Installation Instructions

Basic Installation

WARNING: Electrical shock hazard. Disconnect remote electrical power supply or supplies before servicing. Failure to do so could result in electric shock or death.

WARNING: Exposed moving parts. Disconnect electrical power before servicing. Failure to do so could result in severe injury or amputation.

CAUTION: Cut hazard. Wear gloves to avoid contact with sharp edges. Failure to do so could result in personal injury.

1. Disconnect all power to the unit. [Power Disconnect Symbol]
2. Remove both side grilles. [Side Grille Removal]
3. Remove the upper blower door and outer control panel cover. [Blower Door and Control Panel Cover Removal]
4. Remove blank off plates on both sides (behind side grilles) and discard. [Blank Off Plate Removal]
5. Remove the exhaust blank off plate through return or through side intake openings. [Exhaust Blank Off Plate Removal]
6. Install the 1913-013-2708 gasket 5/8" from the bend as shown. Then install the exhaust blade assembly using 10 screws. [Gasket and Exhaust Blade Assembly Installation]
7. Remove both air filters and the low voltage inner control panel cover. [Filter and Control Panel Cover Removal]
8. Connect the 3000-1622 wire assembly. Snap the 4-pin connector into the opening next to the low voltage box and plug the 12-pin male connector into the female plug in the low voltage box. [Wire Assembly Connection]
9. Install the vent from the side. Slide the CRV onto the exhaust partition until flush with the side of the wall mount. [Vent Installation]
10. Ensure the control plug is centered in the plug access opening on the front panel of the CRV. [Control Plug Centering]
11. From the front, through the filter opening, plug the CRV power plug into the control panel plug. [CRV Power Plug Connection]
12. The CRV exhaust blade is secured in the shipping position by the actuator blade stop. Remove the blade stop to release the blade. Proceed with caution as the actuator is spring-loaded. [Blade Stop Removal]
13. Set the blade stop using the airflow charts on pages 9-12 to achieve the desired ventilation air. Loosen the screw on the actuator blade stop, slide to the desired setting using the notches and marks on the label, and tighten the screw. [Blade Stop Adjustment]
14. Install the 539-405 intake sealing frame and the 543-223 lower block off plates on both sides. Install two (2) 1913-002-0708 7-1/2" foam gaskets below the intake sealing frame on both sides. [Intake Sealing Frame and Block Off Plate Installation]
15. Bend the two (2) sheet metal tabs in the condenser partition up to hold the bottom of the mist eliminator. Install the 7003-084 mist filters on both sides. Re-install the side grilles. [Mist Filter Installation]
16. Remove the front lower (condenser) grille. Bend the two (2) sheet metal tabs in the condenser partition up to hold the bottom of the bug screen. Install two (2) 1913-002-0808 8-1/2" foam gaskets to the sides of the cabinet. Install the 7003-083 exhaust bug screen. Re-install the grille. [Bug Screen and Gasket Installation]
17. Restore power to the unit. Energize the "A" terminal to test blade operation. Disconnect power after testing.
18. Install both filters, then re-install the inner control panel cover, outer control panel cover, and upper blower door.
19. Restore power to the unit.

Control System Notes

This ventilation package can be set to meet current ASHRAE specifications for minimum occupied airflow rates.

On/Off Operation

Energizing the "A" terminal during occupied conditions drives the fresh air damper to the pre-selected fixed position. The "G" terminal operates the indoor blower.

Blade Adjustment for Desired Ventilator Air

The amount of ventilation air is dependent on return air duct static pressure drop, supply air duct static pressure drop, indoor blower motor speed, and damper blade open position setting. Refer to the appropriate graph on pages 9-12 to determine the necessary blade setting for the required ventilation air.

Graph 1: W3SAC CRV-F5 Ventilation Delivery

Supply & Return Grilles

• 40 Duct Static
• 20 Duct Static

Graph 2: W42°C CRV-F5 Ventilation Delivery

Supply & Return Grilles

• 20 Duct Static
• 40 Duct Static

Graph 3: W48*C and W4SAC CRV-F5 Ventilation Delivery

Graph 4: W60*C and W5SAC CRV-F5 Ventilation Delivery

Graph 5: W72AC CRV-F5 Ventilation Delivery

Supply & Return Grilles

• .20 Duct Static
• Outdoor Static: .40 Duct Static

Graph 6: C36H AND C42H CRV-F5 Ventilation Delivery

Damper Position

• C36H & C42H Fan Only and C36H Part Load
• C42H Part Load
• C36H Full Load
• C42H Full Load

Graph 7: C48H AND C60H CRV-F5 Ventilation Delivery

Damper Position

• C48H & C60H Fan only
• C48H Part load
• C60H Part load
• C48H Full load
• C60H Full load

Wiring Diagrams and Tables

The document includes detailed wiring diagrams for various thermostat configurations (Programmable and Non-Programmable) with Single Stage Air Conditioners and Heat Pumps. It also provides tables outlining the unit operation with the "M" Ventilation Option for different Bard unit models (W**AC, W**HC, W*SAC, C**HY) under various operating conditions (Fan Only, Cooling, Heating, Dehumidify).

Figure 18: Programmable Thermostat Connections for CRV with Single Stage Air Conditioners

This figure illustrates the wiring connections between the CRV and a programmable thermostat for single-stage air conditioning systems.

Figure 19: Programmable Thermostat Connections for CRV with 2-Stage Air Conditioners

This figure illustrates the wiring connections between the CRV and a programmable thermostat for two-stage air conditioning systems.

Figure 20: Programmable Thermostat Connections for CRV with Heat Pumps

This figure illustrates the wiring connections between the CRV and a programmable thermostat for heat pump systems.

Figure 21: Non-Programmable Thermostat Connections for CRV with Single Stage Air Conditioners

This figure illustrates the wiring connections between the CRV and a non-programmable thermostat for single-stage air conditioning systems.

Figure 22: Non-Programmable Thermostat Connections for CRV with 2-Stage Air Conditioners

This figure illustrates the wiring connections between the CRV and a non-programmable thermostat for two-stage air conditioning systems.

Figure 23: Non-Programmable Thermostat Connections for CRV with Heat Pumps

This figure illustrates the wiring connections between the CRV and a non-programmable thermostat for heat pump systems.

Figure 24: CRV-F* Wiring Diagram

This figure provides a general wiring diagram for the CRV-F* series.

Table 1: W**AC and W**HC Unit Operation with M Ventilation Option

This table details the operational states of W**AC and W**HC units with the "M" Ventilation Option, correlating unit operation with occupancy signals, low voltage connections, fan speeds, compressor operation, and damper position.

Table 2: W*SAC Unit Operation with M Ventilation Option

This table details the operational states of W*SAC units with the "M" Ventilation Option, correlating unit operation with occupancy signals, low voltage connections, fan speeds, compressor operation, and damper position.

Table 3: C**HY Unit Operation with M Ventilation Option

This table details the operational states of C**HY units with the "M" Ventilation Option, correlating unit operation with occupancy signals, low voltage connections, compressor status, fan speed, and damper potentiometer settings.