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69-2718EF—03 16
Installing your thermostat
Alternate wiring (conventional system)
Use this if your wire labels don’t match the terminal labels.
Note: You must have
a C wire or equivalent.
See page 13.
See key to
1
–
3
on page 17.
Y2
R
4M
V
RHY1
H
W1F
RYWG
RC
W2
W2
G W
YRRC
Y2
C
MCR33885
CONVENTIONAL
C
B
C1
X
K
1
2
3