M-701 Green Brook C2H Amendment 0006 - Dec 2022.pdf

EXHAUST AIR

EMERGENCY SHUTDOWN

LOW LEAKAGE DAMPER

FCD

M

OUTSIDE AIR

ZS

DI

DO

VENTILATION GENERATOR

FCD

M

RECIRCULATION AIR

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DO

PROVIDE MOTORIZED PARALLEL-BLADE

DAMPER INTERLOCKED WITH GENERATOR.

DAMPER OPENS ON LOSS OF POWER AND

INITIATION OF GENERATOR. DAMPER

SELECTION MUST BE PROVIDED WITH

SPRING OPEN, MOTOR-CLOSED

ARRANGEMENT, AND SPRING-OPEN TIME

MUST BE RATED FOR <15 SECONDS TO

FULLY OPEN.

NO

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RETURN AIR

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OUTSIDE AIR

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VENTILATION SPACE

LOW LEAKAGE DAMPER

FCD

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EXHAUST AIR

LOW LEAKAGE DAMPER

MSMY

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DO

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1-3

EF

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DAY TANK

HIGH ALARM

HIGH LEVEL

LOW LEVEL

LOW ALARM

P-1, FUEL TRANSFER PUMP

STARTER

HOA

FUEL SUPPLY

FROM EST-1

HOA

FUEL RETURN

TO EST-1

P-2, FUEL TRANSFER PUMP

STARTER

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SUPPLY AIR

STARTER

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RM

AI

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EUH

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SHEET

IDENTIFICATION

SHEET OF 493

US Army Corps of Engineers

CONTRACT NO. 2 - AMENDMENT NO. 6 - DECEMBER 2022

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NOT TO SCALEC1

GENERATOR MAKE-UP AIR CONTROL DIAGRAM

NOT TO SCALEB1

VENTILATION CONTROL DIAGRAM

NOT TO SCALEA1

GENERATOR FUEL TANK & FUEL PUMP CONTROL DIAGRAM

SEQUENCE OF OPERATION

VENTILATION SEQUENCE OF OPERATION:

1. SPACE THERMOSTAT STARTS VENTILATION FAN AND OPENS MOTORIZED

DAMPERS ON INTAKE AND EXHAUST WHEN SPACE TEMPERATURE RISES

ABOVE 85°F (ADJUSTABLE). SPACE THERMOSTATS STOP VENTILATION FAN

AND CLOSE MOTORIZED DAMPERS WHEN SPACE TEMPERATURE DROPS 5°F

BELOW SETPOINT.

2. (BDR-2 ONLY) IN ADDITION TO THERMOSTATIC CONTROL, INTERLOCK EF-1

AND ASSOCIATED MOTORIZED DAMPERS WITH TOILET LIGHT SWITCH TO

ENABLE FAN AND OPEN DAMPER AT 100 CFM SETTING WHEN LIGHT IS ON.

UNIT HEATER SEQUENCE OF OPERATION:

1. UNIT HEATERS ARE REDUNDANT IN EACH SPACE TO ACHIEVE N+1

CONFIGURATION (LEAD AND LAG CONFIGURATION).

2. CONTROL THE OPERATION OF THE PRIMARY (LEAD) UNIT HEATER WITH A

MANUFACTURER PROVIDED PROGRAMMABLE THERMOSTAT THAT STARTS

THE UNIT HEATER WHEN SPACE TEMPERATURE REACHES SET POINT OF 55°

F (ADJUSTABLE). UNIT HEATER STOPS WHEN SPACE TEMPERATURE RISES

5°F ABOVE SETPOINT.

3. CONTROL THE OPERATION OF THE SECONDARY (LAG) UNIT HEATER WITH A

MANUFACTURER PROVIDED PROGRAMMABLE THERMOSTAT THAT STARTS

THE UNIT HEATER WHEN THE SPACE TEMPERATURE REACHES SET POINT

OF 52°F (ADJUSTABLE, MAINTAIN MINIMUM 3 DEGREE LOWER DIFFERENCE

FROM LEAD UNIT). UNIT HEATER STOPS WHEN SPACE TEMPERATURE RISES

5°F ABOVE SETPOINT.

GENERATOR MAKE-UP AIR SEQUENCE OF OPERATION:

1. SIGNAL FROM GENERATOR TRANSFER SWITCH ACTIVATION INDEXES INTAKE

AND EXHAUST AIR DAMPERS TO OPEN POSITION ON START-UP OF

GENERATOR. DAMPER MOUNTED POSITION SWITCHES CONFIRM DAMPER

HAS OPENED PRIOR TO GENERATOR START. MOTORIZED DAMPERS CLOSE

WHEN THE GENERATOR SHUTS DOWN. DAMPERS SPRING-OPEN UPON LOSS

OF POWER.

2. UPON RECEIVING ACTIVATION SIGNAL FROM GENERATOR STARTUP,

MOTORIZED LOW-LEAKAGE DAMPERS TO EF-3 CLOSE. EF-3 DOES NOT

OPERATE WHEN GENERATOR IS ON.

3. GENERATOR EXHAUST RECIRCULATION AIR DAMPER REMAINS NORMALLY

OPEN AND CLOSES AS NEEDED TO MAINTAIN A GENERATOR ROOM AIR

TEMPERATURE OF 55°F.

GENERATOR FUEL TANK & FUEL PUMPS (P-1 & P-2) SEQUENCE OF OPERATION:

1. WHEN "HAND-OFF-AUTOMATIC" SWITCH IS IN "HAND" POSITION, THE PUMPS

RUN. WHEN SWITCH IS IN THE "AUTO" POSITION, PUMPS ARE CONTROLLED

BY THE CONTROL SYSTEM. WHEN SWITCH IS IN THE "OFF" POSITION, THE

PUMPS ARE SHUT DOWN.

2. WHEN THE DAY TANK FUEL LEVEL FALLS BELOW THE LOW LEVEL SENSOR,

THE PUMP P-1 RUNS TO TRANSFER FUEL INTO THE DAY TANK FROM THE

EXTERIOR STORAGE TANK.

3. WHEN THE DAY TANK FUEL LEVEL RISES ABOVE THE HIGH LEVEL SENSOR,

PUMPS P-1 AND P-2 SHUT DOWN.

4. WHEN THE DAY TANK FUEL LEVEL FALLS BELOW THE LOW ALARM SENSOR,

THE PUMP P-1 RUNS AND AN ALARM SIGNAL IS TRANSMITTED THROUGH THE

PLC-BASED CONTROL SYSTEM.

5. WHEN THE DAY TANK FUEL LEVEL RISES ABOVE THE HIGH LEVEL ALARM

SENSOR, THE PUMP P-1 SHUTS DOWN AND SIGNALS AN ALARM THROUGH

THE PLC-BASED CONTROL SYSTEM. PUMP P-2 RUNS TO TRANSFER

EXCESSIVE FUEL FROM THE DAY TANK TO THE EXTERIOR STORAGE TANK.

6. WHEN FUEL IS DETECTED BY EITHER THE FUEL SENSOR OR THE FUEL PUMP

SET LEAK SENSOR SIGNALS AN ALARM THROUGH THE PLC-BASED CONTROL

SYSTEM.

7. ALARM IS MANUALLY RESET AT THE RESET PB STATION.

NOT TO SCALEA3

UNIT HEATER CONTROL DIAGRAM

GENERAL NOTES

1. CONNECT CONTROL SYSTEMS FOR THE GENERATOR DAMPER CONTROLS TO

THE DIVISION 26 PROVIDED UPS CIRCUITS.

2. REFER TO M-001 FOR GENERAL NOTES, SYMBOLS AND ABBREVIATIONS.

NOTE: CONTRACTOR SHALL PROVIDE ALL CONTROLS AND NECESSARY EQUIPMENT FOR THE TRANSFER PUMPS (P-1 & P-2), SUBBASE TANK, AND ABOVE GROUND FUEL TANK FOR THE EQUIPMENT TO FUNCTION

PROPERLY.

WORK ON THIS

SHEET IS IN THE

OPTION 2 CONTRACT

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