Honeywell RTH8500D User Manual

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Permanent Hold changes the temperature setting until Permanent 

Hold is cancelled.

1. Press the Hold key. “Permanent Hold” appears on the screen.

2. Press the Up or Down arrow next to the temperature you want 

to set during “Hold.”

3. Press the Cancel key to cancel “Permanent Hold” and resume 

the schedule.

The screen shows Permanent Hold until it is cancelled.

SCHED

HOLD

CLOCK SCREEN

CANCEL

TUE

AUTO

HEAT

M19960