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12HPB COOLING CYCLE (SHOWING MANIFOLD GAUGE CONNECTIONS)
DEFROST THERMOSTAT
EXPANSION/CHECK
VALVE
LOW
HIGH
PRESSURE
PRESSURE
GAUGE MANIFOLD
TO
LIQUID LINE
R−22
SERVICE
DRUM
PORT
12HPB HEATING CYCLE (SHOWING MANIFOLD GAUGE CONNECTIONS)
DEFROST THERMOSTAT
EXPANSION/CHECK
VALVE
LOW
HIGH
PRESSURE
PRESSURE
GAUGE MANIFOLD
TO
LIQUID LINE
R−22
SERVICE
DRUM
PORT
OUTDOOR UNIT
DISTRIBUTOR
BIFLOW
OUTDOOR
FILTER / DRIER
COIL
MUFFLER
COMPRESSOR
THERMOMETER
WELL
NOTE − ARROWS INDICATE DIRECTION OF REFRIGERANT FLOW
FIGURE 12
OUTDOOR UNIT
DISTRIBUTOR
BIFLOW
OUTDOOR
FILTER / DRIER
COIL
MUFFLER
COMPRESSOR
THERMOMETER
WELL
NOTE − ARROWS INDICATE DIRECTION OF REFRIGERANT FLOW
FIGURE 13
Page 9
REVERSING VALVE
SUCTION
SERVICE
VAPOR
PORT
LINE
VALVE
EXPANSION/CHECK
VALVE
REVERSING VALVE
SUCTION
SERVICE
VAPOR
PORT
LINE
VALVE
EXPANSION/CHECK
VALVE
INDOOR UNIT
INDOOR
COIL
INDOOR UNIT
INDOOR
COIL
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