Installation
Thermostat
Touch Wi-Fi
1
Table of contents
Need some help?
COMPATIBILITY ................................................................4
WHAT’S IN THE BOX ..................................................... 6
WHAT YOU’LL NEED ...................................................... 7
BEFORE YOU BEGIN ......................................................8
INSTALLATION OVERVIEW ......................................10
WARNINGS ....................................................................... 11
Visit sensicomfort.com/support for around-theclock access to support articles, instructional
downloads and comprehensive support videos.
Our highly-trained Sensi Support Team is available
seven days a week.
1.888.605.7131
support@sensicomfort.com
You’re just a few steps
away from complete
comfort control.
Never installed a thermostat before? We’ve got
you covered. Sensi
designed for a quick and easy DIY installation. The
Sensi app provides step-by-step instructions and
helpful videos to get you up and running in no time.
™
Touch Wi-Fi® Thermostat was
32
Compatibility
Not only does Sensi work with the HVAC equipment
in most homes, but it also works with most mobile
devices and smart home platforms.
Check out the information below, to make sure
Sensi thermostat will work for you:
MOBILE DEVICE COMPATIBILITY
OPERATING SYSTEM COMPATIBILITY
iOS 10.0 or later Yes
Android Yes
Amazon Fire Yes
SMART HOME PLATFORM COMPATIBILITY
OPERATING SYSTEM COMPATIBILITY
Wink Yes
Amazon Alexa Yes
Apple HomeKit
Yes, but requires a
common wire (c-wire)
HVAC SYSTEM COMPATIBILITY
SYSTEM TYPE COMPATIBILITY MODIFICATIONS
Conventional heating
and cooling
• Gas furnace
• Air conditioner
• Electric furnace
• Boiler
Heat only
• Gas furnace
• Electric furnace
• Boiler
Cool only
• Air conditioner
Heat pump Yes Requires a
Communicating
proprietary
systems
Line voltage No Requires
Millivolt systems No Requires
Remote sensors,
whole home
humidifiers/
dehumidifiers
Yes Requires a
Yes Requires a
Yes Requires a
No Needs standard
No Control of these
common wire
(c-wire)
common wire
(c-wire)
common wire
(c-wire)
common wire
(c-wire)
HVAC wiring
low voltage
(20-30VAC)
20-30VAC
accessories is
not currently
supported
54
What’s in the box?
Here’s what you’ll need.
• Sensi Thermostat
• Screws and Anchors
• Wire Labels
• Sensi Password
For Android: Found on the back of the welcome guide.
For iOS: Your Sensi HomeKit Code will display on
your thermostat during the connection process.
XXX-XX-XXX
Things you’ll definitely need:
• Small Phillips Screwdriver
• Medium Phillips Screwdriver
• Compatible iOS or Android with the Sensi
App Installed
• Your Email Address
• Your Wi-Fi Network Name (SSID) and Password
Things you might need:
• Needle-Nose Pliers
• Drill with 3/16" Bit
• Wire Stripper
76
Download the Sensi app
before you begin.
This document is not meant to be used
independently or to replace the step-by-step
installation procedure found only in the Sensi
app. The app is required for installation to ensure
proper configuration and enable Wi-Fi control of
your thermostat.
The free Sensi mobile app is available on the App
™
Store
and Google Play™. Simply search for “Sensi”
and download to your device to get started.
All system types require a common wire (c-wire).
98
Installation Overview
CREATE YOUR ACCOUNT.
Open the Sensi app on your device and follow
the prompts to create an account, using a valid
email address.
Your Sensi account can only be linked to one
email address, but you can share your account
information across devices so your whole family
can have access.
INSTALL YOUR THERMOSTAT.
The Sensi app will walk you through removing your
old thermostat from the wall, labeling your existing
wires and installing your new Sensi thermostat.
CONNECT TO WIFI.
After installation the app will walk you through
connecting your new thermostat to your home
Wi-Fi network. Remember to have your Wi-Fi
network name, password and Sensi
password ready.
REGISTER YOUR THERMOSTAT.
Finally, the app will walk you through registration
so you can start controlling your home comfort.
Anytime. Anywhere.
Warnings
INSTALLER INFORMATION
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD
CAUSE PERSONAL INJURY AND/OR PROPERT Y DAMAGE.
WARNING: OUT OF PHASE TRANSFORMERS
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
ow voltage connections at either the Heating or
Cooling transformer.
VOLTAGE REQUIREMENTS
Do not use on circuits exceeding specif ied voltage.
Higher voltage will damage control and could cause
shock or fire hazard.
Thermostat ins tallation and all components of the control system
shall con form to Cla ss II circuit s per the NEC co de.
1110
CAUTION: E5 Aler t
If “Call For Ser vice” 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
suppor t 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.
Mercur y and product s 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.
The Emerson logo is a trademark and service mark and the
12
Sensi logo is a trademark of Emerson Elect ric Co.
www.sensicomfort.com
37-7649001
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