Attach New Thermostat To Wallplate - Honeywell RTH8500D Owner's Manual

Step 9. Attach New Thermostat to Wallplate
1. Align the screw blocks with the pins on the back of the
thermostat.
TERMINAL
SCREW
BLOCK
2. Push the thermostat straight onto the wallplate until it snaps into
place.
3. Turn on the power at the heating and/or cooling system or fuse/
circuit breaker panel.
If the wires interfere with mounting the thermostat to the
wallplate, push the excess wire back into the wall opening.
WALLPLATE
23
PINS ON
BACK OF
THERMOSTAT
M22213
69-1725-1