Bard W18H2-A Installation Instructions Manual

Bard W18H2-A Installation Instructions Manual Manual pdf 2 page image

Manual 2100-604APage 2 of 28FiguresFigure 1 Fresh Air Damper Assembly.................... 5Figure 2 Unit Dimensions ................................... 7Figure 3A Mounting Instructions W18, W24 ........... 8Figure 3B Mounting Instructions W30, W36 ........... 9Figure 3C Mounting Instructions W42, W48, W60 .. 10Figure 4 Electric Heat Clearance ....................... 11Figure 5 Wall Mounting Instructions .................. 12Figure 6 Wall Mounting Instructions .................. 12Figure 7 Common Wall Mounting Installations .... 13Figure 8 Defrost Control Board .......................... 18Figure 9 Fan Blade Setting ............................... 21TablesTable 1 Troubleshooting .................................. 19Temperature vs. Resistance ................................ 20Table 2 Fan Blade Dimension .......................... 21Table 3A Cooling Pressure ................................. 22Table 3B Heating Pressure................................. 22Table 4A Electrical Specifications ...................... 23Table 4B Electrical Specifications ...................... 24Table 5 Recommended Airflow ......................... 25Table 6 Indoor Blower Performance .................. 25Tables 7 Maximum ESP Electric Heat Only ......... 26Table 8 Electric Heat ...................................... 26Table 9 Optional Accessories ........................... 27Table 10 Vent and Control Options ..................... 28Getting Other Information and Publications 3Wall Mount General Information ......................... 4Wall Mount Model Nomenclature .......................... 4Shipping Damage ................................................ 4General .............................................................. 4Duct Work ........................................................... 5Filters................................................................. 5Fresh Air Intake ................................................... 5Condensate Drain ................................................ 5Installation ............................................................... 6Wall Mounting Information ................................... 6Mounting the Unit ............................................... 6Clearances Required ............................................ 6Minimum Clearances ........................................... 6Wiring – Main Power .......................................... 14Wiring – Low Voltage Wiring ................................ 14Start Up ................................................................... 15General ............................................................ 15Topping Off System Charge ................................. 15Safety Practices ................................................ 15Important Installer Note ..................................... 16High and Low Pressure Switch ............................ 16Three Phase Scroll Compressor ........................... 16Phase Monitor ................................................... 16Condenser Fan Operation ................................... 16Service Hints .................................................... 16Sequence of Operation ....................................... 17Pressure Service Ports........................................ 17Defrost Cycle..................................................... 17Service ..................................................................... 19Solid State Heat Pump Control ........................... 19Checking Temperature Sensor ............................. 20Fan Blade Setting Dimensions ............................ 21Removal of Fan Shroud ...................................... 21Refrigerant Charge ............................................. 21CONTENTS