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INSTALLATION INSTRUCTIONS
COMMERCIAL ROOM VENTILATOR
WITH SPRING RETURN AND EXHAUST
WCRVPS2P WCRVPS3P WCRVPS5P WCRVPS6P
For Use with Bard Single Stage Wall Mount
Air Conditioner and Heat Pump Models:
WCRVPS2P: W18A/L*, W24A/L*, W18H*, W24H*
WCRVPS3P: W30A/L*, W36A/L*, W30H*, W36H*
WCRVPS5P: W42A/L*, W48A/L*, W60A/L*
WCRVPS6P: W72A/L*
Models:
W42H*, W48H*, W60H*
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
Manual:
2100-667
Supersedes: NEW
Date:
2-14-17
Page
1 of 19
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Summary of Contents for Bard WCRVPS2P
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Page 1: Figure
COMMERCIAL ROOM VENTILATOR WITH SPRING RETURN AND EXHAUST Models: WCRVPS2P WCRVPS3P WCRVPS5P WCRVPS6P For Use with Bard Single Stage Wall Mount Air Conditioner and Heat Pump Models: WCRVPS2P: W18A/L*, W24A/L*, W18H*, W24H* WCRVPS3P: W30A/L*, W36A/L*, W30H*, W36H* WCRVPS5P: W42A/L*, W48A/L*, W60A/L*... -
Page 2: Table Of Contents
Required Control Connections for CRV with Heat Pumps ....... 12 Figure 10 CO Sensor Default and Final Settings Bard Part #8403-067 CO Controller ... 13 Figure 11 Call for Ventilation With or Without Compressor Operation ......18 Figure 12 Call for Compressor or Fan Only with Ventilation Off ........ -
Page 3: General Information
GENERAL INFORMATION COMMERCIAL ROOM VENTILATOR MODEL NOMENCLATURE WALL MOUNT COMMERCIAL ROOM VENTILATOR PLUG-IN CONNECTION SPRING RETURN CHASSIS SIZE 2 – 1.5 & 2 Ton Models 3 – 2.5 & 3 Ton Models 5 – 3.5 thru 5 Ton Models 6 – 6 Ton Models PARTIAL FLOW P –... -
Page 4: Figure 1
FIGURE 1 Wall Mount Unit Access Panels FILTER TRAY (THIS TRAY IS DISCARDED ONLY FOR WCRVPS2P, WCRVPS3P) EXHAUST COVER PLATE (THIS PLATE IS DISCARDED) CIRCUIT BREAKER ACCESS DOOR BLOWER ACCESS PANEL FILTER... -
Page 5: Figure 2
FIGURE 2 Condenser Exhaust Plate with Screen Condenser Exhaust Plate with Screen PARTITION COVER PLATE 4 SCREWS INSTALL COVER PLATE SCREEN MEDIA FACING PARTITION PARTITION SUPPORT ANGLE SHOWN (HIDDEN) CONDENSER PARTITION MIS-3633 MIS-3633 If filter brackets were removed in Step 5, proceed to Step 6. -
Page 6: Filter Bracket And Filter Bracket Fill Plate Installation
FIGURE 3 Filter Bracket and Filter Bracket Fill Plate Installation INSTALL FILTER BRACKET FILL PLATE WITH (2) SCREWS (ONLY FOR 2-3 TON UNITS) RIGHT HAND UNIT LEFT HAND UNIT LONG FILTER (4) REGULAR SCREWS LONG FILTER BRACKET BRACKET (4) REGULAR SCREWS SHORT FILTER BRACKET MIS-3863... -
Page 7: Figure 4
Commercial Room Ventilator (CRV) No Hood 4. The next step involves installing the unit’s filter Installation door and putting the mist eliminator filter into place (see Figure 6 on page 8). 1. Insert CRV into opening in the wall mount unit between the filter rack and the condenser section, 5. -
Page 8: Figure 5
FIGURE 5 Damper Assembly Installation CONTROL PANEL (RH SHOWN) FILTER/FILTER RACK THE WIRE HARNESS (12-PIN PLUG END) FROM THIS LOCATION TOP OF OUTDOOR ON THE VENT PACKAGE COIL WILL PLUG INTO THE FRONT SIDE OF THE CONTROL PANEL AFTER SLIDING THE VENT PACKAGE MIS-3862 INTO THE WALL MOUNT, SLIDE IT TOWARD THE CONTROL PANEL SIDE... -
Page 9: Control System Notes
CFM rate as set by Potentiometer R2 on the (Bard part #8403-067) to the wall and run additional CRV control board (see Figure 7). Refer to the proper optional wires as shown in the wiring diagrams on chart on pages 14-17 for the airflow to damper position pages 11 and 12. -
Page 10: Crv Control Board
FIGURE 7 CRV Control Board POT "R2" ADJUST DEMAND VENTILATION WHEN NON- MODULATION CO2 CONTROL CRV CONTROL BOARD SCHEME IS UTILIZED POT "R1" ADJUST MINIMUM OCCUPIED AIRFLOW WHEN NON-MODULATION CO2 CONTROL SCHEM IS UTILIZED POT "R7" ADJUST MINIMUM OCCUPIED AIRFLOW. CAN ONLY BE SET WHEN CO2 CONTROL IS READING BELOW 700 PPM WHEN UTILIZING MODULATING... -
Page 11: Required Control Connections For Crv With Air Conditioners
W1/E Yellow Blue Orange White Add-on demand Thermostat W1/E YO/D ventilation control Bard #8403-060 Optional CO2 Controller Bard Part #8403-067 24VAC CO2 OUT TEMP-OUT Unit Low B/W1 W3/8 Voltage Term. Strip 12-Pin Vent Plug WCRVPS*P PLUGS IN HERE Factory installed jumper. Remove jumper and connect Demand ventilation control, which could include switched CO2 control, or secondary to N.C fire alarm circuit if emergency shutdown required. -
Page 12: Required Control Connections For Crv With Heat Pumps
W1/E Yellow Blue Orange White Add-on demand Thermostat YO/D W1/E ventilation control Bard #8403-060 Optional CO2 Controller Bard Part #8403-067 24VAC CO2 OUT TEMP-OUT Unit Low B/W1 W3/8 Voltage Term. Strip 12-Pin Vent Plug WCRVPS*P PLUGS IN HERE Factory installed jumper. Remove jumper and connect Demand ventilation control, which could include switched CO2 control, or secondary to N.C fire alarm circuit if emergency shutdown required. - Page 13 FIGURE 10 Sensor Default and Final Settings Bard Part #8403-067 CO Controller PRESS UP AND DOWN ARROWS TO ENTER CONFIGURATION MODE USE ARROWS TO SELECT SETTING. PUSH MIDDLE BUTTON TO CHANGE. CONTROLLER WILL SHOW SET. NOTE: MENU JUMPER MUST JUMPERS MUST BE BE SET TO "ON"...
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Page 14: Blade Adjustment For Desired Ventilation Air
BLADE ADJUSTMENT FOR DESIRED Factory Default Settings VENTILATOR AIR Potentiometer R1: 3 The amount of ventilation air supplied by the Potentiometer R2: 6 commercial room ventilator is dependant on four For more accurate adjustment, use a flowhood over factors. the intake opening to measure and adjust the airflow 1. -
Page 15: Graph 2 W24Aa Ventilation Delivery
GRAPH 2 W24AA Part Flow Ventilation Delivery GRAPH 3 W30AA and W36AA Part Flow Ventilation Delivery DAMPER POSITION Supply and Return Grilles 0.20" Duct Static 0.40" Duct Static Manual 2100-667 Page 15 of 19... -
Page 16: Graph 3 W30Aa And W36Aa Ventilation Delivery 15 Graph 4 W42Aa And W48Aa Ventilation Delivery 16 Graph 5 W60Aa Ventilation Delivery
GRAPH 4 W42AA and W48AA Part Flow Ventilation Delivery GRAPH 5 W60AA Part Flow Ventilation Delivery Manual 2100-667 Page 16 of 19... -
Page 17: Graph 6 W72Aa Ventilation Delivery
GRAPH 5 W72AA Part Flow Ventilation Delivery Manual 2100-667 Page 17 of 19... -
Page 18: Commercial Room Ventilator
COMMERCIAL ROOM VENTILATOR Commercial Room Ventilator Sequence of Operation On a call for occupied conditions, CRV opens to a Features position as set by #1 Potentiometer (see Figure 11). • One piece construction – easy to install with no NOTE: These sequence descriptions do not apply if mechanical linkage adjustment required. -
Page 19: Ventilation Off
FIGURE 12 Call for Compressor or Fan Only with Ventilation Off SUPPLY AIR COOLING COIL AIR FILTER MIST ELIMINATOR OUTDOOR AIR 100% RETURN AIR DAMPER BLADE CONDENSER AIR CONDENSER COIL MIS-3867 Manual 2100-667 Page 19 of 19...