Bard WA721 - Manual (Page 2)

CONTENTS
i
Figures
Figure 1 Unit Dimensions ..................................... 3
Figure 2 Blower Damper Assembly ...................... 6
Figure 3 Mounting Instructions ............................. 8
Figure 4 Wall-Mounting Instructions .................. 10
Figure 5 Wall-Mounting Instructions .................. 10
Figure 6 Common Wall-Mounting Instructions .... 11
Figure 7 Electric Heat Clearances ..................... 12
Figure 8 Low Voltage Wiring .............................. 13
Figure 9 Start-Up Label ...................................... 14
Figure 10 Fan Blade Setting ................................ 17
Tables
Table 1 Electric Heat Table ................................. 2
Table 2 Dimensions of Basic Unit ....................... 3
Table 3 Electrical Specifications ......................... 4
Table 4 Operating Voltage Range ...................... 9
Table 5 Thermostat Wire Size ............................ 9
Table 6 Wall Thermostat and
Subbase Combinations .......................... 9
Table 7 Fan Blade Dimensions ......................... 17
Table 8 Suction Line Temperatures .................. 17
Table 9 CFM and ESP ...................................... 17
Table 10 Indoor Blower Performance ................. 17
Table 11 Maximum ESP of Operation
Electric Heat Only ................................ 18
Table 12 Cooling Pressure ................................. 18
Table 13 Optional Accessories ........................... 19
Getting Other Information and Publications
For more information, contact these publishers: ..... 1
Wall Mount General Information
Air Conditioner Wall Mount Model Nomenclature .... 2
Shipping Damage .................................................... 5
General
............................................................... 5
Duct Work ............................................................... 5
Filters
............................................................... 6
Fresh Air Intake ....................................................... 6
Condensate Drain .................................................... 6
Installation Instructions
Wall Mounting Information ....................................... 7
Mounting the Unit .................................................... 7
Typical Installations ................................................. 7
Wiring – Main Power ............................................. 7
Wiring – Low Voltage Wiring ................................. 9
Start Up
Important Installer Note ......................................... 14
Crankcase Heaters ................................................ 14
High Pressure Switch ............................................ 14
Three Phase Scroll Compressor Start Up
Information ............................................................. 14
Service Hints ......................................................... 15
Sequence of Operation .......................................... 15
Compressor Control Module .................................. 15
Adjustments ........................................................... 16
Phase Monitor ....................................................... 16
Pressure Service Ports .......................................... 16
Troubleshooting
Fan Blade Setting Dimensions .............................. 17
Removal of Fan Shroud ......................................... 17
Refrigerant Charge ................................................ 17
Pressure Chart ...................................................... 18
Optional Accessories ............................................. 19