Honeywell RTH6580WF Thermostat User Manual


 
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Selecting system mode
Note: Depending on how
your thermostat was installed,
you may not see all system
settings.
Press System to select:
Heat: Controls only the heating system.
Cool: Controls only the cooling system.
Off: Heating/cooling systems are off.
Auto: Selects heating or cooling depending on
the indoor temperature.
Em Heat (heat pumps with aux. heat):
Controls auxiliary/emergency heat.
Compressor is off.
MCR33880