Honeywell RTH8500 Series User Manual page 7

Installing your thermostat
5 Separate Wi-Fi thermostat and its
wallplate.
On your new thermostat, grasp the
finger holds on the top and bottom of
the wallplate with one hand and the
thermostat (front) with the other hand.
Pull pieces apart.
6 Mount wallplate for Wi-Fi thermostat.
Mount your new wallplate using
screws and anchors included with the
thermostat.
If necessary:
Drill 3/16-in holes for drywall.
Drill 7/32-in holes for plaster.
You may be able to use your
Note:
existing wall anchors. Hold the wallplate
up to the existing anchors to check for
alignment.
Thermostat
Wallplate (back view)
5
Finger holds
Wallplate
HEAT PUMP
CONVENTIONAL
Y2 RC RC
M31543
R R
L
E/AUX
W2 W O/B
K Y Y
K
G G
C C
33-00133ES—01