Honeywell RTH8500D ユーザーズマニュアル

69-1725-1

6

1. Turn off power at the heating and/or cooling system or 

fuse/circuit breaker panel.

2. Remove the cover from the old thermostat.

3. Remove the old thermostat from the wall or wallplate. Do not 

remove the wires. 

If you are replacing a thermostat that contains mercury in a sealed 
tube, do not place your old thermostat in the trash.

Contact your local waste management authority for instructions 
regarding recycling and the proper disposal of an old thermostat 
containing mercury in a sealed tube.

Y

G

C

R

W

.18

.2

.25

.3

.9

.7

.5

.4

L

O

N GER

THERMOSTAT

COVER

WALLPLATE

M22036