O/B
Y
Rc
Rh
W1
W2
C
2
3
4
2
3
4
2
3
4
Heat Pump Systems
Heat Only Systems
as-is in your furnace and connect it to the W2
block on your new thermostat.
please call
. Snap the orange
your thermostat.
as-is in your furnace and connect it to the W2
block on your new thermostat.
block on
your control board. Do not connect the Power
control board.
. Snap the orange
your thermostat.
this
system - do not connect it to your control board.
. Snap the
thermostat.
connect the
on your control board. Relabel the yellow tab on
the Power Bridge's Y wire with one of the
. You will not use the
. Snap the
thermostat.
Thermostat Furnace
O
Y
R
W1
W2
C
O
Y
R
W1
W2
C
O
Y
R
W1
W2
C
O
Y
G
R
W1
W2
C
O
Y
G
R
W1
W2
C
O
Y
G
R
W1
W2
C
O
W2
Power Bridge
Power Bridge
Power Bridge
Power Bridge
G
O/B
Y
Rc
Rh
W1
W2
C
G
O/B
Y
Rc
Rh
W1
W2
C
G
O/B
Y
Rc
Rh
W1
W2
C
G
O/B
Y
Rc
Rh
W1
W2
C
G
O/B
Y
Rc
Rh
W1
W2
C
G
O/B
Y
Rc
Rh
W1
W2
C
G
O/B
Y
Rc
Rh
W1
W2
C
G
Y
C
G
R
W
Y
C
G
R
Y
C
G
R
Y
C
G
R
W
Designed in Philadelphia
P: 856.234.7905
Current Wiring:
(1)
G
(1)
(1)
(1)
O
Y
G
R
W1
W2
C
G
W
W
Notes:
System:
Y
G
R
W1
C
Y
W
R
G
Y
R
G
Y
R
G
W
R
G
Thermostat Air Handler
Thermostat Air Handler
Thermostat Furnace
2
3
4
Thermostat Furnace
Thermostat Air Handler
Thermostat Air Handler
Thermostat Furnace
Wiring Diagrams
1
1
1
1
O/B
G