Bard WH421, WH602, WH483 installation instructions Contents

CONTENTS

Getting Other Information and Publications	1	Start Up	14
For more information, contact these publishers:	1	Important Installer Note	14
Wall Mount General Information	2	High Pressure Switch	14
		Three Phase Scroll Compressor Start Up
Air Conditioner Wall Mount Model Nomenclature	2	Information	14
Shipping Damage	5	Phase Monitor	15
General	5	Service Hints	15
Duct Work	5	Sequence of Operation	15
Filters	5	Pressure Service Ports	15
Fresh Air Intake	6	Defrost Cycle	15
Condensate Drain	6	Troubleshooting	17
Installation Instructions	7
		Solid State Heat Pump Control
Wall Mounting Information	7	Troubleshooting Procedure	17
Mounting the Unit	7	Checking Temperature Sensor Outdoor
Typical Installations	7	Unit Circuit	18
Wiring – Main Power	11	Fan Blade Setting Dimensions	19
Wiring – Low Voltage Wiring	11	Removal of Fan Shroud	19
Thermostat Wiring	12	Refrigerant Charge	19
Heat Anticipation	12	Pressure Chart	20-21
Thermostat Indicator Lamps	13	Optional Accessories	21
Emergency Heat Position	13
Compressor Malfunction	13

Figures			Tables
Figure 1	Unit Dimensions	3	Table	1	Electrical Specifications	2
Figure 2	Blower Damper Assembly	6	Table	2	Electric Heat Table	4
Figure 3	Mounting Instructions	8	Table	3	Thermostat Wire Size	12
Figure 3A	Electric Heat Clearance	8	Table	4	Wall Thermostat and
Figure 4	Wall-Mounting Instructions	9			Subbase Combinations	13
Figure 5	Wall-Mounting Instructions	9	Table	5	Troubleshooting	17
Figure 6 Common Wall-Mounting Instructions ....		10	Table	6	Fan Blade Dimensions	19
Figure 7	Unit 24V Terminal Board	11	Table	7	Suction Line Temperatures	19
Figure 8	Compressor Cutoff and Outdoor		Table	8	Recommended Operating Ranges	19
	Thermostat Wiring	12	Table	9	Indoor Blower Performance	19
Figure 9	Start-Up Label	14	Table	10	Maximum ESP of Operation	20
Figure 10	Defrost Control Board	16	Table	11	Cooling Pressures	20
Figure 11	Fan Blade Setting	19	Table	12	Heating Pressures	21
			Table	13	Optional Accessories	21

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