Honeywell TH400 Thermostat User Manual


 
Operating Manual
4
Temperature adjustment (see page 11-13)
Fan Switch (see page 8)
On: Fan runs continuously.
Auto: Fan runs only when heating
or cooling system is on.
Quick reference to controls
Set: Press to set time/day/
schedule.
Hold: Press to override
programmed temperature control.
Run: Press to resume program
schedule.
System switch (see page 7)
Cool: Cooling system control.
Off: All systems off.
Heat: Heating system control.
Em Heat: Emergency & Auxiliary
Heat control. Compressor is
locked out. (Select models only.)