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28170.0003A 9/99 © 1999 BUNN-O-MATIC CORPORATION
120 VOLTS AC 2 WIRE
120/208 VOLTS AC OR
120/240 VOLTS AC 3 WIRE
SINGLE PHASE
PROBE
PIN-20
BLUBLK
BLK
WHI
SOL
WHI
WHI
OVERFLOW
PROTECTION SW
RED RED
READY INDICATOR
SCHEMATIC WIRING DIAGRAM
SINGLE BREWER SH
BLU
L1
GRN
N
RED-12 (208 OR 240V)
BLK-12 BLK-12
K1
N.O.
BLK-12
L2
WHI-12 (120V)
RED-12 (208 OR 240V)
WHI-12 (120V)
BLK
GRINDER
INTERFACE
CONNECTOR
FRACTIONAL BATCHES
(CONNECT
AS REQUIRED)
FULL BATCH
(NO CONNECTION)
TAN
GRY
PNK
WHI/VIO
1/4 BATCH
1/3 BATCH
1/2 BATCH
2/3 BATCH
3/4 BATCH
BATCH COMMON
S
E
L
E
C
T
O
R
S
W
WHI/ORA
WHI/GRN
WHI/YEL
WHI/RED
1
2
3
4
5
BREW
TIMER
WHI
WHI/VIO
WHI
WHI
WHI/VIO
WHI/GRN
WATER
BYPASS VALVE
WHI/RED
WHI/VIO
REFILL VALVE
4
3
2
1
TANK HEATER
K1
K1
N.O.
SW. & THERMOSTAT
1
2
3
4
LIQUID
LEVEL
BOARD
SOL
DISPENSE
VALVE
START
SWITCH
SOL
ON/OFF
SWITCH
+
–
AC
AC
RECTIFIER
4
AMP
TRANSFORMER
RED
BLK
BLU/BLK
BLU/BLK
BLK
12
1
2
5
6
7
WHI
WHI
Front view of Brewer
Server Connector
24VDC
+
–
+
–
GRY
TAN
PNK
TANK HEATER
CONTACTOR
CIRCUIT
BREAKER
LIMIT THERMOSTAT
BLU/BLK
VIO
N.O.
N.C.
N.C.
(After S.N. SNG0014000)
28230 092200