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69-2715EF—07 8
Installing your thermostat
Alternate wiring (Heat Pump System)
Use this if your wire labels
don’t match the terminal labels.
Note: You must have a C wire
or equivalent. See page 5.
MCR34542
C
R
O
Y
G
3
1
C
K
Rc
R
W-
O/B
Y
G
W2-
Aux/E
Y2
L
4
5
6
AUX
XX2
Y2
2
B
7
X
B
Rc
R
V
VR
2
L
F
WW1
W2
Do not use K terminal. For future use.
Leave jumper loop in place.
If your old thermostat had both V and VR wires, check honeywellhome.com/
wifi-thermostat for help.
If your old thermostat had separate O and B wires, attach the B wire to the C
terminal. If another wire is attached to the C terminal, check honeywellhome.
com/wifi-thermostat for help. Attach the O wire to the O/B terminal. On the
Type of Changeover Valve screen, select Cooling Changeover Valve. See page
28. If your old thermostat had an O wire and not a B wire, attach the O wire
to the O/B terminal.
If your old thermostat had separate Y1, W1, and W2 wires, check
honeywellhome.com/wifi-thermostat for help.
If the old thermostat has separate wires on Aux and E, use a wire nut to attach
both wires to a separate wire. Slide this third wire into the W2-Aux/E terminal.
This is the system monitor. If the monitor finds a problem, you will see an
orange alert button on the thermostat home screen.
Alternate wiring key (Heat Pump System)
2
3
1
4
6
5
7
7 Attach thermostat to wallplate.
Align the thermostat with the
wallplate and then snap into
place.
Thermostat
Wallplate
LEVEL
HERE
M34498
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