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2.2.3
After labeling all the wires,
each wire from its terminal. Remove the old thermostat.
Make sure that the wires don't fall
into the wall after you detach them from
the old thermostat. You may choose to
tape them to the wall or tightly wind them
around a pencil or screwdriver.
2.3 Install new thermostat's wallplate
Do not allow wires to touch each other or parts on
the thermostat. Doing so could result in damage to your heating and
cooling unit.
2.3.1 Detach the new thermostat's wallplate from the rest of the
thermostat and position the wallplate on the wall according to
the illustration below, passing the labeled wires through the
wire hole in the center of the wallplate.
2.3.2 With the wallplate
fl ush against the
wall, mark
mounting holes
with a pencil.
Mounting hole
Wallplate
2.3.3 Move the wallplate aside. Drill the mounting holes using a 3/16"
drill bit. With a hammer, tap the wall anchors, provided in the
package, into the drilled holes.
2.3.4 Position the wallplate on the wall again and screw the mounting
screws into the wall anchors. Do not use a power screwdriver,
you may damage your thermostat.
use a screwdriver to disconnect
Y2
L
O/B
Y
G
W
6
W2
C
R
O
ELE
GAS
SW5
10
2.4 Match and connect wires
2.4.1 Match each wire coming from the wall to its corresponding
terminal, as shown in the illustration below. Insert each wire into
the hole on the side of its matching terminal. Using a screwdriver,
tighten the screw securely. DO NOT REMOVE THE WIRE LABELS.
In most cases, between 4 and 5 terminals are wired. The remaining
terminals will not be used.
Y2
Y2
B
SW1
into each terminal.
No thermostat installation uses all of the wires shown below.
or
L
Y
G
W
l O/B Y
G W 6 W2 C
A maximum of one wire from the wall can be wired
11
6
W2
C
R
R
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