Honeywell RTH8500 用户手册

If activated during installation, the furnace filter 
reminder alerts you when it is time to replace 
your filter.
Press 

RESET after changing the filter, to restart 

the timer.
To change the reminder interval:
1. Press 

MORE, then EDIT.

2. Press 

s 

or 

t

 to select the desired interval, 

then press 

DONE.

3. Press 

RESET.

4. Press 

DONE to save and exit.

Press 

MORE to change reminder interval.

SCHED

HOLD

CLOCK SCREEN

MORE

WED

RESET

55

6:00

70

AUTO

HEAT

M28388

Press 

RESET after changing filter.

DONE

60

M28389