RTH4300B Programmable Thermostat
3
About your new thermostat
Quick reference to controls
Temperature adjustment
(see page 10-12)
Fan Switch
(see page 7)
On:
Fan runs continuously.
Auto:
Fan runs only when heating
or cooling system is on.
•
Set:
Press to set time/day/
schedule.
•
Hold:
Press to override
programmed temperature control.
•
Run:
Press to resume program
schedule.
System switch
(see page 6)
•
Cool:
Cooling system control.
•
Off:
All systems off.
•
Heat:
Heating system control.