Owner's Manual
Table Of Contents
- User Guide
- Welcome
- Table of Contents
- Quick Reference
- Setting Up
- Installation
- Connecting to Wi-Fi Network
- Registering Online
- Setting Time / Date
- Setting the Fan
- Setting System Mode
- Preset Energy-Saving Schedules
- Adjusting Program Schedules
- Overriding Schedules
- Viewing Equipment Status
- Setting Vacation Hold
- Setting Holiday / Event Schedules
- Setting Custom Events
- Setting Holiday Schedule
- Setting Holidat Override
- Initiating Occupancy Mode
- Customizing Screen Color
- Setting Preferences
- Cleaning the Screen
- Adjusting Security Settings
- Software Updates
- unregistering Your Thermostat
- Smart Response Technology
- Pre-Occupancy Purge
- Compressor Protection
- Auto Changeover
- Setting Advanced Preferences
- Chaging System Setup
- FAQs
- Getting Help and Responding to Alerts
- Troubleshooting
- Glossary
- C Wire Addendum
- Quick Start Guide
- Wiring Labels
- Thermostat ID Card
- Warranty
Honeywell
Customer Support
1-855-733-5465
C
Wire
Addendum
Important! This thermostat requires a
C,
or common, wire for power.
If
you are
replacing
an
existing thermostat, it might not have a C
wire connected to
it.
If
you don't see a
C wire, try one of these two options
to
power your new thermostat.
Please
contact
Customer
Support
at 1-855-733-5465 for assistance at any time
during this process.
Before beginning these steps, turn
OFF
power to your heating/cooling system.
Option
A:
Finding the
C
wire
There might
be
an
extra wire pushed into the
wall
or wrapped
around the wire
bundle. Gently pull the wire
bundle
out of the
wall
to
check for unused wires.
2
If you have
an
unused wire, connect that wire to the
C terminal
on your new thermostat.
3
Connect
the other end of the
C
wire to the
C terminal
on
your
heating/cooling system (or the zone
panel
if
your home uses
more than one thermostat to control
heat and
cool).
Be sure
the other wire(s) connected to the
C terminal
stay
securely
connected when you re-tighten the
C terminal.
M36727
Note: Not
all
heating/cooling equipment use the
C label
for the 24
VAC
common wire.
If your
heating/cooling equipment does not have a
C terminal,
check the system
manual
or contact the
manufacturer to find out which
terminal
is the 24
VAC
common.
4
Complete
the
installation following
the steps
in
the instruction manual or quick start guide.
Option
B:
Using the G wire
If
there is no unused wire
in
the
wall,
check the table below
to see
if
you can use the G wire to
power the thermostat. If
you
can't use the G wire, contact Customer Support.
Note: Using the G wire
in
this manner means you can't run your system
fan
continuously. It will
run
when the system is heating or
cooling.
Heating/Cooling System
Furnace that burns gas or propane Use G wire
Furnace that burns
oil Call
Customer
Support at 1-855-733-5465
Heat pump
WITHOUT
backup
(auxiliary)
heat
Use G wire
Heat pump
WITH
backup
(auxiliary)
heat
Call
Customer
Support at 1-855-733-5465
Zoned system (more than one thermostat
controlling
Call
Zoning
Support
at
1-800-828-8367
the heating/cooling system)
System
with a
whole-house
humidifier, dehumidifier,
Call
Customer
Support at 1-855-733-5465
or
ventilator