User's Manual
Setting the System Mode
System Modes
Off: System is off. No heating or cooling will come on. If system was on, it will turn off immediately.
Heat: Only heating will occur.
Cool: Only cooling will occur.
Auto: Heating or cooling will come on according to the heating and cooling setpoints. The system will automatically
switch between heating and cooling modes as needed to maintain the setpoints.
Special Heat Pump Mode: Emergency Heat
Heat-E: An additional system mode, “Heat-E” for Emergency Heat will be displayed if the HVAC System Type is set to
Heat Pump. If there is a compressor failure with the Heat Pump system, setting the mode to Emergency Heat will allow
the supplemental Aux Heat to come on first whenever there is a call for heating. It also disables the compressor output to
prevent further damage to the HVAC system.
Caution! Emergency Heat should only be used for emergencies until the HVAC system can be repaired. Running the system in
Emergency Heat mode is commonly the most expensive mode since only the electric heat strips are being used instead of
the more efficient heat pump compressor.
Press MODE button to
change system mode
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AM
Fan
F
Menu
Sched
Mode
Run
Auto
Auto
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