November 12, 1999 - Dayton, Ohio

ADDENDUM NO. 1

SAFETY BUILDING HVAC AND ELEVATOR IMPROVEMENTS PROJECT (10% MBE AND 5% SBE PARTICIPATION GOAL)

April 20, 2018

TO ALL BIDDERS: This addendum, including all articles and corrections listed below, shall be taken into account in preparing the “Bid Forms” and shall become part of the Contract. All bidders are requested to attach the first page of this Addendum to the Bid Form and return to the City. ITEM NO. 1 –BID OPENING DATE CHANGE Revise the Invitation to Bid, Legal Notice, and Instructions to state that the Bid Opening date has changed from Thursday, April 26, 2018 to Thursday, May 3, 2018. ITEM NO. 2 –SUBSTITUTE DRAWING SHEETS Substitute the following attached Drawing Sheets in their entirety. Changes have been clouded. Sheets MD1.0, M1.0, M1.2, M5.3, M5.4, M6.1, M7.2, M7.3. ITEM NO. 3 –REVISION DRAWING SHEET M0.1 Revise General Note on Drawing Sheet M0.1 to read as follows: “There are instances throughout the building of existing plaster or tile ceilings above the existing ACT lay-in ceilings. Where existing plaster or tile ceilings (concealed or exposed) interfere with HVAC work, carefully remove portion of existing plaster or tile ceiling as required to perform work. If plaster or tile ceiling is partially removed, it shall be resupported at edges of opening.” ITEM NO. 4 –REVISION DRAWING SHEET M0.1 Revise abbreviation list on Drawing Sheet M0.1 to read as follows: “D DEPTH/DEEP OR CONDENSATE DRAIN PIPE.” ITEM NO. 5 –REVISION DRAWING SHEET MD1.2 Delete extraneous equipment tag “EF-3” in Room 217.

ITEM NO. 6 –REVISION DRAWING SHEET MD1.3 Delete extraneous equipment tag “EF-2” in Room 312. ITEM NO. 7 –REVISION DRAWING SHEET MD1.5 Delete extraneous Plan Note “7” located between jail elevator and AHU-2. ITEM NO. 8 –REVISION DRAWING SHEET M1.5 Change AHU-1 condensate drain pipe tag from “C” to “D”. ITEM NO. 9 –REVISION DRAWING SHEET M5.1 In AHU-1 cold deck coil piping detail, change AHU cooling coil control valve from 3-way valve to 2-way valve. ITEM NO. 10 –REVISION DRAWING SHEET M7.1 Change AHU cooling coil control valve from 3-way to 2-way. ITEM NO. 11 –REVISION DRAWING SHEET M7.1 In point table, change Freezestat from “Digital Alarm” to “Low Limit Alarm” (hardwired switch device). ITEM NO. 12 –REVISION DRAWING SHEET M7.1 In point table, for RLSPL (Relief Air Duct Static Pressure Limit), add a dot in the “Manual Reset” column under Devices>Features; and change from “Digital Alarm” to “Low Limit Alarm” (hardwired switch device). ITEM NO. 13 –REVISION SPECIFICATION SECTION 23 09 23 Revise Section 2.1 to add “D. Comfort Systems USA” to list of acceptable manufacturers.

ITEM NO. 14 –REVISION SPECIFICATION SECTION 23 37 13 Revise Section 2.1 to add “E. Krueger” to list of acceptable manufacturers. ITEM NO. 15 –REVISION SPECIFICATION SECTION 23 81 01 Revise 2.1-B-2-a to read as follows: “Front panel shall be hinged, 16 gauge steel providing 90° swing, with removable safety chain(s) to prevent the panel from swinging fully open accidentally. Panel shall include integral inlet and discharge duct collars, channel-formed edges and ¼-turn allen-head cam fasteners.” ITEM NO. 16 –REVISION SPECIFICATION SECTION 23 81 01 Revise 2.1-E to read as follows: “Drain Pan: 18 gage galvanized steel extending the length and width of the coil and pitched for drainage. Pan shall be externally coated with two-part closed cell foam insulation. Units shall be provided with condensate overflow switch by unit manufacturer.” ITEM NO. 17 –REVISION SPECIFICATION SECTION 23 81 01 Revise 2.1-G to read as follows: “Piping package: Coil piping specialties associated with units shall be provided by contractor in field.” ITEM NO. 18 –REVISION SPECIFICATION SECTION 23 81 01 Revise Section 2.2-A to add “4. Reznor” to list of acceptable manufacturers.

April 20, 2018 Keith Steeber, Acting Division Manager

Department of Public Works

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HVAC DESIGN DATA

OUTDOOR DESIGN TEMPERATURES

90.3 DEG. F Db SUMMER

DESIGN ALTITUDE: 1004 FT.73.6 DEG. F Wb SUMMER

0 DEG. F Db WINTER

INDOOR AREA DESIGN CONDITIONS

SUMMER WINTER

Db (°F) % HUMIDITY Db (°F) % HUMIDITY

PENTHOUSE NOTE 1 NOTE 1 50 NOTE 2

ALL OTHER SPACES 72 50 70 NOTE 2

NOTES:

1. PENTHOUSE IS TEMPERED DURING AHU ECONOMIZER MODE BY VARYING VOLUME OF BUILDING RELIEF AIR AND

DOES NOT HAVE DIRECT TEMPERATURE OR HUMIDITY CONTROL IN THE SUMMER.

2. BUILDING DOES NOT HAVE WINTER HUMIDIFICATION.

DUCT PRESSURE CLASS & LEAKAGE TABLE

SYSTEM DUCT SYSTEM

SMACNA

CONST.

CLASS W.G.

SMACNA

SEAL

CLASS

SMACNA LEAKAGE CLASS

RECTANGULAR

DUCT

ROUND DUCT

ALL

SYSTEMS

ALL DUCTWORK EXCEPT AS LISTED BELOW. ± 2" A 6 3

SUPPLY AIR DUCTS FROM OUTLET OF AIR

HANDLING UNIT TO SUPPLY AIR DEVICES.

2" A 6 3

RETURN AIR DUCTS FROM CEILING REGISTERS TO

INLET OF AH-UNIT.

-2" A 6 3

GENERAL EXHAUST DUCTS. -2" A 6 3

OUTSIDE AIR DUCTS. -2" A 6 3

UNIT HEATER SCHEDULE

MARK MANUFACTURER MODEL NO. AIRFLOW

HEATING

CAPACITY

FLOW WPD VALVE TYPE

ELECTRICAL

NOTES

SERVICE HP

PUH-1 TRANE S-60 900 CFM 33.6 MBH 2.6 GPM 0.1 FT 2 WAY 120 / 1 1/201, 2, 3

NOTES:

1. SUPPORT HEATER FROM STRUCTURE ABOVE WITH MINIMUM (2) 3/8" DIAMETER THREADED ROD.

2. PROVIDE UNIT MOUNTED DISCONNECT SWITCH.

3. HEATING CAPACITIES BASED ON 180° F EWT, 60° F EAT.

SUMP PUMP SCHEDULE

MARK MANUFACTURER MODEL FLOW HEAD

ELECTRICAL

COMMENTS

VOLTAGE PHASE HP

SUMP BELL & GOSSETT SC0311AV 15 20 115 1 1/3

ELEVATOR PIT SUMP PUMP. PROVIDE 10' POWER CORD, CHECK VALVE IN DISCHARGE LINE, AND STAINLESS

STEEL SUMP COVER FLUSH WITH FINISH FLOOR. ROUTE DISCHARGE AS SHOWN TO DRAIN INDIRECTLY TO

EXISTING MOP SINK. PUMP SHALL INCLUDE OIL SENSING SWITCH SUCH THAT THE PUMP DOES NOT

DISCHARGE OIL TO THE SANITARY SYSTEM. THE OIL SENSING SWITCH SHALL INCLUDE AN AUDIBLE ALARM

AS WELL AS DRY CONTACTS TO ROUTE ALARMS TO THE BUILDING AUTOMATION SYSTEM.

AIR HANDLING UNIT SCHEDULE

MARK MANUFACTURER

SUPPLY FAN HOT WATER HEATING COIL CHILLED WATER COOLING COIL

ELECTRIC

AL

FILTERS

AIRFLOW MIN OA TSP ESP FAN QTY HP RPM FAN / DRIVE TYPE CAPACITY EAT LAT APD EWT LWT FLOW AUTO VALVE CV WPD TOTAL SENSIBLE

EAT (DB/WB) LAT (DB/WB)

APD EWT LWT FLOW AUTO VALVE CV WPD VOLTAGE PHASE MCA MOCP

AHU-1 CARRIER15,000 CFM 3,010 CFM

4.5" 2.1" 4 7.5 3600 PLENUM / DIRECT 390.5 MBH 55.9°F 80.0°F 0.5 IN. WC. 180°F 150°F 26.9 GPM 22.3 27 FT 378.6 MBH 343.2 MBH 75.7°F / 63.0°F 54.5°F / 54.4°F 1.00 IN. WC. 42.0°F 56.0°F 54.1 26 2.0 FT 208 3 128 213 2" MERV-8

EXTERIOR WALL LOUVER SCHEDULE

MARK MANUFACTURER MODEL AIRFLOW MAX. APD WIDTH HEIGHT COLOR

L-1 AIROLITE K6774 12,000 CFM 0.1 in-wg 6'-0" 4'-0" BY ARCHITECT

L-2 AIROLITE K6774 15,000 CFM 0.12 in-wg 4'-8" (1) 7'-0" BY ARCHITECT

L-3 AIROLITE K6774 350 CFM 0.06 in-wg 2'-0" 1'-0" BY ARCHITECT

L-4 AIROLITE K6774 375 CFM 0.03 in-wg 2'-8" (1) 1'-4" (1) BY ARCHITECT

NOTES:

1. THIS LOUVER WILL BE INSTALLED IN EXISTING BUILDING OPENING. OPENING DIMENSIONS WITH THIS NOTE ARE EXISTING TO

REMAIN AND SHALL BE FIELD VERIFIED PRIOR TO ORDERING.

MECHANICAL VARIABLE FREQUENCY DRIVE SCHEDULE

MARK MOTOR HP

ELECTRICAL

EQUIPMENT SERVED BYPASS

VOLTAGE PHASE

VFD-RF 7.5 208 3 RELIEF FAN YES

EXHAUST FAN SCHEDULE

MARK MANUFACTURER MODEL AIRFLOW ESP MAX. SONES DRIVE TYPE

ELECTRICAL

NOTE

SERVICE HP (W)

EF-1 GREENHECK G-123-VG 1,240 CFM 0.75 in-wg 12.2 DIRECT 115 / 1 1/2

1, 2

EF-2 GREENHECK SQ-100-VG 1,000 CFM 0.75 in-wg 9.6 DIRECT 115 / 1 1/4

1, 2

EF-3 GREENHECK SP-B70 70 CFM 0.75 in-wg 0.8 DIRECT 115 / 1 (17)

EF-4 GREENHECK SP-B70 70 CFM 0.75 in-wg 0.8 DIRECT 115 / 1 (17)

RF-1 GREENHECK BSQ-300 12,000 CFM 1.50 in-wg 25 BELT 208/3 7.5

1

NOTES:

1. PROVIDE UNIT MOUNTED DISCONNECT SWITCH.

2. PROVIDE INTEGRAL GRAVITY BACKDRAFT DAMPER.

HYDRONIC PUMP SCHEDULE

MARK SYSTEM MANUFACTURER SERIES SIZE

PUMP

FLUID

MIN.

EFFICIENCY

ELECTRICAL

VFD

FLOW HEAD

SERVICE HP RPM

HWP-5 AHU HEATING COIL BOOSTER PUMP BELL & GOSSETT e-90 1.25AAB 27 GPM 45 FT WATER 56% 208 / 3 1.5 3600 NO

FIXED PLATE ENERGY RECOVERY UNIT SCHEDULE

MARK MANUF. MODEL MODE

MIN. SUPPLY

AIR EFF. %

SUPPLY AIR EXHAUST AIR

ELECTRICAL

NOTES

SUPPLY CFM

E.S.P.

IN.

ENT. AIR DEG. F LVG. AIR DEG. F

EXHAUST

CFM

E.S.P. IN.

ENT. AIR DEG. F

DB WB DB WB

DB WB

SERVICE MCA

ERV-1 RENEWAIRE EV450IN

SUMMER 60

350 0.5

90.3 73.6 76.5 65.90

350.0 0.5

72.0 60.0

120V / 1PH 61, 2, 3

WINTER 70 0.0 -1.5 52.1 44.90 70.0

ERV-2 RENEWAIRE EV450IN

SUMMER 59

375 0.5

90.3 73.6 76.7 66.10

375.0 0.5

72.0 60.0

120V / 1PH 61, 2, 3

WINTER 69 0.0 -1.5 51.5 44.30 70.0

NOTES:

1. PROVIDE UNIT MOUNTED DISCONNECT SWITCH.

2. SUPPORT UNIT FROM STRUCTURE ABOVE WITH MINIMUM 3/8" DIAMETER THREADED ROD.

3. PROVIDE INTEGRAL MERV 8 FILTERS IN SUPPLY AND EXHAUST ARISTREAMS, UPSTREAM OF HEAT EXCHANGER

FAN COIL UNIT SCHEDULE

MARK MANUFACTURER MODEL NO.

AIRFLOW

(CFM)

ESP

(IN. WG.)

HEATING COIL COOLING COIL ELECTRICAL

NOTES

CAPACITY

MBH

FLOW

(GPM)

WPD

(FT.)

VALVE

TYPE

CAPACITY

TOTAL MBH

CAPACITY

SENS. MBH

FLOW

(GPM)

WPD

(FT.)

VALVE

TYPE

SERVICE

MOTOR

FLA

FCU-1 CARRIER 42VBC08 600 - 26.8 1.8 10.0 2 WAY 18.10 12.36 2.7 10.0 2 WAY 120V / 1PH 2.5 1, 2

FCU-2 CARRIER 42VBC04 430 - 18.0 2.0 10.0 2 WAY 14.50 9.73 3.0 10.0 2 WAY 120V / 1PH 1.4 1, 2

FCU-3 CARRIER 42VBC08 550 - 27.1 2.5 17.0 2 WAY 21.20 13.55 4.0 10.0 2 WAY 120V / 1PH 2.5 1, 2

FCU-4 CARRIER 42VBC08 550 - 43.6 5.3 17.0 2 WAY 17.59 11.84 2.7 10.0 2 WAY 120V / 1PH 2.5 1, 2

FCU-5 CARRIER 42VBC04 340 - 13.6 0.8 10.0 2 WAY 10.42 7.11 1.8 10.0 2 WAY 120V / 1PH 1.4 1, 2

FCU-6 CARRIER 42DEA20 1840 0.4 45.0 3.0 17.0 2 WAY 51.48 33.61 8.6 10.0 2 WAY 120V / 1PH 24 1, 2, 3

FCU-7 CARRIER 42CKA10 615 0.3 8.8 0.6 10.0 2 WAY 13.06 11.08 2.2 10.0 2 WAY 120V / 1PH 5.6 1, 2, 3

FCU-8 CARRIER 42CKA10 615 0.3 3.1 0.3 10.0 2 WAY 15.12 9.61 2.6 10.0 2 WAY 120V / 1PH 5.6 1, 2, 3

FCU-9 CARRIER 42DEA16 1500 0.45 20.8 1.4 10.0 2 WAY 27.76 22.44 4.7 10.0 2 WAY 120V / 1PH 24 1, 2, 3

NOTES:

1. HEATING CAPACITIES BASED ON 180° F EWT, 70° F EAT. COOLING CAPACITIES BASED ON 42° F EWT, 78° F DB / 67° F WB EAT.

2. PROVIDE UNIT MOUNTED DISCONNECT SWITCH.

3. SUPPORT FAN COIL UNIT FROM STRUCTURE ABOVE WITH MINIMUM 3/8" DIAMETER THREADED ROD.

4. PROVIDE CUSTOM SIZE ENLARGED END POCKETS ON BOTH ENDS OF FAN COIL UNIT CABINET, TO ACCOMMODATE FIELD-INSTALLED PIPING PACKAGES AND EXISTING FIELD CONDITIONS. REFER TO FAN COIL

UNIT INSTALLATION DETAIL ON SHEET M5.1 FOR MORE INFORMATION.

COMPUTER ROOM AIR CONDITIONER SCHEDULE

MARK

CONDENSING

UNIT

MANUFACTURER INDOOR MODEL OUTDOOR MODEL

NOMINAL COOLING

CAPACITY

MIN SEER

ELECTRICAL

NOTES

VOLTAGE PHASE MCA MOP

AC-1 CU-1 CARRIER 40MHHC24-3 38MHRC24A-3 2.0 TON 17.5 208 1 16 25

AC-2 CU-2 CARRIER 40MHHC12-3 38MHRC12A-1 1.0 TON 16.5 208 1 7 15

AC-3 CU-3 CARRIER 40MHHC12-3 38MHRC12A-1 1.0 TON 16.5 208 1 7 15 1

AC-4A

CU-4 CARRIER

40MAQB24B-3

38MGRQ48E-3 4.0 TON 22.4 208 1 35 50

AC-4B 40MAQB24B-3

AC-5A

CU-5 CARRIER

40MAQB18B-3

38MGRQ36D-3 3.0 TON 21.5 208 1 35 50

AC-5B 40MAQB18B-3

NOTES:

1. PROVIDE CONDENSATE PUMP BY UNIT MANUFACTURER.

AIR DEVICE SCHEDULE

TAG DEVICE SIZE NECK SIZE

TYPE

BASIS OF DESIGN

MANUFACTURER

BASIS OF DESIGN

MODEL

DUTY MOUNTING FINISH

NOTES

DIFFUSER GRILLE REGISTER SUPPLY RETURN EXHAUST

DUCT /

WALL

SURFACE

LAY-IN

CEILING

DRYWALL

CEILING

EXPOSED

HEIGHT

TO

BOTTOM

WHITE

ENAMEL

PAINTED -

COLOR BY

ARCHITECT

CD1 24x24 6" DIA. · TITUS OMNI · · · 1

CD2 24x24 8" DIA. · TITUS OMNI · · · 1

CD3 24x24 10" DIA. · TITUS OMNI · · · 1

CG1 24x12 22x10 · TITUS 50F · · ·

CG2 24x24 22x22 · TITUS 50F · · ·

CR1 8X8 6X6 · TITUS 50F · · · 2

NOTES:

1 PROVIDE MANUFACTURER'S INTEGRAL MOLDED MINERAL FIBER BLANKET ON BACK OF DIFFUSER.

2 PROVIDE MANUFACTURER'S INTEGRAL OPPOSED BLADE DAMPER.

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HEATING HOT WATER SYSTEM SCHEMATIC

SCALE: NO SCALE

HEATING HOT WATER SEQUENCES OF OPERATION:

BOILER #1

HWP-2

HWP-1

HWP-1 STARTER

EN-1

DI

CS-1

HWP-2 STARTER

EN-2

DI

CS-2

HWR

AI

HWSAI

LO

W LIM

IT

A

LA

RM

HIG

H LIM

IT

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MA

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BA

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IT

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WIT

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PR

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SU

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WIT

CH

HEATING HOT WATER RETURN TEMPERATURE

HWS

HWR

POINT

NAME

DESCRIPTION

OT

HE

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HEATING HOT WATER INPUT/OUTPUT SUMMARY TABLE

APPLICATIONS

SOFTWAREPOINT TYPE

DIGITAL

INPUT

ANALOG

OUTPUT

ANALOG DIGITAL

FIELD

DEVICES

FEATURES

ACCESS.

TO NOTE

NO.

REFER

HEATING HOT WATER SUPPLY TEMPERATURE

EN-1 ENABLE/DISABLE COMMAND HEATING HOT WATER PUMP #1

CS-1 STATUS HEATING HOT WATER PUMP #1

FA

IL S

AF

E O

PE

N

BOILERS, PUMPS, AND COMBUSTION AIR DAMPERS SHALL OPERATE IN A LEAD/LAG CONFIGURATION. THE LEAD BOILER, PUMP, AND COMBUSTION AIR DAMPER SHALL AUTOMATICALLY BE ROTATED WEEKLY (ADJ.)

BY THE BUILDING AUTOMATION SYSTEM (BAS).

HEATING PLANT SHALL BE DISABLED WHEN OUTSIDE AIR TEMPERATURE IS ABOVE 60 DEG.F (ADJ). WHEN OUTSIDE AIR TEMPERATURE IS 60 DEG.F OR LESS, AND UPON A CALL FOR HEATING, THE LEAD PUMP

SHALL START AND THE LEAD COMBUSTION AIR DAMPER SHALL OPEN. IF THE LEAD PUMP FAILS, IT SHALL BE DISABLED, THE LAG PUMP SHALL START, AND AN ALARM SHALL BE GENERATED AT THE BAS. IF THE

LEAD COMBUSTION AIR DAMPER IS NOT PROVEN OPEN, IT SHALL BE DISABLED, THE LAG COMBUSTION AIR DAMPER SHALL OPEN, AND AN ALARM SHALL BE GENERATED AT THE BAS. ONCE WATER FLOW IS

PROVEN AND COMBUSTION AIR DAMPER IS PROVEN OPEN, LEAD BOILER SHALL BE ENABLED. CONTROL PANEL INTEGRAL TO BOILERS SHALL CONTROL BURNER FIRING RATE TO MAINTAIN A CONSTANT HEATING

HOT WATER SUPPLY TEMPERATURE OF 180 DEG.F.

IF THE HEATING HOT WATER SUPPLY TEMPERATURE CANNOT BE MAINTAINED FOR 15 CONSECUTIVE MINUTES (ADJ.), THE LAG PUMP SHALL START, LAG COMBUSTION AIR DAMPER SHALL OPEN, AND ONCE BOTH

ARE PROVEN, LAG BOILER SHALL BE ENABLED AND RUN IN PARALLEL WITH LEAD BOILER TO MAINTAIN HEATING HOT WATER SUPPLY TEMPERATURE SETPOINT OF 180 DEG.F. THE LAG BOILER & PUMP SHALL BE

DISABLED AND LAG COMBUSTION AIR DAMPERS SHALL CLOSE WHEN THE TEMPERATURE DIFFERENCE BETWEEN THE HEATING HOT WATER SUPPLY & RETURN IS LESS THAN 10 DEG.F (ADJ.) FOR MORE THAN 15

MINUTES. PROVIDE A 15 MINUTE (ADJ.) RESTART TIME DELAY TO ALLOW CONDITIONS TO STABILIZE BEFORE RE-ENABLING THE LAG BOILER, PUMP, AND DAMPER.

HOT WATER PUMPS SHALL RUN FOR 5 MINUTES (ADJ) AFTER ASSOCIATED BOILER HAS BEEN DISABLED.

TO FACILITATE FUTURE REPLACEMENT OF PUMPS AND INSTALLATION OF VFD'S, 2-WAY CONTROL VALVES ARE USED THROUGHOUT THE HEATING HOT WATER SYSTEM. A MODULATING BYPASS CONTROL VALVE

(V-1) AND ASSOCIATED LOOP DIFFERENTIAL PRESSURE SENSOR (DP-1) WILL BE PROVIDED UNDER THIS PROJECT TO ACCOMMODATE EXISTING CONSTANT SPEED PUMPS. REQUIRED SETPOINT OF EACH LOOP DP

SENSOR TO PROVIDE DESIGN FLOW IN LOOP SHALL BE DETERMINED DURING SYSTEM BALANCING. IF LOOP DP RISES ABOVE SETPOINT, CORRESPONDING BYPASS CONTROL VALVE SHALL MODULATE OPEN TO

MAINTAIN LOOP DP AT SETPOINT. IF DP IS AT OR BELOW SETPOINT, CORRESPONDING BYPASS CONTROL VALVE SHALL REMAIN CLOSED.

BYPASS CONTROL VALVE (V-1) SHALL INDEX TO FULLY OPEN WHEN THE BOILER PLANT AND ASSOCIATED PUMPS ARE SHUT DOWN. THE HEATING WATER PLANT SHALL ALWAYS START WITH THE BYPASS VALVE

FULLY OPEN.

DO

DO

HEATING COIL

FAN COIL UNIT

HWS

DO

EN-1

DO

NC

M2

HWR

FAN COIL UNIT SCHEMATIC

N.T.S.

FAN COIL UNIT INPUT/OUTPUT SUMMARY TABLE

NAME

POINT

DESCRIPTION

POINT TYPE

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

ID

IT

Y

PR

ES

SU

RE

OT

HE

R

ANALOG

INPUT

FEATURES

FIELD

FA

IL S

AF

E O

PE

N

FA

IL S

AF

E C

LO

SE

D

NOTES

SPACE TEMPERATURE SENSOR (UNIT MOUNTED IN RETURN AIR STREAM)T1

COOLING VALVE AND ACTUATORM1

DIGITAL

OUTPUT

DEVICES

FURNISHED BY FAN COIL UNIT MANUFACTURER. INSTALLED BY HVAC CONTRACTOR.

FURNISHED BY FAN COIL UNIT MANUFACTURER AND FACTORY INSTALLED.

PROVIDED BY TEMPERATURE CONTROL CONTRACTOR.

NOTES:

1.

ALL FAN COIL UNIT CONTROL COMPONENTS SHALL BE FURNISHED BY UNIT MANUFACTURER AND

FACTORY INSTALLED, INCLUDING BUT NOT LIMITED TO: OPEN BACNET MICROPROCESSOR

CONTROLLER, RETURN AIR TEMPERATURE SENSOR, DISCHARGE AIR TEMPERATURE SENSOR,

ENABLE/DISABLE RELAY, CURRENT TRANSDUCER FOR STATUS PROOF, AND HEATING & COOLING COIL

CONTROL VALVES. THERMOSTATS FOR FCU-6,7,8,9 SHALL BE PROVIDED BY TEMPERATURE CONTROL

CONTRACTOR.

TEMPERATURE CONTROL CONTRACTOR SHALL INTEGRATE ALL UNITS TO BAS HEAD-END VIA BACNET,

AND PROVIDE GRAPHICS. REFER TO SPECS FOR LIST OF BACNET POINTS TO BE INTEGRATED. THE FAN

COIL UNITS SHALL BE ENABLED BY THE BUILDING AUTOMATION SYSTEM PER AN OPERATOR DEFINED

SCHEDULE (DATE/TIME) TO RUN IN EITHER AN OCCUPIED OR UNOCCUPIED MODE. BAS SHALL SEND

ROOM TEMPERATURE SETPOINT TO FAN COIL UNIT CONTROLLERS AS DESCRIBED BELOW.

TEMPERATURE CONTROL CONTRACTOR SHALL VERIFY CONTROL FUNCTIONALITY OF ALL FAN COIL

UNITS AFTER CONTROL INSTALLATION & PROGRAMMING IS COMPLETE.

OCCUPIED MODE:

UNIT-LEVEL BACNET DDC CONTROLLER SHALL CONTROL FAN MOTOR AND VALVES M1 & M2. ON A RISE

IN TEMPERATURE ABOVE COOLING SETPOINT (75 DEG.F, ADJ.), CONTROLLER SHALL START THE FAN

AND COOLING COIL CONTROL VALVE M1 SHALL OPEN TO THE COIL TO MAINTAIN ROOM TEMPERATURE

SETPOINT (HEATING COIL CONTROL VALVE M2 SHALL REMAIN CLOSED). ON A DROP IN TEMPERATURE

BELOW HEATING SETPOINT (70 DEG.F, ADJ.), CONTROLLER SHALL START THE FAN AND HEATING COIL

CONTROL VALVE M2 SHALL OPEN TO THE COIL TO MAINTAIN ROOM TEMPERATURE SETPOINT (COOLING

COIL CONTROL VALVE M1 SHALL REMAIN CLOSED). LOCAL ZONE TEMPERATURE SETPOINT

ADJUSTMENT SHALL BE LIMITED TO PLUS OR MINUS 2 DEG.F FROM HEATING AND COOLING SETPOINTS

LISTED ABOVE. COORDINATE CONTROLS WITH MANUFACTURER (FCU-6,7,8,9 ONLY).

UNOCCUPIED MODE:

THE FAN COIL UNIT SHALL REMAIN DISABLED (FAN OFF AND BOTH COIL CONTROL VALVES CLOSED)

UNLESS THE SPACE FALLS BELOW OR RISES ABOVE THE NIGHT SETBACK SPACE TEMPERATURE

SETPOINTS (60 DEG.F HEATING, 80 DEG.F COOLING, ADJ.). IF A UNIT CALLS FOR UNOCCUPIED

HEATING/COOLING, THE UNIT SHALL ENABLE AND RUN PER THE OCCUPIED SEQUENCE ABOVE, IN

ORDER TO MAINTAIN THE SPACE AT NIGHT SETBACK SPACE TEMPERATURE SETPOINTS.

FAN COIL UNIT CONTROL:

FAN ENABLE/DISABLE COMMANDEN-1

CO

NT

RO

L R

ELA

Y

CO

NT

AC

TO

R

OT

HE

R

T1

DIGITAL

CU

RR

EN

T S

WIT

CH

STATUS FAN COIL UNITCS-1

WALL MOUNTED

AI T

HEATING COIL

UNIT HEATER

HWS

DO

EN-1

DO

NO

M1

HWR

THERMOSTAT

UNIT HEATER SCHEMATIC

N.T.S.

UNIT HEATER INPUT/OUTPUT SUMMARY TABLE

NAME

POINT

DESCRIPTION

POINT TYPE

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

ID

IT

Y

PR

ES

SU

RE

OT

HE

R

ANALOG

INPUT

FEATURES

FIELD

FA

IL S

AF

E O

PE

N

FA

IL S

AF

E C

LO

SE

D

NOTES

WALL MOUNTED THERMOSTATT

HEATING VALVE AND ACTUATORM1

DIGITAL

OUTPUT

DEVICES

FURNISHED BY CONTROLS CONTRACTOR. INSTALLED BY HVAC CONTRACTOR. SPRING RANGE TO MATCH CONTROLLER.

NOTES:

1.

DDC ROOM THERMOSTAT SHALL CONTROL FAN MOTOR AND VALVE M1. ON A

DROP IN TEMPERATURE BELOW SETPOINT (60 DEG.F, ADJ.), THERMOSTAT

SHALL START THE FAN AND HEATING COIL CONTROL VALVE M1 SHALL OPEN TO

THE COIL TO MAINTAIN ROOM TEMPERATURE SETPOINT.

IF PENTHOUSE TEMPERATURE DROPS BELOW 45 DEG.F (ADJ.) AS SENSED BY

EITHER OF THE PROPELLER UNIT HEATER THERMOSTATS, AN ALARM SHALL BE

INITIATED AT THE BAS HEAD END.

UNIT HEATER CONTROL:

FAN ENABLE/DISABLE COMMANDEN-1

CO

NT

RO

L R

ELA

Y

CO

NT

AC

TO

R

OT

HE

R

DI CS-1

DIGITAL

CU

RR

EN

T S

WIT

CH

STATUS UNIT HEATERCS-1

CHS

DO

NC

M1

CHR

COOLING COIL

BOILER #2

EN-3 ENABLE/DISABLE COMMAND BOILER #1

EN-2 ENABLE/DISABLE COMMAND HEATING HOT WATER PUMP #2

CS-2 STATUS HEATING HOT WATER PUMP #2

EN-4 ENABLE/DISABLE COMMAND BOILER #2

AL-1 ALARM BOILER #1

AL-2 ALARM BOILER #2

THE SPACE TEMPERATURE SENSOR SERVING THE DATA ROOMS 005, 111, AND 337, SHALL SEND A HIGH TEMPERATURE ALARM TO THE BAS WHENEVER THE TEMPERATURE

RISES ABOVE 80°F (ADJ).

COORDINATE WITH THE FIRE ALARM CONTRACTOR AND PROVIDE ALL NECESSARY CONTACTS TO SHUT DOWN ALL MECHANICAL EQUIPMENT DURING A FIRE ALARM. THE

SYSTEM SHALL BE CAPABLE OF RESTARTING EQUIPMENT GLOBALLY UPON A "NO ALARM SIGNAL" FROM THE FIRE ALARM PANEL.

THE BAS SHALL MONITOR THE ALARM STATUS OF THE ELEVATOR SUMP PUMP PACKAGE VIA DRY CONTACTS IN PUMP CONTROL PANEL.

THE BAS SHALL MONITOR THE RUN STATUS OF THE GENERATOR VIA DRY CONTACTS IN GENERATOR CONTROL PANEL.

MISCELLANEOUS SYSTEM SEQUENCES OF OPERATION:

HEATING VALVE AND ACTUATORM2

AI

DI

CS-1

2.

NC

CD-1

DO

NC

CD-2

DO

ES-1ES-2

DIDI

CD-1 COMBUSTION AIR DAMPER #1

ES-1 COMBUSTION AIR DAMPER #1 END SWITCH

CD-2 COMBUSTION AIR DAMPER #2

ES-2 COMBUSTION AIR DAMPER #2 END SWITCH

FA

IL S

AF

E C

LO

SE

D

EN-3DO

EN-4DO

AL-3DI

AL-4DI

DISCHARGE AIR TEMPERATURE SENSOR (UNIT MOUNTED IN SUPPLY AIR STREAM)T2

T2 AI

DP-1 HOT WATER LOOP DIFFERENTIAL PRESSURE

V-1 HOT WATER LOOP BYPASS VALVE

WALL MOUNTED

AI T3

THERMOSTAT

FOR FCU-6,7,8,9 ONLY

SPACE THERMOSTAT (FCU-6,7,8,9 ONLY)T3

3.

AO

V-1

AI

DP-1

sheet

checked by

drawn by

date

project number

bu

ild

in

g im

pro

ve

me

nts fo

r:

da

yto

n, o

hio

4

54

02

33

5 w

est th

ird

stre

et

city o

f d

ayto

n sa

fe

ty b

uild

in

g

revised

issued

STA

N E

ngineers

30

0 W

. M

on

um

en

t A

ve

., S

uite

2

00

Da

yto

n, O

H 4

54

02

ph

on

e: (9

37

) 4

38

-0

17

7

ww

w.sta

ne

ng

in

ee

rs.co

m

Sin

ce

1

98

1

te

mp

era

tu

re

co

ntro

ls

CHILLED WATER SYSTEM SCHEMATIC

SCALE: NO SCALE

THE CHILLED WATER SYSTEM SHALL BE ENABLED BY THE BUILDING AUTOMATION SYSTEM WHENEVER THE OUTSIDE AIR

TEMPERATURE IS ABOVE 55°F.

CHILLED WATER LOOP BYPASS CONTROL VALVES:

TO FACILITATE FUTURE REPLACEMENT OF PUMPS AND INSTALLATION OF VFD'S, 2-WAY CONTROL VALVES ARE USED

THROUGHOUT THE CHILLED WATER SYSTEM. A MODULATING BYPASS CONTROL VALVES (V-1) AND ASSOCIATED LOOP

DIFFERENTIAL PRESSURE SENSOR (DP-1) WILL BE PROVIDED UNDER THIS PROJECT TO ACCOMMODATE EXISTING CONSTANT

SPEED PUMPS. REQUIRED SETPOINT OF THE LOOP DP SENSOR TO PROVIDE DESIGN FLOW IN LOOP SHALL BE DETERMINED

DURING SYSTEM BALANCING. IF LOOP DP RISES ABOVE SETPOINT, CORRESPONDING BYPASS CONTROL VALVE SHALL

MODULATE OPEN TO MAINTAIN LOOP DP AT SETPOINT. IF DP IS AT OR BELOW SETPOINT, CORRESPONDING BYPASS CONTROL

VALVE SHALL REMAIN CLOSED.

BYPASS CONTROL VALVE (V-1) SHALL INDEX TO FULLY OPEN WHEN THE CHILLER PLANT AND ASSOCIATED PUMPS ARE SHUT

DOWN. THE CHILLED WATER PLANT SHALL ALWAYS START WITH THE BYPASS VALVE FULLY OPEN.

CHILLED WATER PUMPS:

CHWP-1 & CHWP-2 SHALL OPERATE IN A LEAD-LAG ARRANGEMENT. LEAD PUMP SHALL BE ROTATED WEEKLY THROUGH THE

BAS.

LEAD CHILLED WATER PUMP SHALL BE ENABLED AND RUN BASED ON A CALL FOR COOLING. IF THE LEAD PUMP FAILS, THE LAG

PUMP SHALL START AND AN ALARM SHALL BE SENT TO THE BAS. WHILE THE LEAD PUMP IS RUNNING, IF THE LOOP DP SENSOR

REMAINS BELOW SETPOINT FOR MORE THAN 10 CONSECUTIVE MINUTES, LAG PUMP SHALL START. WHEN BOTH PUMPS ARE

RUNNING, IF THE LOOP DP SENSOR RISES ABOVE SETPOINT FOR MORE THAN 10 CONSECUTIVE MINUTES WITH THE ASSOCIATED

BYPASS VALVE (V-1) FULLY OPEN, THE LAG PUMP SHALL STOP.

CHWP-3 SHALL OPERATE AS A STANDBY PUMP ONLY. SHOULD EITHER CHWP-1 OR CHWP-2 FAIL, CHWP-3 SHALL OPERATE AS

THE LAG PUMP.

CONDENSER WATER PUMPS:

CWP-1 & CWP-2 SHALL OPERATE IN A LEAD-LAG ARRANGEMENT. LEAD PUMP SHALL BE ROTATED WEEKLY THROUGH THE BAS.

LEAD CONDENSER WATER PUMP SHALL BE ENABLED AND RUN BASED ON A CALL FOR COOLING. IF LEAD THE PUMP FAILS, THE

LAG PUMP SHALL START AND AN ALARM SHALL BE SENT TO THE BAS. THE LEAD PUMP SHALL CONTINUE TO RUN AS LONG AS

THERE ARE ONE OR TWO MULTISTACK MODULES IN OPERATION. LAG CONDENSER WATER PUMP SHALL BE ENABLED WHEN

THIRD CHILLER MODULE COMES ON, AND SHALL RUN IN PARALLEL WITH THE LEAD PUMP WHENEVER ALL THREE MODULES OF

MULTISTACK CHILLER ARE IN OPERATION. WHEN BOTH PUMPS ARE RUNNING, IF THE THIRD MULTISTACK CHILLER MODULE

TURNS OFF, THE LAG PUMP SHALL STOP.

THE COOLING TOWER SIDESTREAM FILTRATION SYSTEM (PUMP, ETC.) SHALL RUN WHENEVER EITHER OF THE CONDENSER

WATER PUMPS RUNS. AN ALARM SHALL BE GENERATED AT THE BAS IF THE PUMP FAILS.

COOLING TOWER:

COOLING TOWER CONTROLS ARE EXISTING TO REMAIN AND SHALL BE INTEGRATED AS NECESSARY TO MAINTAIN EXISTING

FUNCTIONALITY, INCLUDING BUT NOT LIMITED TO WATER LEVEL CONTROLS (INCLUDES LOW WATER CUTOUT, LOW WATER

ALARM, MAKEUP WATER VALVE LOW LEVEL, MAKEUP WATER HIGH LEVEL, ETC.), VIBRATION CUTOUT SWITCH, BASIN HEATER

CONTROLS. LOW WATER ALARM SHALL BE INTEGRATED TO THE BUILDING AUTOMATION SYSTEM TO GENERATE AN ALARM

REMOTELY.

THE COOLING TOWER FAN SHALL BE ENABLED BASED ON A CALL FOR COOLING, AND SHALL MODULATE ITS SPEED BASED ON A

SIGNAL FROM THE BAS, TO MAINTAIN TOWER LEAVING WATER TEMPERATURE AT 85 DEG.F (ADJ.). AN ALARM SHALL BE SENT TO

THE BAS IF THE FAN FAILS. CONDENSER WATER BYPASS VALVE SHALL MODULATE TO MAINTAIN 65 DEG.F MINIMUM WATER

TEMPERATURE DOWNSTREAM OF THE BYPASS VALVE, AS SENSED BY TEMPERATURE SENSOR CWT. WHENEVER THE COOLING

TOWER IS OFF, THE 3-WAY VALVE SHALL BE FULLY OPEN TO THE BYPASS AND FULLY CLOSED TO COOLING TOWER INLET.

CHILLER:

UPON A CALL FOR COOLING, THE CHILLER SHALL BE ENABLED. THE CHILLER SHALL START ONCE THE EXISTING CHILLER FLOW

SWITCH PROVES CONDENSER AND EVAPORATOR FLOW, AND SHALL RUN TO MAINTAIN THE CHILLED WATER SUPPLY

TEMPERATURE AT SETPOINT (42°F ADJ). AN ALARM SHALL BE SENT TO THE BAS IF THE CHILLER FAILS. PROVIDE BACNET

COMMUNICATIONS CARD FOR CHILLER, AND INTEGRATE ALL AVAILABLE CHILLER POINTS TO THE BAS. COORDINATE WITH

CHILLER MANUFACTURER.

SEQUENCES OF OPERATION:

LO

W LIM

IT

A

LA

RM

HIG

H LIM

IT

A

LA

RM

MA

NU

AL C

ON

TR

OL

BA

CK

UP

C

ON

TR

OL

DIG

IT

AL A

LA

RM

MA

NU

AL R

ES

ET

ELE

CT

RO

NIC

4-20 m

A

CO

NT

AC

TO

R

EP

S

OLE

NO

ID

CO

NT

RO

L R

ELA

Y

RE

LA

TIV

E H

UM

ID

IT

Y

TE

MP

ER

AT

UR

E

PR

ES

SU

RE

CU

RR

EN

T S

WIT

CH

PR

ES

SU

RE

S

WIT

CH

CHILLED WATER RETURN TEMPERATURE

CHWS

CWS

CHWR

POINT

NAME

DESCRIPTION

OT

HE

R

CO

NT

AC

T

OT

HE

R

PU

LS

E

OT

HE

R

TO

TA

LIZ

E

OT

HE

R

CHILLED WATER INPUT/OUTPUT SUMMARY TABLE

APPLICATIONS

SOFTWAREPOINT TYPE

DIGITAL

INPUT

ANALOG

OUTPUT

ANALOG DIGITAL

FIELD

DEVICES

FEATURES

ACCESS.

TO NOTE

NO.

REFER

CHILLED WATER SUPPLY TEMPERATURE

CONDENSER WATER SUPPLY TEMPERATURE

EN-1 ENABLE/DISABLE COMMAND CHILLED WATER PUMP #1

CS-1 STATUS CHILLED WATER PUMP #1

NETWORK

INTERFACE

NT

-1

EXISTING MULTISTACK

CHILLER

CHWP-2 STARTER

DO

EN-2

EN-2 ENABLE/DISABLE COMMAND CHILLED WATER PUMP #2

CS-2 STATUS CHILLED WATER PUMP #2

DI

CS-2

FA

IL S

AF

E O

PE

N

EXISTING COOLING

TOWER

CW

SA

IC

WR

AI

CWR CONDENSER WATER RETURN TEMPERATURE

EN-7 ENABLE/DISABLE COMMAND COOLING TOWER FAN

CS-7 STATUS COOLING TOWER FAN

NETWORK INTERFACE - CHILLERNT-1

CH

WS

AI

CH

WR

AI

CWP-2 STARTER

DO

EN-5

DI

CS-5

COOLING TOWER FAN VFD

SP-7EN-7 AL-7

DI

CS-7

SP-7 SPEED COMMAND COOLING TOWER FAN VFD

AL-7 ALARM COOLING TOWER FAN VFD

EXISTING SIDESTREAM

FILTER

EN-4

DO DI

CS-4

EN-8 ENABLE/DISABLE COMMAND SIDESTREAM FILTER PUMP

CS-8 STATUS SIDESTREAM FILTER PUMP

DO AO DI

CHILLED WATER

CHILLED WATER LOOP BYPASS VALVEV-1

CHWP-1

CHWP-1 STARTER

DO

EN-1

DI

CS-1

CHWP-3 STARTER

DO

EN-3

DI

CS-3

CHWP-2

CHWP-3

CWP-1

CWP-1 STARTER

DO

EN-4

DI

CS-4

CWP-2

EN-4 ENABLE/DISABLE COMMAND CONDENSER WATER PUMP #1

EN-5 ENABLE/DISABLE COMMAND CONDENSER WATER PUMP #2

EN-3 ENABLE/DISABLE COMMAND CHILLED WATER PUMP #3 (AHU)

CS-3 STATUS CHILLED WATER PUMP #3

CS-4 STATUS CONDENSER WATER PUMP #1

CS-5 STATUS CONDENSER WATER PUMP #2

EN-6 ENABLE/DISABLE COMMAND CHILLER

CS-6 STATUS CHILLER

FANS SHALL BE INTERLOCKED WITH BUILDING OCCUPANCY THROUGH THE BUILDING AUTOMATION SYSTEM. PROVIDE A STATUS

POINT FOR BAS MONITORING AND ALARM.

A DUCT-MOUNTED PRESSURE SWITCH, LOCATED NEAR THE FAN INLET, SHALL SHUT DOWN THE FAN AND GENERATE AN ALARM AT

THE BAS IF NEGATIVE PRESSURE EXCEEDS 1.5" WC (ADJ). ALARM SHALL BE MANUALLY RESET.

EF-1 & EF-2 SEQUENCES OF OPERATION:

EF-1

EF STARTER

DO

EN

DI

CS

EF-1 & EF-2 SCHEMATIC

N.T.S.

EF-2

CO

NT

RO

L R

ELA

Y

CU

RR

EN

T S

WIT

CH

POINT

NAME

DESCRIPTION

EF INPUT/OUTPUT SUMMARY TABLE

POINT TYPE

DIGITAL

INPUT OUTPUT

DIGITAL

EN ENABLE/DISABLE COMMAND EXHAUST FAN

CS STATUS EXHAUST FAN

DI

ESPL

HI

LO

ESPL EXHAUST STATIC PRESSURE

PR

ES

SU

RE

S

WIT

CH

FROM AHU - REFER TO PIPING SCHEMATIC

FROM SOUTH FAN COIL UNITS - REFER TO PIPING SCHEMATIC

FROM NORTH FAN COIL UNITS - REFER TO PIPING SCHEMATIC

TO NORTH FAN COIL UNITS - REFER TO PIPING SCHEMATIC

TO AHU - REFER TO PIPING SCHEMATIC

TO SOUTH FAN COIL UNITS - REFER TO PIPING SCHEMATIC

AI

DP-1

DP-1 PUMP DIFFERENTIAL PRESSURE

DO

EN-6

DI

CS-6

(EXISTING)

(EXISTING)

(EXISTING)

(EXISTING)

(EXISTING)

CW

TA

I

AO

V-2

CWT CONDENSER MIXED SUPPLY WATER TEMPERATURE

CONDENSER WATER 3-WAY BYPASS VALVEV-2

TO AHU - REFER TO PIPING SCHEMATIC

FROM AHU - REFER TO PIPING SCHEMATIC

AO

V-1

T

T

T

T

T

T

T

T T

T

T

T

PLAN NOTES

sheet

checked by

drawn by

date

project number

bu

ild

in

g im

pro

ve

me

nts fo

r:

da

yto

n, o

hio

4

54

02

33

5 w

est th

ird

stre

et

city o

f d

ayto

n sa

fe

ty b

uild

in

g

revised

issued

STA

N E

ngineers

30

0 W

. M

on

um

en

t A

ve

., S

uite

2

00

Da

yto

n, O

H 4

54

02

ph

on

e: (9

37

) 4

38

-0

17

7

ww

w.sta

ne

ng

in

ee

rs.co

m

Sin

ce

1

98

1

me

ch

an

ica

l d

em

o p

la

n - g

ro

un

d flo

or

MECHANICAL DEMO PLAN - GROUND FLOOR

1

SCALE: 1/8" = 1'-0"

N