RTH4300B Programmable Thermostat
3
About your new thermostatQuick 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.
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