11
GRCRHYW
if your existing
thermostat is marked...
label the wire
with this sticker:
G / F
G
G
W / H / B
W/B
W/B
Y / C* / M / O
Y/0
Y/0
RC / VC
RC
RC
RH / R / VR / 4
RH
RH

24 Volt

24 Volt cool

air conditioning

compressor

heating

fan

Y1
Y1
Y1

heat pump

compressor
Connect Wires and Mount Thermostat to Wallplate
■
Straighten bare end of each wire and cut or strip it
to 1/4” maximum. Insert each labeled wire into its
matching terminal.
NOTE: If a wire marked “C” is present, DO NOT connect
it to the thermosat.
■
Hold the wires in each terminal and tighten the
terminal screws securely, otherwise a loose wire
could cause operational problems with your system
or thermostat.
■
Push excess wire back into hole to prevent
interference with mounting of the thermostat.
■
Make sure the Thermostats System Switch is set to
OFF.
■
Insert two AA size alkaline batteries, observing the
polarity marked on the unit.