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RC GRH YW2 W1A OBC
TYPICAL 24V, 4 WIRE, HEAT PUMP SYSTEMS
WITH 1 STAGE HEAT AND 1 STAGE COOL
FAN
SYSTEM
XFMR
HEAT
PUMP
UNIT
CHANGE-
OVER
VALVE
** Use either “O” or “B”
Terminal, Never Both
RC
R
5
G
F
Y
C*
6
O B C
Factory Supplied RH-RC
Jumper Wire Installed
Customer Supplied
Jumper Wire Installed
O
P
T
I
O
N
A
L
#6