Bard WFERV-A-4 Installation Instructions Manual Download

Page: 1 / 21

Manual

2100-495A

Page

1 of 21

MODELS:

WFERV-A-X

WFERV-A-4

ENERGY RECOVERY VENTILATOR

WITH EXHAUST

Bard Manufacturing Company, Inc.
Bryan, Ohio 43506

Since 1914...Moving ahead, just as planned.

Manual:

2100-495A

Supersedes:

2100-495

File:

Volume III, Tab 19

Date:

04-02-08

INSTALLATION INSTRUCTIONS

Summary of Contents for WFERV-A-4

Page 1: ...V A X WFERV A 4 ENERGY RECOVERY VENTILATOR WITH EXHAUST Bard Manufacturing Company Inc Bryan Ohio 43506 Since 1914 Moving ahead just as planned Manual 2100 495A Supersedes 2100 495 File Volume III Tab 19 Date 04 02 08 INSTALLATION INSTRUCTIONS ...

Page 2: ...igure 9 Operation of Unit with WFERV 14 Figure 10 Thermostat Wiring 18 Figure 11 Terminal Block Location Diagram 19 Figure 12 Hub Assembly with Ball Bearings 20 Tables Table 1 Ventilation Air CFM 16 Model Nomenclature Legend 3 Electrical Specifications 3 General Description 3 General Information 3 Unpacking 3 Performance and Application Data WFERV 4 Basic Installation Field Installation 5 6 Basic ...

Page 3: ...ality requirements while still maintaining good indoor comfort and humidity control for a variety of applications such as schools classrooms lounges conference rooms beauty salons and others It provides a constant supply of fresh air for control of airborne pollutants including CO2 smoke radon formaldehyde excess moisture virus and bacteria The ventilator incorporates patented rotary heat exchange...

Page 4: ...6 5 0 0 4 8 0 0 6 3 0 0 0 5 9 0 8 5 7 0 7 5 6 0 6 0 0 8 6 2 0 0 7 7 1 0 0 6 9 0 0 6 8 0 0 6 8 0 0 6 8 0 0 6 8 0 0 6 8 0 0 6 8 0 0 6 8 0 0 2 8 1 0 0 1 9 0 0 0 1 0 0 0 0 3 9 1 0 0 7 2 1 0 0 9 6 0 0 2 6 0 0 2 6 0 0 2 6 0 0 2 6 0 0 2 6 0 0 2 6 0 0 2 6 0 0 1 3 1 0 0 5 6 0 0 7 0 0 0 0 4 3 2 0 0 5 5 1 0 0 4 8 0 0 5 7 0 0 5 7 0 0 5 7 0 0 5 7 0 0 5 7 0 0 5 7 0 0 5 7 0 0 9 5 1 0 0 0 8 0 0 9 0 0 0 0 1 7 1 0 ...

Page 5: ...ol panel 9 Remove female plug of low voltage wiring harness from the heat recovery assembly and snap into filter rack Route electrical harness leads through the 7 8 bushing into the low voltage box See Figure 5 10 Connect leads C black W blue and G orange with fork terminal to corresponding points on terminal strip See Figure 7 for 230V units NOTE These 24 volt control wires control the starting a...

Page 6: ...d See Figure 9 Be sure to insert the top flange of the air intake hood into and through the slot in the service door and between the door and insulation to prevent bowing of the door 18 Close front door 19 Apply Certification label included with Installation Instructions next to unit Serial Plate 20 Assemble exhaust blower enclosure as shown in Figure 2A and install on unit as shown in Figure 4 wi...

Page 7: ...EMOVE VENT OPTION DOOR MIS 2350 FRONT DOOR VENT OPTION DOOR EXHAUST COVER PLATES FIGURE 2A ASSEMBLY OF EXHAUST BLOWER ENCLOSURE PART NUMBERS COLOR A B C BEIGE 134 248 X 134 244 X 134 243 X GRAY 134 248 4 134 244 4 134 243 4 B A A B C MIS 2461 ...

Page 8: ...Manual 2100 495A Page 8 of 21 FIGURE 3 FILTER AND EXHAUST PLATE LOCATION FRONT EXHAUST FILL PLATE FILL PLATE FILTER FRONT DOOR REAR EXHAUST SCREW MIS 2345 ...

Page 9: ...4 INSTALLATION OF EXHAUST BLOWER ASSEMBLY MIS 2353 ASSEMBLY RIGHT SIDE LOWER WFERV FRONT PLATE REMOVE FASTEN ASSEMBLY TO CONDENSER PARTITION WITH 4 SCREWS DO NOT LOCATING HOLES ATTATCH EXHAUST BLOWER ENCLOSER WITH SCREWS PROVIDED AS SHOWN ...

Page 10: ...Manual 2100 495A Page 10 of 21 FIGURE 5 INSTALLATION OF WFERV ...

Page 11: ...Manual 2100 495A Page 11 of 21 FIGURE 6 WFERV ASSEMBLY ...

Page 12: ... 21 FIGURE 7 WIRING 230 VOLT MIS 2356 ON WIRING DIAGRAM 230 VOLT CONTROL BOARD AS SHOWN WIRES TO L1 AND L2 ON BLOWER WIRES CONNECT WIRES INSERTED WITH CONNECT LOW VOLTAGE WIRES TO C W1 AND G AS SHOWN ON WIRING DIAGRAM GROUND WIRE ...

Page 13: ...Manual 2100 495A Page 13 of 21 FIGURE 8 INSTALLATION OF FRESH AIR INTAKE HOOD ASSEMBLY ...

Page 14: ...WITH WFERV INSTALLED SUPPLY AIR AIR EXHAUST RETURN AIR TOP FILTER BURNER BOX EXHAUST BLOWER HOOD INTAKE AIR GAS MANIFOLD GAS VALVE INDUCER DRAFT AIR BLOWER BLOWER EXHAUST WERV CASSETTE HOOD INDOOR COMFORT WFERV HOOD INTAKE BLOWER INTAKE AIR FRESH AIR MIS 2369 ...

Page 15: ...ccupied periods wastes energy decreases the expected life of the WFERV and can result in a large moisture buildup in the structure The WFERV removes 60 to 70 of the moisture in the incoming air not 100 of it Running the WFERV when the structure is unoccupied allows moisture to build up in the structure because there is little or no load Use a control system that in some way can control the system ...

Page 16: ...cing the efficiency with which the desiccant can absorb and desorb moisture FREQUENCY In a reasonably clean indoor environment such as a school office building or home experience shows that reductions of airflow or loss of sensible temperature effectiveness may not occur for ten or more years However experience also shows that measurable changes in latent energy water vapor transfer can occur in s...

Page 17: ...ssette out of ventilator 6 Use a shop vacuum with brush attachment to clean both sides of the energy recovery wheels 7 Reverse shop vacuum to use as a blower and blow out any residual dry debris from the wheel NOTE Discoloration and staining of the wheel does not affect its performance Only excessive buildup of foreign material needs to be removed 8 If any belt chirping or squealing noise is prese...

Page 18: ...Manual 2100 495A Page 18 of 21 FIGURE 10 THERMOSTAT WIRING DIAGRAM ...

Page 19: ...Manual 2100 495A Page 19 of 21 FIGURE 11 TERMINAL BLOCK LOCATION ...

Page 20: ...Manual 2100 495A Page 20 of 21 FIGURE 12 HUB ASSEMBLY WITH BALL BEARING ...

Page 21: ...Manual 2100 495A Page 21 of 21 ...

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