Bard WL423 - Manual (Page 2)

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
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 8 Recommended Air Flow ........................ 17
Table 9 Maximum EXP Electric Heat Only ........ 17
Table 10 Pressure Table ...................................... 17
Table 11
Optional Accessories ............................ 18
Getting Other Information and Publications 1
Wall Mount General Information
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
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 .......................................... 14
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 ....................................................... 17
Optional Accessories ............................................. 18
CONTENTS