MH601 Drawing Rev 2.pdf

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Z1DA--Bid Build Variable Air Volume Assembly (Air Terminal Units) Replacement
Solicitation number
36C24822R0002
Issued by

About this file

This document includes a federal contract opportunity notice and related project drawings for replacement of variable air volume terminal units at the West Palm Beach Veterans Affairs Medical Center. The Department of Veterans Affairs Network Contracting Office is soliciting bids to replace approximately 1,184 variable air volume boxes in the main hospital and 119 variable air volume boxes in the community living center. Bids are due by December 2, 2021. The project drawings provide details on the existing building automation control system, proposed control system configuration including network architecture, point information to be displayed on operator graphics, and sequence of operation for different terminal unit types. The contract is set aside for service-disabled veteran-owned small businesses, with an anticipated award value between $10-20 million.

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Other files

File Type Posted
Award Notice 36C24822C0036.docx DOCX document
36C24822R0002 0006.docx DOCX document
36C24822R0002 0005.docx DOCX document
Combined Specifications 548-16-612 12152021.pdf PDF
548-16-612 VA West Palm Beach Replace VAV Drawings 12152021.pdf PDF
36C24822R0002 0004.docx DOCX document
Brand Name JOFOC VAV Box Replacement Project execute_Redacted.pdf PDF
36C24822R0002 0003.docx DOCX document
36C24822R0002 0002.docx DOCX document
23 09 23 Direct Digital Control System For HVAC.pdf PDF
Site VIsit 36C24822R0002 Sign In_Redacted.pdf PDF
36C24822R0002 0001.docx DOCX document
Attachment M Requirement Specifications.pdf PDF
Attachment A General Decision Number FL20210220 10012021.pdf PDF
Attachment D Pre-Award Contractor Safety and Environmental Record Form.pdf PDF
Attachment Q Sample HVAC Equipment Schedule.pdf PDF
Attachment L Requirement Drawings.pdf PDF
36C24822R0002_1 11092021.pdf PDF
Attachment H Project Price Breakdown.xlsx XLSX spreadsheet
Attachment E Above Ceiling Permit 11-10-17.pdf PDF
Attachment K PAST PERFORMANCE QUESTIONNAIRE.pdf PDF
Attachment J Experience Information Sheet.docx DOCX document
Attachment C Hot Work Permit.pdf PDF
Attachment B West Palm Beach VAMC Campus Map.pdf PDF
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Text version

AI

R

F

LO

W (C

FM

ROOM TEMPERATURE (°F)

CAV

CFM

SETPOINT

REHEAT FLOW

ROOM THERMOSTAT/SENSOR,

WALL MOUNTED

HHWS

HHWR

V-1

REHEAT

COIL

AIR TERMINAL UNIT

T

ATU

CONTROLLERASC

TE

AI

R

F

LO

W (C

FM

ROOM TEMPERATURE (°F)

HEATING

MINIMUM

SETPOINT

AIR TERMINAL UNIT TYPE "VAV" - SEQUENCE OF OPERATION

100%

VA

V

AI

R

FL

OWREHEAT FLOW

A.

B.

C.

D.

PROVIDE SPACE TEMPERATURE SETPOINTS ACCORDING TO INDOOR

AREA SETPOINTS FROM HVAC DESIGN DATA SCHEDULE ON SHEET

MH001. EXAMPLE OF SETPOINTS SHALL BE SET AS FOLLOWS:

SPACE COOLING SETPOINT: 75°F (ADJUSTABLE)

SPACE HEATING SETPOINT: 70°F(ADJUSTABLE)

DEADBAND OF 5° F BETWEEN HEATING AND

COOLING SETPOINTS WILL BE MAINTAINED.

DURING OCCUPIED MODE OF OPERATION, MODULATE THE AIR

CONTROL DAMPER BETWEEN MINIMUM AND MAXIMUM AIR FLOW

SETPOINTS AS NECESSARY TO MAINTAIN SPACE COOLING SETPOINT.

IF THE SPACE TEMPERATURE FALLS BELOW SPACE COOLING

SETPOINT, MODULATE THE AIR CONTROL DAMPER TO REDUCE AIR

FLOW TO MINIMUM AIR FLOW SETPOINT. UPON FURTHER DROP IN

SPACE TEMPERATURE BELOW THE SPACE HEATING SETPOINT,

MODULATE THE HEATING CONTROL VALVE AS NECESSARY TO

MAINTAIN SPACE HEATING SETPOINT. IF SPACE TEMPERATURE

CONTINUES TO DROP, MODULATE THE AIR CONTROL DAMPER

BETWEEN MINIMUM AIR FLOW SETPOINT AND MAXIMUM HEATING AIR

FLOW TO MAINTAIN SPACE HEATING SETPOINT. ON A RISE IN SPACE

TEMPERATURE, THE REVERSE SHALL OCCUR.

DURING UNOCCUPIED HOURS, MAINTAIN UNOCCUPIED SPACE

TEMPERATURE SETPOINTS. THE TERMINAL UNITS WILL HAVE THE

SAME SEQUENCE OF OPERATION AS OCCUPIED MODE EXCEPT THE

SPACE COOLING SETPOINT WILL BE HIGHER AND THE SPACE

HEATING SETPOINT WILL BE LOWER.

UPON ACTIVATION OF EMERGENCY CONSTANT SPEED OPERATION

FOR THE ASSOCIATED AIR HANDLING UNIT, MODULATE AIR CONTROL

DAMPER TO MAINTAIN MAXIMUM AIR FLOW SETPOINT.

TYPE "CAV" AIR TERMINAL UNIT CONTROLS

NTS3

TYPE "VAV" & TYPE "VAV-HD" AIR TERMINAL UNIT CONTROLS

NTS2

NOTES:

• EACH TERMINAL UNIT SHALL BE CONTROLLED BY A DEDICATED, UNIT

MOUNTED, STANDALONE CONTROLLER. THE CONTROLLER SHALL

MONITOR AND CONTROL EACH UNIT IN STAND-ALONE MODE OR AS

DIRECTED BY BUILDING AUTOMATION SYSTEM.

• ALL AIR TERMINAL UNITS SHALL BE PRESSURE INDEPENDENT TYPE

WITH VELOCITY RESET CONTROLLERS. ALL TERMINAL UNITS SHALL

BE CAPABLE OF VARIABLE VOLUME ALTHOUGH SOME WILL ACT AS

CONSTANT VOLUME.

• COORDINATE SETPOINTS AND PERFORMANCE WITH TEST AND

BALANCE CONTRACTOR.

• SPACE TEMPERATURE SETPOINTS SHALL BE ADJUSTABLE FROM THE

ECC FRONT END INTERFACE.

• COORDINATE AND ADJUST OCCUPANCY SCHEDULES AND

UNOCCUPIED TEMPERATURES WITH THE COR.

BACNET SYSTEM ARCHITECTURE

NTS1

AIR FLOW

SENSOR

AIR CONTROL

DAMPER

FE

AIR

FLOW

DISCHARGE AIR

TEMPERATURE

SENSOR

CONTROL VALVE

ROOM THERMOSTAT/SENSOR,

WALL MOUNTED

HHWS

HHWR

V-1

REHEAT

COIL

AIR TERMINAL UNIT

T

ATU

CONTROLLER

ASC

TE

AIR FLOW

SENSOR

AIR CONTROL

DAMPER

FE

AIR

FLOW

DISCHARGE AIR

TEMPERATURE

SENSOR

CONTROL VALVE

AIR TERMINAL UNIT TYPE "CAV" - SEQUENCE OF OPERATION

A.

B.

C.

D.

PROVIDE SPACE TEMPERATURE SETPOINTS ACCORDING TO INDOOR

AREA SETPOINTS FROM HVAC DESIGN DATA SCHEDULE ON SHEET

MH001. EXAMPLE OF SETPOINTS SHALL BE SET AS FOLLOWS:

SPACE COOLING SETPOINT: 75°F (ADJUSTABLE)

SPACE HEATING SETPOINT: 70°F(ADJUSTABLE)

DEADBAND OF 5° F BETWEEN HEATING AND

COOLING SETPOINTS WILL BE MAINTAINED.

DURING OCCUPIED MODE OF OPERATION, MODULATE THE AIR

CONTROL DAMPER AS NECESSARY TO MAINTAIN MAXIMUM AIR

FLOW SETPOINT. IF THE SPACE TEMPERATURE FALLS BELOW

SPACE HEATING SETPOINT, MODULATE THE HEATING CONTROL

VALVE AS NECESSSARY TO MAINTAIN SPACE HEATING SETPOINT.

ON A RISE IN SPACE TEMPERATURE, THE REVERSE SHALL OCCUR.

DURING UNOCCUPIED HOURS, MODULATE AIR CONTROL DAMPER

AS NECESSARY TO MAINTAIN MINIMUM AIR FLOW SETPOINT. IF

SPACE TEMPERATURE FALLS BELOW UNOCCUPIED SPACE

HEATING SETPOINT, MODULATE THE HEATING CONTROL VALVE AS

NECESSARY TO MAINTAIN UNOCCUPIED SPACE HEATING

SETPOINT. ON A RISE IN SPACE TEMPERATURE, THE REVERSE

SHALL OCCUR.

UPON ACTIVATION OF EMERGENCY CONSTANT SPEED OPERATION

FOR THE ASSOCIATED AIR HANDLING UNIT, MODULATE AIR

CONTROL DAMPER TO MAINTAIN MAXIMUM AIR FLOW SETPOINT.

TYPE "EA - CAV" AIR TERMINAL UNIT CONTROLS - ISOLATION ROOMS

NTS4

EXHAUST AIR

TERMINAL UNIT

ATU

CONTROLLER

ASC

AIR FLOW

SENSOR

AIR VALVE

ACTUATOR FE

EXHAUST

AIR FLOW

AIR TERMINAL UNIT TYPE "EA - CAV" - SEQUENCE OF OPERATION

A.

B.

C.

D.

FOR NEGATIVE PRESSURE ISOLATION ROOMS:

DURING NORMAL OPERATION, MODULATE THE AIR VALVE ACTUATOR AS

NECESSARY TO MAINTAIN MAXIMUM AIR FLOW SETPOINT AND

REQUIRED DIFFERENTIAL AIR PRESSURE FOR NEGATIVE PRESSURE

WITHIN THE ISOLATION ROOM.

FOR POSITIVE PRESSURE REVERSE ISOLATION ROOMS:

MODULATE THE AIR VALVE ACTUATOR AS NECESSARY TO MAINTAIN

MINIMUM AIR FLOW SETPOINT AND REQUIRED DIFFERENTIAL AIR

PRESSURE FOR POSITIVE PRESSURE WITHIN THE ISOLATION ROOM.

COORDINATE PROGRAMMING OF POSITIVE OR NEGATIVE PRESSURE

FOR EACH ISOLATION ROOM WITH THE COR.

PROVIDE EACH ROOM WITH STATUS DISPLAY PANEL TO INDICATE

ROOM STATUS OF NEGATIVE OR POSITIVE PRESSURE.

TO ECC

THE BACNET ARCHITECTURE SHOWN IS A DIAGRAMMATIC REPRESENTATION AND IS

INTENDED AS A REFERENCE. IT IS NOT MEANT TO BE THE EXACT ARCHITECTURE FOR THIS

PROJECT. CONTROLS CONTRACTOR TO COORDINATE WITH EXISTING CONTROLS AND

DETERMINE THE EXACT ARCHITECTURE FOR THE SYSTEM BEING PROVIDED AND SHALL

INCLUDE IN THE SUBMITTALS.

AIR TERMINAL UNIT TYPE "VAV-HD" - SEQUENCE OF OPERATION

A.

B.

C.

TYPE "VAV-HD" SEQUENCE TO BE SIMILAR TO TYPE "VAV" SEQUENCE,

WITH THE FOLLOWING ADDITION:

INTERLOCK AIR TERMINAL UNIT WITH EXISTING FUME HOOD AND

EXHAUST FAN SERVING SPACE.

UPON ACTIVATION OF FUME HOOD EXHAUST FAN, MODULATE THE AIR

CONTROL DAMPER AS NECESSSARY TO MAINTAIN THE MAXIMUM AIR

FLOW SETPOINT. MODULATE THE HEATING CONTROL VALVE AS

NECESSARY TO MAINTAIN SPACE TEMPERATURE SETPOINTS.

NOTES:

1.

2.

3.

4.

5.

NOTES:

• EACH TERMINAL UNIT SHALL BE CONTROLLED BY A DEDICATED, UNIT

MOUNTED, STANDALONE CONTROLLER. THE CONTROLLER SHALL

MONITOR AND CONTROL EACH UNIT IN STAND-ALONE MODE OR AS

DIRECTED BY BUILDING AUTOMATION SYSTEM.

• ALL AIR TERMINAL UNITS SHALL BE PRESSURE INDEPENDENT TYPE

WITH VELOCITY RESET CONTROLLERS. ALL TERMINAL UNITS SHALL

BE CAPABLE OF VARIABLE VOLUME ALTHOUGH SOME WILL ACT AS

CONSTANT VOLUME.

• COORDINATE SETPOINTS AND PERFORMANCE WITH TEST AND

BALANCE CONTRACTOR.

• SPACE TEMPERATURE SETPOINTS SHALL BE ADJUSTABLE FROM THE

ECC FRONT END INTERFACE.

• COORDINATE AND ADJUST OCCUPANCY SCHEDULES AND

UNOCCUPIED TEMPERATURES WITH THE COR.

NOTES:

1.

2.

3.

4.

5.

SPACE PRESSURE CONTROLLER

AND WALL-MOUNT DISPLAY

PC

TO

SUPPLY AIR

TERMINAL UNIT

AI

R

F

LO

W (C

FM

ROOM TEMPERATURE (°F)

CAV

CFM

SETPOINT

REHEAT FLOW

TYPE "CAV-OR" AIR TERMINAL UNIT CONTROLS

NTS5

SPACE THERMOSTAT/SENSOR,

WALL MOUNTED

HHWS

HHWR

V-1

REHEAT

COIL

SUPPLY AIR

TERMINAL UNIT

T

SUPPLY ATU

CONTROLLER

ASC

TE

AIR FLOW

SENSOR

AIR CONTROL

DAMPER

FE

AIR

FLOW

DISCHARGE AIR

TEMP. SENSOR

CONTROL VALVE

AIR TERMINAL UNIT TYPE "CAV-OR" - SEQUENCE OF OPERATION

A.

B.

C.

D.

E.

PROVIDE SPACE TEMPERATURE SETPOINTS ACCORDING TO INDOOR

AREA SETPOINTS FROM HVAC DESIGN DATA SCHEDULE ON SHEET

MH001. EXAMPLE OF SETPOINTS SHALL BE SET AS FOLLOWS:

SPACE COOLING SETPOINT: 75°F (ADJUSTABLE)

SPACE HEATING SETPOINT: 70°F(ADJUSTABLE)

DEADBAND OF 5° F BETWEEN HEATING AND

COOLING SETPOINTS WILL BE MAINTAINED.

DURING OCCUPIED MODE OF OPERATION, MODULATE THE SUPPLY ATU

AIR CONTROL DAMPER AS NECESSARY TO MAINTAIN MAXIMUM AIR FLOW

SETPOINT. IF THE SPACE TEMPERATURE FALLS BELOW SPACE

HEATING SETPOINT, MODULATE THE HEATING CONTROL VALVE AS

NECESSSARY TO MAINTAIN SPACE HEATING SETPOINT. ON A RISE IN

SPACE TEMPERATURE, THE REVERSE SHALL OCCUR.

DURING UNOCCUPIED HOURS, MODULATE SUPPLY ATU AIR CONTROL

DAMPER AS NECESSARY TO MAINTAIN MINIMUM AIR FLOW SETPOINT. IF

SPACE TEMPERATURE FALLS BELOW UNOCCUPIED SPACE HEATING

SETPOINT, MODULATE THE HEATING CONTROL VALVE AS NECESSARY

TO MAINTAIN UNOCCUPIED SPACE HEATING SETPOINT. ON A RISE IN

SPACE TEMPERATURE, THE REVERSE SHALL OCCUR.

UPON ACTIVATION OF EMERGENCY CONSTANT SPEED OPERATION FOR

THE ASSOCIATED AIR HANDLING UNIT, MODULATE AIR CONTROL

DAMPER TO MAINTAIN MAXIMUM AIR FLOW SETPOINT.

MODULATE THE EXHAUST ATU AIR VALVE ACTUATOR AS NECESSARY TO

MAINTAIN A CONSTANT SPACE AIR FLOW OFFSET BETWEEN SUPPLY

AND EXHAUST AIR FLOWS.

NOTES:

• EACH TERMINAL UNIT SHALL BE CONTROLLED BY A DEDICATED, UNIT

MOUNTED, STANDALONE CONTROLLER. THE CONTROLLER SHALL

MONITOR AND CONTROL EACH UNIT IN STAND-ALONE MODE OR AS

DIRECTED BY BUILDING AUTOMATION SYSTEM.

• ALL AIR TERMINAL UNITS SHALL BE PRESSURE INDEPENDENT TYPE

WITH VELOCITY RESET CONTROLLERS. ALL TERMINAL UNITS SHALL

BE CAPABLE OF VARIABLE VOLUME ALTHOUGH SOME WILL ACT AS

CONSTANT VOLUME.

• COORDINATE SETPOINTS AND PERFORMANCE WITH TEST AND

BALANCE CONTRACTOR.

• SPACE TEMPERATURE SETPOINTS SHALL BE ADJUSTABLE FROM THE

ECC FRONT END INTERFACE.

• COORDINATE AND ADJUST OCCUPANCY SCHEDULES AND

UNOCCUPIED TEMPERATURES WITH THE COR.

NOTES:

1.

2.

3.

4.

5.

EXHAUST AIR

TERMINAL UNIT

EXHAUST ATU

CONTROLLER

ASC

AIR FLOW

SENSOR

AIR VALVE

ACTUATOR

FE

TO ECC

SPACE PRESSURE CONTROLLER

AND WALL-MOUNT DISPLAY

PC

EXHAUST

AIR FLOW

ISOLATION ROOM NOTES:

A.

B.

FOR NEGATIVE PRESSURE ISOLATION ROOMS:

MAINTAIN NEGATIVE AIR PRESSURE (0.01 INCH W.G.) BETWEEN THE

ISOLATION ROOM AND ANTEROOM AND THE ANTEROOM AND

CORRIDOR BY MODULATING THE EXHAUST ATU AIR VALVE ACTUATOR

AS NECESSARY. ISOLATION ROOM SHALL HAVE A PERMANENTLY

INSTALLED DEVICE AND/OR MECHANISM TO CONSTANTLY MONITOR

THE DIFFERENTIAL AIR PRESSURE BETWEEN THE PATIENT ROOM

AND THE CORRIDOR. A LOCAL VISUAL MEANS SHALL BE PROVIDED TO

INDICATE WHENEVER NEGATIVE DIFFERENTIAL PRESSURE IS NOT

MAINTAINED.

FOR POSITIVE PRESSURE REVERSE ISOLATION ROOMS:

MAINTAIN POSITIVE AIR PRESSURE (0.01 INCH W.G.) BETWEEN THE

POSITIVE ISOLATION ROOM AND THE ANTEROOM AND THE

ANTEROOM AND CORRIDOR BY MODULATING THE EXHAUST ATU AIR

VALVE ACTUATOR AS NECESSARY. ISOLATION ROOM SHALL HAVE A

PERMANENTLY INSTALLED DEVICE AND/OR MECHANISM TO

CONSTANTLY MONITOR THE DIFFERENTIAL AIR PRESSURE BETWEEN

THE PATIENT ROOM AND THE CORRIDOR. A LOCAL VISUAL MEANS

SHALL BE PROVIDED TO INDICATE WHENEVER POSITIVE

DIFFERENTIAL PRESSURE IS NOT MAINTAINED.

TC

VOLUMETRIC AIR

FLOW OFFSET

TRACKING CONTROLLER

Drawing Title

Approved: Project Director

Project Title

Date

Location

Checked

Building Number

Project Number

Drawing Number

Drawn

Dwg. of

CONSULTANTS: ARCHITECT/ENGINEERS:

group mes

Office of Construction and Facilities Management on e ei gh th in ch o ne fo ot

B

A

C

D

E

F th re e in ch es o ne fo ot 6"

6" on e an d on e ha lf in ch es o ne fo ot on e in ch o ne fo ot

6" 6" th re e qu ar te rs in ch o ne fo ot on e ha lf in ch o ne fo ot th re e ei gh th s in ch o ne fo ot on e qu ar te r i nc h on e fo ot

VA FORM 08-6231

1 2 3 4 5 6 87 9

F

E

D

C

B

A

97 8654321

550 North Reo Street Suite 203 Tampa, FL 33609 813.289.4700

COA # 8304

DALE A. BACIK, P.E.

FULLY SPRINKLERED

8/

/2

8:

:5

AM

REPLACE VAV BOXES AND

UPGRADE TO DIRECT DIGITAL

CONTROLS

CONTROLS - HVAC

WEST PALM BEACH, FLORIDA

08/20/2018 CJF/REM REM

548-16-612

01, 03

MH601

Revisions: Date

EXISTING LAN / WAN EXPAND

AS REQUIRED

ETHERNET TERMINAL UNIT

CONTROLLERS. (DXR TYPICAL)

ETHERNET HUB

BASEMENT

FLOOR

FIRST

FLOOR

SECOND

FLOOR

THIRD

FLOOR

FOURTH

FLOOR

FIFTH

FLOOR

SIXTH

FLOOR

SEVENTH

FLOOR

EIGHTH

FLOOR

NINTH

FLOOR

ETHERNET HUB

ETHERNET HUB

ETHERNET HUB

ETHERNET HUB

ETHERNET HUB

ETHERNET HUB

ETHERNET HUB

ETHERNET HUB

ETHERNET HUB

ETHERNET HUB

ETHERNET HUB

ETHERNET HUB

ETHERNET HUB

TYPICAL LAN LEGEND

ETHERNET CAT6 FROM CONTROLLER TO

CONTROLLER (TYPICAL)

CAT 5E ETHERNET FROM CONTROLLER TO

CONTROLLER (TYPICAL)

ALL IN 3/4" BLUE EMT CONDUIT

+ - + - SIG

ETHERNET HUB

ETHERNET HUB

FIBER TO

BUILDING 3 CLC

CONTROL SYSTEM CONFIGURATION

PROVIDE SIEMENS CAT 6 ETHERNET CONTROLLERS

NETWORK CONFIGURATION TO HAVE REDUNDANT LAN NETWORK. VAV BOX CONTROLLERS

TO OPERATE FROM CONTROLLER TO CONTROLLER AT 100BPS.

NETWORK SYSTEM ARCHITECTURE

FIBER

1. PROVIDE AN ETHERNET BASED ATU CONTROLLER SYSTEM

2. REUSE ALL EXISTING BAS SERVER WORKSTATIONS.

3. PROVIDE A SEAMLESS CONNECTION TO THE EXISTING SIEMENS BAS SYSTEM.

4. EXTEND THE EXISTING SMOKE CONTROL SYSTEM TO THE NEW VAV BOX

CONTROLLERS. WHEN THE EXISITNG AHU'S ARE PLACED INTO SMOKE PURGE

THE VAV BOXES WILL FULLY OPEN THE DAMPER.

5. THIS RISER DIAGRAM SUPERCEDES PREVIOUS DIAGRAMS.

ETHERNET SWITCHES

(TYPICAL)

CONNECT TO THE EXISTING BAS SERVER

SIEMENS DESIGO COMMAND CENTER

MUST BE A SIEMENS BRANCH SENIOR SPECIALIST TO ACCESS SERVER.

BAS CONTROLS:

This facility has an existing building automation control system as manufactured by Siemens Industry Inc. The BAS Desigo server is located in the CEP operators work area. The VAV box controllers are to be a direct extension of the existing server.

Add all the necessary Fiber and Ethernet cabling for the new VAV box DXR controllers to communicate back to the existing BAS Desigo server. Provide all the BACnet licensing for the Desigo server and for the Backup server as required for each VAV box controller. Provide all programming in the new Desigo DXR VAV box controllers to control the VAV box and existing smoke control system sequences. All functions within the controller shall be accessible (Read/Write) from the server. This includes all point information, back-up of controller memory, and controller programming language shall be programable from the server. Provide and set-up the internal Fault Detection diagnostics routines in the VAV box DXR controller and send reports back to the existing server. Reports are to be stored in the Desigo software for future reference and diagnostics.

Controllers are to be ASHRAR 36 compliant with reduced energy consumption and increase occupant comfort routines.on Provide controller points as shown on list below. Provide 3D Floor plan graphics with room numbers and department labels on existing and back-up servers. Temperature sensors are to be located on BAS Floor plan graphics. VAV box application controller shall be used for VAV reheat with smoke control. The controller series shall also have application options available for future use for demand ventilation control, automatic lighting level control, occupancy/Vacancy control, shade controls, door status, and room equipment control integration.sta

ZONE CONTROL VAV BOX TERMINAL UNIT - GENERAL PRODUCT DESCRIPTION

a) The BAS provider shall include a 3-year parts warranty for the entire ZCU and shall have a factory trained service organization located within 30 miles of the facility.

b) All integral appurtenances of the ZCU, including the hydronics, coil, terminal unit and controls shall be assembled and tested by the same manufacturer of the ZCU. All testing, commissioning, programming, certification, and validation of the ZCU shall be performed by the same ZCU manufacturer. Hydronics piping structure shall include Sensible coil, valves, Y-strainer, manual, auto flow, pressure independent balancing control valve as scheduled per drawings. ZCU shall be AHRI Standard 880-certified and labeled.

c) Terminal unit shall be double wall 22 gauge galvanized steel encasing 1” fiberglass, averaging air velocity sensor, NEMA 1 enclosure with sliding door, 120.24 volt transformer, disconnect switch, 2-row coil or as per reheat coil schedule, complete with pressurized piping package.

d) For each ZCU the ZCU manufacturer shall provide and ship a factory installed control package consisting of a DDC electronic controller (Preload from factory Siemens DXR) and room sensor, differential pressure transducer, an electric damper actuator and an electronic control valve. All components shall be furnished, mounted, piped and wired by the BAS Contractor at the factory. The control valve wiring to the DDC controller shall be encased in 3/8 inch flexible conduit in accordance with UL-1995 and the National Electric Code. An electrical junction box with a disconnect switch, 120/24 volt transformer with low voltage wiring shall be provided and mounted on the ZCU by the ZCU manufacturer. All relays required shall be installed and wired in the electrical enclosure.

e) All controls and hydronics piping shall be accessible from the same side of the unit. All hydronics piping packages shall be piped in the opposite direction of the control panel, downstream of the VAV terminal unit.

f) Mechanical Contractor shall be responsible for the factory installed bypass valve to be set in the open position and supply and return isolation valves set in closed position before running water thru the ZCU’s. After flushing all the dirty water out of system, Mechanical Contractor shall close the bypass valve and close the supply and return isolation valves. Balancer shall then balance the hydronics and air on the ZCU.

Point information from Operators Graphic View:

• Room Temperature

• Room Humidity

• Room Temperature Cooling and heating setpoints

• User cooling and heating setpoint limits ( initial set-up 70 to 74 degf)

• Supply Air Temperature

• Damper position and Command

• Supply air volume (CFM)

• VAV Box in heating or colling mode

• Heating valve Position and Command

• Outside air temperature and humidity

• Energy efficiency indication

• Plant operation mode: Normal, cooling, smoke, purge, etc.

There shall be 97 total points available. Points used in setup conditions are not to be shown on graphics.

REVISION 2 11/19/2021

REVISION 2 11/19/2021

REVISION 2 11/19/2021

REVISION 1: UPDATED BY WEST PALM BEACH VAMC 10/01/2021

REVISION 2: UPDATED BY WEST PALM BEACH VAMC 11/19/2021

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VHAWPBTayloB Polygon

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