Honeywell RTH7400D Owner's Manual page 28

Step 11. Configure Installer Setup (Cont)
3. Press and hold the center button for approximately
five seconds, until the screen changes.
4. Release the center button when the display on
your thermostat matches the display below.
69-1726—1
System Auto Fan Auto
Em Heat Off Cool
FanUseEdit
System & Fan
ResetGo Back NextHoldStep
28
CancelDone
CancelDone
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