Quick Start Guide

6
MAKING 4 WIRES WORK when 5 are required
(without the optional Add-A-Wire accessory)
• If you have an all-electric heat system with air conditioning, this
method is not an option. You must either pull new wire or use the
optional Add-A-Wire accessory (ACC-0410).
• If you have a single stage fossil fuel heater with air conditioning,
and you would like install the Venstar ColorTouch using only 4 wires,
follow the directions below. You will need a screwdriver along with a
3” or 4” long piece of thermostat wire to use as a jumper.
1. Makesurethepowerisoasstep1onpage4instructsyou.
2. Followstep4onpage9“LabelandDisconnectWires”atthe
thermostat.Pleasenotethecolorandthecorrespondingwire
designatorwitheachcolor.AnexampleistheRwireisredandthe
Wwireiswhiteandsoon.Youwillneedthisforthenextstepat
theHVACequipment.
3. Attheequipmentendofthethermostatwires,locatethe
terminals that the wires are attached to.
 A. Removethe“Gwire”fromtheterminalmarkedG.
 B. Placethe“Gwire”onterminalC.
 C. PlaceoneendofthejumperonterminalG.
 D. PlacetheotherendofthejumperonterminalY.
  Pleasenotethattherewillbemorethan1wireonterminalY.
4. Connect the wires to the terminals on the ColorTouch backplate
takingcaretomakesurethateachwirefromtheHVACequipment
is connected to the same terminal designation on the ColorTouch
backplate.Forexample:the“Cwire”fromtheHVACequipment
shouldbeconnectedtothe“C”terminalofthethermostat.The
“R”wireontheequipmentterminalshouldbeconnectedtothe
“R”terminalontheColorTouchbackplate,andsoon.