Repair manual

Page 48
34839.0003C 09/06 © 2005 Bunn-O-Matic Corporation
400-415 VOLT A.C.
PHASE TO PHASE,
230 VOLTS AC
PHASE TO NEUTRAL
3 PHASE 50/60 HZ
RED
RED
RED
RED
RED
REDRED
L2 L1 L4 L5 L6 L7 L8 L3
SWITCH UNIT ASSY
C6 C5 C4 A4 B2 A3 B1 A2
D3
A1
D2
C3
D1
C2 C1
SHIELD
1
LEFT
FUNNEL SENSOR
RIGHT
FUNNEL SENSOR
J9-1
VIO
WHI
PNK
BLK
GRN
TEMP PROBE
WATER LEVEL
PROBE
A1 Left Brew
A2 Left On/Off
A3 Right On/Off
A4 Right Brew
B1 "Hidden" Left
B2 "Hidden" Right
C1 Left Large Batch
C2 Left Medium Batch
L1 Left Large Batch LED
L2 Left Medium Batch LED
L3 Left Small Batch LED
L4 Left On/Off LED
L5 Right On/Off LED
L6 Right Large Batch LED
L7 Right Medium Batch LED
L8 Right Small Batch LED
C3 Left Small Batch
C4 Right Large Batch
C5 Right Medium Batch
C6 Right Small Batch
D1 "Digital" Left Hidden Button
D2 "Brewer" Center Hidden Button
D3 "Control" Right Hidden Button
YEL
WHI/VIO
WHI/YEL
J9-5
CONTROL PC BOARD
J2-1
J2-5
J2-10
Switch Unit Assembly Codes
LED's
20
VIO
WHI/ORA
WHI/GRN
ORA
GRY
YEL
BLK
RED/BLK
BRN/WHI
BRN/BLK
BLU
BLU/BLK
SOL
SOL
SOL
SOL
SOL
BREWER
ON/OFF
SWITCH
REFILL
R. BYPASS
L. BYPASS
R. BREW
L. BREW
J4-19 J4-15 J4-10
J4-5J4-5 J4-1
J11-1
J11-5
J11-10
J11-18
RED RED
SOL
SOL
N.C.
OVERFLOW
PROTECTION SWITCH
L. FUNNEL LOCK
R. FUNNEL LOCK
RED
RED
SCHEMATIC WIRING DIAGRAM
DUAL TF DBC, CE 3 PHASE W/NEUTRAL
TANK HEATER #2
TANK HEATER #1
BLK
BLK
BLK-14
LIMIT THERMOSTAT #2 (1/2)
LIMIT THERMOSTAT #1 (1/2)
RED
RED
RED
RED
BLU
BRN
BLU
BLU
BRN
BRN
RED
TANK HEATER #3
LIMIT THERMOSTAT#3 (1/2)
RED
- LINE
- LOAD
BLK
GRN
CONTACTOR
EMI FILTER
L1
L1
L2
L2
L3
L3
N
L1 L2 L3 N
N
TANK LID ASEMBLY
BLK RED BRN BLU
TERMINAL BLOCK
THERMOSTAT #1 (1/2)
THERMOSTAT #2 (1/2)
THERMOSTAT #3 (1/2)
Wire as shown for 3 phase. For single
phase operation, move red wire in
terminal block into cell with black wire;
apply power across L1 & N.
21
21
21
3
3
3
4
4
4
RED/BLK
HEATER
#1
#2
HEATER
#1
LIMIT
#3
#2
LIMIT
HEATER
LIMIT
#3
21
43
21
43
21
43
BLK
RED
2.2uF
White Strip-Tac Plus
Black Ink
Finished Size: 8" x 10.75
~78% Reduction
41746 112008