Bard WA Series Installation Instructions Manual

Also see for W18AB-A Series: Installation instructions Installation instructions

Bard WA Series Installation Instructions Manual Manual pdf 14 page image

Manual 2100-479Page 2 of 11Recovery Equipment Rated for R-410A...................3Leak Detectors .........................................................3Gauge Manifold........................................................3Attaching Gauge Manifold........................................3Attaching Manifold Hose to Schrader Valve.............4Leak Test..................................................................4Evacuation ........................................................ 4 & 5Charging ..................................................................5Preliminary Charging Steps .....................................5Charging the System by Weight ..............................5CONTENTSGeneralTroubleshooting the Mechanical SystemAir Conditioning & Heat Pump - Cooling .............9Low Suction — Low Head Pressure .........................9High Suction — Low Head Pressure ........................9Low Suction — High Head Pressure ........................9High Suction — High Head Pressure ........................9Heat Pump - Heating ..............................................9Low Suction — Low Head Pressure .........................9High Suction — Low Head Pressure ........................9Low Suction — High Head Pressure ........................9High Suction — High Head Pressure ........................9FiguresFigure 1: Typical AC System Cooling Cycle.............6Figure 2: Typical HP System Cooling Cycle ............7Figure 3: Heating Cycle ...........................................8ChartsTroubleshooting Chart for Air Conditioners ............10Troubleshooting Chart for Air-to-Air Heat Pumps ....11