19
Do not use
K
terminal. For future use.
Leave jumper loop in place.
If your old thermostat had both
V
and
VR
wires, check wifithermostat.com 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 wifithermostat.com
for help. Attach the
O
wire to the
O/B
terminal. On the Type of Changeover Valve
screen, select Cooling Changeover Valve. See page 69. 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
wifithermostat.com 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.
Installing your thermostat
Alternate wiring key (Heat Pump System)
2
3
1
4
6
5
7
