valves: Two piece full port bronze with stainless steel trim


3. Iron Swing Check Valves: Class 125, metal seats.



g ,





SECTION 15127 - METERS AND GAGES FOR HVAC PIPING

PART 1 - GENERAL



1.2 SUMMARY

A. Section Includes:1. Liquid-in-glass thermometers.2. Thermowells.3. Dial-type pressure gages.

1.3 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Operation and Maintenance Data: For meters and gages to include in operation andmaintenance manuals.

PART 2 - PRODUCTS

2.1 THERMOMETERS

A. Metal-Case, Industrial-Style, Liquid-in-Glass Thermometers:

1. Standard: ASME B40.200.2. Case: Cast aluminum; 9-inch (229-mm) nominal size unless otherwise indicated.

3.

Case Form: Adjustable angle unless otherwise indicated.4. Tube: Glass with magnifying lens and blue or red organic liquid.5. Tube Background: Nonreflective aluminum with permanently etched scale markings

graduated in deg F (deg C).6. Window: Glass.7 Stem: Aluminum and of length to suit installation


2.2 PRESSURE GAGES



A. Direct-Mounted, Metal-Case, Dial-Type Pressure Gages:

1. Standard: ASME B40.100.2. Case: Liquid-filled type(s); cast aluminum or drawn steel; 4-1/2-inch (114-mm) nominal

diameter.3. Pressure-Element Assembly: Bourdon tube unless otherwise indicated.4. Pressure Connection: Brass, with NPS 1/4 or NPS 1/2 (DN 8 or DN 15), ASME B1.20.1

pipe threads and bottom-outlet type unless back-outlet type is indicated.5. Movement: Mechanical, with link to pressure element and connection to pointer.6. Dial: Nonreflective aluminum with permanently etched scale markings graduated in psi

(kPa).7. Pointer: Dark-colored metal.8. Window: Glass.9. Ring: Metal.10. Accuracy: Grade C, plus or minus 3 percent of middle half of scale range.

2.3 GAGE ATTACHMENTS

A. Snubbers: ASME B40.100, brass; with NPS 1/4 or NPS 1/2 (DN 8 or DN 15), ASME B1.20.1pipe threads and [piston] [porous-metal]-type surge-dampening device. Include extension foruse on insulated piping.

B. Valves: Brass ball, with NPS 1/4 or NPS 1/2 (DN 8 or DN 15), ASME B1.20.1 pipe threads.

2.4 THERMOWELLS

A. Thermowells:

1. Standard: ASME B40.200.2. Description: Pressure-tight, socket-type fitting made for insertion into piping tee fitting.3. Material for Use with Copper Tubing: CNR or CUNI.4. Material for Use with Steel Piping: CRES or CSA.5. Type: Stepped shank unless straight or tapered shank is indicated.6. External Threads: NPS 1/2, NPS 3/4, or NPS 1, (DN 15, DN 20, or NPS 25,)

ASME B1.20.1 pipe threads.7. Internal Threads: 1/2, 3/4, and 1 inch (13, 19, and 25 mm), with ASME B1.1 screw

threads.8. Bore: Diameter required to match thermometer bulb or stem.9. Insertion Length: Length required to match thermometer bulb or stem.


PART 3 - EXECUTION



3.1 INSTALLATION

A. Install thermowells with socket extending a minimum of 2 inches (51 mm) into fluid and invertical position in piping tees.

B. Install thermowells of sizes required to match thermometer connectors. Include bushings if required to match sizes.

C. Install thermowells with extension on insulated piping.

D. Fill thermowells with heat-transfer medium.

E. Install direct-mounted thermometers in thermowells and adjust vertical and tilted positions.

F. Install duct-thermometer mounting brackets in walls of ducts. Attach to duct with screws.

G. Install direct-mounted pressure gages in piping tees with pressure gage located on pipe at themost readable position.

H. Install valve and snubber in piping for each pressure gage for fluids (except steam).

I. Install thermometers in the following locations:1. Inlet and outlet of each hydronic boiler.2. Two inlets and two outlets of each chiller.

J. Install pressure gages in the following locations:1. Inlet and outlet of each chiller chilled-water and condenser-water connection.2. Suction and discharge of each pump.

3.2 ADJUSTING

A. After installation, calibrate meters according to manufacturer's written instructions.

B. Adjust faces of meters and gages to proper angle for best visibility.

3.3 THERMOMETER SCALE-RANGE SCHEDULE

A. Scale Range for Hydronic Piping: 0 to 250 deg F (0 to 150 deg C).


SECTION 15181 HYDRONIC PIPING



SECTION 15181 - HYDRONIC PIPING

PART 1 - GENERAL



1.2 SUMMARY

A. This Section includes pipe and fitting materials, joining methods, special-duty valves, andspecialties for the following:1. Hydronic water piping.2. Makeup-water piping.3. Safety-valve-inlet and -outlet piping.


1. Division 15 Section "Hydronic Pumps" for pumps, motors, and accessories for hydronicpiping.

1.3 SUBMITTALS

A. Product Data: For each type of the following:1. Valves. Include flow and pressure drop curves based on manufacturer's testing for

calibrated-orifice balancing valves and automatic flow-control valves.2. Air control devices.3. Chemical treatment.4. Hydronic specialties.


C.

Field quality-control test reports.

D. Operation and Maintenance Data: For air control devices, hydronic specialties, and special-dutyvalves to include in emergency, operation, and maintenance manuals.


1. Comply with provisions in ASME B31 Series, "Code for Pressure Piping."2 Certify that each welder has passed AWS qualification tests for welding processes



2. Certify that each welder has passed AWS qualification tests for welding processesinvolved and that certification is current.

C. ASME Compliance: Comply with ASME B31.9, "Building Services Piping," for materials,products, and installation. Safety valves and pressure vessels shall bear the appropriate ASMElabel. Fabricate and stamp air separators and expansion tanks to comply with ASME Boiler andPressure Vessel Code: Section VIII, Division 01.

1.5 EXTRA MATERIALS

A. Water-Treatment Chemicals: Furnish enough chemicals for initial system startup and forpreventive maintenance for one year from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 STEEL PIPE AND FITTINGS

A. Steel Pipe: ASTM A 53/A 53M, black steel with plain ends; type, grade, and wall thickness asindicated in Part 3 "Piping Applications" Article.

B. Malleable-Iron Threaded Fittings: ASME B16.3, Classes 150 and 300 as indicated in Part 3"Piping Applications" Article.

C. Malleable-Iron Unions: ASME B16.39; Classes 150, 250, and 300 as indicated in Part 3"Piping Applications" Article.

D. Cast-Iron Pipe Flanges and Flanged Fittings: ASME B16.1, Classes 25, 125, and 250; raisedground face, and bolt holes spot faced as indicated in Part 3 "Piping Applications" Article.

E. Wrought-Steel Fittings: ASTM A 234/A 234M, wall thickness to match adjoining pipe.

F. Wrought Cast- and Forged-Steel Flanges and Flanged Fittings: ASME B16.5, including bolts,nuts, and gaskets of the following material group, end connections, and facings:

1.

Material Group: 1.1.2. End Connections: Butt welding.3. Facings: Raised face.

G. Steel Pipe Nipples: ASTM A 733, made of same materials and wall thicknesses as pipe inwhich they are installed


C. Dielectric Couplings:



1. Galvanized-steel coupling with inert and noncorrosive thermoplastic lining; threadedends; and 300-psig (2070-kPa) minimum working pressure at 225 deg F (107 deg C).

D. Dielectric Nipples:

1. Electroplated steel nipple with inert and noncorrosive, thermoplastic lining; plain,threaded, or grooved ends; and 300-psig (2070-kPa) minimum working pressure at 225deg F (107 deg C).

2.3

VALVES

A. Gate, Globe, Check, Ball, and Butterfly Valves: Comply with requirements specified inDivision 15 Section "General-Duty Valves for HVAC Piping."

B. Automatic Temperature-Control Valves, Actuators, and Sensors: Comply with requirementsspecified in Division 15 Section "Instrumentation and Control for HVAC."

C. Cast-Iron or Steel, Calibrated-Orifice, Balancing Valves:

1. Body: Cast-iron or steel body, ball, plug, or globe pattern with calibrated orifice orventuri.

2. Ball: Brass or stainless steel.3. Stem Seals: EPDM O-rings.4. Disc: Glass and carbon-filled PTFE.5. Seat: PTFE.6. End Connections: Flanged or grooved.7. Pressure Gage Connections: Integral seals for portable differential pressure meter.8. Handle Style: Lever, with memory stop to retain set position.9. CWP Rating: Minimum 125 psig (860 kPa).10. Maximum Operating Temperature: 250 deg F (121 deg C).

2.4 AIR CONTROL DEVICES

A. Automatic Air Vents:

1. Body: Bronze or cast iron.2. Internal Parts: Nonferrous.3. Operator: Noncorrosive metal float.4. Inlet Connection: NPS 1/2 (DN 15).5 Di h C i NPS 1/4 (DN 8)


installed and labeled according to ASME Boiler and Pressure Vessel Code: Section VIII,Division 1.



Division 1.2. Bladder: Securely sealed into tank to separate air charge from system water to maintain

required expansion capacity.3. Air-Charge Fittings: Schrader valve, stainless steel with EPDM seats.

C. Tangential-Type Air Separators:

1. Tank: Welded steel; ASME constructed and labeled for 125-psig (860-kPa) minimumworking pressure and 375 deg F (191 deg C) maximum operating temperature.

2. Air Collector Tube: Perforated stainless steel, constructed to direct released air intoexpansion tank.

3. Tangential Inlet and Outlet Connections: Threaded for NPS 2 (DN 50) and smaller;flanged connections for NPS 2-1/2 (DN 65) and larger.4. Blowdown Connection: Threaded.5. Size: Match system flow capacity.

2.5 CHEMICAL TREATMENT

A. Bypass Chemical Feeder: Welded steel construction; 125-psig (860-kPa) working pressure; 5-gal. (19-L) capacity; with fill funnel and inlet, outlet, and drain valves.

1. Chemicals: Specially formulated, based on analysis of makeup water, to preventaccumulation of scale and corrosion in piping and connected equipment.

2.6 HYDRONIC PIPING SPECIALTIES

A. Y-Pattern Strainers:

1. Body: ASTM A 126, Class B, cast iron with bolted cover and bottom drain connection.2. End Connections: Threaded ends for NPS 2 (DN 50) and smaller; flanged ends for

NPS 2-1/2 (DN 65) and larger.3. Strainer Screen: 40-mesh startup strainer, and perforated stainless-steel basket with 50

percent free area.4. CWP Rating: 125 psig (860 kPa).

B. Stainless-Steel Bellow, Flexible Connectors:

1. Body: Stainless-steel bellows with woven, flexible, bronze, wire-reinforcing protective jacket.

2. End Connections: Threaded or flanged to match equipment connected.f f


PART 3 - EXECUTION



3.1 PIPING APPLICATIONS

A. Hydronic piping, aboveground, NPS 2 (DN 50) and smaller, shall be the following:1. Schedule 40 steel pipe; Class [125, cast-iron] [150, malleable-iron] [250, cast-iron]

fittings; cast-iron flanges and flange fittings; and threaded joints.

B. Hydronic piping, aboveground, NPS 2-1/2 (DN 65) and larger, shall be the following:1. Schedule 40 steel pipe, wrought-steel fittings and wrought-cast or forged-steel flanges

and flange fittings, and welded and flanged joints.

C. Blowdown-Drain Piping: Same materials and joining methods as for piping specified for theservice in which blowdown drain is installed.

D. Safety-Valve-Inlet and -Outlet Piping for Hot-Water Piping: Same materials and joiningmethods as for piping specified for the service in which safety valve is installed with metal-to-plastic transition fittings for plastic piping systems according to the piping manufacturer'swritten instructions.

3.2 VALVE APPLICATIONS

A. Install shutoff-duty valves at each branch connection to supply mains, and at supply connectionto each piece of equipment.

B. Install check valves at each pump discharge and elsewhere as required to control flow direction.

C. Install safety valves at hot-water generators and elsewhere as required by ASME Boiler andPressure Vessel Code. Install drip-pan elbow on safety-valve outlet and pipe without valves tothe outdoors; and pipe drain to nearest floor drain or as indicated on Drawings. Comply withASME Boiler and Pressure Vessel Code: Section VIII, Division 1, for installationrequirements.

D. Install pressure-reducing valves at makeup-water connection to regulate system fill pressure.

3.3

PIPING INSTALLATIONS

A. Drawing plans, schematics, and diagrams indicate general location and arrangement of pipingsystems. Indicate piping locations and arrangements if such were used to size pipe andcalculate friction loss, expansion, pump sizing, and other design considerations. Install piping

i di t d l d i ti t l t d C di ti D i


D. Install piping above accessible ceilings to allow sufficient space for ceiling panel removal.



E. Install piping to permit valve servicing.

F. Install piping at indicated slopes.

G. Install piping free of sags and bends.

H. Install fittings for changes in direction and branch connections.

I. Install piping to allow application of insulation.

J.

Select system components with pressure rating equal to or greater than system operatingpressure.

K. Install groups of pipes parallel to each other, spaced to permit applying insulation and servicingof valves.

L. Install drains, consisting of a tee fitting, NPS 3/4 (DN 20) ball valve, and short NPS 3/4(DN 20) threaded nipple with cap, at low points in piping system mains and elsewhere asrequired for system drainage.

M. Install piping at a uniform grade of 0.2 percent upward in direction of flow.

N. Reduce pipe sizes using eccentric reducer fitting installed with level side up.

O. Install branch connections to mains using tee fittings in main pipe, with the branch connected tothe bottom of the main pipe. For up-feed risers, connect the branch to the top of the main pipe.

P. Install valves according to Division 15 Section "General-Duty Valves for HVAC Piping."

Q. Install unions in piping, NPS 2 (DN 50) and smaller, adjacent to valves, at final connections of equipment, and elsewhere as indicated.

R. Install flanges in piping, NPS 2-1/2 (DN 65) and larger, at final connections of equipment andelsewhere as indicated.

S. Install strainers on inlet side of each control valve, pressure-reducing valve, solenoid valve, in-

line pump, and elsewhere as indicated. Install NPS 3/4 (DN 20) nipple and ball valve inblowdown connection of strainers NPS 2 (DN 50) and larger. Match size of strainer blowoff connection for strainers smaller than NPS 2 (DN 50).

T. Identify piping as specified in Division 15 Section "Identification for HVAC Piping andEquipment "


B. Install the following pipe attachments:



1. Adjustable steel clevis hangers for individual horizontal piping less than 20 feet (6 m)long.

2. Adjustable roller hangers and spring hangers for individual horizontal piping 20 feet(6 m) or longer.

3. Pipe Roller: MSS SP-58, Type 44 for multiple horizontal piping 20 feet (6 m) or longer,supported on a trapeze.

4. Spring hangers to support vertical runs.

C. Install hangers for steel piping with the following maximum spacing and minimum rod sizes:

1.

NPS 3/4 (DN 20): Maximum span, 7 feet (2.1 m); minimum rod size, 1/4 inch (6.4 mm).2. NPS 1 (DN 25): Maximum span, 7 feet (2.1 m); minimum rod size, 1/4 inch (6.4 mm).3. NPS 1-1/2 (DN 40): Maximum span, 9 feet (2.7 m); minimum rod size, 3/8 inch (10

mm).4. NPS 2 (DN 50): Maximum span, 10 feet (3 m); minimum rod size, 3/8 inch (10 mm).5. NPS 2-1/2 (DN 65): Maximum span, 11 feet (3.4 m); minimum rod size, 3/8 inch (10

mm).6. NPS 3 (DN 80): Maximum span, 12 feet (3.7 m); minimum rod size, 3/8 inch (10 mm).7. NPS 4 (DN 100): Maximum span, 14 feet (4.3 m); minimum rod size, 1/2 inch (13 mm).8. NPS 6 (DN 150): Maximum span, 17 feet (5.2 m); minimum rod size, 1/2 inch (13 mm).9. NPS 8 (DN 200): Maximum span, 19 feet (5.8 m); minimum rod size, 5/8 inch (16 mm).

D. Support vertical runs at roof, at each floor, and at 10-foot (3-m) intervals between floors.

3.5 PIPE JOINT CONSTRUCTION

A. Join pipe and fittings according to the following requirements and Division 15 Sectionsspecifying piping systems.

B. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe.

C. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings beforeassembly.

D. Threaded Joints: Thread pipe with tapered pipe threads according to ASME B1.20.1. Cut

threads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restorefull ID. Join pipe fittings and valves as follows:

1. Apply appropriate tape or thread compound to external pipe threads unless dry sealthreading is specified.


3.6 HYDRONIC SPECIALTIES INSTALLATION

ll l h h h f l d l h d



A. Install manual air vents at high points in piping, at heat-transfer coils, and elsewhere as requiredfor system air venting.

B. Install automatic air vents at high points of system piping in mechanical equipment rooms only.Manual vents at heat-transfer coils and elsewhere as required for air venting.

C. Install piping from boiler air outlet, air separator, or air purger to expansion tank with a 2percent upward slope toward tank.

D. Install tangential air separator in pump suction. Install blowdown piping with gate or full-port

ball valve; extend full size to nearest floor drain.E. Install bypass chemical feeders in each hydronic system where indicated, in upright position

with top of funnel not more than 48 inches (1200 mm) above the floor. Install feeder inminimum NPS 3/4 (DN 20) bypass line, from main with full-size, full-port, ball valve in themain between bypass connections. Install NPS 3/4 (DN 20) pipe from chemical feeder drain, tonearest equipment drain and include a full-size, full-port, ball valve.

F. Install expansion tanks on the floor. Vent and purge air from hydronic system, and ensure tank

is properly charged with air to suit system Project requirements.

3.7 CHEMICAL TREATMENT

A. Perform an analysis of makeup water to determine type and quantities of chemical treatmentneeded to keep system free of scale, corrosion, and fouling, and to sustain the following watercharacteristics:

1. pH: 9.0 to 10.5.2. Corrosion Inhibitor:

a. Molybdate: 200 to 300 ppm.

B. Fill system with fresh water and add liquid alkaline compound with emulsifying agents anddetergents to remove grease and petroleum products from piping. Circulate solution for aminimum of 24 hours, drain, clean strainer screens, and refill with fresh water.

C.

Add initial chemical treatment and maintain water quality in ranges noted above for the firstyear of operation.

3.8 FIELD QUALITY CONTROL


4. Isolate equipment from piping. If a valve is used to isolate equipment, its closure shall becapable of sealing against test pressure without damage to valve. Install blinds in flangedj i i l i



joints to isolate equipment.5. Install safety valve, set at a pressure no more than one-third higher than test pressure, to

protect against damage by expanding liquid or other source of overpressure during test.

B. Perform the following tests on hydronic piping:

1. Use ambient temperature water as a testing medium unless there is risk of damage due tofreezing. Another liquid that is safe for workers and compatible with piping may beused.

2. While filling system, use vents installed at high points of system to release air. Use

drains installed at low points for complete draining of test liquid.3. Isolate expansion tanks and determine that hydronic system is full of water.4. Subject piping system to hydrostatic test pressure that is not less than 1.5 times the

system's working pressure. Test pressure shall not exceed maximum pressure for anyvessel, pump, valve, or other component in system under test. Verify that stress due topressure at bottom of vertical runs does not exceed 90 percent of specified minimumyield strength or 1.7 times "SE" value in Appendix A in ASME B31.9, "BuildingServices Piping."

5. After hydrostatic test pressure has been applied for at least 10 minutes, examine piping, joints, and connections for leakage. Eliminate leaks by tightening, repairing, or replacingcomponents, and repeat hydrostatic test until there are no leaks.

6. Prepare written report of testing.

C. Perform the following before operating the system:

1. Open manual valves fully.2. Inspect pumps for proper rotation.

3.

Set makeup pressure-reducing valves for required system pressure.4. Inspect air vents at high points of system and determine if all are installed and operatingfreely (automatic type), or bleed air completely (manual type).

5. Set temperature controls so all coils are calling for full flow.6. Inspect and set operating temperatures of hydronic equipment, such as boilers, chillers,

cooling towers, to specified values.7. Verify lubrication of motors and bearings.



SECTION 15185 - HYDRONIC PUMPS



PART 1 - GENERAL



1.2 SUMMARY


1. Close-coupled, in-line centrifugal pumps.2. Separately coupled, base-mounted, end-suction centrifugal pumps.

1.3

DEFINITIONS

A. Buna-N: Nitrile rubber.

1.4 SUBMITTALS

A. Product Data: Include certified performance curves and rated capacities, operatingcharacteristics, furnished specialties, final impeller dimensions, and accessories for each type of

product indicated. Indicate pump's operating point on curves.

B. Operation and Maintenance Data: For pumps to include in emergency, operation, andmaintenance manuals.


A. Source Limitations: Obtain hydronic pumps through one source from a single manufacturer.

B. Product Options: Drawings indicate size, profiles, and dimensional requirements of hydronicpumps and are based on the specific system indicated. Refer to Division 01 Section "ProductRequirements."



A Manufacturer's Preparation for Shipping: Clean flanges and exposed machined metal surfaces



A. Manufacturer s Preparation for Shipping: Clean flanges and exposed machined metal surfacesand treat with anticorrosion compound after assembly and testing. Protect flanges, pipeopenings, and nozzles with wooden flange covers or with screwed-in plugs.

B. Store pumps in dry location.

C. Retain protective covers for flanges and protective coatings during storage.

D. Protect bearings and couplings against damage from sand, grit, and other foreign matter.

E. Comply with pump manufacturer's written rigging instructions.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. In other Part 2 articles where titles below introduce lists, the following requirements apply to

product selection:

1. Available Manufacturers: Subject to compliance with requirements, manufacturersoffering products that may be incorporated into the Work include, but are not limited to,manufacturers specified.

2.2 CLOSE-COUPLED, IN-LINE CENTRIFUGAL PUMPS

A. Available Manufacturers:1. Armstrong Pumps Inc.2. Bell & Gossett; Div. of ITT Industries.3. PACO Pumps.4. Taco, Inc.

B. Description: Factory-assembled and -tested, centrifugal, overhung-impeller, close-coupled, in-line pump as defined in HI 1.1-1.2 and HI 1.3; designed for installation with pump and motorshafts mounted horizontally or vertically. Rate pump for 125-psig (860-kPa) minimum workingpressure and a continuous water temperature of 200 deg F (93 deg C).

C. Pump Construction:

1 Casing: Radially split cast iron with replaceable bronze wear rings threaded gage


D. Motor: Single speed, with permanently lubricated ball bearings, unless otherwise indicated; andrigidly mounted to pump casing. Premium efficiency.



2.3 SEPARATELY COUPLED, BASE-MOUNTED, END-SUCTION CENTRIFUGAL PUMPS

A. Available Manufacturers:1. Armstrong Pumps Inc.2. Bell & Gossett; Div. of ITT Industries.3. PACO Pumps.4. Taco, Inc.

B.

Description: Factory-assembled and -tested, centrifugal, overhung-impeller, separately coupled,end-suction pump as defined in HI 1.1-1.2 and HI 1.3; designed for base mounting, with pumpand motor shafts horizontal. Rate pump for 175-psig (1204-kPa) minimum working pressureand a continuous water temperature of 200 deg F (93 deg C).

C. Pump Construction:

1. Casing: Radially split, cast iron, with threaded gage tappings at inlet and outlet, drainplug at bottom and air vent at top of volute, and flanged connections.

2. Impeller: ASTM B 584, cast bronze; statically and dynamically balanced, keyed to shaft,and secured with a locking cap screw. Trim impeller to match specified performance.

3. Pump Shaft: Steel, with copper-alloy shaft sleeve.4. Mechanical Seal: Carbon rotating ring against a ceramic seat held by a stainless-steel

spring, and Buna-N bellows and gasket.5. Pump Bearings: Grease-lubricated ball bearings contained in cast-iron housing with

grease fittings.

D. Shaft Coupling: Molded rubber insert and interlocking spider capable of absorbing vibration.Couplings shall be drop-out type to allow disassembly and removal without removing pumpshaft or motor.

E. Coupling Guard: Dual rated; ANSI B15.1, Section 8; OSHA 1910.219 approved; steel;removable; attached to mounting frame.

F. Mounting Frame: Welded-steel frame and cross members, factory fabricated fromASTM A 36/A 36M channels and angles. Fabricate to mount pump casing, coupling guard, and

motor.

G. Motor: Single speed, premium efficiency, with permanently lubricated ball bearings, unlessotherwise indicated; secured to mounting frame, with adjustable alignment.




2. Adjust metal supports or wedges until pump and driver shafts are level. Check couplingfaces and suction and discharge flanges of pump to verify that they are level and plumb.



3.4 ALIGNMENT

A. Align pump and motor shafts and piping connections after setting on foundation, grout has beenset and foundation bolts have been tightened, and piping connections have been made.

B. Comply with pump and coupling manufacturers' written instructions.

C. Adjust pump and motor shafts for angular and offset alignment by methods specified in HI 1.1-1.5, "Centrifugal Pumps for Nomenclature, Definitions, Application and Operation."

D. After alignment is correct, tighten foundation bolts evenly but not too firmly. Completely fillbaseplate with nonshrink, nonmetallic grout while metal blocks and shims or wedges are inplace. After grout has cured, fully tighten foundation bolts.

3.5 CONNECTIONS

A. Piping installation requirements are specified in other Division 15 Sections. Drawings indicategeneral arrangement of piping, fittings, and specialties.

B. Install piping adjacent to machine to allow service and maintenance.

C. Connect piping to pumps. Install valves that are same size as piping connected to pumps.

D. Install suction and discharge pipe sizes equal to or greater than diameter of pump nozzles.

E. Install check valve and throttling or triple-duty valve on discharge side of pumps.

F. Install Y-type strainer or suction diffuser and shutoff valve on suction side of pumps.

G. Install flexible connectors on suction and discharge sides of base-mounted pumps betweenpump casing and valves.

H. Install pressure gages on pump suction and discharge, at integral pressure-gage tapping, orinstall single gage with multiple input selector valve.

I. Install check valve and gate or ball valve on each condensate pump unit discharge.

J. Install electrical connections for power, controls, and devices.


3.6 STARTUP SERVICE

A. Engage a factory-authorized service representative to perform startup service.



1. Complete installation and startup checks according to manufacturer's written instructions.2. Check piping connections for tightness.3. Clean strainers on suction piping.4. Perform the following startup checks for each pump before starting:

a. Verify bearing lubrication.b. Verify that pump is free to rotate by hand and that pump for handling hot liquid is

free to rotate with pump hot and cold. If pump is bound or drags, do not operateuntil cause of trouble is determined and corrected.

c. Verify that pump is rotating in the correct direction.

5. Prime pump by opening suction valves and closing drains, and prepare pump foroperation.

6. Start motor.7. Open discharge valve slowly.



SECTION 15192 - FACILITY FUEL-OIL PIPING



PART 1 - GENERAL



1.2 SUMMARY

A. This Section includes fuel-oil distribution systems and the following:

1. Pipes, tubes, and fittings.2. Piping specialties.3. Valves.4. Fuel-transfer pumps.

1.3 SUBMITTALS

A. Product Data: For each type of product indicated. Include construction details, materialdescriptions, and dimensions of individual components and profiles. Also include, whereapplicable, rated capacities, operating characteristics, electrical characteristics, and furnishedspecialties and accessories.

1. Piping specialties.2. Valves: Include pressure rating, capacity, settings, and electrical connection data of

selected models.3. Fuel-oil transfer pumps.

B. Operation and Maintenance Data: For fuel-oil equipment and accessories to include inemergency, operation, and maintenance manuals.

C. Warranty: Sample of special warranty.


A Electrical Components Devices and Accessories: Listed and labeled as defined in NFPA 70



A. Deliver pipes and tubes with factory-applied end caps. Maintain end caps through shipping,t d h dli t t i d d d t t t f di t d b i d



storage, and handling to prevent pipe end damage and to prevent entrance of dirt, debris, andmoisture.

PART 2 - PRODUCTS

2.1 PIPES, TUBES, AND FITTINGS

A. See Part 3 piping schedule articles for where pipes, tubes, fittings, and joining materials areapplied in various services.

B. Steel Pipe: ASTM A 53/A 53M, black steel, Schedule 40, Type E or S, Grade B.

1. Malleable-Iron Threaded Fittings: ASME B16.3, Class 150, standard pattern.2. Unions: ASME B16.39, Class 150, malleable iron with brass-to-iron seat, ground joint,

and threaded ends.

2.2 PIPING SPECIALTIES

A. Flexible Connectors: Comply with UL 567.

a. Listed and labeled for aboveground and underground applications by an NRTLacceptable to authorities having jurisdiction.

b. Stainless-steel bellows with woven, flexible, bronze or stainless-steel, wire-reinforcing protective jacket.

c. Minimum Operating Pressure: 150 psig (1035 kPa).d. End Connections: Socket, flanged, or threaded end to match connected piping.e. Maximum Length: 30 inches (762 mm).f. Swivel end, 50-psig (345-kPa) maximum operating pressure.g. Factory-furnished anode.

B. Y-Pattern Strainers:

1. Body: ASTM A 126, Class B, cast iron with bolted cover and bottom drain connection.2. End Connections: Threaded ends for NPS 2 (DN 50) and smaller; flanged ends for

NPS 2-1/2 (DN 65) and larger.3. Strainer Screen: [60] [80]-mesh startup strainer, and perforated stainless-steel basket

with 50 percent free area.4 CWP R i 125 i (860 kP )


3. Strainer Screen: [60] [80]-mesh startup strainer, and perforated stainless-steel basketwith 50 percent free area.

4. CWP Rating: 125 psig (860 kPa).



D. Manual Air Vents:

1. Body: Bronze.2. Internal Parts: Nonferrous.3. Operator: Screwdriver or thumbscrew.4. Inlet Connection: NPS 1/2 (DN 15).5. Discharge Connection: NPS 1/8 (DN 6).6. CWP Rating: 150 psig (1035 kPa).7. Maximum Operating Temperature: 225 deg F (107 deg C).

2.3 MANUAL FUEL-OIL SHUTOFF VALVES

A. See valve schedule in Part 3 for where each valve type is applied in various services.

B. General Requirements for Metallic Valves, NPS 2 (DN 50) and Smaller for Liquid Service:Comply with UL 842.

1. CWP Rating: 125 psig (860 kPa).2. Threaded Ends: Comply with ASME B1.20.1.3. Dryseal Threads on Flare Ends: Comply with ASME B1.20.3.4. Tamperproof Feature: Locking feature for valves indicated in the valve schedule.5. Service Mark: Initials "WOG" shall be permanently marked on valve body.

C. Two-Piece, Full-Port, Bronze Ball Valves with Bronze Trim: MSS SP-110.

1. Body: Bronze, complying with ASTM B 584.2. Ball: Chrome-plated bronze.3. Stem: Bronze; blowout proof.4. Seats: Reinforced TFE; blowout proof.5. Packing: Threaded-body packnut design with adjustable-stem packing.6. Ends: Threaded, flared, or socket as indicated in the valve schedule.7. CWP Rating: 600 psig (4140 kPa).8. Service Mark: Initials "WOG" shall be permanently marked on valve body.

2.4 SPECIALTY VALVES

A. Pressure Relief Valves: Comply with UL 842.


7. Maximum Inlet Pressure: 150 psig (1035 kPa).8. Relief Pressure Setting: 60 psig (414 kPa).

B Oil Safety Valves: Comply with UL 842



B. Oil Safety Valves: Comply with UL 842.

1. Listed and labeled for fuel-oil service by an NRTL acceptable to authorities having jurisdiction.

2. Body: Brass, bronze, or cast steel.3. Springs: Stainless steel.4. Seat and Diaphragm: Nitrile rubber.5. Orifice: Stainless steel, interchangeable.6. Factory-Applied Finish: Baked enamel.7. Manual override port.8. Maximum Inlet Pressure: 60 psig (414 kPa).9. Maximum Outlet Pressure: 3 psig (21 kPa).

C. Emergency Shutoff Valves: Comply with UL 842.


2. Single poppet valve.

3. Body: ASTM A 126, cast iron.4. Disk: FPM.5. Poppet Spring: Stainless steel.6. Stem: Plated brass.7. O-Ring: FPM.8. Packing Nut: PTFE-coated brass.9. Fusible link to close valve at 165 deg F (74 deg C).10. Thermal relief to vent line pressure buildup due to fire.11. Air test port.12. Maximum Operating Pressure: 0.5 psig (3.45 kPa).

D. Mechanical Leak Detector: Comply with UL 842.


2. Body: ASTM A 126, cast iron.3. O-Rings: Elastomeric compatible with fuel oil.

4. Piston and Stem Seals: PTFE.5. Stem and Spring: Stainless steel.6. Piston Cylinder: Burnished brass.7. Indicated Leak Rate: Maximum 3 gph (3 mL/s) at 10 psig (69 kPa).8. Leak Indication: Reduced flow.


1. Manufacturers:a. Simplex or approved equal.

2 Base: Steel with pumps accessories and controls factory mounted



2. Base: Steel with pumps, accessories, and controls factory mounted.3. Pumps: Comply with HI M109, single-stage, carbon-vane, positive-displacement,

rotary type. Include steel gears; bronze bearings; steel shaft; mechanical seals;and built-in pressure relief bypass.

4. Drives: Gear reducer, or direct coupled.5. Piping: Steel with ferrous fittings and threaded joints.6. Strainer: Corrosion-resistant-metal-screen baskets.7. Controls:

a. Automatic pump alternator and automatic changeover to the lag pump if thelead pump fails.

b. Broken-line, oil shutoff feature.c. To control and indicate the following:

1) Start/stop pump set when required by DDC control system2) Operating status.3) Alarm off-normal status.

8.

Accessories:a. Pressure relief valve.b. Check valves.c. Pressure gauge on pump discharge.d. Vacuum gauge on pump suction.e. Door mounted disconnect switch with interlock.f. Pump running amber light.g. Power available green light.

h. Pump starters.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine roughing-in for fuel-oil piping system to verify actual locations of piping connectionsbefore equipment installation.

B. Proceed with installation only after unsatisfactory conditions have been corrected.


3.3 INDOOR PIPING INSTALLATION

A. Drawing plans, schematics, and diagrams indicate general location and arrangement of pipingsystems. Indicated locations and arrangements were used to size pipe and calculate friction



y g p p

loss, expansion, and other design considerations. Install piping as indicated unless deviations tolayout are approved on Coordination Drawings.

B. Arrange for pipe spaces, chases, slots, sleeves, and openings in building structure duringprogress of construction, to allow for mechanical installations.

C. Install piping in concealed locations unless otherwise indicated and except in equipment roomsand service areas.

D. Install piping indicated to be exposed and piping in equipment rooms and service areas at rightangles or parallel to building walls. Diagonal runs are prohibited unless specifically indicatedotherwise.

E. Install piping free of sags and bends.

F. Install fittings for changes in direction and branch connections.

G.

Verify final equipment locations for roughing-in.

H. Comply with requirements for equipment specifications in Division 15 Sections for roughing-inrequirements.

I. Use eccentric reducer fittings to make reductions in pipe sizes. Install fittings with level sidedown.

J. Connect branch piping from top or side of horizontal piping.

K. Install unions in pipes NPS 2 (DN 50) and smaller at final connection to each piece of equipment and elsewhere as indicated. Unions are not required on flanged devices.

L. Do not use fuel-oil piping as grounding electrode.

3.4 VALVE INSTALLATION

A. Install manual fuel-oil shutoff valves on branch connections to fuel-oil appliance.

B. Install valves in accessible locations.

C Protect valves from physical damage


3.5 PIPING JOINT CONSTRUCTION

A. Ream ends of pipes and tubes and remove burrs.



B. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings beforeassembly.

C. Threaded Joints: Thread pipe with tapered pipe threads according to ASME B1.20.1. Cutthreads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restorefull ID. Join pipe fittings and valves as follows:

1. Apply appropriate tape or thread compound to external pipe threads unless dry sealthreading is specified.

2. Damaged Threads: Do not use pipe or pipe fittings with threads that are corroded ordamaged. Do not use pipe sections that have cracked or open welds.

3.6 HANGER AND SUPPORT INSTALLATION

A. Pipe hanger and support and equipment support materials and installation requirements arespecified in Division 15 Section "Hangers and Supports."

B. Install hangers for horizontal steel piping with the following maximum spacing and minimumrod sizes:

1. NPS 1-1/4 (DN 32) and Smaller: Maximum span, 84 inches (2130 mm); minimum rodsize, 3/8 inch (10 mm).

2. NPS 1-1/2 (DN 40): Maximum span, 108 inches (2740 mm); minimum rod size, 3/8 inch(10 mm).

3. NPS 2 (DN 50): Maximum span, 10 feet (3 m); minimum rod size, 3/8 inch (10 mm).4. NPS 2-1/2 (DN 65): Maximum span, 11 feet (3.4 m); minimum rod size, 1/2 inch (13

mm).5. NPS 3 (DN 80): Maximum span, 12 feet (3.7 m); minimum rod size, 1/2 inch (13 mm).6. NPS 4 (DN 100): Maximum span, 13 feet (4 m); minimum rod size, 5/8 inch (16 mm).

C. Support vertical steel pipe at each floor and at spacing not greater than 15 feet (4.5 m).

3.7 FUEL-OIL PUMP INSTALLATION

A. Transfer Pumps:

1. Install pumps with access space for periodic maintenance including removal of motors,i ll d i


E. Install vacuum and pressure gage, upstream and downstream respectively, at each pump tomeasure the differential pressure across the pump.



3.8 CONNECTIONS

A. Install piping adjacent to equipment to allow service and maintenance.

B. Install unions, in piping NPS 2 (DN 50) and smaller, adjacent to each valve and at finalconnection to each piece of equipment having threaded pipe connection.

C. Connect piping to equipment with ball valve and union. Install union between valve andequipment.

D. Install flexible piping connectors at final connection to burners or oil-fired appliances that mustbe moved for maintenance access.


A. Tests and Inspections:

1. Piping: Minimum hydrostatic or pneumatic test-pressures measured at highest point insystem:

a. Fuel-Oil Distribution Piping: Minimum 5 psig (34.5 kPa) for minimum 30minutes.

b. Suction Piping: Minimum 20-in. Hg (68 kPa) for minimum [30] <Insert time>minutes.

c. Isolate storage tanks if test pressure in piping will cause pressure in storage tanksto exceed 10 psig (69 kPa).

2. Inspect and test fuel-oil piping according to NFPA 31, "Tests of Piping" Paragraph; andaccording to requirements of authorities having jurisdiction.

3. Start fuel-oil transfer pumps to verify for proper operation of pump and check for leaks.4. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and

equipment.5. Bleed air from fuel-oil piping using manual air vents.

B. Fuel-oil piping and equipment will be considered defective if it does not pass tests andinspections.

C P t t d i ti t


SECTION 15512 - CAST-IRON BOILERS



PART 1 - GENERAL



1.2 SUMMARY

A. This Section includes packaged cast-iron boilers, trim, and accessories for generating hot waterwith the following configurations and burners:

1. Field assembled.2. Forced-draft, gas burner.

1.3 SUBMITTALS

A. Product Data: Include performance data, operating characteristics, furnished specialties, andaccessories.

B. Shop Drawings: For boilers, boiler trim, and accessories. Include plans, elevations, sections,details, and attachments to other work.

1. Wiring Diagrams: Power, signal, and control wiring.

C. Operation and Maintenance Data: For boilers, components, and accessories to include inemergency, operation, and maintenance manuals.

D. Warranty: Special warranty specified in this Section.

E. Other Informational Submittals:

1. Startup service reports.

1 4 QUALITY ASSURANCE


C. I=B=R Compliance: Boilers shall be tested and rated according to HI's "Rating Procedure forHeating Boilers" and "Testing Standard for Commercial Boilers," with I=B=R emblem on anameplate affixed to boiler.



D. UL Compliance: Test boilers for compliance with UL 795, "Commercial-Industrial GasHeating Equipment." Boilers shall be listed and labeled by a testing agency acceptable toauthorities having jurisdiction.

1.5 WARRANTY

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair orreplace controls and heat exchangers of boilers that fail in materials or workmanship withinspecified warranty period.

1. Warranty Period for Controls: Two years from date of Substantial Completion.2. Warranty Period for Heat Exchangers: 10 years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 MANUFACTURERS


1. Burnham Hydronics.2. Crown Boiler Co.

3. Hydrotherm, Inc.; a division of Mestek, Inc.4. Peerless Boilers.5. Slant/Fin Corp.6. Smith Cast Iron Boilers.7. Weil-McLain; a United Dominion Company.

2.2 MANUFACTURED UNITS

A. Description: Factory fabricated and field assembled.

1. Cast-iron sections shall be sealed pressure tight and held together with tie rods; includinginsulated jacket and flue-gas vent connection.

2 Shi i i di bl d i h ll i l d i i l di l i


4. Drain and blowdown tappings.5. Return injection tube to equalize water flow to all sections.6. Crown inspection tappings with brass plugs.



C. Combustion Chamber: Equipped with flame observation ports, front and back.

D. Casing:

1. Jacket: sheet metal, with snap-in or interlocking closures and protective finish.2. Insulation: Minimum 2-inch- (50-mm-) thick, mineral-fiber insulation surrounding the

heat exchanger.3. Combustion Chamber Access: Refractory lined, hinged, front.4. Access: For cleaning between cast-iron sections.5. Draft Hood: Flue canopy and flue connection shall be constructed of aluminized or

stainless steel containing adjustable outlet damper assembly.6. Mounting Frame: Steel rails to mount assembled boiler package on concrete base.

7. Control Cabinet: Sheet metal casing shall cover all controls, gas train, and burner.

2.3

BURNER

A. Burner: Welded construction with multivane, stainless-steel, flame-retention diffuser fornatural gas.

B. Blower: Forward-curved centrifugal fan integral to burner, directly driven by motor; withadjustable, dual-blade damper assembly and locking quadrant to set air-fuel ratio.

1. Motors:

a. Motor Sizes: Minimum size as indicated. If not indicated, large enough so drivenload will not require motor to operate in service factor range above 1.0.

b. Effiency: Premium.

C. Secondary oil pump: Remotely fitted direct drive oil pump with controls or as required byburner manufacturer.

D. Electrical characteristics: As indicated on contract drawings.

E. Oil /Gas supply: Control devices as indicated on contract drawings.

F B i d L hi h l


I. Oil Supply: Control devices and low-high-low control sequence shall comply withrequirements in UL.1. Oil Piping Specialties:



a. Suction-line, manual, gate valve.b. Removable-mesh oil strainer.c. 0- to 30-inch Hg (0- to 101.3-kPa) vacuum; 0- to 30-psig (0- to 207-kPa) vacuum-

pressure gage.d. 0- to 300-psig (0- to 2070-kPa) oil-nozzle pressure gage.

J. Nozzle-line, solenoid-safety-shutoff oil valve.

2.4 TRIM

A. Include devices sized to comply with ANSI B31.9, "Building Services Piping."

B. Aquastat Controllers: Operating and high limit.

C. Safety Relief Valve: ASME rated.

D. Pressure and Temperature Gage: Minimum 3-1/2-inch- (89-mm-) diameter, combination water-pressure and -temperature gage. Gages shall have operating-pressure and -temperature rangesso normal operating range is about 50 percent of full range.

E. Boiler Air Vent: Manual.

F. Drain Valve: Minimum NPS 3/4 (DN 20) hose-end gate valve.

2.5 CONTROLS

A. Boiler operating controls shall include the following devices and features:

1. Control transformer.2. Set-Point Adjust: Set points shall be adjustable.3. Low-Water Cutoff and Pump Control: Cycle feedwater pump(s) for makeup water

control.4. Sequence of Operation: Electric, factory-fabricated and field-installed panel to control

burner firing rate to maintain supply water temperature.

B. Burner Operating Controls: To maintain safe operating conditions, burner safety controls limitb i




C. Assemble boiler sections in sequence and seal between each section.

D. Assemble and install boiler trim.



E. Install electrical devices furnished with boiler but not specified to be factory mounted.

F. Install control wiring to field-mounted electrical devices.

3.3 CONNECTIONS


B. Install piping adjacent to boiler to allow service and maintenance.

C. Connect oil piping full size to burner inlet with shutoff valve and union.

D. Connect hot-water piping to supply- and return-boiler tappings with shutoff valve and union orflange at each connection.

E. Install piping from safety relief valves to nearest floor drain.

F. Connect breeching full size to boiler outlet. Comply with requirements in Division 15 Section"Breechings, Chimneys, and Stacks" for venting materials.

G. Ground equipment according to Division 16 Section "Grounding and Bonding for ElectricalSystems."

H. Connect wiring according to Division 16 Section "Low-Voltage Electrical Power Conductorsand Cables."


A. Perform tests and inspections and prepare test reports.

1. Manufacturer's Field Service: Engage a factory-authorized service representative toinspect components, assemblies, and equipment installations, including connections, andto assist in testing.

B. Tests and Inspections:


a. Burner Test: Adjust burner to eliminate excess oxygen, carbon dioxide, oxides of nitrogen emissions, and carbon monoxide in flue gas and to achieve combustionefficiency.

b Check and adj st initial operating set points and high and lo limit safet set



b. Check and adjust initial operating set points and high- and low-limit safety setpoints of fuel supply, water level and water temperature.

c. Set field-adjustable switches and circuit-breaker trip ranges as indicated.

C. Remove and replace malfunctioning units and retest as specified above.

3.5 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel toadjust, operate, and maintain boilers.



SECTION 15550 - BREECHINGS, CHIMNEYS, AND STACKS

PART 1 GENERAL



PART 1 - GENERAL



1.2 SUMMARY

A. This Section includes the following:1. Listed double-wall vents.2. Barometric dampers.


1. Division 23 Section "Draft Control Devices" for induced-draft and mechanical fans andfor motorized and barometric dampers.

1.3 SUBMITTALS

A. Product Data: For the following:1. Listed double-wall vents.2. Barometric dampers.


C. Warranty: Special warranty specified in this Section.


A. Source Limitations: Obtain listed system components through one source from a single

manufacturer.

1.5 WARRANTY


PART 2 - PRODUCTS

2.1 LISTED BUILDING-HEATING-APPLIANCE CHIMNEYS

A A il bl M f S bj li i h i f ff i




1. Heat-Fab, Inc.2. Metal-Fab, Inc.3. Selkirk Inc.; Selkirk Metalbestos and Air Mate.

B. Description: Double-wall metal vents tested according to UL 103 and rated for 1000 deg F (538deg C) continuously, or 1700 deg F (926 deg C) for 10 minutes; with neutral or negative fluepressure complying with NFPA 211.

C. Construction: Inner shell and outer jacket separated by at least a 1-inch (50-mm) annularspace filled with high-temperature, ceramic-fiber insulation.

D. Inner Shell: ASTM A 666, Type 304 stainless steel.

E. Outer Jacket: Galvanized or Aluminized steel.

F. Accessories: Tees, elbows, increasers, draft-hood connectors, terminations, adjustable roof flashings, storm collars, support assemblies, thimbles, firestop spacers, and fasteners; fabricatedfrom similar materials and designs as vent-pipe straight sections; all listed for same assembly.

1. Termination: Stack cap designed to exclude minimum 90 percent of rainfall.

2.2

BAROMETRIC DAMPERS

A. Damper Construction: High-temperature-enamel-painted steel damper and housing withgalvanized-steel breeching connection. Adjustable counterweight with lock. Include knife-edge bearings that do not require lubrication.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas and conditions for compliance with requirements for installation tolerances andother conditions affecting performance of work


B. Seal between sections of positive-pressure vents and grease exhaust ducts according tomanufacturer's written installation instructions, using sealants recommended by manufacturer.

C. Support vents at intervals recommended by manufacturer to support weight of vents and all

accessories, without exceeding appliance loading.



accessories, without exceeding appliance loading.

D. Lap joints in direction of flow.

E. Connect base section to foundation using anchor lugs of size and number recommended bymanufacturer.

F. Join sections with acid-resistant joint cement to provide continuous joint and smooth interiorfinish.

G. Erect stacks plumb to finished tolerance of no more than 1 inch (25 mm) out of plumb from topto bottom.

3.3 CLEANING

A. After completing system installation, including outlet fittings and devices, inspect exposedfinish. Remove burrs, dirt, and construction debris and repair damaged finishes.

B. Clean breechings internally, during and after installation, to remove dust and debris. Cleanexternal surfaces to remove welding slag and mill film. Grind welds smooth and apply touchupfinish to match factory or shop finish.

C. Provide temporary closures at ends of breechings, chimneys, and stacks that are not completedor connected to equipment.





3. Fire-Hazard Classification: Maximum flame-spread index of 25 and smoke-developedindex of 50 when tested according to ASTM E 84.

4. Adhesive: Comply with ASTM C 916 and with NFPA 90A or NFPA 90B.5. Airstream Surfaces: Surfaces in contact with the airstream shall comply with

requirements in ASHRAE 62.1-2004.



q

D. Cabinet: Steel with baked-enamel finish with manufacturer's standard paint, in color selectedby Architect.

1. Vertical Unit, Exposed Front Panels: Minimum 0.0528-inch- (1.35-mm-) thick, sheetsteel, removable panels with channel-formed edges secured with tamperproof camfasteners.

2. Horizontal Unit, Exposed Bottom Panels: Minimum 0.0528-inch- (1.35-mm-) thick,sheet steel, removable panels secured with tamperproof cam fasteners and safety chain.

3. Recessing Flanges: Steel, finished to match cabinet.4. Control Access Door: Key operated.

E. Filters: Minimum arrestance according to ASHRAE 52.1 and a minimum efficiency reportingvalue (MERV) according to ASHRAE 52.2.1. Glass Fiber Treated with Adhesive: 80 percent arrestance and 5 MERV.

F.

Hot-Water Coil: Copper tube, with mechanically bonded aluminum fins spaced no closer than0.1 inch (2.5 mm) and rated for a minimum working pressure of 200 psig (1378 kPa) and amaximum entering-water temperature of 220 deg F (104 deg C). Include manual air vent anddrain.

G. Fan and Motor Board: Removable.

1. Fan: Forward curved, double width, centrifugal; directly connected to motor.Thermoplastic or painted-steel wheels, and aluminum, painted-steel, or galvanized-steel

fan scrolls.2. Wiring Terminations: Connect motor to chassis wiring with plug connection.

H. Factory, Hot-Water Piping Package: ASTM B 88, Type L (ASTM B 88M, Type B) copper tubewith wrought-copper fittings and brazed joints. Label piping to indicate service, inlet andoutlet.

1. Two-way, two-position control valve.

2. Two-Piece, Ball Valves: Bronze body with full-port, chrome-plated bronze ball; PTFE orTFE seats; and 600-psig (4140-kPa) minimum CWP rating and blowout-proof stem.

3. Automatic Flow-Control Valve: Brass or ferrous-metal body, 300-psig (2068-kPa)working pressure at 250 deg F (121 deg C), with removable, corrosion-resistant,


I. Control devices and operational sequences are specified in Division 15 Sections"Instrumentation and Control for HVAC" and “Sequence of Operation.”

PART 3 - EXECUTION



3.1 EXAMINATION

A. Examine areas to receive unit heaters for compliance with requirements for installationtolerances and other conditions affecting performance.

B. Examine roughing-in for piping and electrical connections to verify actual locations before unit

heater installation.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Install propeller unit heaters level and plumb.

B. Suspend propeller unit heaters from structure with all-thread hanger rods and elastomerichangers.

C. Install wall-mounting thermostats and switch controls in electrical outlet boxes at heights tomatch lighting controls. Verify location of thermostats and other exposed control sensors withDrawings and room details before installation.

3.3 CONNECTIONS


B. Install piping adjacent to machine to allow service and maintenance.

C. Unless otherwise indicated, install union and gate or ball valve on supply-water connection andunion and calibrated balancing valve on return-water connection of unit heater. Hydronic

specialties are specified in Division 15 Section "Hydronic Piping."



SECTION 15763 - FAN-COIL UNITS

PART 1 - GENERAL





1.2 SUMMARY

A. This Section includes fan-coil units and accessories.

1.3 DEFINITIONS

A. BAS: Building automation system.

1.4 SUBMITTALS

A. Product Data: Include rated capacities, operating characteristics, furnished specialties, andaccessories.

B. Shop Drawings: Detail equipment assemblies and indicate dimensions, weights, loads, requiredclearances, method of field assembly, components, and location and size of each fieldconnection.

1. Wiring Diagrams: Power, signal, and control wiring.

C. Samples for Initial Selection: For units with factory-applied color finishes.

D. Field quality-control test reports.

E. Operation and Maintenance Data: For fan-coil units to include in emergency, operation, and

maintenance manuals. In addition to items specified in Division 1 Section "Operation andMaintenance Data," include the following:

1. Maintenance schedules and repair part lists for motors, coils, integral controls, and filters.


B. ASHRAE Compliance: Applicable requirements in ASHRAE 62.1-2004, Section 5 - "Systemsand Equipment" and Section 7 - "Construction and Startup."

PART 2 - PRODUCTS



2.1 MANUFACTURERS

A. In other Part 2 articles where titles below introduce lists, the following requirements apply toproduct selection:

B. In the Fan-Coil-Unit Schedule where titles below are column or row headings that introduce

lists, the following requirements apply to product selection:

1. Available Manufacturers: Subject to compliance with requirements, manufacturersoffering products that may be incorporated into the Work include, but are not limited to,manufacturers specified.

2.2 FAN-COIL UNITS

A. Available Manufacturers:1. Carrier Corporation.2. Engineered Air Ltd.3. Environmental Technologies, Inc.4. McQuay International.5. Trane.6. YORK International Corporation.

B.

Description: Factory-packaged and -tested units rated according to ARI 440, ASHRAE 33, andUL 1995.

C. Coil Section Insulation: 1/2-inch (13-mm) thick, matte-finish, closed-cell foam complying withASTM C 1071 and attached with adhesive complying with ASTM C 916.

1. Fire-Hazard Classification: Insulation and adhesive shall have a combined maximumflame-spread index of 25 and smoke-developed index of 50 when tested according toASTM E 84.

2. Airstream Surfaces: Surfaces in contact with the airstream shall comply withrequirements in ASHRAE 62.1-2004.

D. Main and Auxiliary Drain Pans: Insulated stainless steel main pan with plastic auxiliary pan.F b i d d i i l i h ASHRAE 62 1 2004


1. Vertical Unit Front Panels: Removable, steel, with integral stamped discharge grille andchannel-formed edges, cam fasteners, and insulation on back of panel.

2. Steel recessing flanges for recessing fan-coil units into ceiling or wall.

G.

Outdoor-Air Wall Box (provide where indicated on drawings): Minimum 0.1265-inch- (3.2-mm-) thick, aluminum, rain-resistant louver and box with integral eliminators and bird screen.



1. Louver Configuration: Horizontal, rain-resistant louver.2. Louver Material: Aluminum.3. Bird Screen: 1/2-inch (13-mm) mesh screen on interior side of louver.4. Decorative Grille: On outside of intake.5. Finish: Aluminum.

H. Outdoor-Air Damper: Galvanized-steel blades with edge and end seals and nylon bearings;with electronic, two-position actuators.

I. Filters: Minimum arrestance according to ASHRAE 52.1, and a minimum efficiency reportingvalue (MERV) according to ASHRAE 52.2.1. Pleated Cotton-Polyester Media: 90 percent arrestance and 7 MERV.

J. Hydronic Coils: Copper tube, with mechanically bonded aluminum fins spaced no closer than0.1 inch (2.5 mm), rated for a minimum working pressure of 200 psig (1378 kPa) and amaximum entering-water temperature of 220 deg F (104 deg C). Include manual air vent anddrain valve.

K. Fan and Motor Board: Removable.

1. Fan: Forward curved, double width, centrifugal; directly connected to motor.Thermoplastic or painted-steel wheels, and aluminum, painted-steel, or galvanized-steelfan scrolls.

2. Motor: Permanently lubricated, multispeed; resiliently mounted on motor board.Comply with requirements in Division 15 Section "Motors."3. Wiring Termination: Connect motor to chassis wiring with plug connection.

L. Factory, Hydronic Piping Package: ASTM B 88, Type L (ASTM B 88M, Type B) copper tubewith wrought-copper fittings and brazed joints. Label piping to indicate service, inlet, andoutlet.

1. Three-way, two-position control valve for dual-temperature coil.2. Hose Kits: Minimum 400-psig (2758-kPa) working pressure, and operating temperatures

from 33 to 211 deg F (0.5 to 99 deg C). Tag hose kits to equipment designations.

a. Length: 24 inches (600 mm).


5. Y-Pattern Hydronic Strainers: Cast-iron body (ASTM A 126, Class B); 125-psig (860-kPa) working pressure; with threaded connections, bolted cover, perforated stainless-steelbasket, and bottom drain connection. Include minimum NPS 1/2 (DN 15) hose-end, full-port, ball-type blowdown valve in drain connection.

6.

Wrought-Copper Unions: ASME B16.22.



M. Control devices and operational sequences are specified in Division 15 Sections"Instrumentation and Control for HVAC" and “Sequence of Operation.”

N. Electrical Connection: Factory wire motors and controls for a single electrical connection.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas to receive fan-coil units for compliance with requirements for installationtolerances and other conditions affecting performance.

B. Examine roughing-in for piping and electrical connections to verify actual locations before fan-coil-unit installation.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Install fan-coil units level and plumb.

B. Install fan-coil units to comply with NFPA 90A.

C. Install new filters in each fan-coil unit within two weeks after Substantial Completion.

3.3 CONNECTIONS

A. Piping installation requirements are specified in other Division 15 Sections. Drawings indicategeneral arrangement of piping, fittings, and specialties. Specific connection requirements are as

follows:

1. Install piping adjacent to machine to allow service and maintenance.2. Connect piping to fan-coil-unit factory hydronic piping package. Install piping package

if shipped loose



A. Perform the following field tests and inspections and prepare test reports:

1. Operational Test: After electrical circuitry has been energized, start units to confirmproper motor rotation and unit operation.

2 O l i h i l h h h if i d



2. Operate electric heating elements through each stage to verify proper operation andelectrical connections.

3. Test and adjust controls and safety devices. Replace damaged and malfunctioningcontrols and equipment.

B. Remove and replace malfunctioning units and retest as specified above.

3.5 ADJUSTING

A. Adjust initial temperature and humidity set points.

B. Occupancy Adjustments: When requested within 12 months of date of Substantial Completion,provide on-site assistance in adjusting system to suit actual occupied conditions. Provide up totwo visits to Project during other than normal occupancy hours for this purpose.



SECTION 15768-UNIT VENTILATORS

PART 1 GENERAL



PART 1 - GENERAL



1.2 SUMMARY

A. This Section includes unit ventilators and accessories with the following heating and coolingfeatures:

1. Hydronic cooling/ heating coil.

1.3 DEFINITIONS

A. BAS: Building automation system.

B. HGBP: Hot-gas bypass.

1.4 SUBMITTALS

A. Product Data: Include rated capacities, operating characteristics, and furnished specialties andaccessories for each unit type and configuration.

B. Field quality-control test reports.

C. Operation and Maintenance Data: For unit ventilators to include in emergency, operation, andmaintenance manuals. In addition to items specified in Division 1 Section "Operation and

Maintenance Data," include the following:

1. Maintenance schedules and repair part lists for motors, coils, integral controls, and filters.

D Warranty: Special warranty specified in this Section


B. Comply with NFPA 70.

C.

Comply with minimum COP/efficiency levels according to ASHRAE/IESNA 90.1.



1.6 COORDINATION

A. Coordinate size and location of wall sleeves for outdoor-air intake ief dampers.

1.7 WARRANTY

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair orreplace components of condensing units that fail in materials or workmanship within specifiedwarranty period.

1. Failures include, but are not limited to, the following:

a. Compressor failure.b. Condenser coil leak.

2. Warranty Period: Four years from date of Substantial Completion.3. Warranty Period (Compressor Only): Five years from date of Substantial Completion.4. Warranty Period (Condenser Coil Only): Five years from date of Substantial

Completion.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide products by one of thefollowing:

1. Carrier Corporation.2. Engineered Air Ltd.

3. McQuay International.4. Nesbitt Aire, Inc.; PEF Industries, Inc.5. Trane.


2.3 CABINETS

A.

Insulation: Minimum 1/2-inch (13-mm) thick, coated glass fiber complying withASTM C 1071 and attached with adhesive complying with ASTM C 916.



1. Fire-Hazard Classification: Insulation and adhesive shall have a combined maximumflame-spread index of 25 and smoke-developed index of 50 when tested according toASTM E 84.

B. Drain Pans: Insulated galvanized steel with plastic liner, formed to slope from all directions tothe drain connection as required by ASHRAE 62. Drain pan shall be removable.

C. Cabinet Frame and Access Panels: Welded-steel frame with removable panels fastened withhex-head tamperproof fasteners and key-operated control and valve access doors.

1. Steel components exposed to moisture shall be hot-dip galvanized after fabrication.

D. Cabinet Finish: Baked enamel, in manufacturer's standard paint color as selected by Architect.

E. Indoor-Supply-Air Grille: Steel, adjustable linear bar.

F. Return-Air Inlet: Front toe space.

G. End Panels: Matching material and finish of unit ventilator.

H. False back: 6 inch wide with baffles.

I. Outdoor-Air Wall Box: Minimum 0.1265-inch- (3.2-mm-) thick, aluminum, rain-resistant

louver and box with integral eliminators and bird screen.1. Louver Configuration: Horizontal rain-resistant louver.2. Louver Material: Steel.3. Bird Screen: 1/2-inch (13-mm) mesh screen on interior side of louver.4. Decorative Grille: On outside of intake.5. Finish: Baked enamel, color as selected by Architect from manufacturer's standard

colors.

2.4 COILS

A. Test and rate unit ventilator coils according to ASHRAE 33.


2.5 INDOOR FAN

A.

Fan and Motor Board: Removable.1 Fan: Forward curved double width centrifugal; directly connected to motor



1. Fan: Forward curved, double width, centrifugal; directly connected to motor.Thermoplastic or painted-steel wheels; and aluminum, painted-steel, or galvanized-steelfan scrolls.

2. Fan Shaft and Bearings: Hollow steel shaft with permanently lubricated, resilientlymounted bearings.

3. Motor: Permanently lubricated, multispeed, resiliently mounted on motor board.Comply with requirements in Division 15 Section "Motors."

4. Wiring Termination: Connect motor to chassis wiring with plug connection.

2.6 DAMPERS

A. Mixing Dampers: Galvanized-steel blades with edge and end seals and nylon bearings; withelectric actuator.

B. Outdoor-Air Dampers: Galvanized-steel blades with edge and end seals and nylon bearings;with electric actuator.

2.7 ACCESSORIES

A. Subbase: Sheet metal floor-mounting base with leveling screws and black enamel finish.

B. Insulated false back with gasket seals on wall and outdoor-air plenum.

1. Insulation: Minimum 1/2-inch (13-mm) thick, coated glass fiber complying withASTM C 1071 and attached with adhesive complying with ASTM C 916.

a. Fire-Hazard Classification: Insulation and adhesive shall have a combinedmaximum flame-spread index of 25 and smoke-developed index of 50 when testedaccording to ASTM E 84.

C. Return-air plenum, 6 inches (150 mm) thick, designed to take return air from top inlet grilles in

cabinets on both sides of unit ventilator with gasket seals on wall and outdoor-air plenumextension.

D. Filters: Minimum arrestance according to ASHRAE 52.1, and a minimum efficiency reporting


E. Factory, Hydronic Piping Package: ASTM B 88, Type L (ASTM B 88M, Type B) copper tubewith wrought-copper fittings and brazed joints. Label piping to indicate service, inlet, and

outlet.1. Three-way, two-position control valve for dual-temperature coil.



1. Three way, two position control valve for dual temperature coil.2. Hose Kits: Minimum 400-psig (2758-kPa) working pressure, and operating temperatures

from 33 to 211 deg F (0.5 to 99 deg C). Tag hose kits to equipment designations.

a. Length: 24 inches (600 mm).b. Minimum Diameter: Equal to fan-coil-unit connection size.

3. Two-Piece Ball Valves: Bronze body with full-port, chrome-plated bronze ball; PTFE orTFE seats; and 600-psig (4140-kPa) minimum CWP rating and blowout-proof stem.

4. Calibrated-Orifice Balancing Valves: Bronze body, ball type; 125-psig (860-kPa)working pressure, 250-deg F (121-deg C) maximum operating temperature; withcalibrated orifice or venturi, connections for portable differential pressure meter withintegral seals, threaded ends, and equipped with a memory stop to retain set position.

5. Y-Pattern Hydronic Strainers: Cast-iron body (ASTM A 126, Class B); 125-psig (860-kPa) working pressure; with threaded connections, bolted cover, perforated stainless-steelbasket, and bottom drain connection. Include minimum NPS 1/2 (DN 15) hose-end, full-port, ball-type blowdown valve in drain connection.

6. Wrought-Copper Unions: ASME B16.22.

2.8 BASIC UNIT CONTROLS

A. Control devices and operational sequences are specified in Division 15 Sections "HVACInstrumentation and Controls" and "Sequence of Operation."

B. Electrical Connection: Factory wire motors and controls for a single electrical connection.

2.9 CAPACITIES AND CHARACTERISTICS: As indicated on drawings.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas to receive unit ventilators for compliance with requirements for installation


3.2 INSTALLATION

A.

Install unit ventilators to comply with NFPA 90A.B. Suspend horizontal unit ventilators from structure with threaded steel rods and minimum 0.25-



pinch (6.35-mm) static-deflection, elastomeric vibration isolation hanger. Vibration isolators arespecified in Division 15 Section "Mechanical Vibration and Seismic Controls."

C. Verify location of thermostats, and other exposed control sensors with Drawings and roomdetails before installation. Install devices 48 inches (1220 mm) above finished floor.

D. Refer to Division 15 Section "Condensing Units" for condensing units matched to refrigerantcooling coil packaged in unit ventilators.

3.3 CONNECTIONS

A. Piping installation requirements are specified in other Division 15 Sections. Drawings indicategeneral arrangement of piping, fittings, and specialties. Specific connection requirements are asfollows:

1. Install piping adjacent to machine to allow service and maintenance.2. Provide condensate drain up to out side the wall.

B. Ground equipment according to Division 16 Section "Grounding and Bonding."

C. Connect wiring according to Division 16 Section "Conductors and Cables."


A. Manufacturer's Field Service: Engage a factory-authorized service representative toinspect, test, and adjust field-assembled components and equipment installation, includingconnections, and to assist in field testing. Report results in writing.

B. Perform the following field tests and inspections and prepare test reports:

1. Operational Test: After electrical circuitry has been energized, start units to confirmproper motor rotation and unit operation.

2. Operate electric heating elements through each stage to verify proper operation andelectrical connections.

d d l d f d l d d d lf




SECTION 15815 - METAL DUCTS

PART 1 - GENERAL

1 1 RELATED DOCUMENTS





1.2

SUMMARYA. This Section includes metal ducts for supply, return, outside, and exhaust air-distribution

systems in pressure classes from minus 2- to plus 10-inch wg (minus 500 to plus 2500 Pa).Metal ducts include the following:

1. Rectangular ducts and fittings.

PART 2 - PRODUCTS

2.1 SHEET METAL MATERIALS

A. Comply with SMACNA's "HVAC Duct Construction Standards--Metal and Flexible" foracceptable materials, material thicknesses, and duct construction methods, unless otherwiseindicated. Sheet metal materials shall be free of pitting, seam marks, roller marks, stains,discolorations, and other imperfections.

B. Galvanized Sheet Steel: Lock-forming quality; complying with ASTM A 653/A 653M andhaving G60 (Z180) coating designation; ducts shall have mill-phosphatized finish for surfacesexposed to view.

C. Tie Rods: Galvanized steel, 1/4-inch (6-mm) minimum diameter for lengths 36 inches (900mm) or less; 3/8-inch (10-mm) minimum diameter for lengths longer than 36 inches (900 mm).

2.2 SEALANT MATERIALS

A. Water-Based Joint and Seam Sealant: Flexible, adhesive sealant, resistant to UV light whencured UL 723 listed and complying with NFPA requirements for Class 1 ducts


B. Duct Attachments: Sheet metal screws, blind rivets, or self-tapping metal screws; compatiblewith duct materials.

2.4 RECTANGULAR DUCT FABRICATION

A. Fabricate ducts, elbows, transitions, offsets, branch connections, and other constructionaccording to SMACNA's "HVAC Duct Construction Standards Metal and Flexible" and



according to SMACNA s HVAC Duct Construction Standards--Metal and Flexible andcomplying with requirements for metal thickness, reinforcing types and intervals, tie-rodapplications, and joint types and intervals.

1. Lengths: Fabricate rectangular ducts in lengths appropriate to reinforcement and rigidityclass required for pressure class.

2.

Deflection: Duct systems shall not exceed deflection limits according to SMACNA's"HVAC Duct Construction Standards--Metal and Flexible."

B. Cross Breaking or Cross Beading: Cross break or cross bead duct sides 19 inches (480 mm)and larger and 0.0359 inch (0.9 mm) thick or less, with more than 10 sq. ft. (0.93 sq. m) of nonbraced panel area unless ducts are lined.

PART 3 - EXECUTION

3.1 DUCT INSTALLATION

A. Construct and install ducts according to SMACNA's "HVAC Duct Construction Standards--Metal and Flexible," unless otherwise indicated.

B. Install ducts with fewest possible joints.

C. Install fabricated fittings for changes in directions, size, and shape and for connections.

D. Install couplings tight to duct wall surface with a minimum of projections into duct. Securecouplings with sheet metal screws. Install screws at intervals of 12 inches (300 mm), with aminimum of 3 screws in each coupling.

E. Install ducts, unless otherwise indicated, vertically and horizontally and parallel andperpendicular to building lines; avoid diagonal runs.

F. Install ducts close to walls, overhead construction, columns, and other structural and permanentenclosure elements of building.

G Install ducts with a clearance of 1 inch (25 mm) plus allowance for insulation thickness


J. Seal all joints and seams. Apply sealant to male end connectors before insertion, and afterwardto cover entire joint and sheet metal screws.

K. Electrical Equipment Spaces: Route ducts to avoid passing through transformer vaults andelectrical equipment spaces and enclosures.

L. Non-Fire-Rated Partition Penetrations: Where ducts pass through interior partitions andexterior walls and are exposed to view conceal spaces between construction openings and ducts



exterior walls and are exposed to view, conceal spaces between construction openings and ductsor duct insulation with sheet metal flanges of same metal thickness as ducts. Overlap openingson 4 sides by at least 1-1/2 inches (38 mm).

M. Fire-Rated Partition Penetrations: Where ducts pass through interior partitions and exteriorwalls, install appropriately rated fire dampers, sleeves, and firestopping sealant. Fire dampers

are specified in Division 15 Section "Duct Accessories."

N. Protect duct interiors from the elements and foreign materials until building is enclosed. FollowSMACNA's "Duct Cleanliness for New Construction."

3.2 SEAM AND JOINT SEALING

A. Seal duct seams and joints according to SMACNA's "HVAC Duct Construction Standards--

Metal and Flexible" for duct pressure class indicated.

1. For pressure classes lower than 2-inch wg (500 Pa), seal transverse joints.

B. Seal ducts before external insulation is applied.

3.3 HANGING AND SUPPORTING

A. Support horizontal ducts within 24 inches (600 mm) of each elbow and within 48 inches (1200mm) of each branch intersection.

B. Support vertical ducts at maximum intervals of 16 feet (5 m) and at each floor.

C. Install upper attachments to structures with an allowable load not exceeding one-fourth of failure (proof-test) load.

3.4 CONNECTIONS

A. Make connections to equipment with flexible connectors according to Division 15 Section"Duct Accessories "


SECTION 15900 - INSTRUMENTATION AND CONTROL FOR HVAC

PART 1 - GENERAL





1.2 SUMMARY

A. This Section includes control equipment for HVAC systems and components, including controlcomponents for terminal heating and cooling units not supplied with factory-wired controls.

1.3 DEFINITIONS

A. DDC: Direct digital control.

B. I/O: Input/output.

C. LonWorks: A control network technology platform for designing and implementinginteroperable control devices and networks.

D. MS/TP: Master slave/token passing.

E. PC: Personal computer.

F. PID: Proportional plus integral plus derivative.

G. RTD: Resistance temperature detector.

1.4 SYSTEM PERFORMANCE

A. Comply with the following performance requirements:

1. Graphic Display: Display graphic with minimum 20 dynamic points with current datawithin 10 seconds.

2. Graphic Refresh: Update graphic with minimum 20 dynamic points with current data


6. Program Execution Frequency: Run capability of applications as often as five seconds,but selected consistent with mechanical process under control.

7. Performance: Programmable controllers shall execute DDC PID control loops, and scanand update process values and outputs at least once per second.

8. Reporting Accuracy and Stability of Control: Report values and maintain measuredvariables within tolerances as follows:

a. Water Temperature: Plus or minus 1 deg F (0.5 deg C).



a. Water Temperature: Plus or minus 1 deg F (0.5 deg C).b. Water Pressure: Plus or minus 2 percent of full scale.c. Space Temperature: Plus or minus 1 deg F (0.5 deg C).d. Ducted Air Temperature: Plus or minus 1 deg F (0.5 deg C).e. Outside Air Temperature: Plus or minus 2 deg F (1.0 deg C).f. Airflow (Measuring Stations): Plus or minus 5 percent of full scale.

g. Airflow (Terminal): Plus or minus 10 percent of full scale.h. Air Pressure (Space): Plus or minus 0.01-inch wg (2.5 Pa).i. Air Pressure (Ducts): Plus or minus 0.1-inch wg (25 Pa).

j. Carbon Dioxide: Plus or minus 50 ppm.k. Electrical: Plus or minus 5 percent of reading.

1.5 SUBMITTALS

A. Product Data: Include manufacturer's technical literature for each control device. Indicatedimensions, capacities, performance characteristics, electrical characteristics, finishes formaterials, and installation and startup instructions for each type of product indicated.

1. DDC System Hardware: Bill of materials of equipment indicating quantity,manufacturer, and model number. Include technical data for operator workstationequipment, interface equipment, control units, transducers/transmitters, sensors,actuators, valves, relays/switches, control panels, and operator interface equipment.

2.

Control System Software: Include technical data for operating system software, operatorinterface, color graphics, and other third-party applications.3. Controlled Systems: Instrumentation list with element name, type of device,

manufacturer, model number, and product data. Include written description of sequenceof operation including schematic diagram.

B. Shop Drawings: Detail equipment assemblies and indicate dimensions, weights, loads, requiredclearances, method of field assembly, components, and location and size of each fieldconnection.

1. Bill of materials of equipment indicating quantity, manufacturer, and model number.2. Schematic flow diagrams showing fans, pumps, coils, dampers, valves, and control

devices.


b. Schematic diagrams and floor plans for field sensors and control hardware.c. Schematic diagrams for control, communication, and power wiring, showing trunk

data conductors and wiring between operator workstation and control unitlocations.

9. Control System Software: List of color graphics indicating monitored systems, data(connected and calculated) point addresses, output schedule, and operator notations.

10. Controlled Systems:



y

a. Schematic diagrams of each controlled system with control points labeled andcontrol elements graphically shown, with wiring.

b. Scaled drawings showing mounting, routing, and wiring of elements includingbases and special construction.

c. Written description of sequence of operation including schematic diagram.d. Points list.

C. Data Communications Protocol Certificates: Certify that each proposed DDC systemcomponent complies with ASHRAE 135 or LonWorks.

D. Software and Firmware Operational Documentation: Include the following:

1. Software operating and upgrade manuals.2. Program Software Backup: On a magnetic media or compact disc, complete with data

files.3. Device address list.4. Printout of software application and graphic screens.5. Software license required by and installed for DDC workstations and control systems.

E. Software Upgrade Kit: For Owner to use in modifying software to suit future systems revisionsor monitoring and control revisions.

F. Qualification Data: For Installer.

G. Field quality-control test reports.

H. Operation and Maintenance Data: For HVAC instrumentation and control system to include inemergency, operation, and maintenance manuals. In addition to items specified in Division 01Section "Operation and Maintenance Data," include the following:

1. Maintenance instructions and lists of spare parts for each type of control device andcompressed-air station.

2. Interconnection wiring diagrams with identified and numbered system components anddevices.



A. Installer Qualifications: Automatic control system manufacturer's authorized representativewho is trained and approved for installation of system components required for this Project.

B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked forintended use.




A. Factory-Mounted Components: Where control devices specified in this Section are indicated to

be factory mounted on equipment, arrange for shipping of control devices to equipmentmanufacturer.

B. System Software: Update to latest version of software at Project completion.

1.8 COORDINATION

A. Coordinate location of thermostats, humidistats, and other exposed control sensors with plans

and room details before installation.

B. Coordinate supply of conditioned electrical branch circuits for control units and operatorworkstation. Provide power for all controls not provided by electrical.

C. Coordinate equipment with Division 16 Section "Panelboards" to achieve compatibility withstarter coils and annunciation devices.

PART 2 - PRODUCTS

2.1 COMPLIANCE

A. DDC system shall be compliant with ASHRAE 135 or LonWorks

2.2 MANUFACTURERS

A. In other Part 2 articles where titles below introduce lists, the following requirements apply toproduct selection:


1. Automated Logic Corporation.2. Honeywell International Inc.; Home & Building Control.3. Invensys Building Systems.4. Johnson Controls, Inc.; Controls Group.5. Siemens Building Technologies, Inc.6. Staefa Control System Inc.; Siemens Building Technologies, Inc.7. Trane; Worldwide Applied Systems Group



B. Control system shall consist of sensors, indicators, actuators, final control elements, interfaceequipment, other apparatus, accessories, and software connected to distributed controllersoperating in multiuser, multitasking environment on token-passing network and programmed tocontrol mechanical systems. An operator workstation permits interface with the network viadynamic color graphics with each mechanical system, building floor plan, and control device

depicted by point-and-click graphics.

2.4 DDC EQUIPMENT

A. Operator Workstation: One PC-based microcomputer(s) with minimum configuration asfollows:

1. Motherboard: With 8 integrated USB 2.0 ports, integrated Intel Pro 10/100 (Ethernet),

integrated audio, bios, and hardware monitoring.2. Processor: Intel XEON, 2.5 GHz.3. Random-Access Memory: 2 GB.4. Graphics: Video adapter, minimum 1600 x 1200 pixels, 256-MB video memory, with

TV out.5. Monitor: 19 inches (480 mm), LCD color.6. Keyboard: QWERTY, 105 keys in ergonomic shape.7. Hard-Disk Drive: Minimum 120 GB.

8.

DVD-ROM Read/Write Drive.9. Mouse: Three button, optical.10. Uninterruptible Power Supply: 2 kVa.

a. Operating System: Mircrosoft Windows 7 Professional with high-speed Internetaccess.

b. ASHRAE 135 Compliance: Workstation shall use ASHRAE 135 protocol andcommunicate using ISO 8802-3 (Ethernet) datalink/physical layer protocol.

c. LonWorks Compliance: Control units shall use LonTalk protocol and

communicate using EIA/CEA 709.1 datalink/physical layer protocol.

11. Application Software:


h. Alarm processing, messages, and reactions.i. Trend logs retrievable in spreadsheets and database programs.

j. Alarm and event processing.k. Object and property status and control.l. Automatic restart of field equipment on restoration of power.m. Data collection, reports, and logs. Include standard reports for the following:

1) Current values of all objects.) l



2) Current alarm summary.3) Disabled objects.4) Alarm lockout objects.5) Logs.

n.

Custom report development.o. Utility and weather reports.p. Workstation application editors for controllers and schedules.q. Maintenance management.

B. Control Units: Modular, comprising processor board with programmable, nonvolatile, random-access memory; local operator access and display panel; integral interface equipment; andbackup power source.

1. Units monitor or control each I/O point; process information; execute commands fromother control units, devices, and operator stations; and download from or upload tooperator workstation or diagnostic terminal unit.

2. Stand-alone mode control functions operate regardless of network status. Functionsinclude the following:

a. Global communications.b. Discrete/digital, analog, and pulse I/O.c. Monitoring, controlling, or addressing data points.d. Software applications, scheduling, and alarm processing.e. Testing and developing control algorithms without disrupting field hardware and

controlled environment.

3. Standard Application Programs:

a. Electric Control Programs: Demand limiting, duty cycling, automatic timescheduling, start/stop time optimization, night setback/setup, on-off control with

differential sequencing, staggered start, antishort cycling, PID control, DDC withfine tuning, and trend logging.

b. HVAC Control Programs: Optimal run time, supply-air reset, and enthalpyswitchover.


4. Local operator interface provides for download from or upload to operator workstation ordiagnostic terminal unit.

5. ASHRAE 135 Compliance: Control units shall use ASHRAE 135 protocol andcommunicate using ISO 8802-3 (Ethernet) datalink/physical layer protocol.

6. LonWorks Compliance: Control units shall use LonTalk protocol and communicateusing EIA/CEA 709.1 datalink/physical layer protocol.

C. Local Control Units: Modular, comprising processor board with electronically programmable,l til d l d b k



nonvolatile, read-only memory; and backup power source.

1. Units monitor or control each I/O point, process information, and download from orupload to operator workstation or diagnostic terminal unit.

2. Stand-alone mode control functions operate regardless of network status. Functions

include the following:

a. Global communications.b. Discrete/digital, analog, and pulse I/O.c. Monitoring, controlling, or addressing data points.

3. Local operator interface provides for download from or upload to operator workstation ordiagnostic terminal unit.

4. ASHRAE 135 Compliance: Control units shall use ASHRAE 135 protocol andcommunicate using ISO 8802-3 (Ethernet) datalink/physical layer protocol.

5. LonWorks Compliance: Control units shall use LonTalk protocol and communicateusing EIA/CEA 709.1 datalink/physical layer protocol.

D. I/O Interface: Hardwired inputs and outputs may tie into system through controllers. Protectpoints so that shorting will cause no damage to controllers.

1. Binary Inputs: Allow monitoring of on-off signals without external power.2. Pulse Accumulation Inputs: Accept up to 10 pulses per second.3. Analog Inputs: Allow monitoring of low-voltage (0- to 10-V dc), current (4 to 20 mA),

or resistance signals.4. Binary Outputs: Provide on-off or pulsed low-voltage signal, selectable for normally

open or normally closed operation with three-position (on-off-auto) override switches andstatus lights.

5. Analog Outputs: Provide modulating signal, either low voltage (0- to 10-V dc) or current(4 to 20 mA) with status lights, two-position (auto-manual) switch, and manuallyadjustable potentiometer.

6. Tri-State Outputs: Provide two coordinated binary outputs for control of three-point,floating-type electronic actuators.

7. Universal I/Os: Provide software selectable binary or analog outputs.


3. Built-in overvoltage and overcurrent protection and be able to withstand 150 percentoverload for at least 3 seconds without failure.

F. Power Line Filtering: Internal or external transient voltage and surge suppression forworkstations or controllers with the following:

1. Minimum dielectric strength of 1000 V.2. Maximum response time of 10 nanoseconds.3 Minimum transverse mode noise attenuation of 65 dB



3. Minimum transverse-mode noise attenuation of 65 dB.4. Minimum common-mode noise attenuation of 150 dB at 40 to 100 Hz.

2.5 UNITARY CONTROLLERS

A. Unitized, capable of stand-alone operation with sufficient memory to support its operatingsystem, database, and programming requirements, and with sufficient I/O capacity for theapplication.

1. Configuration: Local keypad and display; diagnostic LEDs for power, communication,and processor; wiring termination to terminal strip or card connected with ribbon cable;memory with bios; and 72-hour battery backup.

2. Operating System: Manage I/O communication to allow distributed controllers to share

real and virtual object information and allow central monitoring and alarms. Performautomatic system diagnostics; monitor system and report failures.

3. ASHRAE 135 Compliance: Communicate using read (execute and initiate) and write(execute and initiate) property services defined in ASHRAE 135. Reside on network using MS/TP datalink/physical layer protocol and have service communication port forconnection to diagnostic terminal unit.

4. LonWorks Compliance: Communicate using EIA/CEA 709.1 datalink/physical layerprotocol using LonTalk protocol.

5. Enclosure: Dustproof rated for operation at 32 to 120 deg F (0 to 50 deg C).

2.6 ELECTRONIC SENSORS

A. Description: Vibration and corrosion resistant; for wall, immersion, or duct mounting asrequired.

B. Thermistor Temperature Sensors and Transmitters:

1. Accuracy: Plus or minus 0.5 deg F (0.3 deg C) at calibration point.2. Wire: Twisted, shielded-pair cable.3. Insertion Elements in Ducts: Single point, 8 inches (200 mm) long; use where not


a. Set-Point Adjustment: Exposed.b. Set-Point Indication: Exposed.

7. Outside-Air Sensors: Watertight inlet fitting, shielded from direct sunlight.

C. RTDs and Transmitters:

1. Accuracy: Plus or minus 0.2 percent at calibration point.2. Wire: Twisted, shielded-pair cable.



2. Wire: Twisted, shielded pair cable.3. Insertion Elements in Ducts: Single point, 8 inches (200 mm) long; use where not

affected by temperature stratification or where ducts are smaller than 9 sq. ft. (0.84sq. m).

4. Averaging Elements in Ducts: 18 inches (460 mm) long, rigid; use where prone to

temperature stratification or where ducts are larger than 9 sq. ft. (0.84 sq. m); length asrequired.5. Insertion Elements for Liquids: Brass socket with minimum insertion length of 2-1/2

inches (64 mm).6. Room Sensor Cover Construction: Manufacturer's standard locking covers.

a. Set-Point Adjustment: Exposed.b. Set-Point Indication: Exposed.

7. Outside-Air Sensors: Watertight inlet fitting, shielded from direct sunlight.

D. Room sensor accessories include the following:

1. Insulating Bases: For sensors located on exterior walls.

2.7 STATUS SENSORS

A. Current Switches: Self-powered, solid-state with adjustable trip current, selected to matchcurrent and system output requirements.

B. Electronic Valve/Damper Position Indicator: Visual scale indicating percent of travel and 2- to10-V dc, feedback signal.

2.8 THERMOSTATS

A. Combination Thermostat and Fan Switches: Line-voltage thermostat with push-button or lever-operated fan switch.

1 L b l it h "FAN ON OFF"


rating; with concealed set-point adjustment, 55 to 85 deg F (13 to 30 deg C) set-point range, and2 deg F (1 deg C) maximum differential.

1. Electric Heating Thermostats: Equip with off position on dial wired to break ungroundedconductors.

2. Selector Switch: Integral, manual on-off-auto.

2.9 ACTUATORS



A. Electric Motors: Size to operate with sufficient reserve power to provide smooth modulatingaction or two-position action.1. Permanent Split-Capacitor or Shaded-Pole Type: Gear trains completely oil immersed

and sealed. Equip spring-return motors with integral spiral-spring mechanism inhousings designed for easy removal for service or adjustment of limit switches, auxiliaryswitches, or feedback potentiometer.

2. Nonspring-Return Motors for Valves Larger Than NPS 2-1/2 (DN 65): Size for runningtorque of 150 in. x lbf (16.9 N x m) and breakaway torque of 300 in. x lbf (33.9 N x m).

3. Spring-Return Motors for Valves Larger Than NPS 2-1/2 (DN 65): Size for running andbreakaway torque of 150 in. x lbf (16.9 N x m).

4. Nonspring-Return Motors for Dampers Larger Than 25 Sq. Ft. (2.3 sq. m): Size forrunning torque of 150 in. x lbf (16.9 N x m) and breakaway torque of 300 in. x lbf

(33.9 N x m).5. Spring-Return Motors for Dampers Larger Than 25 Sq. Ft. (2.3 sq. m): Size for running

and breakaway torque of 150 in. x lbf (16.9 N x m).

B. Electronic Actuators: Direct-coupled type designed for minimum 60,000 full-stroke cycles atrated torque.

1. Valves: Size for torque required for valve close off at maximum pump differentialpressure.

2. Dampers: Size for running torque calculated as follows:

a. Parallel-Blade Damper with Edge Seals: 7 inch-lb/sq. ft. (86.8 kg-cm/sq. m) of damper.

b. Opposed-Blade Damper with Edge Seals: 5 inch-lb/sq. ft. (62 kg-cm/sq. m) of damper.

c. Parallel-Blade Damper without Edge Seals: 4 inch-lb/sq. ft (49.6 kg-cm/sq. m) of damper.

d. Opposed-Blade Damper without Edge Seals: 3 inch-lb/sq. ft. (37.2 kg-cm/sq. m)of damper.

e. Dampers with 2- to 3-Inch wg (500 to 750 Pa) of Pressure Drop or Face Velocitiesof 1000 to 2500 fpm (5 to 13 m/s): Increase running torque by 1.5.


6. Proportional Signal: 2- to 10-V dc or 4 to 20 mA, and 2- to 10-V dc position feedback signal.

7. Temperature Rating: Minus 22 to plus 122 deg F (Minus 30 to plus 50 deg C).8. Temperature Rating (Smoke Dampers): Minus 22 to plus 250 deg F (Minus 30 to plus

121 deg C).

2.10 CONTROL VALVES



A. Control Valves: Factory fabricated, of type, body material, and pressure class based onmaximum pressure and temperature rating of piping system, unless otherwise indicated.

B. Hydronic system globe valves shall have the following characteristics:

1. NPS 2 (DN 50) and Smaller: Class 125 bronze body, bronze trim, rising stem, renewablecomposition disc, and screwed ends with backseating capacity repackable under pressure.

2. NPS 2-1/2 (DN 65) and Larger: Class 125 iron body, bronze trim, rising stem, plug-typedisc, flanged ends, and renewable seat and disc.

3. Internal Construction: Replaceable plugs and stainless-steel or brass seats.

a. Single-Seated Valves: Cage trim provides seating and guiding surfaces for plug ontop and bottom.

b. Double-Seated Valves: Balanced plug; cage trim provides seating and guidingsurfaces for plugs on top and bottom.

4. Sizing: 3-psig (21-kPa) maximum pressure drop at design flow rate or the following:

a. Two Position: Line size.b. Two-Way Modulating: Either the value specified above or twice the load pressure

drop, whichever is more.c. Three-Way Modulating: Twice the load pressure drop, but not more than value

specified above.

5. Flow Characteristics: Two-way valves shall have equal percentage characteristics; three-way valves shall have linear characteristics.

6. Close-Off (Differential) Pressure Rating: Combination of actuator and trim shall provideminimum close-off pressure rating of 150 percent of total system (pump) head for two-way valves and 100 percent of pressure differential across valve or 100 percent of totalsystem (pump) head.

C. Terminal Unit Control Valves: Bronze body, bronze trim, two or three ports as indicated,replaceable plugs and seats, and union and threaded ends.


2.11 DAMPERS

A. Dampers: AMCA-rated, parallel-blade design; 0.108-inch- (2.8-mm-) minimum thick,galvanized-steel or 0.125-inch- (3.2-mm-) minimum thick, extruded-aluminum frames withholes for duct mounting; damper blades shall not be less than 0.064-inch- (1.6-mm-) thick galvanized steel with maximum blade width of 8 inches (200 mm) and length of 48 inches(1220 mm).

1. Secure blades to 1/2-inch- (13-mm-) diameter, zinc-plated axles using zinc-plated



hardware, with blade bearings, blade-linkage hardware of zinc-plated steel and brass,ends sealed against spring-stainless-steel blade bearings, and thrust bearings at each endof every blade.

2. Operating Temperature Range: From minus 40 to plus 200 deg F (minus 40 to plus 93

deg C).3. Edge Seals, Standard Pressure Applications: Closed-cell neoprene.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that power supply is available to control units and operator workstation.

B. Verify that pneumatic piping and duct-, pipe-, and equipment-mounted devices are installedbefore proceeding with installation.

3.2 INSTALLATION

A. Install software in control units and operator workstation(s). Implement all features of programs to specified requirements and as appropriate to sequence of operation.

B. Connect and configure equipment and software to achieve sequence of operation specified.

C. Verify location of thermostats, humidistats, and other exposed control sensors with Drawingsand room details before installation. Install devices 60 inches (1530 mm) above the floor.

1. Install averaging elements in ducts and plenums in crossing or zigzag pattern.

D. Install damper motors on outside of duct in warm areas, not in locations exposed to outdoortemperatures.

E Install hydronic instrument wells valves and other accessories according to Division 15


B. Install building wire and cable according to Division 16 Section "Low-Voltage Electrical PowerConductors and Cables."

C. Install signal and communication cable.

1. Conceal cable, except in mechanical rooms and areas where other conduit and piping areexposed.

2. Install exposed cable in raceway.3. Bundle and harness multiconductor instrument cable in place of single cables where



several cables follow a common path.4. Fasten flexible conductors, bridging cabinets and doors, along hinge side; protect against

abrasion. Tie and support conductors.5. Number-code or color-code conductors for future identification and service of control

system, except local individual room control cables.6. Install wire and cable with sufficient slack and flexible connections to allow for vibration

of piping and equipment.

D. Connect manual-reset limit controls independent of manual-control switch positions.Automatic duct heater resets may be connected in interlock circuit of power controllers.

E. Connect hand-off-auto selector switches to override automatic interlock controls when switch isin hand position.


A. Perform the following field tests and inspections and prepare test reports:

1. Operational Test: After electrical circuitry has been energized, start units to confirmproper unit operation. Remove and replace malfunctioning units and retest.

2. Test and adjust controls and safeties.3. Test calibration of electronic controllers by disconnecting input sensors and stimulating

operation with compatible signal generator.4. Test each point through its full operating range to verify that safety and operating control

set points are as required.5. Test each control loop to verify stable mode of operation and compliance with sequence

of operation. Adjust PID actions.6. Test each system for compliance with sequence of operation.7. Test software and hardware interlocks.

B. DDC Verification:

1. Verify that instruments are installed before calibration, testing, and loop or leak checks.


7. Check control valves. Verify that they are in correct direction.8. Check air-operated dampers. Verify that pressure gages are provided and that proper

blade alignment, either parallel or opposed, has been provided.9. Check DDC system as follows:

a. Verify that DDC controller power supply is from emergency power supply, if applicable.

b. Verify that wires at control panels are tagged with their service designation andapproved tagging system.

f



c. Verify that spare I/O capacity has been provided.d. Verify that DDC controllers are protected from power supply surges.

C. Replace damaged or malfunctioning controls and equipment and repeat testing procedures.

3.5 ADJUSTING

A. Calibrating and Adjusting:

1. Calibrate instruments.2. Make three-point calibration test for both linearity and accuracy for each analog

instrument.

3. Calibrate equipment and procedures using manufacturer's written recommendations andinstruction manuals. Use test equipment with accuracy at least double that of instrumentbeing calibrated.

4. Control System Inputs and Outputs:

a. Check analog inputs at 0, 50, and 100 percent of span.b. Check analog outputs using milliampere meter at 0, 50, and 100 percent output.c. Check digital inputs using jumper wire.d. Check digital outputs using ohmmeter to test for contact making or breaking.e. Check resistance temperature inputs at 0, 50, and 100 percent of span using a

precision-resistant source.

5. Flow:

a. Set differential pressure flow transmitters for 0 and 100 percent values with 3-pointcalibration accomplished at 50, 90, and 100 percent of span.

b. Manually operate flow switches to verify that they make or break contact.

6. Pressure:

a. Calibrate pressure transmitters at 0, 50, and 100 percent of span.


8. Stroke and adjust control valves and dampers without positioners, following themanufacturer's recommended procedure, so that valve or damper is 100 percent open andclosed.

9. Stroke and adjust control valves and dampers with positioners, following manufacturer'srecommended procedure, so that valve and damper is 0, 50, and 100 percent closed.

10. Provide diagnostic and test instruments for calibration and adjustment of system.11. Provide written description of procedures and equipment for calibrating each type of

instrument. Submit procedures review and approval before initiating startup procedures.

B Adj t i iti l t t d h idit t i t



B. Adjust initial temperature and humidity set points.

C. Occupancy Adjustments: When requested within 12 months of date of Substantial Completion,provide on-site assistance in adjusting system to suit actual occupied conditions. Provide up tothree visits to Project during other than normal occupancy hours for this purpose.

3.6 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel toadjust, operate, and maintain HVAC instrumentation and controls. Refer to Division 01 Section"Demonstration and Training."



SECTION 15940 - SEQUENCE OF OPERATION

PART 1 - GENERAL


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



A. Drawings and general provisions of the Contract, including General and SupplementaryConditions and Division 1 Specification Sections, apply to this section.

1.2 SUMMARY

A. This Section includes Control sequences for HVAC systems, subsystems, and equipment.

B. Related Section include the following:

1. Division 15 section “HVAC Instrumentation and Controls” for control equipment anddevices and for submittal requirements.

1.3 DEFINITIONS

A. DDC: Direct digital control

B. VAV: Variable air volume

1.4 CENTRAL PLANT CONTROL

A. The change from heating to cooling mode and from cooling to heating mode shall through theautomatic operation of valves and selecting the mode in the DDC control system.

1.5 COOLING SYSTEM

A. DDC control system shall monitor and control existing roof mounted air-cooled chiller. Providesensors to monitor the supply and return water temperature. The chiller shall be energizedthrough the control system and monitored for alarms. Primary lead pumps (P-3 or P-4) shall be

energized. Provide occupied/unoccupied control.

1.6 HEATING WATER SYSTEM


B. In the manual override mode, primary lead pumps BP-1 and BP-2 and lead secondary pumps(P-1 or P-2 and P-3 or P-4) shall run continuously and lead boiler B-1 (B-2 for lag) shall start insequence to maintain its supply heating hot water temperature set point 180 deg. F. (adjustable).Mixing valve shall be fully open.

C. When the system is indexed to the “Auto” mode, the central heating hot water plant shall bestarted by Building Automation system (BAS). The system shall energize lead secondarycirculating pumps P-1 (P-2 for lag) and P-3 (P-4 for lag) and lead primary pump BP-1 (BP-2 forlag). When lead primary pump and lead secondary circulating pumps are running as sensed byits current sensor the unit controller shall start boiler B-1 (B-2 for lag) to maintain its secondary



its current sensor the unit controller shall start boiler B-1 (B-2 for lag) to maintain its secondarywater supply temperature set point as sensed by the temperature sensor. When the lead boilersystem cannot maintain the system supply heating water temperature, the unit controller shallenergize lag primary circulating pump BP-2 and energize lag boiler B-2 and vice versa.

D. The boiler’s control panel shall modulate the 3-way valve to maintain heating water returntemperature. Reset return temperature according to outdoor air temperature in straight-linerelationship for the following conditions:

Outdoor Air Temp. Heating-Water Return Temp.60 deg F and above 100 deg F10 deg F and below 170 deg F

E. The boilers and heating pumps shall operate in a lead/lag sequence determined by run timestatus and alternated by time schedule determined by the Owner. Upon sense of failure by anyboiler or pump, an alarm shall be generated and the lag boiler with its associated primary andsecondary circulating pumps shall be initiated after a 30-second time delay. Boiler shall not beenergized until proof of flow via pump motor’s current sensor proves flow status.

F. Safety: When low water cutoff switch senses low water level in the boiler, it shall shut-off theboiler burner.

G. Whenever the manual emergency shut-off switch is manually switched to “OFF”, it shall stopboth the boiler burners.

1.7 TERMINAL UNIT OPERATING SEQUENCE

A. Terminal Units:

1. Cabinet Unit Heater

a. Aquastat shall shut-off water supply to unit when water temperature is below 100deg F (adjustable).


b Occupied Periods: Fan cycles to maintain occupiedroom temperature setpoint of 70 deg. F.

c Unoccupied Periods: Fan cycles to maintain unoccupiedroom temperature setpoint of 55 deg F.

3) Controller shall have volatile-memory backup.

c. BAS Interface Requirements:



1) Interface relay for scheduled operation.2) Interface shall be BAC-net compatible for central BAS workstation and

include the following functions:

a Adjust set points.b Cabinet unit heater start, stop, and operating status.c Occupied and unoccupied schedules.

2. Fan Coil Unit

a. DDC Terminal Controller:

1)

Scheduled Operation: Occupied and unoccupied periods on seven-dayclock with a minimum of four programmable periods per day.2) Unoccupied Period Override Operation: Two hours.3) Unit Supply-Air Fan Operation:

a Occupied Periods: Fan runs continuously.b Unoccupied Periods: Fan cycles to maintain room

setback temperature.

4) Dual-Temperature Hydronic-Coil Operation:

a Occupied Periods: When chilled water is available,modulate control valve if room temperature exceedsthermostat set point. When hot water is available,modulate control valve if temperature falls belowthermostat set point.

b Unoccupied Periods: When chilled water is available,close control valve. When hot water is available, opencontrol valve if room temperature falls below thermostatsetback temperature.



2) If freezestat senses a coil discharge temperature below 40 deg. F then thefan shall de-energize and an alarm shall be generated in the BAS.

b. BAS Interface Requirements:

1) Interface relay for scheduled operation.2) Interface relay to provide indication of fault at the central workstation.3) Provide BACnet interface for central BAS workstation for the following



) gfunctions:

a Adjust set points.b Fan-coil-unit start, stop, and operating status.c Data inquiry, including outdoor-air damper

position, duct mounted outdoor air fan status (whereapplicable), supply- and room-air temperature.

d Occupied and unoccupied schedules.

3. Unit Ventilator:

a.

DDC Terminal Controller:

1) Scheduled Operation: Occupied and unoccupied periods on seven-dayclock with a minimum of four programmable periods per day.

2) Unoccupied Period Override Operation: Two hours.3) Unit Supply-Air Fan Operation:

a Occupied Periods: Fan runs continuously.b Unoccupied Periods: Fan cycles to maintain room

setback temperature.

4) Dual-Temperature Hydronic-Coil Operation:

a Occupied Periods: When chilled water is available,modulate control valve if room temperature exceedsthermostat set point. When hot water is available,modulate control valve if temperature falls belowthermostat set point.

b Unoccupied Periods: When chilled water is available,close control valve. When hot water is available, opencontrol valve if room temperature falls below thermostat



2) If freezestat senses a coil discharge temperature below 40 deg. F then thefan shall de-energize and an alarm shall be generated in the BAS.

c. BAS Interface Requirements:

1) Interface relay for scheduled operation.2) Interface relay to provide indication of fault at the central workstation.3) Provide BACnet interface for central BAS workstation for the following



functions:

a Adjust set points.b Unit Ventilator start, stop, and operating status.c Data inquiry, including outdoor-air damper position,

supply- and room-air temperature.d Occupied and unoccupied schedules.

PART 4 - PRODUCTS (Not Applicable)

PART 5 - EXECUTION (Not Applicable)



SECTION 15950 - TESTING, ADJUSTING, AND BALANCING FOR HVAC

PART 1 - GENERAL


A. Drawings and general provisions of the Contract, including General and SupplementaryC diti d Di i i 01 S ifi ti S ti l t thi S ti



Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Balancing Hydronic Piping Systems:

a. Constant-flow hydronic systems.b. Primary-secondary hydronic systems.

1.3 DEFINITIONS

A. NEBB: National Environmental Balancing Bureau.

B. TAB: Testing, adjusting, and balancing.

C. TAB Specialist: An entity engaged to perform TAB Work.

1.4 SUBMITTALS

A. Certified TAB reports.

B. Sample report forms.


A. TAB Contractor Qualifications: Engage a TAB entity certified by NEBB.

1. TAB Field Supervisor: Employee of the TAB contractor and certified by NEBB.


2. Certify that the TAB team complied with the approved TAB plan and the proceduresspecified and referenced in this Specification.

C. TAB Report Forms: Use standard TAB contractor's forms approved by Architect.

D. Instrumentation Type, Quantity, Accuracy, and Calibration: As described in ASHRAE 111,Section 5, "Instrumentation."

PART 2 - PRODUCTS (Not Applicable)



PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine the Contract Documents to become familiar with Project requirements and to discoverconditions in systems' designs that may preclude proper TAB of systems and equipment.

B. Examine systems for installed balancing devices, such as test ports, gage cocks, thermometerwells, flow-control devices, balancing valves and fittings, and manual volume dampers. Verifythat locations of these balancing devices are accessible.

C. Examine system and equipment installations and verify that field quality-control testing,cleaning, and adjusting specified in individual Sections have been performed.

D. Examine test reports specified in individual system and equipment Sections.

E. Examine HVAC equipment and filters and verify that bearings are greased, belts are alignedand tight, and equipment with functioning controls is ready for operation.

F. Examine strainers. Verify that startup screens are replaced by permanent screens with indicatedperforations.

G. Examine three-way valves for proper installation for their intended function of diverting ormixing fluid flows.

H. Examine system pumps to ensure absence of entrained air in the suction piping.

I. Examine operating safety interlocks and controls on HVAC equipment.

J. Report deficiencies discovered before and during performance of TAB procedures. Observeand record system reactions to changes in conditions Record default set points if different from


1. Permanent electrical-power wiring is complete.2. Hydronic systems are filled, clean, and free of air.3. Automatic temperature-control systems are operational.4. Equipment and duct access doors are securely closed.5. Balance, smoke, and fire dampers are open.

6. Isolating and balancing valves are open and control valves are operational.7. Windows and doors can be closed so indicated conditions for system operations can be

met.

3 3 GENERAL PROCEDURES FOR TESTING AND BALANCING



3.3 GENERAL PROCEDURES FOR TESTING AND BALANCING

A. Perform testing and balancing procedures on each system according to the procedures containedin NEBB's "Procedural Standards for Testing, Adjusting, and Balancing of EnvironmentalSystems" and in this Section.

1. Comply with requirements in ASHRAE 62.1-2004, Section 7.2.2, "Air Balancing."

B. Cut insulation, ducts, pipes, and equipment cabinets for installation of test probes to theminimum extent necessary for TAB procedures.

1. After testing and balancing, patch probe holes in ducts with same material and thickness

as used to construct ducts.2. Install and join new insulation that matches removed materials. Restore insulation,coverings, vapor barrier, and finish according to Division 15 Section "HVAC Insulation."

C. Mark equipment and balancing devices, including damper-control positions, valve positionindicators, fan-speed-control levers, and similar controls and devices, with paint or othersuitable, permanent identification material to show final settings.

D. Take and report testing and balancing measurements in inch-pound (IP) units.

3.4 GENERAL PROCEDURES FOR HYDRONIC SYSTEMS

A. Prepare schematic diagrams of systems' "as-built" piping layouts.

B. Prepare hydronic systems for testing and balancing according to the following, in addition to thegeneral preparation procedures specified above:

1. Open all manual valves for maximum flow.2. Check liquid level in expansion tank.3. Check makeup water-station pressure gage for adequate pressure for highest vent.4 Ch k fl l l f ifi d f i d i di d fl


3.5 PROCEDURES FOR CONSTANT-FLOW HYDRONIC SYSTEMS

A. Measure water flow at pumps. Use the following procedures except for positive-displacementpumps:

1. Verify impeller size by operating the pump with the discharge valve closed. Readpressure differential across the pump. Convert pressure to head and correct fordifferences in gage heights. Note the point on manufacturer's pump curve at zero flowand verify that the pump has the intended impeller size.

a If impeller sizes must be adjusted to achieve pump performance obtain approval



a. If impeller sizes must be adjusted to achieve pump performance, obtain approvalfrom Architect and comply with requirements in Division 15 Section "HydronicPumps."

2. Check system resistance. With all valves open, read pressure differential across thepump and mark pump manufacturer's head-capacity curve. Adjust pump discharge valveuntil indicated water flow is achieved.

a. Monitor motor performance during procedures and do not operate motors inoverload conditions.

3. Verify pump-motor brake horsepower. Calculate the intended brake horsepower for the

system based on pump manufacturer's performance data. Compare calculated brakehorsepower with nameplate data on the pump motor. Report conditions where actualamperage exceeds motor nameplate amperage.

4. Report flow rates that are not within plus or minus 10 percent of design.

B. Measure flow at all automatic flow control valves to verify that valves are functioning asdesigned.

C. Measure flow at all pressure-independent characterized control valves, with valves in fully open

position, to verify that valves are functioning as designed.

D. Set calibrated balancing valves, if installed, at calculated presettings.

E. Measure flow at all stations and adjust, where necessary, to obtain first balance.

1. System components that have Cv rating or an accurately cataloged flow-pressure-droprelationship may be used as a flow-indicating device.

F. Measure flow at main balancing station and set main balancing device to achieve flow that is 5percent greater than indicated flow.

G Adj b l i i i hi ifi d l f i di d fl f ll


H. Measure pump flow rate and make final measurements of pump amperage, voltage, rpm, pumpheads, and systems' pressures and temperatures including outdoor-air temperature.

I. Measure the differential-pressure-control-valve settings existing at the conclusion of balancing.

J. Check settings and operation of each safety valve. Record settings.

3.6 PROCEDURES FOR PRIMARY-SECONDARY HYDRONIC SYSTEMS

A. Balance the primary circuit flow first and then balance the secondary circuits.



A. Balance the primary circuit flow first and then balance the secondary circuits.

3.7 PROCEDURES FOR MOTORS

A. Motors, 1/2 HP and Larger: Test at final balanced conditions and record the following data:

1. Manufacturer's name, model number, and serial number.2. Motor horsepower rating.3. Motor rpm.4. Efficiency rating.5. Nameplate and measured voltage, each phase.6. Nameplate and measured amperage, each phase.7. Starter thermal-protection-element rating.

3.8 PROCEDURES FOR CHILLERS

A. Balance water flow through each evaporator to within specified tolerances of indicated flowwith all pumps operating. With only one chiller operating in a multiple chiller installation, donot exceed the flow for the maximum tube velocity recommended by the chiller manufacturer.

Measure and record the following data with each chiller operating at design conditions:

1. Evaporator-water entering and leaving temperatures, pressure drop, and water flow.2. For water-cooled chillers, condenser-water entering and leaving temperatures, pressure

drop, and water flow.3. Evaporator and condenser refrigerant temperatures and pressures, using instruments

furnished by chiller manufacturer.4. Power factor if factory-installed instrumentation is furnished for measuring kilowatts.5. Kilowatt input if factory-installed instrumentation is furnished for measuring kilowatts.6. Capacity: Calculate in tons of cooling.7. For air-cooled chillers, verify condenser-fan rotation and record fan and motor data

including number of fans and entering- and leaving-air temperatures.


3.10 TOLERANCES

A. Set HVAC system's air flow rates and water flow rates within the following tolerances:1. Heating-Water Flow Rate: Plus or minus 10 percent.2. Cooling-Water Flow Rate: Plus or minus 10 percent.

3.11 FINAL REPORT

A. General: Prepare a certified written report; tabulate and divide the report into separate sectionsfor tested systems and balanced systems.



y y

1. Include a certification sheet at the front of the report's binder, signed and sealed by thecertified testing and balancing engineer.

2. Include a list of instruments used for procedures, along with proof of calibration.

B. Final Report Contents: In addition to certified field-report data, include the following:

1. Pump curves.2. Manufacturers' test data.3. Field test reports prepared by system and equipment installers.4. Other information relative to equipment performance; do not include Shop Drawings and

product data.

C. General Report Data: In addition to form titles and entries, include the following data:

1. Title page.2. Name and address of the TAB contractor.3. Project name.4. Project location.5. Architect's name and address.

6. Engineer's name and address.7. Contractor's name and address.8. Report date.9. Signature of TAB supervisor who certifies the report.10. Table of Contents with the total number of pages defined for each section of the report.

Number each page in the report.11. Summary of contents including the following:

a. Indicated versus final performance.b. Notable characteristics of systems.c. Description of system operation sequence if it varies from the Contract

Documents.




d. Make and size.e. Model number and serial number.f. Water flow rate in gpm (L/s).g. Water pressure differential in feet of head or psig (kPa).h. Required net positive suction head in feet of head or psig (kPa).

i. Pump rpm. j. Impeller diameter in inches (mm).k. Motor make and frame size.l. Motor horsepower and rpm.m. Voltage at each connection.n. Amperage for each phase.



p g po. Full-load amperage and service factor.p. Seal type.

2. Test Data (Indicated and Actual Values):

a. Static head in feet of head or psig (kPa).b. Pump shutoff pressure in feet of head or psig (kPa).c. Actual impeller size in inches (mm).d. Full-open flow rate in gpm (L/s).e. Full-open pressure in feet of head or psig (kPa).f. Final discharge pressure in feet of head or psig (kPa).

g.

Final suction pressure in feet of head or psig (kPa).h. Final total pressure in feet of head or psig (kPa).i. Final water flow rate in gpm (L/s).

j. Voltage at each connection.k. Amperage for each phase.

G. Instrument Calibration Reports:

1. Report Data:

a. Instrument type and make.b. Serial number.c. Application.d. Dates of use.e. Dates of calibration.



SECTION 16050 - BASIC ELECTRICAL MATERIALS AND METHODS

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Basic Electrical requirements applicable to the construction work.

1.2 GENERAL



A. Provisions of the General and Supplementary Conditions, and Division 1 General Requirementsof these specifications, as related to the electrical work, shall apply to, and form part of, the work

described in this Division of the Specifications.

1.3 CITED STANDARDS

A. American Society for Testing and Materials (ASTM):E814 Standard Method of Fire Tests of Through-Penetration Fire Stops.

B. Factory Mutual (FM):

Approval Guide.

C. National Electrical Contractors Association (NECA):5055 Standard of Installation.

D. National Fire Protection Association (NFPA):70 National Electrical Code (NEC).

E. Underwriters Laboratories, Inc. (UL):1479 Fire Tests of Through-Penetration Fire Stops

Fire Resistance Directory

1.4 NOTED RESTRICTIONS

A. Do not interrupt services or systems unless authorized by the Owner.

1.5 DELIVERABLES

A. “Combustion/Toxicity Certification Number” for covered products.


B. The contract drawings and generally diagrammatic and all offsets, bends, fittings and accessoriesare not necessarily shown. Provide all items as may be required to provide for a complete andfunctional system.

1.7 CONTRACTOR QUALIFICATIONS

A. Any Contractor performing work under this Division shall be fully qualified. Submit thefollowing evidence if requested.

1. A list of not less than five (5) comparable projects which the Contractor successfullycompleted



completed.2. Letters of reference from not less that three (3) registered Professional Engineers,

General Contractors or Building Owners.

3. Local or State License where required.

B. Acceptance of a Subcontractor will not relieve the Contractor of any contractual requirements orhis responsibility to supervise and coordinate the various trades.

PART 2 - PRODUCTS2.1 GENERAL

A. Equipment, materials and accessories, shall be furnished as necessary to complete the work.

B. Products and materials shall comply with the requirements of the cited standards.

C. Products and materials shall be suitable for the intended application, with regard to rating, listing,and labeling.

2.2 PERMITS, INSPECTION AND CERTIFICATION

A. Obtain, purchase, and deliver all permits, certificates of inspection, etc. required by theAuthorities Having Jurisdiction. Deliver inspection, approval, and other certificates to the Ownerprior to final acceptance of the work.

2.3 PROTECTIVE COATINGS

A. Factory-applied and field-applied protective coatings shall protect materials and equipment from

rust and corrosion damage.

B. Protective coatings shall be suitable for the atmospheric conditions encountered.


PART 3 - EXECUTION

3.1 PREPARATION

A. Transmit deliverables required by this section.

B. Furnish products as indicated.

C. Ensure substrates are in suitable condition to receive the work of this section.

D. Coordinate electrical work with other trades.



3.2 STORAGE AND PROTECTION OF EQUIPMENT

A. All electrical equipment shall be properly stored and protected against the elements.

B. Equipment subject to corrosion from excessive moisture shall be stored in dry heated areas.

C. Equipment subject to damage from excessive heat or sunlight shall be stored to protect suchdamage.

D. Protect equipment against damage from construction materials such as paint spots, tar spots,waterproofing compound, etc.

E. Equipment damaged as a result of improper storage or handling shall be properly repaired at theContractor’s expense or shall be replaced at the Contractor’s expense if in the opinion of theEngineer the equipment has been damaged to such an extent it cannot operate properly afterrepairs are made.

3.3 CONTRACT DOCUMENTS AND REFERENCES

A. The complete set of Architectural, Civil, Structural, Mechanical, and Electrical Drawings andspecifications apply to this work. The Contractor shall be familiar will all other relateddocuments.

B. The contract drawings and generally diagrammatic and all offsets, bends, fittings and accessoriesare not necessarily shown. Provide all items as may be required to provide for a complete andfunctional system.

3.4 PENETRATION OF WATERPROOF CONSTRUCTION

A. Minimize penetration of waterproof construction, exterior walls and interior waterproof


B. Provide steel sleeves securely fastened to the wall or floor where penetrations are required forconduits. Space between the conduit contained in the sleeve and the sleeve itself, and any spacebetween the sleeve and the wall or floor shall be filled with concrete, grout or mortar for the fullthickness of the wall or floor.

C. Provide steel sleeves where penetrations are required for cables having combustible jackets orinsulation. Protect cable by a through-penetration fire stop system.

D. Provide fire stop products, which are FM approved, listed in the UL Fire Resistance Directoryunder categories XHCR and XHEZ, and conform to ASTM E814 and UK 1479. The fire stopsystem shall have an F-rating of not less than the rating of the wall or floor penetrated.



3.6 SUPPORTERS, HANGERS AND FOUNDATIONS

A. Provide supports, hangers, braces, attachments and foundations required for the Work. Supportand set work without placing strains on the materials, equipment, or the building structure.

B. Install wall-mounted equipment such as enclosed switches at a uniform height, when installedadjacent to each other.

3.7 INSTALLATION

A. Install and connect equipment and devices in accordance with manufacturers’ recommendationsand applicable requirements of NEC and NECA.

B. Provide matching receptacles for equipment having cord and plug connections. Install strain-relief grips and clamps for cord connections.

C. In dry locations, install flexible metal conduit (length 18 inches to 36 inches) for final conduitconnections to motors; to distribution transformers; to equipment requiring field adjustment or

alignment, or subject to vibration. In damp or wet locations use liquid tight flexible metalconduit.

D. Clean and touch-up protected surfaces that become scratched, marred or otherwise damaged.

3.8 TESTING, ADJUSTMENT AND START UP

A. Perform the following inspections and tests on each system, equipment item, and product:

1. Check wiring for continuity, shorts and grounds.2. Check the setting of protective devices.3. Perform insulation testing using a motor-driven “Megger” tester.


C. Verify that motors have been lubricated before starting to check direction of rotation. Takenecessary precautions to avoid damaging equipment.

D. Energize and operate equipment at full load for a period of not less than 24 hours. Verify correctoperation.

3.9 DEMONSTRATION

A. As part of this Contract, provide for the services of equipment manufacturers’ or their establishedrepresentatives to demonstrate to selected maintenance personnel the correct operation, safetyand maintenance of all electrical equipment under this Contract.







3.1 PREPARATION

A. Transmit submittals and deliverables requirements by this Section.

B. Furnish product as indicated.

C. Ensure substrates are in suitable condition to receive the work of this Section.

3.2 GENERAL

A. Ground and bond: Systems, circuits, and equipment, including but not limited to: panelboards,motors, switches, wiring devices, boxes, and metallic raceways.



B. Provide a ground path of low impedance maximum 10 ohms to protect personnel and equipment

from hazardous or damaging voltage.

3.3 INSTALLATION

A. Bond neutral to ground at service-entrance equipment, in accordance with manufacturer’srecommendations.

B. Install main and local ground bus bars where indicated.

C. Make all metal raceways electrically and mechanically continuous. Install bonding jumpers atexpansion joints.

D. Install an equipment grounding conductor (green) with each feeder and each branch circuit.

E. Measure the resistivity of the ground system in accordance with ANSI 81, and deliver a testreport.



SECTION 16072 - ELECTRICAL SUPPORTS

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Requirements for supports for electrical work.

1.2 REFERENCED SECTIONS

A. (None referenced)



1.3 CITED STANDARDS

A. American Society for Testing and Materials (ASTM):

A123 Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

A153 Zinc Coating (Hot-Dip) on Iron and Steel Hardware

A283 Low and Intermediate Tensile Strength Carbon Steel Plates, Shapes and Bars

A307 Carbon Steel Bolts and Nuts

1.4 NOTED RESTRICTIONS

(None noted)

1.5 QUALITY CONTROL

(None listed)

1.6 SUBMITTALS

A. Product data for each specified product.

1.7 DELIVERABLES

(None listed)

PART 2 - PRODUCTS


1. B-Line Systems, Inc.2. O-Z/Gedney3. Unistrut Corp.

B. Products for use in dry locations shall be hot-dip galvanized in accordance with ASTM A123.

C. Products for use in damp or wet locations, or in contact with concrete, shall be hot-dipgalvanized in accordance with ASTM A123, and shall be 40 mil PVC coated.

2.2 SUPPORTS

A. Anchors and fasteners for:



1. Concrete structural elements; Continuously slotted or spot precast inserts, expansion

anchors, or powder-actuated anchors.2. Steel structural elements: Beam clamps or spring steel clips.3. Concrete surfaces: Self-drilling anchors or expansion anchors.4. Hollow masonry, and gypsum board partitions: Toggle bolts or hollow wall fasteners.5. Solid masonry walls: Expansion anchors or preset inserts.6. Sheet metal: Sheet metal screws.7. Wood: Wood screws.

B. Steel channels: Galvanized, roll-formed from minimum 12 gauge steel, conforming to ASTNA283. Where indicated, steel channels shall also have a minimum 40 mil PVC coating. Thomas& Betts Superstrut, or approved equal.

C. Hanger rods: 3/8 inch diameter minimum, galvanized.

D. Bolts, nuts, screws and washers: Type, grade and class required for the application. For use indamp or wet locations, or in contact with concrete, they shall be hot-dip galvanized inaccordance with ASTM A153.

E. Bolts and nuts: Hex-type in inch sizes, conforming to ASTM A307.

PART 3 - EXECUTION

3.1 PREPARATION

A. Transmit submittals and deliverables required by this Section.

B. Furnish products as indicated.


B. Install supports with sufficient rigidity to prevent vibration and movement, or loads from beingimposed on electrical equipment.

C. Provide supplementary supports where required.

D. Provide supports for electrical work separate from supports for other work.

E. Install surface mounted cabinets and enclosures with four anchors, minimum. Install steelchannels vertically to provide approximately 1" clearance behind cabinets and enclosures.

F. Install junction and pull boxes with four anchors, minimum. Install spacers to provide clearancefrom the supporting surface.



G. Do not drill or puncture structural steel, or cantilever a load off structural steel.

H. Support enclosures in stud walls, by bridging studs, top and bottom.



SECTION 16075 - ELECTRICAL IDENTIFICATION

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes identification of electrical materials, equipment, and installations.

1.2 SUBMITTALS

A. General: Submit each item in this Article according to the Conditions of the Contract andDivision 1 Specification Sections



Division 1 Specification Sections.

B. Product Data for each type of product specified.

C. Schedule of identification nomenclature to be used for identification signs and labels.

D. Samples for each color, lettering style, and other graphic representation required foridentification materials; samples of labels and signs.


A. Comply with NFPA 70.

B. Comply with ANSI C2.

C. Comply with Occupational Safety & Health Administration (OSHA).

1. 29 CFR 1910 Safety and Health Standard.

1.4 SEQUENCING AND SCHEDULING

A. Coordinate installing electrical identification after completion of finishing where identification isapplied to field-finished surfaces.

1.5 SUBMITTALS

A. Product data for each specified product.

B.

Sample of each product.

PART 2 PRODUCTS


1. Carlton Industries, Inc.2. Brady USA, Inc.3. Ideal Industries.

2.2 RACEWAY AND CABLE LABELS

A. Manufacturer's Standard Products: Where more than one type is listed for a specifiedapplication, selection is Installer's option, but provide single type for each application category.Use colors prescribed by ANSI A13.1, NFPA 70, and these Specifications.

1. Conform to ANSI A13.1, Table 3, for minimum size of letters for legend and minimumlength of color field for each raceway or cable size.

2 Color: Black legend on orange field (Conduit marker) Sized to fit conduit



2. Color: Black legend on orange field. (Conduit marker) Sized to fit conduit.3. Legend: Indicates voltage.

B. Adhesive Labels: Preprinted, flexible, self-adhesive vinyl. Legend is over laminated with aclear, weather and chemical resistant coating.

C. Pretensioned, Wraparound Plastic Sleeves: Flexible, preprinted, color-coded, acrylic bands sizedto suit the diameter of the line it identifies and arranged to stay in place by pretensioned grippingaction when placed in position.

D. Colored Adhesive Tape: Self-adhesive vinyl tape not less than 3 mils thick by 1 to 2 incheswide.

E. Tape Markers: Vinyl or vinyl-cloth, self-adhesive, wraparound type with preprinted numbers andletters.

F. Aluminum, Wraparound Marker Bands: Bands cut from 0.014-inch-thick aluminum sheet, withstamped or embossed legend, and fitted with slots or ears for permanently securing around wireor cable jacket or around groups of conductors.

G. Brass or Aluminum Tags: Metal tags with stamped legend, punched for fastener. Dimensions: 2by 2 inches by 0.05 inch.

H. Color coded plastic tape: Self-adhesive, flame-retardant, weather-resistant, vinyl electrical tape,minimum 7 mils thick by 3/4inchess wide, of the color specified.

I. Plastic signs: Self-adhesive or pressure sensitive, pre-printed, flexible vinyl for operationinstructions or warnings, sized for adequate visibility, with suitable wording for each application.

J. OSHA standard “DANGER” signs: Baked enamel aluminum; red, black and white graphics; 14inches by 10 inches, with suitable wording for each application.


M. Cable tags: Laminated three-layer melamine with engraved letters, and small hole for ties.

2.3 ENGRAVED NAMEPLATES AND SIGNS

A. Manufacturer's Standard Products: Where more than one type is listed for a specifiedapplication, selection is Installer's option, but provide single type for each application category.Use colors prescribed by ANSI A13.1, NFPA 70, and these Specifications.

B. Baked-Enamel Signs for Interior Use: Preprinted aluminum signs, punched for fasteners, withcolors, legend, and size as indicated or as otherwise required for the application. 1/4-inchgrommets in corners for mounting.

C Exterior Metal-Backed Butyrate Signs: Weather-resistant nonfading preprinted cellulose



C. Exterior, Metal Backed, Butyrate Signs: Weather resistant, nonfading, preprinted, celluloseacetate butyrate signs with 0.0396-inch, galvanized steel backing, with colors, legend, and size

appropriate to the application. 1/4-inch grommets in corners for mounting.

D. Fasteners for Plastic-Laminated and Metal Signs: Self-tapping stainless-steel screws orNo. 10/32 stainless-steel machine screws with nuts and flat and lock washers.

2.4 MISCELLANEOUS IDENTIFICATION PRODUCTS

A. Cable Ties: Fungus-inert, self-extinguishing, 1-piece, self-locking, Type 6/6 nylon cable tieswith the following features:

1. Minimum Width: 3/16 inch.2. Tensile Strength: 50 lb minimum.3. Temperature Range: Minus 40 to 185 deg F.4. Color: As indicated where used for color coding.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install identification devices according to manufacturer's written instructions.

B. Install labels where indicated and at locations for best convenience of viewing withoutinterference with operation and maintenance of equipment.

C. Lettering, Colors, and Graphics: Coordinate names, abbreviations, colors, and other designationsused for electrical identification with corresponding designations used in the ContractDocuments or required by codes and standards. Use consistent designations throughout theP j


1. Exposed Boxes: Pressure-sensitive, self-adhesive plastic label on cover.2. Concealed Boxes: Plasticized card-stock tags.3. Labeling Legend: Permanent, waterproof listing of panel and circuit number or

equivalent.

G. Color-Code Conductors: Secondary service, feeder, and branch circuit conductors throughoutthe secondary electrical system.

1. 208/120-V System: As follows:

a. Phase A: Black.b. Phase B: Red.c. Phase C: Blue.



c. Phase C: Blue.d. Neutral: White.

e. Ground: Green.

2. 480/277-V System: As follows:

a. Phase A: Brown.b. Phase B: Orange.c. Phase C: Yellow.d. Neutral: White.e. Ground: Green.

3. Factory-apply color the entire length of the conductors, except the following field-applied, color-coding methods may be used in lieu of factory-coded wire for sizes largerthan No. 10 AWG.

a. Colored, pressure-sensitive plastic tape in half-lapped turns for a distance of 6inches from terminal points and in boxes where splices or taps are made. Applythe last 2 turns of tape with no tension to prevent possible unwinding. Use 1-

inch-wide tape in colors as specified. Adjust tape bands to avoid obscuring cableidentification markings.b. Colored cable ties applied in groups of 3 ties of specified color to each wire at

each terminal or splice point starting 3 inches from the terminal and spaced 3inches apart. Apply with a special tool or pliers, tighten to a snug fit, and cut off excess length.

H. Power Circuit Identification: Use metal tags or aluminum wraparound marker bands for cables,feeders, and power circuits in vaults, pull boxes, junction boxes, manholes, and switchboardrooms.

1. Legend: 1/4-inch-steel letter and number stamping or embossing with legend


1. Conductors to Be Extended in the Future: Indicate source and circuit numbers.2. Multiple Power or Lighting Circuits in the Same Enclosure: Identify each conductor with

source, voltage, circuit number, and phase. Use color coding for voltage and phaseindication of secondary circuit.

3. Multiple Control Circuits in the Same Enclosure: Identify each conductor by its systemand circuit designation. Use a consistent system of tags, color coding, or cable markingtape.

J. Apply warning, caution, and instruction signs and stencils as follows:

1. Install warning, caution, and instruction signs where indicated or required to ensure safeoperation and maintenance of electrical systems and of items to which they connect.Install engraved, plastic-laminated instruction signs with approved legend where



g , p g pp ginstructions or explanations are needed for system or equipment operation. Install

butyrate signs with metal backing for outdoor items.

K. Install identification as follows:

1. Apply equipment identification labels of engraved plastic laminate on each major unit of equipment, including central or master unit of each system. This includescommunication, signal, and alarm systems, unless units are specified with their own self-explanatory identification. Except as otherwise indicated, provide a single line of textwith ½-inch-high lettering on 1-1/2-inch-high label; where 2 lines of text are required,use lettering 2 inches high. Use white lettering on black field. Apply labels for each unitof the following categories of equipment.

a. Panelboards, electrical cabinets, and enclosures.b. Access doors and panels for concealed electrical items.c. Motor starters.d. Push-button stations.e. Contactors.

f. Control devices.g. Transformers.

2. Apply designation labels of engraved plastic laminate for disconnect switches, breakers,push buttons, pilot lights, and similar items for power distribution and controlcomponents above, except panelboards and alarm/signal components where labeling isspecified elsewhere. For panelboards, provide framed, typed circuit schedules withexplicit description and identification of items controlled by each individual breaker.

L. Apply cable and wire markers on conductors in boxes, enclosures, or cabinets, where more thanone circuit is present.


1. On electrical equipment enclosures to warn unauthorized personnel.2. To give instructions on procedures for operation and maintenance.

O. Apply danger signs where required by OSHA. Apply appropriate danger signs on electricalequipment enclosures, cabinets, and boxes containing 208 volt circuits.

P. Apply plastic nameplates on electrical equipment including junction boxes and pull boxesidentifying the equipment or function.

1. Attach nameplates to the outside of enclosures with small-size stainless steel screws inaddition to the adhesive backing.

2. In offices and public areas, attach nameplates to the inside of equipment enclosure doorswith adhesive backing only



with adhesive backing only.





3. Thomas & Betts Co.

E. Uninsulated crimp connectors:

1. Burndy Corp.2. Ideal Industries, Inc.3. Thomas & Betts Co.

F. Terminals:

1. Burndy Corp.2. Ideal Industries RN or SN3. Thomas & Betts Co.



G.

Lugs:

1. Burndy Corp.2. Ideal Industries3. Thomas & Betts Co.4. .

H. Heat-shrinkable splices:1. Raychem Corp.2. Thermofit WCS3. Thomas & Betts Co. SHRINK-KON insulators

2.2 WIRING FOR LIGHT AND POWER

A. Wires and conductors shall be copper only.

B. Minimum wire size: #12 AWG. Maximum wire size: 500 kcmil.

C. Stranded copper conductors with 600 volt insulation of one of the following types:

1. Type THHN-THWN conforming to UL.

D. Use of Armored cables type AC or ACL are prohibited.

E. Conductors installed in runs within 6 inches of heating pipes or equipment shall be type AVA.

F. Wire sizes 250 kcmil and larger shall have 37 strands.


C. Ensure substrates are in suitable condition to receive the work of this Section.

3.2 SIZING

A. Size wire so that the operating temperature will not exceed that designated for the type of insulated conductor used with respect to type of circuit, wiring method employed, or number of conductors.

B. Size wire for a maximum voltage drop of 3% for branch circuits.

3.3 INSTALLATION

A. Install wiring in raceways after the raceway system is completed, cleaned and all work whichmay damage wiring has been completed



may damage wiring has been completed.

B. Pull conductors using only UL listed wire pulling lubricant and 1/4 inch polypropylene drag line.

C. Arrange conductors in groups of three phases and neutral (if used) in wireways and largepullboxes.

D. Install branch circuits including switch legs if indicated or required.

E. Install grounding conductors in accordance with Section 16060.

F. Single-phase branch circuits of different phases may be installed as multiwire branch circuitshaving a common neutral conductor, except that lighting branch circuits shall not share acommon neutral with receptacle branch circuits.

G. Install individual neutrals on circuits recommended by the equipment manufacturer.

H. Install no more than one three-phase circuit or three single-phase circuits in each raceway.

I. Install splices only in accessible junction boxes.

J. Color code all wiring in accordance with Section 16075.

3.4 SPLICES AND TERMINATIONS

A. Make splices, taps, and terminations to carry the full capacity of conductors without perceptibletemperature rise.

B. In dry locations, splice conductors #8 AWG and smaller using insulated spring wire connectors orinsulated crimp connectors. For conductors #6 AWG and larger, use insulated crimp connectorsand apply electrical filler tape to fill the indentations and vinyl electrical tape to provide


E. For conductors #10 AWG and smaller, use terminals to connect to equipment designed for usewith terminals.

F. For conductors #8 AWG and larger, use lugs to connect to flat busbars, or to equipment designedfor use with lugs.





SECTION 16130 - RACEWAYS AND BOXES

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes raceways, fittings, boxes, enclosures, and cabinets for electrical wiring.

1. Raceways include the following:

a. EMT.b. RMC.c. PVC externally coated, rigid steel conduits.



c. PVC externally coated, rigid steel conduits.

d.

PVC externally coated.e. LFMC.f. RNC.

2. Boxes, enclosures, and cabinets include the following:

a. Device boxes.b. Outlet boxes.c. Pull and junction boxes.

d. Cabinets and hinged-cover enclosures.

1.2 DEFINITIONS

A. EMT: Electrical metallic tubing.

B. LFMC: Liquidtight flexible metal conduit.

C. RMC: Rigid metal conduit.

D. RNC: Rigid nonmetallic conduit.

1.3 SUBMITTALS

A. Product Data: For fittings, hinged-cover enclosures, and cabinets.

B. Shop Drawings: Include layout drawings showing components and wiring for nonstandard

boxes, enclosures, and cabinets.1.4 QUALITY ASSURANCE


C. Comply with NFPA 70.

1.5 COORDINATION

A. Coordinate layout and installation of raceways and boxes with other construction elements toensure adequate headroom, working clearance, and access.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, manufacturers offering products thatmay be incorporated into the Work include, but not limited to, the following:



1. Metal Conduit and Tubing:

a. Cole-Flex Corp.b. Flexcon, Inc.; Coleman Cable Systems, Inc.c. Monogram Co.; AFC.

2. Conduit Bodies and Fittings:

a. American Electric; Construction Materials Group.

b. Crouse-Hinds; Div. of Cooper Industries.c. O-Z/Gedney; Unit of General Signal.

3. Boxes, Enclosures, and Cabinets:

a. American Electric; FL Industries.b. Crouse-Hinds; Div. of Cooper Industries.c. O-Z/Gedney; Unit of General Signal.

2.2 METAL CONDUIT AND TUBING

A. Aluminum conduits and fittings will not be allowed.

B. EMT anf Fittings: ANSI C80.3.

C. Rigid Steel Conduit: ANSI C80.1.

D. LFMC: Flexible steel conduit with PVC jacket.

E. Fittings: NEMA FB 1; compatible with conduit/tubing materials.


2.4 OUTLET AND DEVICE BOXES

A. Sheet Metal Boxes: NEMA OS 1.

B. Cast-Metal Boxes: NEMA FB 1, Type FD, cast box with gasketed cover.

C. UL 50 and UL 514 A, B.

2.5 ENCLOSURES AND CABINETS

A. Cabinets: NEMA 250, Type 1, galvanized steel box with removable interior panel andremovable front, finished inside and out with manufacturer's standard enamel. Hinged door infront cover with flush latch and concealed hinge. Key latch to match panelboards. Include metalbarriers to separate wiring of different systems and voltage, and include accessory feet where



required for freestanding equipment.1. Dry location: NEMA 1.2. Damp location: NEMA 3R.3. Wet location: NEMA 3R.

B. Boxes with dimensions greater than 12", hinged cover.

C. Boxes with dimensions greater than 36", sectional hinged cover.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine surfaces to receive raceways, boxes, enclosures, and cabinets for compliance withinstallation tolerances and other conditions affecting performance of raceway installation. Donot proceed with installation until unsatisfactory conditions have been corrected.

3.2 WIRING METHODS

A. Outdoors: Use the following wiring methods:

1. Concealed: Rigid steel.2. Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic,

Electric Solenoid, or Motor-Driven Equipment): LFMC.

3. Boxes and Enclosures: NEMA 250, Type 3R.

B. Indoors: Use the following wiring methods:


C. Install switch boxes 48 inches above finished floor and receptacle boxes 18 inches abovefinished floor.

D. For concealed installations where outlet boxes are installed on the inside of exterior walls, ensurethat there is insulation material behind the box to prevent condensation.

E. In damp or wet locations, install watertight conduit hubs on junction and pull boxes.

F. Provide internal barriers where more than one phase of a three-phase system will be installed inan outlet box.

G. Support boxes independently of the raceway system.

H. Provide separate boxes for wiring of different voltages.



3.3 INSTALLATION

A. Install raceways, boxes, enclosures, and cabinets as indicated, according to manufacturer'swritten instructions.

B. Minimum Raceway Size: 3/4-inch trade size.

C. Keep raceways at least 6 inches away from parallel runs of hot-water pipes. Install horizontal

raceway runs above water and piping.

D. Install raceways level and square and at proper elevations. Provide adequate headroom.

E. Complete raceway installation before starting conductor installation.

F. Support raceways as specified in Section 16072 “Supports”.

G. Use temporary closures to prevent foreign matter from entering raceways.

H. Protect stub-ups from damage where conduits rise through floor slabs. Arrange so curvedportion of bends is not visible above the finished slab.

I. Make bends and offsets so ID is not reduced. Keep legs of bends in the same plane and straightlegs of offsets parallel, unless otherwise indicated.

J. Use raceway fittings compatible with raceways and suitable for use and location.

K. Run concealed raceways, with a minimum of bends, in the shortest practical distance consideringthe type of building construction and obstructions, unless otherwise indicated.


1. Run parallel or banked raceways together, on common supports where practical.2. Make bends in parallel or banked runs from same centerline to make bends parallel. Use

factory elbows only where elbows can be installed parallel; otherwise, provide fieldbends for parallel raceways.

M. Join raceways with fittings designed and approved for the purpose and make joints tight.

1. Make raceway terminations tight. Use bonding bushings or wedges at connectionssubject to vibration. Use bonding jumpers where joints cannot be made tight.

2. Use insulating bushings to protect conductors.

N. Tighten set screws of threadless fittings with suitable tools.

O. Terminations: Where raceways are terminated with locknuts and bushings, align raceways to



enter squarely and install locknuts with dished part against the box. Where terminations are notsecure with 1 locknut, use 2 locknuts: 1 inside and 1 outside the box.

P. Where raceways are terminated with threaded hubs, screw raceways or fittings tightly into thehub so the end bears against the wire protection shoulder. Where chase nipples are used, alignraceways so the coupling is square to the box and tighten the chase nipple so no threads areexposed.

Q. Install pull wires in empty raceways. Use No. 14 AWG zinc-coated steel or monofilament

plastic line with not less than 200-lb tensile strength. Leave at least 12 inches of slack at eachend of the pull wire.

R. Install raceway sealing fittings according to manufacturer's written instructions. Locate fittingsat suitable, approved, and accessible locations and fill them with UL-listed sealing compound.For concealed raceways, install each fitting in a flush steel box with a blank cover plate having afinish similar to that of adjacent plates or surfaces. Install raceway sealing fittings at thefollowing points:

1. Where conduits pass from warm to cold locations, such as the boundaries of refrigeratedspaces.

2. Where otherwise required by NFPA 70.

S. Stub-up Connections: Extend conduits through concrete floor for connection to freestandingequipment. Install with an adjustable top or coupling threaded inside for plugs set flush with thefinished floor. Extend conductors to equipment with rigid steel conduit; FMC may be used 6inches above the floor. Install screwdriver-operated, threaded flush plugs flush with floor for

future equipment connections.

T. Flexible Connections: Use maximum of 6 feet of flexible conduit for equipment subject to


1. Repair damage to galvanized finishes with zinc-rich paint recommended bymanufacturer.

2. Repair damage to PVC or paint finishes with matching touchup coating recommended bymanufacturer.

3.5 CLEANING

A. On completion of installation, including outlet fittings and devices, inspect exposed finish.Remove burrs, dirt, and construction debris and repair damaged finish, including chips,scratches, and abrasions.





SECTION 16443 - MOTOR CONTROL CENTERS

PART 1 - GENERAL

1.1 SCOPE

A. The work includes all labor, materials, equipment and services necessary for the installationof a motor control center.

PART 2 - PRODUCTS

2.1 GENERAL

A. Motor Control Centers shall be suitable for operation on the type service indicated on the



drawings with an available fault as indicated on the Contract Drawings.

B. The entire motor control center shall be suitable for operation at the specified available faultcurrent. The motor control center shall be UL labeled by the manufacturer to indicate themaximum available fault current rating, including the structure, bussing, main feeder, and allunits and devices included in the motor control center. This motor control center circuitrating shall be at least as great as the available fault current at the point where the motorcontrol center is to be connected to the system. The bus bracing rating or rating of the maindisconnect shall not be an acceptable substitute for this requirement.

C. All unused space in the motor control center shall be capable of accepting future plug-inunits. Unused space shall be covered by hinged blank doors.

2.2 CONSTRUCTION

A. Motor Control Center structures shall be totally enclosed, dead front, freestandingassemblies, conforming to the requirements of UL-845, NEMA ICS 2-322 and the NEC.

Structures shall be NEMA 1 - gasketed, unless otherwise indicated.

B. Structures which house modular plug-in units shall be 20" wide with a 4" wide verticalwireway. The vertical wireway shall have a separate hinged door. Access to the wirewaysshall not require opening control unit doors. Motor Control Center structures shall be 91.5"high including continuous removable base channels. Each section shall include a single-piece top plate and bottom plate. The top plate and bottom plate shall be removable to easethe cutting of conduit entry openings. It is the responsibility of the contractor to provideMCC in the existing space.

C. Motor Control Center structures shall contain a minimum 6" high horizontal wireway at thef h i d i i 6" hi h h i l i h b f h i


E. All bussing and connections shall be tin plated copper. The main (horizontal) bus shall berated as indicated on motor control center schedule and shall extend the full length of themotor control center. Bus ratings shall be based on a 50 0C maximum temperature rise in a40 degree C ambient. Provisions shall be provided for splicing additional sections ontoeither end of the motor control center. Each section that accepts plug-in units shall beprovided with a vertical bus for distributing power from the main bus to the individual plug-in starter units. The bus shall be of the same material and plating as the main bus, and shallbe rated at 600 amps continuous or as indicated on the motor control center schedule. Thevertical bus shall be connected directly to the horizontal bus stack without the use of risers orother intervening connectors.

F. A tin plated copper ground bus shall be provided that runs the entire length of the motorcontrol center. The ground bus shall be 0.25" x 2.0" and be rated for 600 amps. Acompression lug shall be provided in the motor control center for a #4/0 to 250 MCM ground



cable. The ground bus shall be provided with (6)-0.38" holes for each vertical section toaccept customer supplied ground lugs for any loads requiring a ground conductor.

G. Motor Control Centers shall be separated into shipping blocks of no more than three verticalsections each. Shipping blocks shall not be shipped on their sides. Each shipping block shall include a removable "lifting angle" which will supply an easy means of attaching anoverhead crane or other suitable lifting equipment. Shipping blocks shall be joined at the

jobsite with the use of integral splice bars. These splice bars shall be pre-assembled into the

power bus, not shipped loose in a "splice bar kit". Splice bars should be installed into theend of the motor control center power bus to allow the installation of additional sections.

H. All power bussing and splice connections shall be isolated from the unit compartments andthe wireways. The horizontal bus shall be housed in a molded glass filled polyester supportassembly that provides bus insulation and braces the bus against the forces generated duringa short circuit. The horizontal bus shall be isolated from the top horizontal wireway by agrounded steel barrier. This barrier shall be removable to allow access to the bus andconnections for maintenance. The vertical bus shall be housed in modular glass filledpolyester supports that provide bus insulation and braces the bus against the forces generatedduring a short circuit. These supports shall have openings every 3" for unit stab-onconnections.

I. Units with circuit breaker disconnects through 200 amp frame shall connect to the verticalbus through a spring reinforced stab-on connector. Units with larger disconnects shall beconnected directly to the main horizontal bus with appropriately sized cable or riser bus.Stabs on all plug-in units shall be solidly bussed to the unit disconnect. Cabled stab

assemblies are not permitted. All conducting parts on the line side of the unit shall beshrouded by a suitable insulating material to prevent accidental contact with those parts.


K. A nondefeatable mechanical interlock shall prevent installing or removing a plug-in unitfrom the structure unless the mechanism is first placed in the retract position. Anondefeatable mechanical interlock shall prevent placing the mechanism in the retractposition unless the disconnect is first placed in the "off" position. All nonplug-on units shallutilize a fixed position type operating mechanism in the retract position, unless thedisconnect is first placed in the "off" position. All nonplug-on units shall utilize a fixedposition type operating mechanism which allows complete "on-off" control of the unitdisconnect with clear indication of the disconnect's status. All mechanisms shall include amechanical interlock to prevent the opening of the unit door when the disconnect is in the"on" position. Another mechanical interlock shall prevent an operator from placing thedisconnect in the "on" position while the unit door is open. Provisions shall be provided forlocking all disconnects in the "off" position with up to three padlocks. All circuit breakeroperators shall include a separate "tripped" position.



L. Motor Control Center wiring shall be Class II, Type C. All starters shall be provided withunit control terminal blocks. Provide one additional block of five spare terminal blocks perstarter. Terminal blocks shall be the pull-apart type rated at 20 amps. All current carryingparts shall be tin plated. Terminals shall be accessible from inside the unit when the unitdoor is opened.

2.3 FINISH

A.

All steel parts shall be provided with a UL listed acrylic baked enamel paint finish, exceptplated parts used for ground connections. All painted parts shall undergo a multistagetreatment process to insure a uniform paint coat with high adhesion. The standard paintfinish shall be able to pass at least 300 hours of salt spray per ASTM B117 with less than1/8" loss of paints from a scribe line. Paint color shall be #49 medium light grey per ANSIstandard 255.1-1967.

2.4 CIRCUIT BREAKERS AND MOTOR CIRCUIT PROTECTORS

A. Branch circuit breakers shall be sized as indicated on drawings. Branch circuit breakers shallbe thermal-magnetic trip or magnetic trip molded case circuit breakers as indicated. Circuitbreakers shall have a quick-make, quick-break over center toggle type mechanism and thehandle mechanism shall be trip-free to prevent holding contacts closed against a short circuitor sustained overload. All circuit breaker handles shall assume a position between "ON" and"OFF" when tripped automatically. Multipole circuit breakers shall be common-trip suchthat an overload or short circuit on any one pole will result in all poles openingsimultaneously. Arc extinction is to be accomplished by magnetic arc chutes. All ratings are

to be clearly visible. All circuit breakers shall be listed by and shall conform to applicablerequirements of NEMA ABI-1975 (1981) and meet appropriate classifications of FederalSpecifications W-C 375B/Gen. Circuit breakers with frame sizes larger than 100 amperes


2.5 COMBINATION STARTERS

A. All starters shall be combination magnetic type, unless otherwise indicated and shall beprovided with a Motor Circuit Protector unit disconnect. All starters shall be furnished withNEMA rated magnetic contactors and external manual reset overload relay with eutecticmelting alloy or ambient compensated bimetallic thermal overload units.

B. Starters shall be full voltage single or two speed, reversing or nonreversing, electricallyoperated, electrically held, three-pole assemblies with three phase overload protection.

C. Starters shall be equipped with the following features as a minimum, unless otherwiseindicated on the drawings:

1. 120 volt control transformer with two primary and one secondary fuse sized to



accommodate all connected control circuit devices.

2. Push-to-test red "on" and green "off" pilot lights.

3. Auxiliary contacts (two N.O. two N.C.) in addition to seal-in and interlockingcontacts.

4. HOA Switch.

5. Push-to-test pilot lights color and number as indicated.

6. Provide other auxiliaries as shown on Control Drawings.

2.6 LABELS

A. Engraved, laminated plastic nameplates shall be provided on the motor control center and thedoor of each compartment. Nameplates shall have 1/4-inch high, white, capital letterings on

black background.

B. Control components such as relays, timers, etc., shall be identified by means of durable tagsor printed symbols which shall bear the same code letters or numbers which appear on theshop drawings, wiring diagrams, etc.

2.7 MANUFACTURER

A. Manufacturers: Subject to compliance with requirements, manufacturers offering productsthat may be incorporated into the Work include, but not limited to, the following.

B Motor Control Centers shall be as manufactured by Square D General Electric Cutler


A. Motor Control Centers shall be mounted on a 4-inch high concrete pad and in accordancewith the manufacturer's recommendations. After installation on the concrete pad, all internalcomponents shall be inspected and all connections checked and tightened.

3.2 INSTALLATION

A. Connections to external equipment and connections of the incoming service shall be asshown or as required by equipment manufacturer.

B. Wires from each compartment shall be individually bound and tagged.

C. Enclosures and ground busses shall be grounded as required by the NEC and as indicated onthe drawings.



3.3 TESTING AND ADJUSTING

A. Adjust all motor circuit protector settings to coordinate with the motor size to prevent if fromexceeding its rating or duty cycle.

B. Test Motor Control Center and Components in accordance with Section 16960 -ELECTRICAL FIELD ACCEPTANCE TEST.

C. After installation, the motor control center shall be checked, adjusted, and initially energizedunder the direction of the manufacturer's representative.

3.4 WARRANTY

A. MCC's furnished herein shall include a Five (5) years manufacturer's warranty from date of shipment. Warranty shall include all associate costs i.e. transportation, labor, parts, and other

miscellaneous expenses.


SYSTEM POINT DESCRIPTION

CABINET UNIT HEATER

G R A P H I C

T E M P E R A T U R E

P R E S S U R E

R H

K W

G P M

C F M

P P M

P E R C E N T

P E R C E N T R L A

M O D U L A T E

S E T P O I N T A D J .

P N E U

. T R A N S D U C E R

S T A T U S O N / O F F

F I L T E R S T A T U S

S T A T U S O P E N / C L O S E D

S T A T U S

O F F / O N

O P E N / C L O S E

D

L O C K O U T

E N A B L E / D I S A

B L E

H I G H A N A L O G

L O W

A N A L O G

B I N A R Y

P R O O F

S E N S O R F A I L

F L O W

F A I L

C O M M

. F A I L

D I A G N O S T I C S

T I M E S C H E D U L I N G

O P T

. S T A R T / S T O P

D E M A N D L I M I T I N G

R E S E T

E V E N T P R O G

R A M

D D C

A L A R M I N S T R U C T .

M A I N

. W K

. O R D E R

R U N T I M E

E X P

. M E S S A G E

S E T B A C K / S E

T U P

N I G H T P U R G E

T E N A N T B I L L I N G

C H I L L E R S E Q

U E N C I N G

T O T A L I Z I N G

T I M E D O V E R R I D E

NOTES:

SPACE X X X X X X

SUPPLY FAN X

ALARMS BUILDING AUTOMATION SYSTEMINPUT OUTPUT INPUT OUTPUT

SYSTEM POINT LISTANALOG BINARY SYSTEM FEATURES



GENERAL NOTE:


FAN COIL UNIT

G R A P H I C


P R E S S U R E

R H

K W

G P M

C F M

P P M

P E R C E N T

P E R C E N T R L A

M O D U L A T E


P N E U




S T A T U S O P E N / C L O S E D

S T A T U S

O F F / O N

O P E N / C L O S E

D

L O C K O U T

E N A B L E / D I S A B L E

H I G H A N A L O G

L O W

A N A L O G

B I N A R Y

P R O O F

S E N S O R F A I L

F L O W

F A I L

C O M M

. F A I L



O P T



R E S E T

E V E N T P R O G

R A M

D D C


M A I N

. W K

. O R D E R

R U N T I M E

E X P

. M E S S A G E

S E T B A C K / S E T U P

N I G H T P U R G E


C H I L L E R S E Q

U E N C I N G

T O T A L I Z I N G


NOTES:

SPACE X X X X X X

SUPPLY FAN X

OUTDOOR AIR DAMPER X X

CONTROL VALVE X

COIL FREEZESTAT X X X





GENERAL NOTE:




UNIT VENTILATOR

G R A P H I C


P R E S S U R E

R H

K W

G P M

C F M

P P M

P E R C E N T

P E R C E N T R L A

M O D U L A T E


P N E U




S T A T U S O P E

N / C L O S E D

S T A T U S

O F F / O N

O P E N / C L O S E D

L O C K O U T

E N A B L E / D I S A B L E

H I G H A N A L O G

L O W

A N A L O G

B I N A R Y

P R O O F

S E N S O R F A I L

F L O W

F A I L

C O M M

. F A I L



O P T



R E S E T

E V E N T P R O G R A M

D D C


M A I N

. W K

. O R D E R

R U N T I M E

E X P

. M E S S A G E

S E T B A C K / S E T U P

N I G H T P U R G E


C H I L L E R S E Q U E N C I N G

T O T A L I Z I N G


NOTES:

SPACE X X X X X X

SUPPLY FAN X

OUTDOOR AIR DAMPER X X

CONTROL VALVE X

COIL FREEZESTAT X X X





GENERAL NOTE: