13
RC
G
RH
Y
W2
W1
A
OB
C
TYPICAL 24V
, 4 WIRE, HEA
T PUMP SYSTEMS
WITH 1 ST
AGE HEA
T AND 1 ST
AGE COOL
FA
N
SY
STEM
XFMR
HEA
T
PUMP
UNIT
CHANGE-
OV
E
R
VA
LV
E
** Use either “O” or “B”
T
e
rminal, Never Both
RC
R
5
G
F
Y
C*
6
O
B
C
Factor
y Supplied RH-RC
Jumper Wire Installed
Customer Supplied
Jumper Wire Installed
O
P
T
I
O
N
A
L
#6