Honeywell RTH8500 Series User manual

RTH8500 Series
Touchscreen Programmable Thermostat
69-2219EF-03
Quick Installation Guide

69-2219EF—03 ii
Installation is Easy
Label wires and remove your old thermostat
Install and wire your new thermostat
Set your new thermostat to match your heating/cooling
system
– This thermostat works with virtually all System
Types
– It is preset for the most common system
We are here to help.
Call 1-800-468-1502 for wiring
assistance before returning the
thermostat to the store.

1 69-2219EF—03
1Turn Off Power to Heating/
Cooling System
M28097

69-2219EF—03 2
Remove old thermostat but leave wallplate with
wires attached.
2Remove Old Thermostat
M28099
Is there a sealed tube containing
mercury? If so, see back cover
for proper disposal instructions.
Leave wallplate
in place
Old thermostat
Cover

3 69-2219EF—03
Label the wires using the supplied wire labels as you
disconnect them.
3Label Wires with Tags
Wire Labels
M28100
M28093

69-2219EF—03 4
Remove wallplate from the new thermostat and mount
onto wall.
+
++
M28334
4Separate Wallplate from
New Thermostat
Wallplate

5 69-2219EF—03
Mount the new wallplate using the included screws
and anchors.
5Mount Wallplate
Drill 3/16-in. holes for drywall
Drill 3/32-in. holes for plaster
M27514

69-2219EF—03 6
Simply match wire labels.
Remove metal jumper if you have both Rand Rc wires.
6Connect Wires
Labels don’t match? See page 21.
Have a Heat Pump system? See pages 22–23.
We are here to help.
Call 1-800-468-1502 for wiring assistance.
M27515
RC
R
W
Y
G
C
Y2
W2
LABELED WIRES
SCREW
CONVENTIONAL
INSERT WIRES
THEN TIGHTEN SCREWS
WIRE HOLE
R
W
CONVENTIONAL
G
Y

7 69-2219EF—03
Install three AAA alkaline batteries and remove tab.
M28335
Back of thermostat
Remove tab.
M28336
7Install Batteries

69-2219EF—03 8
Install thermostat onto the wallplate on the wall.
M28337
8Install Thermostat onto Wallplate