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INSTALLATION INSTRUCTIONS
COMMERCIAL ROOM VENTILATORS
For Use with Bard 3 through 5 Ton
WA*S Series Wall Mount Air Conditioners
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead just as planned.
WITH EXHAUST
MODEL
CRVMP-5
Manual :
2100-457D
Supersedes:
2100-457C
File:
Volume III Tab 19
Date:
01-24-14
Manual
2100-457D
Page
1 of 16
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Summary of Contents for Bard CRVMP-5
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Page 1: Installation Instructions
INSTALLATION INSTRUCTIONS COMMERCIAL ROOM VENTILATORS WITH EXHAUST MODEL CRVMP-5 For Use with Bard 3 through 5 Ton WA*S Series Wall Mount Air Conditioners Bard Manufacturing Company, Inc. Manual : 2100-457D Supersedes: 2100-457C Bryan, Ohio 43506 File: Volume III Tab 19 Since 1914...Moving ahead just as planned. -
Page 2: Table Of Contents
Commercial Room Ventilator Sequence ..15 & 16 Tables Table 1 ..............4 Graphs WA3S Ventilation Airflow ......... 11 WA4S Ventilation Airflow ......... 11 WA5S Ventilation Airflow ......... 12 BARD MANUFACTURING COMPANY, INC. BRYAN, OHIO USA 43506 Manual 2100-457D Page 2 of 16... -
Page 3: General
GENERAL INFORMATION DESCRIPTION The ventilator should only be installed by a trained The CRVMP-5 ventilator is designed to be used with heating and air conditioning technician. These Bard 3 through 5 ton wall mount series step capacity instructions serve as a guide to the technician installing air conditioners. -
Page 4: Installation
WARNING 2. Remove and save the existing exterior blower Open and lock unit disconnect switch before access and service access panels on the Bard wall installing this accessory to prevent injury or mount unit. (See Figure 1.) death due to electrical shock or contact with moving parts. -
Page 5: Figure 2 Remove Air Filter & Exhaust Cover Plate
3. Remove and save existing unit air filter and screws 4. Remove and discard the exhaust cover plate. from front center grille. (See Figure 2.) FIGURE 2 REMOVE AIR FILTER AND EXHAUST COVER PLATE Manual 2100-457D Page 5 of 16... -
Page 6: Figure 3 Install Ventilator
5. Install ventilator sheet metal assembly by inserting 6. Open control panel to gain access to unit low the ventilator into the unit to the far left side voltage terminal block. clearing the right filter bracket. Once the ventilator 7. Route electrical harness leads through the 7/8" is fully inserted, slide the ventilator to the right bushing in control panel (Figure 3) into low voltage until it is tight against the back of the control panel. - Page 7 12. Replace left filter support, filter and four (4) screws 8. Connect “orange lead” with the fork terminal to either the “G” terminal of the low voltage strip in condenser grille. (will ventilate anytime there is a call for the 13.
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Page 8: Figure 4 Step Control Installation
F. Now energize the Stage #2 cooling/heating by 15. Adjust damper blade for required ventilation. increasing the thermostat setting to a greater (See next section.) offset than the actual room temperature. 16. Replace mist eliminator filter. Be sure that it is (Jumper “R”... -
Page 9: Figure 5 Damper Control Board
FIGURE 5 SETTING 3-POSITION CRV DAMPER CONTROL BOARD (Utilize the charts for your specific model on the following pages) "R7" ADJUSTMENT POTENTIOMETER FOR APPLICATIONS WITH CO SENSORS. "R2" ADJUSTMENT POTENTIOMETER SEE "ADDING OPTIONAL CO CONTROL FOR "STAGE #1" HEATING OR COOLING SENSOR"... -
Page 10: Blade Adjustment For Desired Ventilator Air
BLADE ADJUSTMENT FOR DESIRED 2. Set the damper position for Stage #1 cooling/ VENTILATOR AIR heating operation. A. Energize the evaporator blower and The amount of ventilation air supplied by the commercial room ventilator is dependent on five (5) compressor by switching thermostat to the heat or cool mode, and setting it to a minimal offset factors. - Page 11 WA3S Ventilation Airflow Stage #2 Operation Blower Only & Stage #1 Operation 12.5 17.5 22.5 27.5 Vent Position WA4S Ventilation Airflow 1000 Stage #2 Operation Stage #1 Operation Blower Only 12.5 17.5 22.5 27.5 Vent Position Manual 2100-457D Page 11 of 16...
- Page 12 WA5S Ventilation Airflow 1000 Stage #2 Operation Stage #1 Operation Blower Only 12.5 17.5 22.5 27.5 Vent Position Manual 2100-457D Page 12 of 16...
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Page 13: Adding Optional Co Control Sensor
BASIC INSTALLATION SENSOR 1. Make sure power is turned off to the unit Adding an optional Bard Part #8403-067 to this control 2. Follow steps beginning on page 2 for installation will maximize the capabilities of this vent by only... -
Page 14: Figure 6 Co Sensor Set-Up (8403-056)
FIGURE 6 8403-067 CO SENSOR SET UP 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" POSITIONED AS SHOWN TO CHANGE ANY FOR PROPER OPERATION... -
Page 15: Commercial Room Ventilator Sequence
COMMERCIAL ROOM VENTILATOR – • Actuator motor – 24 volt, power open, spring return WA*S SERIES with built in torque limiting switch. • Provides up to 75 percent of outside air. FEATURES COMMERCIAL ROOM VENTILATOR • One piece construction – easy to install with no SEQUENCE OF OPERATION mechanical linkage adjustment required. -
Page 16: Figure 8 Call For Cooling Operation
A call for cooling cycles the compressor, and dampers remain in the ventilation mode. On loss of blower operation, CRV closes fully. See Figure 8. FIGURE 8 CALL FOR COOLING OPERATION Manual 2100-457D Page 16 of 16...