SensiTM Wi-Fi Programmable Thermostat
MANUAL OPERATION
Version: March 2016
©2016 Emerson Electric Co.
All rights reserved.
MANUAL OPERATION GUIDE
Buttons and Icons






3
Basic Functionality






4
Manual Settings






5
Menu Configurations





6
Wiring Terminals






7
Back of the Face Plate





8
Contents
SensiTM Wi-Fi Programmable Thermostat | MANUAL OPERATION

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Buttons and Icons
SensiTM Wi-Fi Programmable Thermostat | MANUAL OPERATION
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The Sensi Wi-Fi Programmable Thermostat can be operated through Wi-Fi using the Sensi app or it can be
operated at the actual wall unit. Advanced features such as thermostat settings, scheduling and email alerts
are only available through the Sensi app.
BACKLIGHT BUTTON
Illuminates the thermostat
for 10 seconds.
WI-FI STATUS
ICON
Indicates Wi-Fi
connection status.
When you turn
Wireless Off on
the thermostat, this
is blank.
TIME
Displays current
time.
BATTERY ICON
When the bars get
low, remember to
change the 2 AA
Alkaline batteries in the
back of the thermostat
face plate.
MODE BUTTON
Switches system
mode between
Heat, Cool, Off
or Aux. (Auto
Mode is only
available using
the Sensi app).
FAN BUTTON
Switches fan
mode from Auto
or On. Leave
the fan mode on
Auto to allow
the thermostat to
control the fan as
necessary.
SCHEDULE BUTTON
Toggles the schedule
On or Off. (The
thermostat runs a
program based
on time and
temperature set
points when
Schedule is On).
UP ARROW BUTTON
Adjusts the
temperature set
point or thermostat
configuration.
MENU BUTTON
Access thermostat
configurations.
(See page 6 for
more details).
DOWN ARROW
BUTTON
Adjusts the
temperature set
point or thermostat
configuration.
CURRENT SET
TEMPERATURE
Current set temperature
the thermostat will
maintain.
CURRENT ROOM
TEMPERATURE
The room temperature at
the thermostat.
KEYPAD LOCKOUT
ICON
This icon indicates the
thermostat is locked
out. No changes
can be made at the
thermostat. (Can only
be enabled from the
Sensi app).
SWITCHING SYSTEM MODE
Press the “Mode” button to switch between all available system mode settings.
When the Mode is “Off” the thermostat will not bring on your heating or cooling systems.

FAN MODE
If you want to circulate the indoor blower, you can switch Fan to “On.” Turn the Fan back
to “Auto” when you want the thermostat to control your indoor blower as necessary. Leaving
the Fan in “On” will run your blower continuously.

HOLDING ONE TEMPERATURE
If you want to hold one temperature, turn Schedule “Off.” Then, adjust the set point using
the up and down arrow buttons. The thermostat will hold this temperature, in the set Mode,
until you turn Schedule back “On” or until you adjust the set point again using the up and
down arrow buttons.

TEMPORARY HOLD
When your schedule is set to “On,” your Sensi thermostat controls your home based on
the time and temperature settings in the current schedule. To temporarily change your
temperature use the up and down arrows in the app or on the thermostat. Your Sensi
thermostat will display “Temporarily Set To” on the thermostat and will hold your new
temperature until the next scheduled set point with a minimum hold time of two hours.

TURN WI-FI OFF
If connecting to Wi-Fi is not an option, you can turn off Wi-Fi on the
thermostat and manually set a time and a schedule from the wall unit.
To turn off Wi-Fi:
1 Press “Menu”.
2 Press “Next” five times to go to the “Wireless (Setup)” screen.



“On” should be flashing at the top.
3 Use the up and down arrow buttons to change it to “Off”.
4 Press “Exit”.
Basic Functionality
SensiTM Wi-Fi Programmable Thermostat | MANUAL OPERATION

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4
1
2
3
SETTING THE TIME MANUALLY
When connecting the thermostat to Wi-Fi, the time will sync automatically. If not
connecting to Wi-Fi, follow these steps to set the time at the thermostat.

1 Turn Wi-Fi Off. (Refer to section “Turn Wi-Fi Off” on page 4).

2 Press and hold the “Schedule” button.

3 The screen will go blank and the time will start flashing at the top. Use the up

and down arrow buttons to rotate through the times until you get to the

appropriate time of day.

4 Press “Exit”.
SETTING A SCHEDULE
When connecting the thermostat to Wi-Fi, the schedule is programmed based
on time and temperature set points from the Sensi app. If you are not connecting to
Wi-Fi, follow these steps to set a basic 7 day schedule with 4 mandatory set points.
(More robust scheduling options are only available through the Sensi app.)
1 Turn Wi-Fi Off. (Refer to section “Turn Wi-Fi Off” on page 4).
2 Use the “Mode” button to set which type of schedule it will be: Heat or Cool.
3 Press and hold the “Schedule” button, until you see the time flash at the top of
the screen.
a Adjust the time on the thermostat if needed, using the up and down
arrow buttons.
4 Press “Next”.
5 You will see a large number in the middle of the screen. This refers to your set point.
a The time will be flashing at the top of the screen. Adjust the time of the first
set point using the up and down arrow buttons.
b Press “Next”. The set point will be flashing. Adjust the set point
using the up and down arrow buttons.
c Press “Next”.
d Repeat steps a-c for the second, third and fourth set points.
6 Press “Exit”.
7 Make sure “Schedule” is set to “On” on
the thermostat.
EXAMPLE SCHEDULE
If you need to keep track of your time and
temperature set points, use this table.
Manual Settings
SensiTM Wi-Fi Programmable Thermostat | MANUAL OPERATION

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Start Time Temp
1ST
2ND
3RD
4TH
1ST
2ND
3RD
4TH
Period
Daily
Daily
HEAT
COOL
Start Time
Temp
1ST
6:00AM
70F
2ND
8:00AM
62F
3RD
5:00PM
70F
4TH
10:00PM
62F
1ST
6:00AM
78F
2ND
8:00AM
85F
3RD
5:00PM
78F
4TH
10:00PM
82F
Period
Daily
Daily
HEAT
COOL
3
5
3
2
SAMPLE SCHEDULE
COMPLETE YOUR SCHEDULE
Pressing “Menu” at the thermostat allows you to change a series of settings to customize the thermostat for your
specific system. Refer to the chart below for a complete listing of thermostat configurations and what they stand for.
If you are installing the thermostat on the wall for the first time, we highly recommend that you download the
Sensi app and follow the installation instructions.


Menu Configurations
SensiTM Wi-Fi Programmable Thermostat | MANUAL OPERATION

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Configuration Menu Items Reference
No. Menu Item
Default
Options
AC1 - Conventional

Cooling 1

(single stage)
AC2 - Conventional

Cooling 2

(Two Stage)
HP1 - Heat Pump 1

(Single Stage)
HP2 - Heat Pump 2

(Two Stage)
AC0 - No Cooling
GA1 - Gas 1

(Single Stage)
GA2 - Gas 2

(Two Stage)
EL1 - Electric 1

(Single Stage)
EL2 - Electric 2

(Two Stage)
FAN - Fan (No Heat)
O - (o) – Energize in Cool
B - (b) – Energize in Heat
Z- (2) – Zone valve setting
On
Off
Wireless Setup
Connects Thermostat to Wi-Fi network
Fahrenheit or Celsius


Outdoor Equipment
Configuration
Configuration for the outdoor
equipment – either heat pump or
conventional A/C systems.
Indoor Equipment
Configuration
Configuration for the indoor equipment –
either electric or gas (which also refers to
oil, propane and boiler) heat systems.
Reversing Value Position
Configuration for the default reversing
valve state. This is for the wire in the
“O/B” terminal. This is relevant for heat
pumps, zone valves, and zone panel
systems.
Wireless Radio
Turns Wi-Fi Radio On/Off
Connect
F
C
1
2
3
4
5
6
—
F
AC2
EL2
O
ON
See below for definitions of the wiring terminals on the sub-base of the thermostat.


Wiring Terminals
SensiTM Wi-Fi Programmable Thermostat | MANUAL OPERATION

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TERMINAL OUTPUTS AND WIRING DIAGRAMS
* If the old thermostat has separate RC and RH wires coming out of the wall, clip
the RC/RH jumper on the back of the thermostat above the battery compartment.

**The common wire could be labeled “C” on your old thermostat, or it could be
labeled “B” or “X.” Please refer to the owner’s manual of your old thermostat
for clarification.


DOES WIRE COLOR CORRESPOND TO THE THERMOSTAT TERMINALS?
Wire color does not always correspond to the thermostat letters. A white wire may be
attached to the “W” terminal on the old thermostat, or it may be attached to a different
terminal with a different letter. Be sure to take a photo of the old thermostat that shows the
wire colors and terminal letters before labeling and removing any wires.
RH*
Power for heating, 24V

RC*
Power for cooling, 24V

C**

Common wire, 24V

Y
First outdoor stage cooling on conventional systems or first heat and cool on heat pump systems.


Second outdoor stage cooling on conventional systems or second heat and cool on two stage
heat pump systems.


First indoor stage heat on conventional systems or first stage auxiliary/emergency heat on
heat pump systems.


Second indoor stage heat on conventional systems or second stage auxiliary/emergency heat
on heat pump systems.




Y2
W/E
W2
G
Indoor blower (fan)

O/B
Changeover (reversing valve) connection for heat pump or zone panel systems

L
Heat Pump system, “L” wire connection.



Terminal Label
Definition

Below is a picture of the back of the Sensi thermostat face plate. The back plate shows the jumper
wires, battery compartment, and some useful information about your thermostat.


Back of the Face Plate
SensiTM Wi-Fi Programmable Thermostat | MANUAL OPERATION

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MAC ID
Unique number
that identifies
the thermostat.
DATE CODE
When your thermostat
was manufactured.
RC/RH INTERNAL
JUMPER WIRE
Only clip this if you
have separate RC
and RH transformers
coming out of
the wall.
BATTERY COMPARTMENT
Two AA Alkaline batteries are used for back-up
purposes. When you see the battery indicator bar
on the thermostat display reach 3 bars, replace
these batteries to maintain Wi-Fi connectivity.
MODEL NUMBER
Illustrates whether you
purchased the professional
or the DIY model.
SENSI SECURITY
CODE Necessary for
connecting to Wi-Fi.
Also found on a card
in the packaging.