Bard WA421, WA482 installation instructions Contents

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