To install and configure your thermostat
correctly, you must use the Sensi app. To
start the installation process, download the
Sensi app to your smart phone or tablet. It
is a free download. The Sensi app requires
the following Operating System (OS)
software to download:
• Android (Google Play) version
4.0 or later
• iOS (Apple) version 6.0 or later
*Note that in the iOS store, the Sensi App will ONLY appear on an “iPhone only”
search. On an iPad, this will have to be changed in the App Store
Apple App Store image
Google Play Store image
CREATE AN ACCOUNT
When you download the Sensi app, you
will be prompted to create an account.
This is required to log into your thermostat
via Wi-Fi. Use a valid email address and
a password of your choosing to create an
account. Remember this email address and
password. Your Sensi thermostat will
be linked to this email address once
it is registered.
Click this button if it is your
first time opening the Sensi
app. You have to create a
Sensi account using an
email address.
Gather this information before you begin
installation for a smoother walk through.
• Sensi Security Card
• Router Name/SSID
*Make sure this is a 2.4GHz network.
• Router Password
• Screwdriver
• Hardware in Sensi thermostat packaging
What’s in the box
Installation Guide
Mounting Hardware
INSTALLING THE SENSI THERMOSTAT
Once you have downloaded the Sensi app,
and have created an account, you are ready
to install the thermostat to your wall and connect
it to Wi-Fi. If no thermostats are registered yet, the
Sensi app will prompt you to add a thermostat. It
will bring you this screen below, where you can
select one of two options: “Install new thermostat
on wall and connect to Wi-Fi” or “Connect already
installed thermostat to Wi-Fi.”
This option will walk you through the entire installation process, including identifying and connecting your wiring, as well as connecting to Wi-Fi. The Sensi app will walk through a step-by-step process for installation.
Turn Off Power
1
Turn off the power to your heating and air conditioning system before handling your thermostat wires.
Photograph Your Wiring
3
This is important. The Sensi
app will prompt you to take a picture of your existing thermostat and old wiring in case you need it later. This can be helpful for troubleshooting with our technical support team if necessary. The picture you take will be saved to your camera roll or photo gallery.
Install Thermostat
Turn off power
or
Turn off the power to your heating and
air conditioning system by using your
fuse box or the switch next to your
furnace.
CAUTION
Tip: Confirm power is OFF. Try to turn on
heating or cooling by changimg temperature
on your old thermostat.
Video: How do I turn off my power
Install Thermostat
Take a photo of your wiring
Optional: Take a photo of your
existing thermostat wiring in case
you need it for reference later.
The photo will be saved to your
camera roll.
Remove Old
2
Thermostat Cover
Remove the cover using a screwdriver or by pushing the pressure latch. Some covers pull off while others need to be released using a screwdriver.
Throw Away Any
4
Jumper Wire
Sensi has a jumper wire built into it, and you will not need any jumper wires from your old unit.
Install Thermostat
Remove existing thermostat faceplate
Remove the faceplate using ascrewdriver or pushing the pressurelatch. Some faceplates pull off whileothers need to be released using a
screwdriver.
Video: How to remove old thermostat cover
Video: Recycle my old thermostat
Install Thermostat
Throw away any jumper wires
Remove
If you see a jumper wire, remove it.Your new thermostat has the jumper
Choose the terminal labels
on your existing thermostat
that have wires attached. Based
on your choices, the app will
instruct you how to label
those wires.
If you have a heat pump, and
you select the “O/B” wire, you
will see this pop-up:
Make sure to test your cooling
after installation. If you turn on
cooling and you feel warm air,
you may need to adjust the O/B
selection in the thermostat menu.
OK
Install Thermostat
Pick terminals that have wires connected
Please enter a valid configuration
R
RH
RC
C
X
Y
W
W1
W/E
W2
E
G
O
Y1
B
Y2
L
O/B
AUX
Other
Select Your Equipment
6
Based on your wiring
choices, the app will
now ask what type of
equipment you have to
configure the thermostat.
Install Thermostat
Select your furnace type
Please enter a valid configuration
Electric
Gas
Boiler / Radiant
Video: What furnace type do I have
7
Label Your Wires
The Sensi app will show you
how to label your old wires.
Wire labels are included
in your Sensi thermostat
packaging. Based on the
wires you selected in Step 5,
the app will show you which
labels to put on your old wires.
Note: These pictures may be different
than what you will see on your Sensi
app. It should show each wire that you
chose from the wire picker, and what
terminal to attach it to on your Sensi
thermostat.
Carrier
8:12 PM
Install Thermostat
Label your wires
Label Wires Old Thermostat
W/E
RC
Y
RH
Tip: remove one wire at a time and label
Remove Old
8
Thermostat Base
Disconnect all the wires
and remove your old
W
R
Y
RH
thermostat base from the
wall. Secure the wires so
that they do not fall back
into your wall.
Mount the Sensi thermostat
base on the wall using the
supplied screws. You may
need to drill holes if your
Sensi thermostat does not
align with your old thermostat.
Remove Battery Tag
11
and Attach Cover
Remove the battery tag from
the back of the thermostat,
and the Sensi thermostat will
turn on. Make sure the wires
are pushed back into the
wall so that the face plate
can securely attach to the
thermostat base. Line up the
tabs and push the face plate
onto the base. It should attach
securely to the base.
10
11
Connect the Wires
Attach the appropriate wires
to the corresponding Sensi
thermostat wire terminals.
Make sure all wires
are screwed in tight
and secure.
The app will now instruct you to connect to the Sensi
network. You need your Sensi Security Card for this step. If you misplaced your Sensi Security
Card, your Sensi Password can also be
found on a sticker on the back of the thermostat
face plate.
12
A
Press Menu, then
Connect on the
thermostat
The Wi-Fi signal will flash
in the upper left hand
corner of the thermostat.
Press “Next” in the Sensi
app to move to the next
step. *Do not press
“Next” on the thermostat.
Depending on the
smart device you are
using, you may have a
slightly different way of
connecting to the Sensi
network.
Carrier
Connect to Wi-Fi
Press menu
On the Sensi thermostat press and
release the menu button.
Video: Connecting Sensi to Wi-Fi
Menu
12
On Android
B
On an Android phone,
choose the second step,
“Tap here to select Sensi
and enter your Sensi
password.” It will take
you to your phone’s
“Available Networks”
list. Tap Sensi, and press
“Connect.” Enter your
Sensi Password
as the Sensi network
password. After
connecting to the Sensi
network, press the back
button on your device
to take you back to the
Sensi app.
12
On iPhone/iPad
C
On an iPhone or iPad, press
the devices home button on
the phone. At your home
screen, find “Settings” and
then select “Wi-Fi.” You will
see Sensi in the “Available
Networks” list. Enter your
Sensi Password as the Sensi
network password. When
connected to the Sensi
network, you will see a blue
check mark will appear next
to it. Press your home button
again. Find and open the
Sensi app again.
In the Sensi app, you
will be prompted to select
your home Wi-Fi network.
Select your home Wi-Fi
network from the list in
the app. Then enter your
home Wi-Fi network
password. Press the
arrow button in the upper
right hand corner of the
app. If your home Wi-Fi
network does not appear
in the list, you can enter
your network manually.
Connect to Wi-Fi
Select your Wi-Fi network
My Home Net
Asynchrony
AS-Visitor
our_house_n
Enter network manually
Scan again
13
To Enter Your Wi-Fi
A
Network Manually
Choose “Enter network
manually,” and input your
network name/SSID into
the field.
Connect to Wi-Fi
13
You will have to choose
B
your network’s security
type and cipher from a
list. Then you will enter
your Wi-Fi network
password.
Connect to Wi-Fi
Check Wi-Fi Status
14
You may see this screen if
an error occurred during the
connection process. Check
the icon in the upper left-hand
corner of the thermostat
display, and choose the
corresponding icon in the
app. More information will
be provided based on the icon
you choose. At this point, you
may opt to try the connection
process again, or you may
want to contact Sensi Technical
Support for further assistance.
The app will prompt you to register your thermostat after successfully connecting your Sensi thermostat to your home network. Below are the fields to complete:
Choose your country.
Input your zip
code/postal code.
This will provide
you with local
weather information
within the Sensi app.
Thermostat Info
Register your thermostat
Thermostat Name
Country
Zip Code
Time zone
Contractor Phone Number (Optional)
Thermostat Name: This should be an identifying name that is meaningful to you. If you are going to add additional thermostats this name will be what distinguishes one from the others.
Contractor phone number: This is an optional area to enter a contractor phone number, but this is only applicable for contractors that have registered at sensiregistration.com. Non-registered phone numbers will not be accepted.
16
Start Using Your Sensi
Thermostat
Congratulations! You
have successfully installed,
registered and connected
your thermostat to Wi-Fi.
You are now able to control
your home’s comfort from
your Sensi app. If your
device is connected to the
Internet, you can control
your thermostat from
anywhere, anytime.
17
Web Browser Requirements
Once you have connected your
thermostat to Wi-Fi, you can also control
your thermostat from a web browser. Go
to mythermostat.sensicomfort.com and
sign into your Sensi account. Your Sensi
thermostat can be controlled using the
following web browsers:
Accessing your Sensi thermostat
from other devices
When you log into your Sensi account with
your email address and password, the app or
web page will be able to control all of the
thermostats registered to your Sensi account.
If you give someone else your email address
and password to your Sensi account, they will
be able to log in and control any thermostats
registered to that account. You can change your
email address and password from inside the
app or when you are logged into your thermostat
via the Sensi website. Be aware of this when
giving out your information. There is no limit to
the number of devices that can access the
Sensi thermostat.
Installing Multiple Thermostats
If you are installing more than one thermostat,
follow the same installation process in the Sensi
app. Once you have one thermostat installed,
open the Sensi app on your phone. Press the
main menu button ( ) and go to “Account,”
and “Install thermostat.”
Technical Support
For problems connecting your Sensi thermostat,
call or email the Sensi Technical Support team,
and they will be happy to help you or your
contractor walk through any steps needed
to troubleshoot the Sensi thermostat.
If you forgot the password to your Sensi
account, click on “Forgot Password” on the
login screen of the Sensi app or at the
mythermostat.sensicomfort.com login website.
A temporary password will be sent to the email
address that you use to login.
Check Thermostat Configuration
Now that your thermostat is installed, it’s
a good idea to check the thermostat
configuration to make sure that your
thermostat is properly configured for your
HVAC system. Simply press the “Menu”
button on the physical thermostat. Refer to
the chart to the right for the thermostat
menu options, and the thermostat
configuration information:
On two transformer systems, the transformers MUST be in phase. Measure
the voltage across RC and RH. If more than 12 Volts AC is present between
RC and RH, then the transformers are NOT in phase. To correct this condition,
reverse the secondary low voltage connections at either the Heating or
Cooling transformer.
Thermostat installation and all components of the control system shall
conform to Class II circuits per the NEC code. Do not use on circuits
exceeding specified voltage.
WARNING
Do not use on circuits exceeding specified voltage. Higher voltage will
damage control and could cause shock or fire hazard.
CAUTION
To prevent electrical shock and/or equipment damage, disconnect
electric power to system at maincircuit breaker box until installation
is complete.If “Call For Service” is displayed on your Sensi thermostat,
and E4 or E5 appears where the room temperature should be displayed
or the backlight is flashing, please call our support team immediately
at 888.605.7131.
ATTENTION: MERCURY NOTICE
This product does not contain mercury. However, this product may replace
a product that contains mercury.
Mercury and products containing mercury must not be discarded
in household trash.
Refer to thermostat-recycle.org for location to send product containing mercury.
FOR CALIFORNIA RESIDENTS:
WARNING: This product contains a chemical known to the state of
California to cause cancer and birth defects and other reproductive harm.