Remove Old Thermostat - Honeywell RTH8500D Owner's Manual

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.
G
C
MERCURY NOTICE
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.
69-1725-1
Step 3. Remove Old Thermostat
OLD THERMOSTAT
Y W
R
WALLPLATE
THERMOSTAT
6
COVER
M22036