REVISED DRAWING ME 502 dated 2021_10_26.pdf
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- Solicitation number
- 36C24221B0072
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This document package includes a federal solicitation for the renovation of a fire department at the Montrose Veterans Affairs Medical Center in New York, along with supporting technical specifications.
The solicitation seeks bids for the renovation of the fire department located in Building 19, including the provision of all labor, materials, tools, equipment and supervision. Key details include a 300-day period of performance, a pre-bid site visit scheduled for October 14, 2021, and a bid opening via teleconference on November 3, 2021. Bids are due by email only to the contracting officer. The estimated value is between $500,000 and $1 million, and the procurement is set aside for service-disabled veteran-owned small businesses. The technical specifications outline the project scope and mechanical, electrical and controls requirements for the renovation and integration with existing building management systems.
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19-AHU-01 - SEQUENCE OF OPERATION
1. GENERAL
a. 19-AHU-01 CONTROLLER SHALL OPERATE WITH BACNET CONTROLS . AHU CONTROLLER
SHALL BE MOUNTED ON THE WALL IN THE SAME ROOM WHERE THE AHU IS LOCATED.
COORDINATE THIS LOCATION WITH THE VA COR. AHU CONTROLLER SHALL BE CONNECTED
TO A SUPERVISORY BUILDING CONTROLLER LOCATED IN THE TELECOMMUNICATIONS ROOM.
AHU UNIT SHALL BE STARTED AND STOPPED BY THE DIRECT DIGITAL CONTROL PANEL (DCP)
ON THE AHU CONTROLLER .
b. CONTRACTOR SHALL SUBMIT SHOP DRAWINGS OF COMPLETE HVAC CONTROLS SYSTEM TO
VA COR FOR APPROVAL.
c. INTERLOCK THE AIR HANDLING UNIT SYSTEM WITH THE EXISTING FIRE ALARM SYSTEM.
d. ALL DIRECT DIGITAL CONTROL PANELS (DCP) SHALL BE FED FROM AN EMERGENCY POWER
CIRCUIT.
2. RUN CONDITION
a. COOLING MODE: IF SPACE TEMPERATURE IS ABOVE THE COOLING SETPOINT, ENTER
COOLING MODE UNTIL TEMPERATURE FALLS BELOW SETPOINT MINUS A 2°F DEADBAND.
b. HEATING MODE: IF SPACE TEMPERATURE IS BELOW THE HEATING SETPOINT, ENTER
HEATING MODE UNTIL TEMPERATURE RISES ABOVE SETPOINT PLUS A 2°F DEADBAND.
3. AIR FLOW CONTROL
a. THE SUPPLY AIR FLOW SHALL BE CONTROLLED BY THE DCP AND MODULATE THE SUPPLY
FAN VARIABLE FREQUENCY DRIVE (VFD) SPEED TO MAINTAIN A SPACE TEMPERATURE
SETPOINT, AS MEASURED BY FREQUENCY DRIVE (VFD) SPEED TO MAINTAIN A SPACE
TEMPERATURE SETPOINT, AS MEASURED BY FREQUENCY DRIVE (VFD) SPEED TO MAINTAIN
A SPACE TEMPERATURE SETPOINT, AS MEASURED BY TEMPERATURE SENSORS LOCATED IN
THE SPACE. WHEN MULTIPLE SENSORS ARE INDICATED, POLL ALL SENSORS AND CONTROL
TO THE MOST DEMANDING READING.
4. TEMPERATURE CONTROL
a. SUPPLY AIR TEMPERATURE, SENSED BY TT-1, SHALL BE MAINTAINED AT SETPOINT (55 DEG
F.) VIA DIGITAL CONTROL PANEL WHILE MINIMIZING THE FAN SPEED.
b. A FIXED VOLUME OF OUTSIDE AIR FLOW SHALL BE MAINTAINED AT 20% (600 CFM) AT ALL
TIMES.
5. SMOKE CONTROL AUTOMATIC SHUTDOWN/RESTART
a. WHEN SMOKE IS DETECTED BY ANY ASSOCIATED DUCT MOUNTED SMOKE DETECTOR, THE
SUPPLY FAN AND INTERLOCKED RETURN/EXHAUST FAN(S) SHALL SHUT "OFF", AN ALARM
SIGNAL SHALL BE TRANSMITTED TO THE FIRE ALARM SYSTEM.
b. SUPPLY FAN(S) SHALL AUTOMATICALLY RESTART WHEN FIRE ALARM CIRCUIT IS RESET.
6. EMERGENCY CONSTANT SPEED OPERATION
a. UPON FAILURE OF SUPPLY FAN VFD(S), THE SUPPLY FAN(S) SHALL BE STARTED/STOPPED
MANUALLY AT THE DCP AND ECC THROUGH A BY-PASS STARTER. ACTIVATION OF
CONSTANT SPEED OPERATION SHALL CAUSE THE SUPPLY FAN(S) TO OPERATE AT
CONSTANT SPEED.
7. SAFETIES
a. HIGH PRESSURE LIMIT: THE DCP, USING HIGH PRESSURE LIMIT SWITCH PSH-1 LOCATED AT
THE SUPPLY FAN DISCHARGE, SHALL PREVENT THE SUPPLY FAN(S) FROM DEVELOPING
OVER 4 IN. W.G. OF POSITIVE STATIC PRESSURE (FIELD ADJUSTABLE). IF STATIC PRESSURE
AT PSH-1 DOES EXCEED 4 IN. W.G., THE SWITCH WILL OVERRIDE ALL CONTROLS AND SHUT
DOWN THE SUPPLY FAN(S), AND A "HIGH PRESSURE" ALARM SIGNAL SHALL BE INDICATED AT
THE DCP AND ECC. PSH-1 SHALL BE HARDWIRED TO THE SUPPLY FAN VFD(S) AND UNIT
SHALL BE SHUTDOWN IN HAND, AUTO, OR BYPASS MODE. PSH-1 WILL REQUIRE MANUAL
RESET AT THE DEVICE.
b. FILTER STATUS: THE DCP SHALL MONITOR AND INDICATE THE DIFFERENTIAL PRESSURE
ACROSS EACH AIR HANDLING UNIT FILTER SECTION. PROGRAM A HIGH LIMIT SETPOINT FOR
EACH FILTER SECTION IN ACCORDANCE WITH FILTER MANUFACTURER’S RECOMMENDATION.
IF THE DIFFERENTIAL PRESSURE ACROSS A FILTER SECTION IS GREATER THAN THE HIGH
LIMIT SETPOINT, THE DCP AND ECC SHALL REPORT A FILTER MAINTENANCE ALARM WITH
MESSAGE INDICATING THAT THE FILTER NEEDS TO BE CHANGED.
POINTS LIST: 19-AHU-01
POINT
TAG POINT DESCRIPTION UNITS
POINT TYPE SETPOINTS
ALARM CONDITION NOTESBINARY ANALOG
VIRTUAL ADJ. INITIAL HIGH LOW
IN OUT IN OUT
OCCUPIED MODE STATUS ON/OFF
UNOCCUPIED MODE STATUS ON/OFF
HUMIDIFICATION MODE STATUS ON/OFF
DEHUMIDIFICATION MODE STATUS ON/OFF
SUPPLY FAN START/STOP ON/OFF X
C-1 SUPPLY FAN STATUS ON/OFF X SUPPLY FAN PROOF
FAILED
SUPPLY FAN SPEED COMMAND % X
SUPPLY FAN MINIMUM SPEED SETPOINT % X X 50
SUPPLY FAN VFD ALARM ON/OFF X
PSH-1 SUPPLY DUCT PRESSURE SWITCH HIGH LIMIT SAFETY NORMAL/ALARM X X 5.0 ALARM
DD-1 SUPPLY AIR DUCT SMOKE DETECTOR NORMAL/ALARM X ALARM
FT-1 SUPPLY AIR FLOW CFM X
SUPPLY AIR FLOW SETPOINT CFM X
SPS-1 SUPPLY AIR STATIC PRESSURE IN. W.G. X
MORE THAN 20%
ABOVE OR BELOW
SETPOINT
SUPPLY AIR STATIC PRESSURE SETPOINT IN. W.G. X X 2.0 2.5 1.0
TT-1 SUPPLY AIR TEMPERATURE DEG. F X
MORE THAN 10 DEG F
ABOVE OR BELOW
SETPOINT
AVERAGING
SUPPLY AIR TEMPERATURE SETPOINT DEG. F X X 55 60 49
DD-2 SUPPLY AIR DUCT SMOKE DETECTOR NORMAL/ALARM X ALARM
FT-3 RETURN AIR FLOW CFM X
RETURN AIR FLOW SETPOINT CFM X
TT-4 RETURN AIR TEMPERATURE DEG. F X
D-2 RETURN AIR DAMPER COMMAND % OPEN X N.O.
ZC-2 RETURN AIR DAMPER POSITION % OPEN X
FT-2 OUTSIDE AIR FLOW CFM X OA FLOW LESS THAN
80% OF SETPOINT
OUTSIDE AIR FLOW SETPOINT CFM X X X PER SCHEDULE
TT-2 OUTSIDE AIR TEMPERATURE DEG. F X
PDS-1 PRE-FILTER 1 DIFFERENTIAL PRESSURE IN. W.G. X
PDS-2 PRE-FILTER 2 DIFFERENTIAL PRESSURE IN. W.G. X
TT-5 MIXED AIR TEMPERATURE DEG. F X AVERAGING
TT-6 COOLING COIL LEAVING AIR TEMPERATURE DEG. F X
MORE THAN 10 DEG F
ABOVE OR BELOW
SETPOINT
AVERAGING
HCV-1 PREHEAT STEAM CONTROL VALVE COMMAND % OPEN X N.O.
Drawing Title
Approved: Facility Director , VAHVHCS:
Project Title
Date
Location
Checked
Building(s) Number
Project Number
Drawing Number
Drawn
CONSULTANTS: ARCHITECT/ENGINEERS: NORTH:
Revisions: Date:
Approved: John Cliffe, Facility Chief of Engineering
Firehouse Enhancement at FDR
APPROVED:
APPROVED:
APPROVED:
Dwg 35 of 61
ME 502
AMI
Montrose, New York
08-30-2021
620-20-206
APPROVED:
APPROVED:
APPROVED:
APPROVED:
APPROVED:
LS
New Mechanical HVAC Controls Information Scale: As Noted
BID DOCUMENT REVISION #1 10/26/2021
HVAC CONTROL GENERAL NOTES
1. ALL VAV CONTROLLERS AND THE AHU CONTROLLER SHALL BE
CONNECTED TO A SUPERVISORY BUILDING CONTROLLER LOCATED IN THE
NEW TELECOMMUNICATIONS CLOSET 16A. THE BUILDING CONTROLLER
SHALL BE CONNECTED BY THE CONTRACTOR TO AN EXISTING NETWORK
SWITCH LOCATED IN THE NEW TELECOMMUNICATIONS CLOSET 16A VIA
ETHERNET CABLE.
2. CONTRACTOR SHALL PROVIDE A COMPLETE AND WORKING DIRECT
DIGITAL CONTROL SYSTEM. CONTRACTOR SHALL PROVIDE ALL
ENGINEERING, PROGRAMMING, CONTROLS AND INSTALLATION MANUALS,
INSTALLATION LABOR, COMMISSIONING AND START-UP, TRAINING, FINAL
PROJECT DOCUMENTATION, AND WARRANTY.
3. THE CONTRACTOR SHALL CONNECT THE NEW DDC SYSTEM TO THE EXISTING
BMS SYSTEM AND ENSURE THAT IT IS INTEGRATED FULLY WITH THAT SYSTEM.
THE EXISTING BMS SERVER WILL BE THE MAIN CONTRROL POINT AND INTERFACE
FOR THE INSTALLED SYSTEM.
4. THIS FACILITY'S EXISTING DIRECT-DIGITAL CONTROL (DDC) SYSTEM IS
MANUFACTURED BY VYKON (NIAGARA 4) AND ITS ECC IS LOCATEDAT CASTLE
POINT VAMC.
5. SEE SECTION 23 90 23 DIRECT DIGITAL CONTROLS IN THE SPECIFICATIONS
FOR MORE INFORMATION.
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