Table Of Contents - Bard WA421 Installation Instructions Manual

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