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2 Remove old unit
3 Mount the 8022C
Caution
Switch electricity to the furnace and air conditioner OFF;
then proceed with the following steps.
Remove cover from old thermostat. Most are snap-on types and simply pull
off. Some have locking screws on the side or front. These must be
loosened. Note the letters printed near the terminals. Attach labels
(enclosed) to each wire for identification.
Label the wires one at a time. You must have all the wires labeled
before you proceed. With all wires labeled, remove them from the old unit.
Make sure the wires do not fall back inside the wall. Wind them around a
pencil to keep them from falling.
Loosen all screws on the old thermostat and
remove it from the wall.
Fill wall opening with non-combustible insulation
to prevent drafts.
Separate front from back of unit. Press up on the
catch on bottom of thermostat and swing the body
away from the base, lift up to remove the body from
the base.
Hold the base against the wall, with the wires
coming through the opening below the terminal block.
Position the base for best appearance. If you chose to use the optional
Wall Plate, put it in position before screwing base to wall.
Attach the base to the wall with the
two screws provided.
If you are mounting the base to sheet
rock or if you are using the old
mounting holes, use the plastic
anchors provided. Drill a 3/16-
in.(4.8mm) hole for the insert at each
screw location, then mount the base.
Read instructions carefully before removing any wiring from existing thermostat. Wires must be labeled
before they are removed. THERE IS NO STANDARD COLOR CODE. When removing wires from their
terminals, ignore the color of the wires since these may not comply with the standard.
C
RC
O
B
RH
W
Y
G
HEAT COOL
AUTO ON
OFF
FAN
PG 3
PG 4
Thermostat
Base
Wall
Plate
R
G
W
A
Terminal
Block
SET TEMP
PM
P2