NSi ST75S Thermostat ouchscreen Color Display, Programmable, Wi-Fi, Mobile App, Easy DIY, Data Privacy, Works

Installation guide - Page 5

For ST75S. Also, The document are for others NSi models: 1F95U-42WF SERIES, ST75 SERIES, NH-AWIFI, OH-AWIFI

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Sensi Touch Smart Thermostat | INSTALLATION GUIDE 5
Turn Off Power
Turn off the power to your heating and air conditioning
system before handling your thermostat wires.
Remove Old 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.
Photograph Your Wiring
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.
Throw Away Any Jumper Wires
Sensi has a jumper wire built into it, and you will
not need any jumper wires from your old unit.
Choose Wire Terminals
Choose the terminal labels that have wires attached
to them on your old thermostat here. The app will
tell you if you have a valid configuration.
If you are getting an invalid configuration message you can learn
more about compatibility at sensi.emerson.com/en-us/compatibility.
Sensi Touch requires a c-wire.
System Type
Select what type of system you have.
Turn Off Power
9:41
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Install
Video: How to turn off power
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Next
Turn off the power to your heating and air
conditioning system by using your fuse box
or the switch next to your furnace.
Confirm power is OFF. Try to turn on heating or cooling
by changing the temperature on your old thermostat.
CAUTION
9:41
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Install
Video: How do I remove my old thermostat cover?
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Next
Remove the thermostat cover by using a
screwdriver or by pushing the pressure latch.
Some covers will pull off easily, others may
need to be released using a screwdriver.
Do not remove your wires yet
Dismiss
Take a photo of your wiring
9:41
Cancel
Install
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Next
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.
Throw away any jumper wires
9:41
Cancel
Install
If you see a jumper wire, remove it. Your new
thermostat has the jumper wire built in.
Leave all other wires connected to the
thermostat.
Video: What to do if you have a jumper wire
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Next
Pick terminals with wires attached
9:41
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Install
R
C
X
W
W1
W/E
Y
Y1
G
RH
RC Y2
L
AUX
B
O/B
O
Other
W2
E
Previous
Next
Video: How do I Pick my wires?
Select furnace type
9:41
Cancel
Install
Previous
Next
Video: What is my furnace type?
Gas
Electric
Boiler / Radiant
INSTALLING THE SENSI THERMOSTAT
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