Bard W3RV2-R User Manual

Manual 2100-615A
Page 2 of 24
Figures
Figure 1 Fresh Air Damper ..................................... 5
Figure 2 Unit Dimensions ....................................... 7
Figure 3A Mounting Instructions ...............................8
Figure 3B Mounting Instructions ............................... 9
Figure 4 Electric Heat Clearance .........................10
Figure 5 Wall Mounting Instructions ..................... 11
Figure 6 Wall Mounting Instructions ..................... 11
Figure 7 Common Wall Mounting Installations .....12
Figure 8 Low Voltage Wiring Diagram ..................14
Figure 9 Fan Blade Setting ...................................20
Tables
Table 1 Fan Blade Dimensions ........................... 20
Table 2 Cooling Pressure ....................................21
Table 3 Electrical Specications W*R/LV ............22
Table 4 Recommended Airow ...........................23
Table 5 Maximum ESP Electric Heat Only ..........23
Table 6 Electric Heat ...........................................23
Table 7 Vent and Control Options ....................... 24
Getting Other Information and Publications 3
Wall Mount General Information
ECU Wall Mount Model Nomenclature .................... 4
Shipping Damage ................................................. 4
General ............................................................... 4
Duct Work ........................................................... 5
Filters ................................................................. 5
Fresh Air Intake ................................................... 5
Condensate Drain ................................................ 5
Installation
Wall Mounting Information .................................... 6
Mounting the Unit ................................................ 6
Minimum Clearances ............................................ 6
Clearances Required ............................................. 6
Wiring – Main Power ........................................... 13
Wiring – Low Voltage ........................................... 13
Digital Thermostat/Controller ............................... 13
Start Up
General ............................................................. 15
Topping Off System Charge ................................. 15
Safety Practices ................................................. 15
Three Phase Scroll Compressor ............................ 16
Phase Monitor .................................................... 16
Service Hints ..................................................... 16
Digital Controller ................................................ 16
Sequence of Operation ........................................ 17
Cooling Sequence ............................................... 18
Heating Sequence .............................................. 18
Lead/Lag Sequence ............................................ 18
Compressor Control Module ................................. 19
Adjustments ...................................................... 19
Pressure Service Ports ........................................ 19
Troubleshooting
Fan Blade Setting Dimensions ............................. 20
Removal of Fan Shroud ....................................... 20
R-410A Refrigerant Charge ................................. 20
CONTENTS

Bard W3RV2-R Specifications

General

Brand	Bard
Model	W3RV2-R
Category	Control Unit
Language	English