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The indoor fan and heaters are turned ON at the same time. The indoor fan is turned OFF,
approximately 20 seconds, after the heaters are de-energized as shown in the graph below. In the OFF
mode, the indoor fan will continue to operate for 6 seconds after the user has stopped the Zoneline, in
order to dissipate the heat inside the Zoneline.
In the heating mode, the indoor fan shall be designed to operate at two different speeds (RPM).
Fan Cycle: Resistance Heating Mode
Fan Cycle - Resistance Heating Mode
Temperature
Temperature Setting
-1.8°F
Heater
INDOOR FAN
ON
20 sec
ON
ON
