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4, 5 WIRES
CONVENTIONAL (NON HEAT PUMP)
1-STAGE HEATING AND 1-STAGE COOLING
O
B
Y
Y
Y1
6
AIR
HEATER
CONDITIONER
BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
SINGLE-STAGE HEAT PUMP SYSTEM
4, 5 WIRES
WITH NO AUX OR EMERGENCY HEAT
** Use "O" or "B"
ADD Y-W Jumper Wire
Terminals, Never Both
O
B
Y
O
Y
B
Y1
6
REVERSING
HEAT
VALVE
PUMP
BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
5, 6 WIRES
1-STAGE HEATING AND 1-STAGE COOLING
WITH TWO SEPARATE 24V TRANSFORMERS
Factory RH-RC Jumper Wire REMOVED
O
B
Y
Y
Y1
6
AIR
HEATER
CONDITIONER
BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
Factory RH-RC Jumper Wire Installed
W
RH
RC
G
W
R
G
RH
W1
F
4
V
24V
FAN
POWER
Factory RH-RC Jumper Wire
W
RH
RC
G
R
G
RC
F
V
24V
POWER
W
RH
RC
G
W
RH
RC
G
W1
R
R
F
4
V
V
24V HEAT
24V COOL
POWER
POWER
3
C
X
COMMON
4
C
X
COMMON
FAN
5
C
X
COMMON
FAN
8
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