Bunn DUAL - Dual Brewer A & B Wiring Diagram (Two-Grinder Interface)

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R
T
S
E
L
E
C
T
O
R
S
W
VIO
PROBE
PIN-20
1
4
3
2
LIQUID
LEVEL
BOARD
BLU
K1
RED
SOL
RED
RED
SW. & THERMOSTAT
READY INDICATORS
OPTIONAL
RECOVERY BOOSTER
BLKBLU
K2 N.O. K3 N.O.
RED
SCHEMATIC WIRING DIAGRAM DUAL-A & -B BREWER
(W/TWO-GRINDER INTERFACE)
GRN/YEL
RED-12
K1
N.O.
BLU
TANK HEATERS (TWO)
1/4 BATCH
1/3 BATCH
1/2 BATCH
2/3 BATCH
3/4 BATCH
BATCH COMMON
FRACTIONAL
BATCHES
(CONNECT
AS REQUIRED)
FULL BATCH
(NO CONNECTION)
TAN
GRY
PNK
GRINDER
INTERFACE
CONNECTOR
GRY
TAN
PNK
4
1
2
3
WHI/VIO
OPTIONAL 3-SET SELECTOR SWITCHES SHOWN
WITH TWO-GRINDER INTERFACE OPTION
L2
200 OR 240 VOLTS AC
2 WIRE
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
GRINDER
INTERFACE
CONNECTOR
GRY
TAN
PNK
4
1
2
3
L
T
S
E
L
E
C
T
O
R
S
W
RED
WHI/ORA
WHI/VIO
WHI/GRN
WHI/YEL
RED
WHI/RED
WHI/GRN
1
RIGHT
BREW
TIMER
3
2
4
5
SOL
RED
ORA
WHI/RED
WHI/BRN
YEL
RED
WHI/RED
WHI/GRN
SOL
WATER
BYPASS
WATER
BYPASS
1
LEFT
BREW
TIMER
3
2
4
5
LEFT SW.
RIGHT SW.
WHI/VIO
SOL
K3
OPTIONAL
RECOVERY BOOSTER
WHI/RED
WHI/BRN
SOL
K2
OPTIONAL
RECOVERY BOOSTER
WHI/VIO
WHI/GRN
WHI/RED
RED
WHI/VIO
RED
100W WARMER
(NOT AVAILABLE ON
DUAL-TF)
100W WARMER
(NOT AVAILABLE ON
DUAL-TF)
BLK
OVERFLOW
PROTECTION SW
RED RED
L1
RED-12
RED-12
K1
N.O.
BLK-12
BLK-12
BLK-12BLK-12
BLK
START SW.
START SW.
LIMIT THERMOSTAT
27040 062200