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INSTALLATION INSTRUCTIONS
Environmental Control Unit
W3RV2-R
W3LV2-R
W3RV2-S
W3LV2-S
W3RV2-T
W3LV2-T
In compliance with 40 CFR Part 84, commonly referred to as the EPA
HFC Technology Transition rule, R410A products that were manufactured
after 1/1/25 but before 1/1/27 are solely for data center, computer room,
and ITEF applications. These units may be sold, distributed, or exported
Wall-Mounted
Variable Capacity
Models:
W5RV2-R
W5RV2-S
W5RV2-T
for said applications up until 12/31/29.
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
W5LV2-R
W6RV2-S
W5LV2-S
W6RV2-T
W5LV2-T
Manual:
Supersedes:
Date:
W6LV2-S
W6LV2-T
2100-615C
2100-615B
11-6-24
Page
1 of 24
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Summary of Contents for Bard W3RV2-R
- Page 1 HFC Technology Transition rule, R410A products that were manufactured after 1/1/25 but before 1/1/27 are solely for data center, computer room, and ITEF applications. These units may be sold, distributed, or exported for said applications up until 12/31/29. Bard Manufacturing Company, Inc. Manual: 2100-615C Bryan, Ohio 43506...
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Page 2: Table Of Contents
CONTENTS Getting Other Information and Publications ..3 Figures Figure 1 Fresh Air Damper ........5 Wall Mount General Information ......4 Figure 2 Unit Dimensions ........7 ECU Wall Mount Model Nomenclature ....4 Figure 3A Mounting Instructions......8 Shipping Damage .......... -
Page 3: Getting Other Information And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help you install the air For more information, contact these publishers: conditioner or heat pump. You can usually find these at your local library or purchase them directly from the ACCA Air Conditioning Contractors of America publisher. -
Page 4: Wall Mount General Information
WALL MOUNT GENERAL INFORMATION Environmental Control Unit (ECU) Wall Mount Model Nomenclature – MODEL SERIES OTHER OPTIONS Wall Mount X – None S – Hard Start Kit NOMINAL TONS (Single Phase Only) 3 – 3 Ton (37,000 on 60Hz; 33,700 on 50 Hz) COIL OPTIONS 5 –... -
Page 5: Duct Work
5/8 inch. Any grille that meets with 5/8 inch louver criteria may be used. It is recommended that Bard Return Air Grille Kit RG2 through RG5 or RFG2 through RFG5 be installed when no return duct is used. Contact distributor or factory for ordering information. -
Page 6: Installation
INSTALLATION Wall Mounting Information 6. Remove packaged control panel door from return opening. Use the instructions in the package 1. Two holes for the supply and return air openings to mount the door on the unit after it has been must be cut through the wall as shown in Figures attached to the wall (Step #7). -
Page 7: Figure 2 Unit Dimensions
FIGURE 2 Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal) SUPPLY RETURN WIDTH DEPTH HEIGHT MODEL W3RV2 38.200 17.125 70.563 7.88 27.88 13.88 27.88 40.00 10.88 25.75 17.93 26.38 28.75 29.25 27.00 2.75 39.19 22.75 9.14 4.19 12.00 12.00 5.00 W3LV2 W5RV2 42.075... -
Page 8: Figure 3A Mounting Instructions
Manual 2100-615C Page 8 of 24... -
Page 9: Figure 3B Mounting Instructions
Manual 2100-615C Page 9 of 24... -
Page 10: Figure 4 Electric Heat Clearance
FIGURE 4 Electric Heat Clearance W3RV2, W3LV2, W5RV2, W5LV2, W6RV2, W6LV2 Typical Building Wall Frame Outside Sheeting Inside Sheeting Supply Air Unit Duct 1/4" Min. Supply Air Duct See Note Below Flange of Wall Note: Side section view of supply air duct for wall mounted unit showing 1/4"... -
Page 11: Figure 5 Wall Mounting Instructions
FIGURE 5 Wall Mounting Instructions WALL STRUCTURE SEE FIGURES 3A & 3B – MOUNTING INSTRUCTIONS FACTORY SUPPLIED RAIN FLASHING. MOUNT ON UNIT BEFORE INSTALLATION SUPPLY AIR SUPPLY AIR SUPPLY AIR DUCT OPENING OPENING RETURN AIR RETURN AIR RETURN AIR OPENING OPENING OPENING BOTTOM MOUNTING... -
Page 12: Figure 7 Common Wall Mounting Installations
FIGURE 7 Common Wall Mounting Installations SUPPLY DUCT MAY BE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN RAIN RAIN FLASHING RAFTERS FLASHING RAFTERS FINISHED CEILING SURFACE SUPPLY AIR DUCT SUPPLY AIR DUCT FINISHED CEILING SURFACE W/ GRILLE RETURN AIR RETURN AIR OPENING W/ GRILLE... -
Page 13: Wiring - Main Power
These units are rated for 60/50 Hz operation as follows. NOTE: This system must be controlled only by the These models are designed for dual 60/50Hz Bard 8403-066 Digital Thermostat/Controller. operation. –R and –S models use a 240/208Vx24V See below for wiring and pages 17-18 for control transformer, and are shipped from the factory operating sequences. -
Page 14: Figure 8 Low Voltage Wiring Diagram
FIGURE 8 Low Voltage Wiring Diagram 8403-066 DIGITAL CONTROLLER UNIT LOW VOLTAGE OUT 9 TERMINAL GND 7-9 BLOCK OUT 8 OUT 7 RLY 6 SC 4-6 RLY 5 24 COM RLY 4 RLY 3 SC 1-3 RLY 2 RLY 1 MIS-2852 C Manual 2100-615C Page... -
Page 15: Start Up
Topping Off System Charge 9. Never heat cylinders above 125°F. If a leak has occurred in the system, Bard 10. Never trap liquid R-410A in manifold sets, gauge Manufacturing recommends reclaiming, evacuating lines or cylinders. R-410A expands significantly (see criteria above), and charging to the nameplate at warmer temperatures. -
Page 16: Three Phase Scroll Compressor
The units are All three phase compressors are wired identically controlled by a Bard digital thermostat/controller. This internally. As a result, once the correct phasing thermostat/controller contains proprietary programming... -
Page 17: Sequence Of Operation
Indoor Blower Operation Sequence of Operation The indoor blower speed will modulate with the Modes of Operation compressor operation from 50% to 100% of operation. Cool Only Mode: Once compressor operation is at 50 or below, percent • Compressor will modulate from 100% down to 20%. airflow will be at 50% and no further reduction of •... -
Page 18: Cooling Sequence
Cooling Sequence Heating Sequence On a call for heating, if the space temperature falls 1°F Compressor Operation below setpoint, the first stage of heating, RLY 4, will The cooling capacity of the WV series is controlled cycle ON. If the space temperature falls 3°F below by loading or unloading the compressor. -
Page 19: Compressor Control Module
Compressor Control Module ADJUSTMENTS Adjustable Delay on Make and Delay on Break Timer The compressor control module is standard on all models covered by this manual. The compressor The potentiometer is used to select delay on break time control module is an anti-short cycle/lockout timer with from 30 seconds to 5 minutes. -
Page 20: Troubleshooting
TROUBLESHOOTING Fan Blade Setting Dimensions Removal of Fan Shroud Shown in Figure 9 is the correct fan blade setting for 1. Disconnect all power to the unit. proper air delivery across the outdoor coil. Refer to 2. Remove the screws holding both grilles, one on Table 1 for unit specific dimension. -
Page 21: Table 2 Cooling Pressure
TABLE 2 Cooling Pressure Air Temperature Entering Outdoor Coil °F (°C) D.B/W.B. Model Pressure (23.9) (26.7) (29.4) (32.2) (35.0) (37.8) (40.6) (43.3) (46.1) (48.9) (51.7) (55.0) 75/62F Low Side (23.9/16.7C) High Side W3RV 80/67F Low Side W3LV (26.7/19.4C) High Side 85/72F Low Side (29.4/22.2C) -
Page 22: Table 3 Electrical Specifications W*R/Lv
Manual 2100-615C Page 22 of 24... -
Page 23: Table 4 Recommended Airflow
TABLE 4 Recommended Airflow Rated Rated Recommended Model CFM* ESP* Airflow Range W3R/LV 1100 1100 - 550 W5R/LV 1700 1700 - 850 W6R/LV 1700 1700 - 850 * Rated CFM and ESP on high speed tap. TABLE 5 Maximum ESP of Operation Electric Heat Only W5, W6 Model... -
Page 24: Table 7 Vent And Control Options
TABLE 7 Vent and Control Options Part Number Description CMC-15 Start Kit (230V 1-Phase) BFAD-3 Barometric Fresh Air Damper - Standard BOP-3 Blank Off Plate BFAD-5 Barometric Fresh Air Damper - Standard BOP-5 Blank Off Plate Manual 2100-615C Page 24 of 24...
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