GE AZ85E09DAC Technical Service Manual page 21

Heat Mode Operation
Note:
• Minimum compressor/fans off time is 3 minutes +/- 10 seconds.
• Heat pump will not operate if outdoor thermistor sees 25°F or less.
• Heat pump and resistance heater(s) do not operate at the same time.
• Indoor and outdoor fans operate at the same time, with the following exception: Should the indoor coil
temperature reach 131°F, the outdoor fan will stop until the indoor coil temperature lowers to 126°F.
Heat pump model
currently off with an
outdoor temperature
above 25 ˚F.
Heat pump model
currently heating with
an outdoor temperature
above 25 ˚F.
Nonheat pump model
currently off
or
heat pump model
currently off with an
outdoor temperature
below 25 ˚F.
Nonheat pump model
currently heating
or
heat pump model
currently heating with
an outdoor temperature
below 25 ˚F.
Set thermostat to
heat mode. Adjust Indoor fan, outdoor
thermostat to
setting above heaters energized.
room temperature.
Indoor fan, outdoor
fan, compressor
energized.
Set thermostat to
heat mode. Adjust
thermostat to
setting above
room temperature.
Indoor fan, outdoor
fan, resistance
heaters energized.
fan, resistance
Indoor fan, outdoor
Thermostat
fan, compressor
satisfied.
Compressor on. 3 SECOND DELAY
Indoor fan, outdoor
Thermostat
fan, resistance
satisfied.
– 21 –
Indoor fan, outdoor
Thermostat
fan, resistance
satisfied.
heaters off.
Thermostat not
off.
Indoor fan, outdoor
Thermostat not
satisfied.
heaters off.
Indoor fan, outdoor
Thermostat
fan, resistance
satisfied.
heaters energized.
(Continued next page)
satisfied.
fan on.