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Fan Cycle Operation
There are two Fan Cycle auxiliary settings. These modes are utilized to switch between a
CONTINUOUS setting, and the fan motor continues to operate even when the compressor or the
electric heater cycles ON/OFF. In the CYCLE setting, the indoor fan cycles ON/OFF with the heating
and cooling functions.
When the Class 2 Mode is selected, the fan motor is controlled by the remote wall thermostat,
independent of positions of Fan Cycle auxiliary set button modes.
Fan Cycle: Cooling Mode
The indoor fan runs for a short period of time, approximately 3 seconds, before the compressor and
outdoor fan are turned on.
The indoor and outdoor fan runs continuously for a short period of time, approximately 30 seconds,
after the compressor and outdoor fan are turned OFF.
In the cooling mode, the indoor fan is designed to operate at two different speeds. If the control
happens to be in the compressor restart delay (allowing the internal pressure to equalize before turning
the compressor ON), the indoor fan turns ON in the normal sequence as shown in the figure below.
The outdoor fan and compressor turn ON at the end of the restart delay.
In the Class 2 mode, the indoor fan shall be controlled directly by the remote thermostat.
Temperature
Setting +1.8°F
Temperature
COMPRESSOR
AND OUTDOOR
FAN
INDOOR FAN
ON
ON
6 sec
– 13 –
ON
ON
3 sec
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