Use and Care Guide

69-2790ES—01 12
MCR34540
C
K
Rc
R
W-
O/B
Y
G
W2-
Aux/E
Y2
L
W
Y
G
R
C
Installing your thermostat
Wiring (Conventional System)
6A Wire the Wi-Fi thermostat to your
conventional system.
a Starting with the C Wire, match the
sticky tag on the wire to the terminal
labels.
You must have a C wire. See page 11.
b
Straighten wire and gently slide into
terminal hole until it clicks into place.
(If you need to remove a wire, use a
pen tip to press the terminal release
and then pull wire out.)
Note: Refer to the wiring picture you took
in Step 2.
Tip: To make it easier to slide the wire
into place, use a pen tip to hold down the
terminal release.
Note: The wiring for your
application might be different than
the wiring shown below.
Labels don’t match?
See alternate wiring keys
on pages 16-17.
Terminal release
Remove jumper loop ONLY if
you have both R and Rc wires.
EXAMPLE WIRING
Yours may look different