33
R
Y G W
CO
OL
IN
G
CO
NT
AC
TO
R
NOTE:
A FAULT CODE 20 WILL FLASH TO
INDICATE A TWINNING PROBLEM.
CONFIRM PROPER WIRING IF THIS
FAULT IS PRESENT.
TWINNING
CONTROL BOARDS
F
IG
U
R
E
2
8
U
T
E
L
E
C
T
R
O
N
IC
C
O
N
T
R
O
L
S
1
1
9
4
-2
0
0
C
O
N
T
R
O
L
B
O
A
R
D
, T
W
IN
N
IN
G
C
O
N
N
E
C
T
IO
N
–
S
IN
G
L
E
S
T
A
G
E
O
P
E
R
A
T
IO
N
THERMOSTAT
ST-A1194-25
1-STAGE
Tw
inn
ing
Summary of Contents for 801MSP Series
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