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INSTALLATION INSTRUCTIONS
WALL MOUNT ENERGY RECOVERY
VENTILATOR WITH EXHAUST
AND OUTDOOR AIR SHUT-OFF DAMPER
For Use With Bard 3.5 – 6 Ton
Wall Mount Air Conditioners and Heat Pumps
Models:
WERVPA5 WERVPC5
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
Manual:
2100-635A
Supersedes: 2100-635
Date:
3-21-18
Page
1 of 18
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Summary of Contents for Bard WERVPA5
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Page 1: Figure
INSTALLATION INSTRUCTIONS WALL MOUNT ENERGY RECOVERY VENTILATOR WITH EXHAUST AND OUTDOOR AIR SHUT-OFF DAMPER Models: WERVPA5 WERVPC5 For Use With Bard 3.5 – 6 Ton Wall Mount Air Conditioners and Heat Pumps Bard Manufacturing Company, Inc. Manual: 2100-635A Bryan, Ohio 43506... -
Page 2: Table Of Contents
CONTENTS Model Nomenclature ..........3 Figures Electrical Specifications ......... 3 Figure 1 Remove Blower Assembly and Discard Shipping Plate ......5 General Description ..........3 Figure 2 Remove Access Panels ......6 General Information ..........3 Figure 3 Remove Air Filter and Unpacking ............ -
Page 3: Model Nomenclature
It is designed as a single package which can be easily factory or field installed for new installations or retrofit • Rain hood and mist eliminator to the new Bard W series wall-mounted units. The • Installation instructions package consists of a unique rotary Energy Recovery... -
Page 4: Performance And Application Data - Wervp*5
PERFORMANCE AND APPLICATION DATA – WERVP*5 Summer Cooling Performance (Indoor Design Conditions 75°DB/62°WB) Ambient Ventilation Rate 450 CFM Ventilation Rate 375 CFM Ventilation Rate 300 CFM 21465 14580 6884 13952 9477 4475 17887 12150 5737 11805 8018 3786 14310 9720 4590 9587 6512... -
Page 5: Basic Field Installation
Electrical Following Units 1. Unpack the ventilator assembly which includes the W42AA/W42HA-A, -B integral ventilator with attached electrical harness W48AA/W48HA-A, -B 230/208 - and miscellaneous hardware. WERVPA5 W60AA/W60HA-A, -B 1 or 3 phase W72AB-A, -B WARNING W42AA/W42HA-C W48AA/W48HA-C WERVPC5 460 - 3 phase... -
Page 6: Remove Access Panels
3. Disconnect unit power. 4. Remove the existing exterior filter access and service access panels on the Bard wall mount unit (see Figure 2). Save the filter access panel and discard service access panel. FIGURE 2 Remove Access Panels CIRCUIT BREAKER REMOVE &... -
Page 7: Remove Air Filter And Exhaust Cover Plate
5. Remove and save existing unit air filter (see FIgure 3). Remove and discard the exhaust cover plate and remove center screw from condenser grille. FIGURE 3 Remove Air Filter and Exhaust Cover Plate REMOVE & SAVE UNIT AIR FILTER REMOVE &... -
Page 8: Install Exhaust Blower Assembly
6. Install exhaust blower assembly in exhaust 8. Remove access panel and plug in exhaust blower opening as shown in Figure 4 and secure with as shown in Figure 5. Replace access panel. four (4) screws. Position 4-pin connector so it is 9. -
Page 9: Plug Exhaust Blower Into Control Panel
10. Remove female plug of high voltage wiring harness of compressor contactor per wiring diagram (see (3-pin plug) from the heat recovery assembly Figure 6 on page 9). Connect high voltage plugs and snap into the unit control panel (from inside back together (see Figure 5). -
Page 10: Connect Leads To Terminals
11. Plug low voltage plug (12-pin plug) from the heat NOTE: These 24 volt control wires control the starting recovery unit into the front side of the control and stopping of the energy recovery ventilator panel (see Figures 5 and 6). and can be independently controlled by an energy management control or timer. -
Page 11: Attach Hood And Replace Access Panel
12. Replace inner and outer control panel covers. 14. Re-install the blower access and filter access panels at top of unit and secure with sheet metal 13. Ventilator checkout screws. A. Resupply power to unit. 15. Replace the vent option access panel with the new B. -
Page 12: Basic Installation (Factory-Installed Versions)
For instance, do not use the high speed tap on mechanical thermostat to determine occupancy in the structure. Bard recommends Bard Model a WERVPA5 if only 300 CFM of ventilation air is needed. Use the low speed tap instead. Using the CS9B*-**** CompleteStat for this application (see high speed tap would serve no useful purpose and Figure 11 on page 15). -
Page 13: Ventilation Airflow
VENTILATION AIRFLOW FIGURE 9 Airflow Diagram The WERVPA5 and WERVPC5 are equipped with a 3-speed motor to provide the capability of adjusting CONDITIONED AIR the ventilation rates to the requirements of the specific (SUPPLY AIR) application by changing motor speeds (see Table 1). -
Page 14: Figure 10 Heat Pump Wiring
FIGURE 10 Heat Pump Wiring Thermostat With Humidity W1/E D/YO Part #8403-060 Wall Mount W3/8 Y2 B/W1 Heat Pump 12 Pin Vent Option Plug Red/White Orange Black/White Brown/White WERV PROGRAM THERMOSTAT FOR CONTINUOUS BLOWER DURING OCCUPIED PERIODS ONLY NEEDED IF DEHUMIDIFICATION IS USED INSTALL JUMPER BETWEEN "G"... -
Page 15: Figure 8 Figure
COMPLETESTAT PART #CS9B-THOC Yellow Blue Orange White Thermostat With Humidity Part #8403-060 W1/E D/YO Optional CO Controller Bard part #8403-067 24 VAC INPUT CO2 OUTPUT TEMP. OUTPUT W3/8 B/W1 Wall Mount Heat Pump 12 Pin Vent Option Plug Red/White Orange... -
Page 16: Energy Recovery Ventilator Maintenance
Proper cleaning of the Bard energy recovery The need for periodic cleaning will be a function of wheel will restore latent effectiveness to near original operating schedule, climate and contaminants in the performance. -
Page 17: Figure 12 Belt Replacement Instructions
8. If any belt chirping or squealing noise is present, 3. Rinse wheel thoroughly after application of apply a small amount of LPS-1 or equivalent dry the cleaning solution and allow to drain before film lubricant to the belt. reinstalling. 4. -
Page 18: Figure 13 Hub Assembly With Ball Bearings
FIGURE 13 Hub Assembly with Ball Bearings Manual 2100-635A Page 18 of 18...