RTH3100C
Quick reference to controls
On: Fan runs continuously.
Auto: Fan runs only when
heating or cooling system is on.
Temperature adjustment
Press to adjust tem perature
settings.
System switch (see page 5)
• Cool: Cooling system control.
• Off: All system s off.
• Heat: Heating system control.
• Em Heat: Em ergency & Auxiliary
H eat control. C om p ressor is
locked out.
3
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