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INSTALLATION INSTRUCTIONS
ENERGY RECOVERY VENTILATOR
Wall Mount™ Air Conditioners
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
WALL MOUNT
WITH EXHAUST
Models:
ERVF-A3 CHERV-A3
ERVF-C3 CHERV-C3
For Use with Bard
2-1/2 through 3 Ton
and Heat Pumps
Manual:
2100-512B
Supersedes:
2100-512A
Date:
9-20-17
Page
1 of 15
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Summary of Contents for Bard ERVF-A3
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Page 1: Figure
INSTALLATION INSTRUCTIONS WALL MOUNT ENERGY RECOVERY VENTILATOR WITH EXHAUST Models: ERVF-A3 CHERV-A3 ERVF-C3 CHERV-C3 For Use with Bard 2-1/2 through 3 Ton Wall Mount™ Air Conditioners and Heat Pumps Bard Manufacturing Company, Inc. Manual: 2100-512B Bryan, Ohio 43506 Supersedes: 2100-512A... -
Page 2: Table Of Contents
CONTENTS Figures Model Nomenclature Legend ........3 Electrical Specifications ......... 3 Figure 1 Removing Access Panels ...... 6 General Description ..........3 Figure 2 Removing Filter and Grille ....7 General Information ..........3 Figure 3 Running Wiring ........8 Unpacking ............ -
Page 3: Model Nomenclature Legend
Bard W**A, W**H and C**H series shipping document to verify that the correct accessory wall-mounted units. The package consists of a unique has been shipped. -
Page 4: Figure
Performance and Application Data – ERVF-*3/CHERV-*3 Summer Cooling Performance (Indoor Design Conditions 75°F DB/62°F WB) Ambient Ventilation Rate 400 CFM Ventilation Rate 325 CFM Ventilation Rate 250 CFM O.D. 63% Efficiency 64% Efficiency 65% Efficiency DB/WB˚F 19080 6120 12020 3855 15502 4972 9921... -
Page 5: Figure
Heat/Cool in OFF position. 2. Remove the existing exterior blower access, filter C. Ventilator heat transfer wheels should rotate access and vent access panels on the Bard wall slowly (49 RPM). Intake and exhaust mount unit. Save the blower access and filter blowers should run. -
Page 6: Figure 1
Basic Installation 16. Replace the vent option access panel with the new panel provided. Attach air intake hood with screws (Factory-Installed Models) provided (see Figure 5 on page 10). Be sure to 1. Remove blower access, filter access and vent insert the top flange of the air intake hood into and option panels. -
Page 7: Figure
FIGURE 2 Removing Filter and Grille REMOVE & DISCARD Manual 2100-512B Page 7 of 15... -
Page 8: Figure
FIGURE 3 Running Wiring FIGURE 3 – INSET SIDE VIEW - SEE STEP 5 OF INSTRUCTIONS Manual 2100-512B Page 8 of 15... -
Page 9: Control Panel
FIGURE 4 Control Panel INSTALL 1-480701-0 CAP AS SHOWN AND WIRE PER WIRING DIAGRAM TEMPORARY CONNECTION FOR TESTING. SEE RECOMMENDED CONTROL SEQUENCES LOW VOLTAGE WIRES FROM HEAT RECOVERY ASSEMBLY. MIS-2641 Manual 2100-512B Page 9 of 15... -
Page 10: Replacing Access Panel
FIGURE 5 Replacing Access Panel Manual 2100-512B Page 10 of 15... -
Page 11: Airflow Diagram
FIGURE 6 Airflow Diagram FIGURE 6A – Speed Tap Label Manual 2100-512B Page 11 of 15... -
Page 12: Control Wiring
For instance, do not use the ERVF-*3/CHERV-*3 and indoor blower during the high speed tap on a ERVF-A3 if only 250 CFM occupied periods of the day. of ventilation air is needed; use the low speed tap. -
Page 13: Energy Recovery Ventilator Maintenance
Proper cleaning of the Bard energy recovery maintenance of system performance and air quality. wheel will restore latent effectiveness to near original The need for periodic cleaning will be a function of performance. -
Page 14: Belt Replacement
Annual Maintenance 4. No re-lubrication is required to heat wheel bearings of the drive motor, or to the intake and exhaust 1. Inspect and conduct the same procedures as blower motors. outlined under Quarterly Maintenance. 5. If any belt chirping or squealing noise is present, 2. -
Page 15: Hub Assembly
FIGURE 8 Hub Assembly with Ball Bearings Manual 2100-512B Page 15 of 15...