<p>Professional Contractor
INSTALLATION GUIDE
37-7498
Exit
Next
Setup
Indoor
Exit
Next
Wireless Setup
Connect
3 EASY STEPS
1. Install on the wall
2. Configure for HVAC system
3. Connect to Wi-Fi
Connect Wi-Fi now or homeowner connects later
Installing Sensi thermostat isn’t that different than
installing a non Wi-Fi thermostat.
Terminal Cross Reference
Old
Sensi
Conventional
thermostat...
thermostat…
RC
RC*
Power for cooling
RH, R
RH*
Power for heating
C, X, B**
C
Common wire
W, W1, W/E
W/E
1st stage indoor heat
W2
W2
2nd stage indoor heat
Y, Y1
Y
1st stage outdoor cool
Y2
Y2
2nd stage outdoor cool
G
G
Fan
*
If the old thermostat has
separate RC and RH wires,
clip the RC/RH jumper on
the back of the thermostat.
** Label “B” as “C” only if
the old thermostat also
had a wire on “O”.
If there is no wire on
“O” – label the wire “B”.
Back of new thermostat
1. INSTALL on the wall
For Conventional Systems
Terminal Cross Reference
Old
Sensi
Heat Pump
thermostat…
thermostat…
RC
RC*
Power for cooling
RH, R
RH*
Power for heating
C, X, B**
C
Common wire
W, W1, W/E,
W/E
1st stage aux/
Aux/E, E
emergency heat
W2***
W2
2nd stage aux/
emergency heat
Y, Y1
Y
1st stage compressor
Y2
Y2
2nd stage compressor
G
G
Fan
O, B**, O/B
O/B
Heat pump
changeover valve
L
L
Heat pump diagnostic
*
If the old thermostat has separate RC and RH wires, clip the RC/RH jumper
on the back of the thermostat.
** Label “B” as “C” only if the old thermostat also had a wire on “O”.
If there is no wire on “O” – label the wire “B”.
*** On Heat Pump systems with separate W2 and E wires, label both wires W/E
(2 wires on one terminal).
For Heat Pump Systems
Exit
Next
Setup
Indoor
Exit
Next
Setup
Indoor
Room Temperature
Set To
Heat Off Cool
Auto On
On Off
Exit
Next
Wireless Setup
Connect
2. CONFIGURE for HVAC system
For HVAC System Type
A. Press Menu to enter
configuration menu.
B. Press Next until you see
“Setup Outdoor” menu
item 3.
C. Use Up/Down