3, 4 WIRES
Factory RH-RC Jumper Wire Installed
O
B
G
G
F
FAN
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
1-STAGE, COOLING ONLY
Y
RC
RH
W1
Y
R
Y1
RC
6
V
SYSTEM COMMON
SYSTEM 24V
TRANSFORMER
A
W2
C
C
X
B*
O
P
T
I
O
N
A
L
AIR
CONDITIONER
#3