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REQUIRED: A C-Wire (common wire) is needed for 24 VAC power. If you do not
have a C-Wire, then a C-Wire Adapter is provided.
This guide will help you determine if you have a C-Wire or will need to use the
included C-Wire Adapter (Step 10). The C-Wire is a wire that originates from your
heating and cooling system and needs to be connected to the C terminal on your
thermostat. There is no universal color used to designate this type of wire.
Y
Y
•
Compatible with most heating, cooling, and heat pump systems
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Does not work with electric baseboard heat (120-240V)
•
Does not work with millivolt systems
•
Does not support S terminals for indoor and outdoor sensors
•
Android or iOS smartphone, tablet, or device
CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before beginning installation.
CAUTION: EQUIPMENT DAMAGE HAZARD
Compressor protection is bypassed during testing. To prevent equipment damage, avoid cycling the
compressor quickly.
CAUTION: MERCURY NOTICE
If this product is replacing a control that contains mercury in a sealed tube, do not place the old control
in the trash. Contact your local waste management authority for instructions regarding recycling and
proper disposal.
For help, see:
ONLINE GUIDES AND SUPPORT VIDEOS AT: honeywellhome.com/support
SOCIAL Twitter: @Honeywell_Home, Facebook: Honeywell Home
Or contact:
EMAIL honeywellhomessupport@honeywell.com
PHONE 1-800-633-3991
Compatibility Section
C
G
C
G
A
U
C-Wire
OR
C-Wire Adapter
Electrical Specifications
INPUT: 24V~@60Hz, 0.2A
3
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