Bard WA491 - Manual (Page 2)

Contents
Figures
Figure 1 Unit Dimensions ...................................... 3
Figure 2 Fresh Air Damper Assembly ................... 6
Figure 3 Mounting Instructions .............................. 8
Figure 4 Electric Heat Clearance .......................... 9
Figure 5 Wall Mounting Instructions .................... 10
Figure 6 Wall Mounting Instructions .................... 10
Figure 7 Common Wall Mounting Installations ..... 11
Figure 8 Unit 24V Terminal Board ....................... 13
Figure 9 Fan Blade Setting ................................. 16
Tables
Table 1 Electric Heat Table .................................. 2
Table 2 Electrical Specifications ................ 4 and 5
Table 3 Thermostat Wire Size ........................... 12
Table 4 Wall thermostat and Subbase
Combinations ........................................ 12
Table 5 Fan Blade Dimensions .......................... 16
Table 6 Refrigerant Charge ............................... 16
Table 7 Indoor Blower Performance .................. 16
Table 7A Indoor Blower Performance .................. 17
Table 8
Recommended Air Flow ........................ 17
Table 9 Maximum EXP Electric Heat Only ........ 17
Table 9A Maximum EXP Electric Heat Only ........ 17
Table 10 Pressure Table ...................................... 18
Table 11
Optional Accessories ............................ 19
Getting Other Information and Publications 1
Wall Mount General Information
Heat Pump Wall Mount Model Nomenclature .......... 2
Shipping Damage .................................................... 5
General
................................................................ 5
Duct Work ................................................................ 6
Filters
................................................................ 6
Fresh Air Intake ....................................................... 6
Condensate Drain .................................................... 6
Installation Instructions
Wall Mounting Information ....................................... 7
Mounting the Unit .................................................... 7
Wiring – Main Power ............................................. 12
Wiring – Low Voltage Wiring ................................. 12
Start Up
Important Installer Note ......................................... 14
High Pressure Switch ............................................ 14
Three Phase Scroll Compressor Start Up ............. 14
Phase Monitor ....................................................... 14
Condenser Fan Operation ..................................... 14
Service Hints ......................................................... 14
Sequence of Operation .......................................... 15
Compressor Control Module .................................. 15
Adjustments ........................................................... 15
Pressure Service Ports .......................................... 15
Troubleshooting
Fan Blade Setting Dimensions .............................. 16
Removal of Fan Shroud ......................................... 16
Refrigerant Charge ................................................ 16
Pressure Table ....................................................... 18
Optional Accessories ............................................. 19