Sensi Wi-Fi Programmable Thermostat

TM  

Sensi Wi-Fi Programmable Thermostat  

MANUAL OPERATION  

Version: March 2016  

©

2016 Emerson Electric Co.  

All rights reserved.  

Contents  

MANUAL OPERATION GUIDE  

Buttons and Icons  

Basic Functionality  

Manual Settings  

3

4

5

6

7

8

Menu Configurations  

Wiring Terminals  

Back of the Face Plate  

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Sensi Wi-Fi Programmable Thermostat | MANUAL OPERATION  

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Buttons and Icons  

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.  

CURRENT SET  

BACKLIGHT BUTTON  

Illuminates the thermostat  

for 10 seconds.  

TEMPERATURE  

Current set temperature  

the thermostat will  

maintain.  

WI-FI STATUS  

ICON  

UP ARROW BUTTON  

Adjusts the  

temperature set  

point or thermostat  

configuration.  

Indicates Wi-Fi  

connection status.  

When you turn  

Wireless Off on  

the thermostat, this  

is blank.  

MENU BUTTON  

Access thermostat  

configurations.  

TIME  

Displays current  

time.  

(

See page 6 for  

more details).  

DOWN ARROW  

BUTTON  

Adjusts the  

temperature set  

point or thermostat  

configuration.  

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  

FAN BUTTON  

Switches fan  

mode from Auto  

or On. Leave  

the fan mode on  

Auto to allow  

the thermostat to  

SCHEDULE BUTTON  

Toggles the schedule  

On or Off. (The  

thermostat runs a  

program based  

on time and  

KEYPAD LOCKOUT  

ICON  

CURRENT ROOM  

TEMPERATURE  

The room temperature at  

the thermostat.  

This icon indicates the  

thermostat is locked  

out. No changes  

can be made at the  

thermostat. (Can only  

be enabled from the  

Sensi app).  

Mode is only  

available using  

the Sensi app).  

temperature set  

control the fan as points when  

necessary.  

Schedule is On).  

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Sensi Wi-Fi Programmable Thermostat | MANUAL OPERATION  

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Basic Functionality  

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

2

Press “Menu”.  

Press “Next” five times to go to the “Wireless (Setup)” screen.  

“On” should be flashing at the top.  

3

4

Use the up and down arrow buttons to change it to “Off”.  

Press “Exit”.  

1

2

3

4

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Sensi Wi-Fi Programmable Thermostat | MANUAL OPERATION  

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Manual Settings  

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.  

3

1

2

3

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

Press and hold the “Schedule” button.  

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.  

2

(

More robust scheduling options are only available through the Sensi app.)  

1

2

3

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

Use the “Mode” button to set which type of schedule it will be: Heat or Cool.  

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  

3

arrow buttons.  

4

5

Press “Next”.  

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  

5

using the up and down arrow buttons.  

c Press “Next”.  

d Repeat steps a-c for the second, third and fourth set points.  

6

7

Press “Exit”.  

Make sure “Schedule” is set to “On” on  

the thermostat.  

Daily  

Start Time  

Daily  

Temp  

Daily  

Start Time  

Daily  

Temp  

Period  

Period  

1ST  

EXAMPLE SCHEDULE  

If you need to keep track of your time and  

temperature set points, use this table.  

1ST  

6:00AM  

8:00AM  

5:00PM  

10:00PM  

6:00AM  

8:00AM  

5:00PM  

10:00PM  

70F  

62F  

70F  

62F  

78F  

85F  

78F  

82F  

2ND  

2ND  

3RD  

4TH  

1ST  

HEAT  

HEAT  

3

4

1

2

3

4

RD  

TH  

ST  

ND  

RD  

TH  

2ND  

3RD  

4TH  

COOL  

COOL  

SAMPLE SCHEDULE  

COMPLETE YOUR SCHEDULE  

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Sensi Wi-Fi Programmable Thermostat | MANUAL OPERATION  

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Menu Configurations  

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.  

Configuration Menu Items Reference  

No. Menu Item  

Default  

Options  

1

2

3

Wireless Setup  

—

Connect  

Connects Thermostat to Wi-Fi network  

Fahrenheit or Celsius  

F

F

C

Outdoor Equipment  

Configuration  

AC2  

AC1 - Conventional  

Cooling 1  

Configuration for the outdoor  

equipment – either heat pump or  

conventional A/C systems.  

(single stage)  

AC2 - Conventional  

Cooling 2  

(Two Stage)  

HP1 - Heat Pump 1  

(Single Stage)  

HP2 - Heat Pump 2  

(Two Stage)  

AC0 - No Cooling  

4

Indoor Equipment  

Configuration  

EL2  

GA1 - Gas 1  

(Single Stage)  

Configuration for the indoor equipment –  

either electric or gas (which also refers to  

oil, propane and boiler) heat systems.  

GA2 - Gas 2  

(Two Stage)  

EL1 - Electric 1  

(Single Stage)  

EL2 - Electric 2  

(Two Stage)  

FAN - Fan (No Heat)  

5

6

Reversing Value Position  

Configuration for the default reversing  

valve state. This is for the wire in the  

O - (o) – Energize in Cool  

B - (b) – Energize in Heat  

Z- (2) – Zone valve setting  

O

“

O/B” terminal. This is relevant for heat  

pumps, zone valves, and zone panel  

systems.  

ON  

On  

Wireless Radio  

Off  

Turns Wi-Fi Radio On/Off  

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Sensi Wi-Fi Programmable Thermostat | MANUAL OPERATION  

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Wiring Terminals  

See below for definitions of the wiring terminals on the sub-base of the thermostat.  

TERMINAL OUTPUTS AND WIRING DIAGRAMS  

Terminal Label  

Definition  

RH*  

RC*  

C**  

G

Power for heating, 24V  

Power for cooling, 24V  

Common wire, 24V  

Indoor blower (fan)  

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.  

Y2  

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

heat pump systems.  

W/E  

W2  

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

on heat pump systems.  

O/B  

L

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

Heat Pump system, “L” wire connection.  

*

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.  

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Sensi Wi-Fi Programmable Thermostat | MANUAL OPERATION  

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Back of the Face Plate  

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.  

MODEL NUMBER  

Illustrates whether you  

SENSI SECURITY  

CODE Necessary for  

connecting to Wi-Fi.  

Also found on a card  

in the packaging.  

purchased the professional  

or the DIY model.  

MAC ID  

RC/RH INTERNAL  

JUMPER WIRE  

Unique number  

that identifies  

the thermostat.  

Only clip this if you  

have separate RC  

and RH transformers  

coming out of  

DATE CODE  

When your thermostat  

was manufactured.  

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.  

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Sensi Wi-Fi Programmable Thermostat | MANUAL OPERATION  

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