RC
RH
V
R
Y1
6
Y
X
B*
C
W3
W1
W
W2
F
G
O
W1
A
Y2
O
B
W2
C
G
Y1
RC
RH
2-HEAT / 1-COOL, HEAT PUMP SYSTEM
WITH AUX AND EMERGENCY HEAT
#8
FAN
SYSTEM 24V
TRANSFORMER
REVERSING
VALVE
AUX / EMERG.
HEAT
SYSTEM COMMON
HEAT PUMP
5, 6 WIRES
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
O
P
T
I
O
N
A
L
** Use “O” or “B” Terminals,
Never Both
Factory RH-RC Jumper Wire Installed
CUSTOMER INSTALLED Y1-W1 Jumper Wire
15
