CWire Power Adapter
(Located under thermostat.
Open end of box to remove it. T5
Smart Thermostat models that
don’t show a + on the package
after “T5” do not have the C-wire
adapter in the box.)
T5 Smart
Thermostat
Get the most from T5 Smart Thermostat
Multiple programming options that fit your lifestyle:
1. LocationBased scheduling – The thermostat uses your smartphone’s location to know when you’re away, and saves you energy. Through
geofence technology, it senses your return and helps make you comfortable upon arrival. You can always manually change your preset Home
and Away temperature either on the thermostat or on the Honeywell Home app.
2. Smart scheduling – Use a combination of geofencing and time scheduling to fit your busy, active lifestyle.
3. TimeBased scheduling – Program your thermostat for one week; each day (each day is a different schedule); MonFri, Sat, Sun; or MonFri,
SatSun. All days with four adjustable periods per day.
4. No scheduling – Control your comfort manually by adjusting temperature set points only.
Smart Alerts. Push notifications remind you of filter changes and warn you of extreme indoor temperatures.
!
Smart Response. Learns your heating and cooling system to deliver the optimal temperature at the right time.
Auto Change From Heat to Cool. Automatically determine if your home needs heating or cooling to provide maximum comfort.
Small flat head scr
Phillips scr
Pencil
Le
OFF
Y
R RC
1/4” to 3/8”
Read and save these instructions.
Removing your old thermostat
Tools you will need
Smartphone
To install your
ewdriver
ewdriver
velHome Wi-Fi
Password
thermostat and
photograph existing
wiring.
Honeywell Home app
To configure your
system and connect to
your smartphone.
You may need
Wire stripper
Needle-nose pliersDrill and
drill bit (7/32 in)
CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before beginning
installation.
CAUT ION: 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.
REQUIRED: 24 VAC POWER (“C” WIRE)
CWire Power Adapter Included to provide power if needed.
Compatibility
• Compatible with most heating, cooling, and heat pump systems
• Required: 24 VAC power (“C” wire). CWire Power Adapter Included to
provide power if needed
• Does not work with electric baseboard heat (120240V)
• Does not work with millivolt systems
• Does not support input (S terminals) for indoor and outdoor sensors
• Does not support relay (U terminals) for ventilation
• Android or iOS smartphone, tablet, or device
For help, contact
WEB honeywellhome.com/support
PHONE 18006333991
SOCIAL Twitter: @Honeywell_Home, Facebook: Honeywell Home
1 Turn power OFF
To protect yourself and your
equipment, Turn off the power
at the breaker box or switch that
controls your heating/cooling
system.
2 Check that your system is off
Change the temperature on
your old thermostat. If you don’t
hear the system turn on within 5
minutes, the power
is off.
Note: If you have a digital thermostat that has a blank display, skip
this step.
3 Remove your old thermostat from
the wall plate
On most thermostats, you can take
off the thermostat by grasping and
gently pulling. Some thermostats
may have screws, buttons, or
clasps.
Do not remove any wires from
your thermostat at this time!
4 Make sure there are no
120/240V wires
Do you have thick black wires
with wire nuts?
Is your thermostat 120V or
higher?
If you answered yes to either of
these questions, you have a line
voltage system and the thermostat
will not work.
If you are unsure visit:
honeywellhome.com/support
5 Take a picture of how your wiring
looks right now
Be sure to include the letters
next to the terminals where the
wires are inserted. This will be a
helpful reference when wiring your
thermostat.
Tip: If the color of your wires has
faded or if 2 terminals have the
same wire color, use the wire
labels provided in the package to
label each wire.
6 Remove any jumpers
A jumper connects one terminal to
another terminal. It may look like
a small staple or even a colored
wire and must be removed before
continuing. Use a screwdriver to
release wires from terminals.
The thermostat does not
need jumpers.
OFF
ON
OFF
Switch
Breaker box
75
Wire nut
Thick black wire
Ter mina ls
Example of
a jumper
2
7 Record if you have wires in the
following terminals
Do not include jumpers as a part
of your count. The thermostat
does not need jumpers.
8 Write down the color of the wires
Check mark the wires that are connected to terminals. Next to the
check mark, write down the color of the wire. Do not include jumpers
as a part of your count.
Check all that apply (Not all will apply):
TerminalWire Color
Y
Y2
G
C
Requir ed (see step 9)
S and U terminals are not supported with this thermostat.
If there are wires in terminals that are not listed, you will need
additional wiring support. Visit honeywellhome.com/support to
find out if the thermostat will work for you.
9 Do you see a wire connected to the C terminal?
If yes, skip to step 10.
If you do not see a C wire, proceed with the options below:
Option A - Finding the CWire:
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.
If you have an unused wire, connect that
wire to the C terminal on your new thermostat in step 13.
Connect the other end of the unused wire
to the C terminal on your heating/cooling
system (or the zone panel if your home
uses more than one thermostat to control temperature). Be sure any
other wire(s) connected to the C terminal stay securely connected
when you re-tighten the terminal.
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.
Complete installation by following the remaining steps in this guide.
Option B - Using the CWire Power Adapter:
If you do not have an unused wire in the wall , see the C Wire Adapter
Installation Guide included in the box. Open the top or bot tom flap
of the box to locate the C Wire Adapter.
10 Disconnect the wires and remove the
old wall plate
Use a screwdriver to release wires from
terminals.
Tip: To prevent wires from falling back
into the wall, wrap the wires around a
pencil.
TerminalWire Color
R
Rh
Rc
TerminalWire Color
A or L/A
O/B
W2 or AUX
E
W
K
Installing your T5 Smart Thermostat
T5 Smart
Thermostat
11 Bundle and insert wires through
the UWP
Pull open the UWP and insert the
bundle of wires through the back
of the UWP.
Make sure at least 1/4-inch of
each wire is exposed for easy
insertion into the wire terminals.
12 Insert the wall anchors
It is recommended that you use
the wall anchors included in the
box to mount your thermostat.
You can use the UWP to mark
where you want to place the wall
anchors.
a) Level the wall plate.
b) Mark the location of the wall
anchors using a pencil.
c) Drill the holes.
d) Insert wall anchors.
e) Make sure anchors are flush
with wall.
Tip: Use a 7/32 drill bit.
Screws
UWP
Mounting
System
AnchorsWall
3
13 Set R-switch position and insert R-wire or wires
ON
Set the R-switch up or down based on your wiring notes in Step 7.
Insert wires into the inner holes of the terminal s on the UWP. The
tabs will stay down once the wire is inserted.
If you have 1 R-wire (R, Rh, or Rc)
16 Attach your thermostat
Align the thermostat onto the
UWP and firmly snap it into place.
o
90
1. Set
R-switch to
the up
position.
or
If you have 2 R-wires (R or Rh, and Rc)
1. Set
R-switch
to the down
position.
2. Insert your
R-wire (R, Rh
or Rc) into
R-terminal.
2. Insert your
Rc wire into
Rc-terminal.
3. Insert your
R or Rh
wire into
RTerminal.
17 Turn your power ON
Turn on the power at the breaker
box or switch that controls the
heating/ cooling system.
Breaker box
ON
18 Return to the thermostat
Return to the thermostat. Confirm
the screen shows S TART SETUP.
If it does, continue to “Setup with
Honeywell Home App” below.
If your thermostat does not show
START SE TUP, please contact
Resideo support.
Setup with Honeywell Home App
1 Start Setup with the app
Tou ch STAR T SET UP on thermostat.
ON
OFF
Switch
14 Connect remaining wires from
Step 8
Tip: Do not mount the UWP to the
wall prior to connecting the wires.
Depress the tabs to put the wires
into the inner holes of their corresponding terminals on the UWP
(one wire per terminal) until it is
firmly in place.
Gently tug on the wires to verify
they are secure.
Tip: If you need to release the
wires again, push down the
terminal tabs on the sides of the
UWP.
15 Mount the UWP and close the
door
Mount the UWP using the
provided screws. Install all three
screws for a secure fit on your
wall. Close the door after you’re
finished.
This wiring is just an example,
actual wiring may vary.
Use 3x
supplied
screws #8
11/2”
2 Select to setup with the app
Touch Yes on the USE APP screen.
No
Back
3 Your thermostat is now ready to be configured using the
Honeywell Home app
a) Download the “Honeywell Home” app from the App store or
Google play.
b) Open the Honeywell Home app. Your thermostat should appear
under Thermostat Found. Tap SET UP NOW as shown below to
continue. If your thermostat doesn’t appear, create an account
(if necessary), or sign in to your Honeywell Home account. Then
select the T5 Smart Thermostat to install.
c) The Honeywell Home app will walk you through the rest of setup.
AB
Thermostat Found:
SET UP NOW
C
Yes
4
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