Page 4.4
4
Air Conditionin
g
& Heatin
g
6 Conductor 18 gauge
unshielded cable from the
thermostat to the equipment.
Residential Heat Pump with O Reversing
Valve 1 Stage Cooling, with 2 stage Heat
6 Wire, 1 Stage Cooling, 2 Stage Heat
HP
GAS
B
O
ELEC
GAS
(F
A
N
)
24 vac return
fan relay
compressor relay
Reversing Valve
O
W
2
G
R
C
Y
1
24 vac common
2nd stage heat circuit
4
Y1
G
R
C
W1/O/B
RS+5
RSGND
W2
OUT
HP
GAS
B
O
ELEC
GAS
(F
A
N
)
H
U
M
N
O
H
U
M
W1
Y1
G
R
C
W2
OUT
RSGND
RS+5
CTRL
