Bunn LCR-3 service manual Schematic Wiring Diagram

			L1	L2		L3		N
DISPENSER REQUIRES
120VAC L1 TO N	TERMINAL									GRN
	BLOCK
		BLK-12		RED-12	BLU-12		WHI		WHI
• FOR 3 PHASE OPERATION, WIRE AS SHOWN.
• FOR SINGLE PHASE OPERATION, MOVE BLU
WIRE INTO CELL WITH BLK WIRE.

MAIN ON/OFF

SWITCH

BLU-12

	SCHEMATIC WIRING DIAGRAM	LCR-3 HV
WHI	RED

BLK

TAN

	RED	RED
RIGHT RPM	BLK	BLK
SENSOR	GRN	GRN

RED-12

BLK-12

RED WHI

POWER SUPPLY

N(L2) WHI

L(L1) BLK

GRN

-V GRN +V RED

TOUCHPAD

	1
	2
YES (+)	3
	4
EXIT	5
	6
NO (-)
	7

BLK-12

BLK-12

LIMIT #1

BLK-12

TANK HEATER #1

LIMIT #1

RED-12

RED-12

L1

T1

4

3

2

1

LIMIT #2

TANK HEATER #2

LIMIT #2

RED-12

L2

RED-12

RED-12

BLU-12

BLU-12

T2

4

3

2

1

BLU-12

BLU-12

LIMIT #3

BLU-12

TANK HEATER #3

BLK-12

LIMIT #3

L3

BLK-12

T3

4

3

2

1

WHI

TAN

RED

BLK

CONTACTOR

EMI FILTER

DOOR

YEL

SOL

BRN/BLK

MAIN

TAN BLK

RED

RED GRN

BLK

WHI

GRY

BLK

YEL

SOL

BRN/WHI

J1-1

J1-4

J2-1

J2-8

J15-1

J15-4

J3-1

WHI/BLU

MANIFOLD

RED

YEL

BLU

WHI/RED

SOL

REFILL

J14-1

J3-6

BLK

C

J4-1

YEL

WHI/BLU

RED/BLK

O

BRN/WHI

J14-7

BRN/BLK

N

RED WHI/BLU

J4-5

GRN

J7-1

T

BLU

BLU

RED

R

J5-1

YEL

O

RED/BLK

ORN

J7-5

L

J5-3

BLK

BLK	RIGHT	RED		ORN
	PUMP
				WHI/ORN
MIDDLE RPM			RED	RED/BLK
			BLK	BLK
	SENSOR		GRN	GRN
BLK	MID.	RED
	PUMP			WHI/YEL

WHI/RED

	AUXILLARY CONTROL BOARD
	BLK	RELAY		BLK
RED					GRN
	J2-1		J1-1
BLK					GRN
WHI/YEL					WHI/RED
RED/BLK					BLU/BLK
YEL	J2-5		J1-5		TAN
RED
BLU					RED/BLK
					WHI/GRY
WHI/BLU	J2-8
					BLK
TAN			J1-10		BLK
	J3-1				WHI/YEL
BLK	J3-2		J1-12

LEFT RPM	RED	WHI/GRY
	BLK	BLK
SENSOR	GRN	GRN
BLK LEFT	RED
PUMP		WHI/YEL

BLU/BLK

208-240 VOLTS AC

3 WIRE + GND

SINGLE PHASE 60HZ

or

208-240 VOLTS AC

4 WIRE + GND

THREE PHASE 60HZ

41172.0000C 10/08 © 2008 BUNN-O-MATIC CORPORATION

BLK

P

J16-1

BLU

RED

RED

ORN

C

WHI/ORN

WHI/ORN

RED/BLK

WHI/YEL

J7-10

B

WHI/YEL

J16-5

PNK

J8-1

O

BLK

A

BLK

J8-3

R

WHI/ORN

WHI/GRN

J18-1

D

BLK

PNK

GRN

BLK ORN

J16-12

O P

L P

J18-5

WHI/YEL

BLK

V R

E R

1

J17-1

E O

V O

WHI/GRN

YEL

RED BLU BLK

R B

E B

J18-7

F E

L E

BLK WHI

CONDUCTANCE

L

J18-9

BLK

SENSOR

O

J17-4

RED BLU BLK

W

20

15

10

5

1

J6-

J6-

J6-

J6-

J6-

GRN

t

WHI/BLU GRY

TAN PNK

WHI/BLU WHI/YEL

RED/BLK

ROTARY

WHI/RED BLK

SWITCH

A

PNK

BLU BLK

BLK YEL

1

2

2

GRY

1

2

1

TAN

3

SELECTOR

EVAPORATOR FAN

B

SWITCH

WHI/YEL

EVAPORATOR

RINSE

t

t

WHI/BLU

RUN

CABINET

EVAPORATOR

PRIME

RED/BLK

SENSOR

SENSOR

RED

K2

LIMIT

THERMOSTAT

COMP.

K2

COMPRESSOR ASSEMBLY

GRN

RED

CONDENSER FAN

BLK

CONDENSER

REFRIGERATION CABINET

27 41129 110608