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10
UNINSTALLING THE EXISTING UNIT, CONT.
if your existing
thermostat is marked...
label the wire
with this sticker:
G / F
G
G
W / H
W
W
Y / C* / M
Y
Y
RC / VC
RC
RC
RH / R / VR / 4
RH
RH
24 Volt
24 Volt cool
air conditioning
compressor
heating
fan
O
O
O
reversing valve
cool
B
B
B
reversing valve
heat