Bunn Dual Service Manual page 62

SCHEMATIC WIRING DIAGRAM
L1
LIMIT THERMOSTAT
BLK-12 BLK-12
K1
N.O.
OVERFLOW
PROTECTION SW
BLK RED RED
N.C.
BLK
OPTIONAL 3-SET SELECTOR SWITCHES SHOWN
WITH ONE-GRINDER INTERFACE OPTION
ORN BLU
FRACTIONAL BATCHES
(CONNECT
AS REQUIRED)
FULL BATCH
(NO CONNECTION)
YEL
R
T
WHI/VIO
S
E
WHI/RED
L
GRINDER INTERFACE
E
CONNECTOR
C
GRY
T
PNK
O
R
TAN
S
W
GRY
PNK
TAN
L
BLU
T ORN
FRACTIONAL BATCHES
(CONNECT
S
AS REQUIRED)
E
FULL BATCH
L
(NO CONNECTION)
YEL
E
C
T
O
WHI/VIO
R
WHI/RED
S
W
BLU/BLK
BLK
12
1
2 11
BLK RESETTABLE
FUSE
5 8
RED
BLU/BLK
6 7
LEFT TRANSFORMER
230 VOLTS AC
2 WIRE + GRD
SINGLE PHASE
DUAL SH, 230V CE
THERMAL
SAFETY FUSE
BLK-12
TANK HEATERS (TWO)
BLK-12
READY INDICATORS
SW. & THERMOSTAT
BLU
OPTIONAL
RECOVERY BOOSTER
BLU RED BLK
K2 N.O. K3 N.O.
BLU
WHI/VIO
1
RED
RIGHT
2
WHI/ORA
BREW
3
WHI/GRN
1/4 BATCH
TIMER
4
1/3 BATCH
WHI/YEL
5
1/2 BATCH
2/3 BATCH
3/4 BATCH
BLK
BATCH COMMON
RIGHT WATER
BYPASS
WHI/GRN
SOL
WHI/RED
ON/OFF
RED
4
GRY
3
PNK
2
WHI/VIO
TAN
1
RIGHT SWITCH
GRIND
ON/OFF
RED
SELECTOR
SWITCH
WHI/RED
LEFT SWITCH
1/4 BATCH
1
RED
1/3 BATCH
LEFT
2
1/2 BATCH
ORA
BREW
3
2/3 BATCH
WHI/BRN
TIMER
4
YEL
3/4 BATCH
5
BATCH COMMON
LEFT WATER
BYPASS
WHI/GRN
SOL
WHI/RED
BLU/BLK
4
AMP
BLK
AC
–
CIRCUIT
RECTIFIER
BREAKER
+
AC
RED
+
–
24VDC
– +
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Server Connector
28218.0001E 11/06 ©1997 BUNN-O-MATIC CORPORATION
Page 62
NOT A PURCHASED SCHEMATIC
GRN/YEL
THERMAL
SAFETY FUSE
RED-12
RED-12
RED-12
K1
N.O.
TANK HEATER
CONTACTOR
BLK
K1
VIO
1
LIQUID
BLU
2
LEVEL
3
BOARD
PIN-20
4
SOL
RIGHT START
SWITCH
RIGHT
DISPENSE
N.C.
BLK
WHI/GRN
N.O.
OPTIONAL RECOVERY BOOSTER
LEFT START
SWITCH
N.C.
BLK
BLK
N.O.
YEL
ORA
WHI/RED
LEFT
DISPENSE
SOL
WHI/BRN
WHI/RED
K3
OPTIONAL RECOVERY BOOSTER
BLK BLU/BLK
BLU/BLK
4
1
12
AMP
CIRCUIT
2 11
BREAKER
BLK RESETTABLE
FUSE
5 8
RED BLU/BLK
7
6
RIGHT TRANSFORMER
L2
RED
REFILL
RED
SOL
RED
PROBE
RED
WHI/VIO
K2
RED
RED
BLK
RED
OPTIONAL
TUBE WARMER
BLK
AC
–
RECTIFIER
+
AC
RED
+
–
24VDC
– +
Front view of Brewer
Server Connector
41976 031709