Bard WA421 User Manuals

Table of Contents

• Getting Other Information and Publications

  1
• Start Up

  14
• Important Installer Note

  14
• Wall Mount General Information

  2
• Crankcase Heaters

  14
• Heat Pump Wall Mount Model Nomenclature

  2
• High Pressure Switch

  14
• Shipping Damage

  5
• Three Phase Scroll Compressor Start Up

  14
• General

  5
• Condenser Fan Operation

  14
• Duct Work

  5
• Service Hints

  15
• Filters

  6
• Sequence of Operation

  15
• Fresh Air Intake

  6
• Compressor Control Module

  15
• Condensate Drain

  6
• Adjustments

  15
• Phase Monitor

  16
• Pressure Service Ports

  16
• Installation Instructions

  7
• Wall Mounting Information

  7
• Troubleshooting

  17
• Mounting the Unit

  7
• Fan Blade Setting Dimensions

  17
• Wiring – Main Power

  12
• Removal of Fan Shroud

  17
• Wiring – Low Voltage Wiring

  12
• Refrigerant Charge

  17
• Pressure Table

  18
• Optional Accessories

  19
• Unit Dimensions

  3
• Electric Heat Table

  2
• Fresh Air Damper Assembly

  6
• Electrical Specifications

  4
• Mounting Instructions

  8
• Thermostat Wire Size

  12
• Electric Heat Clearance

  9
• Wall Mounting Instructions

  10
• Combinations

  12
• Wall Mounting Instructions

  10
• Table 5 Fan Blade Dimensions

  17
• Common Wall Mounting Installations

  11
• Table 6 Refrigerant Charge

  17
• Unit 24V Terminal Board

  13
• Table 7 Indoor Blower Performance

  17
• Starting Procedure

  14
• Table 8 Recommended Air Flow

  18
• Fan Blade Setting

  17
• Table 9 Maximum EXP Electric Heat Only

  18
• Table 10 Pressure Table

  18
• Table 11 Optional Accessories

  19