if your existing
thermostat is marked...
RH / R / VR / 4
24 Volt
RC / VC
24 Volt cool
air conditioning
Y / C* / M / O
compressor
W / H / B
heating
G / F
fan
heat pump
Y1
compressor
label the wire
with this sticker:
Connect Wires and Mount Thermostat to
Wallplate
■ Straighten bare end of each wire and cut or strip it
RH
to 1/4" maximum. Insert each labeled wire into its
matching terminal.
NOTE: If a wire marked "C" is present, DO NOT connect
RC
it to the thermosat.
■ Hold the wires in each terminal and tighten the
terminal screws securely, otherwise a loose wire
Y/0
could cause operational problems with your system
or thermostat.
■ Push excess wire back into hole to prevent
W/B
interference with mounting of the thermostat.
■ Make sure the Thermostats System Switch is set to
OFF.
G
■ Insert two AA size alkaline batteries, observing the
polarity marked on the unit.
Y1
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