
DIP-SWITCH #8
CLOSED
NO
YES
COOLING UNIT WITH
OR WITHOUT HEAT
HEAT PUMP
OPERATION, DIP
SWITCH #7 IS
IGNORED
SPACE SENSOR
CONTROL,
CLOSE DIP-SWITCH
THERMOSTAT
CLOSES
DIP-SWITCH #2
CLOSED
NO
YES
THERMOSTAT
CONTROL
CLOSE DIP SWITCH
FOR HEAT PUMP
OPERATION
OUTSIDE AIR
DAMPER AT MINIMUM
POSITION
OUTSIDE AIR
DAMPER CLOSED
G INPUT
ENERGIZED
NO
YES
NO
W ENERGIZED
YES
NO
YES
HEAT PUMP IS IN
HEATING MODE
Y CLOSED
INDOOR FAN
IS ENERGIZED
OUTDOOR FANS
ENERGIZED
COMPRESSOR(S)
ENERGIZED
DEFROST MODE
NO YES
COMPRESSOR(S)
ENERGIZED
ELECTRIC HEAT ON
Fig. 2 — Heat Pump Operation with Thermostat
7
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