Manuals / Bunn / Kitchen Appliance / Beverage Dispenser

Bunn service manual Schematic Wiring Diagram, LCR-3HV

Models: LCR-3

1 27

Download 27 pages 23.12 Kb

Page 27

SCHEMATIC WIRING DIAGRAM

			L1	L2		L3		N
DISPENSER REQUIRES
120VAC L1 TO N	TERMINAL										GRN
	TERMINAL										GRN
	BLOCK
		BLK-12		RED-12	BLU-12		WHI		WHI
• FOR 3 PHASE OPERATION, WIRE AS SHOWN.		BLK-12		RED-12	BLU-12		WHI		WHI
• 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
	YES (+)	4
		4
	EXIT	5
	EXIT	6
	NO (-)	6
	NO (-)	7
		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			ORN
				WHI/ORN
MIDDLE RPM			RED	RED/BLK
MIDDLE RPM			BLK	BLK
	SENSOR		GRN	GRN
BLK	MID.	RED
	PUMP			WHI/YEL

WHI/RED

	AUXILLARY CONTROL BOARD

	BLK				RELAY			BLK
	BLK				RELAY
RED										GRN

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

LEFT RPM	RED	WHI/GRY
LEFT RPM	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

Image 27

Bunn service manual Schematic Wiring Diagram, LCR-3HV

Contents

41129.0000H 06/11 2008 Bunn-O-MaticCorporation INSTALLATION & OPERATING GUIDELCR-3HV BUNN-O-MATICCORPORATIONBUNN-O-MATICCOMMERCIAL PRODUCT WARRANTY INTRODUCTION CONTENTSDo not connect to a circuit operating at USER NOTICESMoving Parts 00824.0002 more than 150 volts to groundFIELD WIRING TERMINAL BLOCK DIAGRAM ELECTRICAL REQUIREMENTSPLUMBING REQUIREMENTS LEVELING THE DISPENSER INITIAL SET-UPELECTRICAL HOOK-UP PLUMBING HOOK-UPAlternate Evaporator Drain DRIP TRAY INSTALLATIONINSTALLING THE PUMP TUBING Optional Drip Tray DrainOPERATING CONTROLS AND INTERFACE INITIAL FILL & HEAT Alarm Mode Rinse Alarm FeatureRinse Procedure Alarm LevelOptional 2- Product Operation BIB Empty Lockout FeatureBrew Temperature Lockout Feature Energy Saver Mode384.0oz + RT DISP VOLUME 36.0oz + RT DISP VOLUME LF DISP VOLUME 36.0oz + LF DISP VOLUME 192.0oz +LF DISP VOLUME 384.0oz + MID DISP VOLUME 36.0oz + MID DISP VOLUME 192.0oz + MID DISP VOLUMEREADY TEMP EXIT + CABINET TEMP EXIT + ENTER PASSWORD 0 + SET PASSWORD ? 0 +PROGRAMMING Continued LCD DISPLAYE-SAVERTANK TEMP NO EXIT LCD DISPLAY BibEMPTY LOCKOUT NO EXIT YESBREW LOCKOUT ? NO EXIT YES ENERGY SAVER MODE NO EXIT YES E-SAVERIDLE TIME 4 HRS +CAL RT PUMP VOL -58mL + ACTIONDESCRIPTIONCAL LEFT PUMP ? LEFT CAL MIDDLE PUMP ? MIDDLE CAL MID PUMP VOL 58mL +TEST REFILL ? EXIT YES TEST HEATER ? EXIT YES WTR START DELAY 15SEC+ WTR STOP DELAY 15SEC+LATEST FAULT NO FAULTS FACTORY DEFAULTS NO YES LCD DISPLAY XXOVERFLOW EXIT +PRIMING THE CONCENTRATE LINES LOADING THE CONCENTRATEFILLING CAMBROS OR OTHER LARGE CONTAINERS OPERATING THE DISPENSERTo Dispense Coffee To Dispense Hot WaterDaily RINSING & CLEANING CLEANING & PREVENTATIVE MAINTENANCEPREVENTIVE MAINTENANCE General Cleaning and Sanitizing ProceduresRemove Tubing REPLACING THE PUMP TUBINGInstall New Tubing Remove Retaining Plate Release Spring TensionDRAINING THE HOT WATER TANK Possible Cause TroubleshootingTroubleshooting Procedures to Field Calibration Procedurespump indicated is out of range Troubleshooting ContinuedScreen Displayed TOO LOWPossible Cause Troubleshooting ContinuedCHECK WIRE FOR SHORTS Screen DisplayedDispenser Flow Rate Calibration Calibrating the Left Concentrate PumpField Calibrating the Empty BIB Warning LCR-3HV SCHEMATIC WIRING DIAGRAM