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Bunn 34766.0000S manual Schematic Wiring Diagram, LCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2C

Models: 34766.0000S

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SCHEMATIC WIRING DIAGRAM

SCHEMATIC WIRING DIAGRAM
LCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2C	L1			RED-14
	L1
(Older models may not have the Master Sw. and/or 10 Amp Fuses)	BLK-14

N (120V 2-Wire)

L2 (208-240V 2-Wire)

TUBE

WARMER

TUBE

WARMER

TOUCHPAD

YES (+)

EXIT

NO (-)

LEFT RPM

SENSOR

RIGHT RPM

SENSOR

BLK-14

	BLK			Fuse 1	BLK
	BLK				BLK
	RED		10 AMP			UNIVERSAL
	RED					UNIVERSAL
	BLK				POWER SUPPLY
				BLK	-V	N(L2)	WHI
				RED	+V	L(L1)	BLK
					+V	L(L1)	BLK
							GRN
						-V	GRN
						-V	RED
						+V	RED
						+V

1

2

3

4

5

6

7

RED RED

BLK BLK

GRN BLU

RED RED

BLK BLK

GRN VIO

					MASTER ON/OFF					GRN
					SWITCH
		Early Models			LIMIT
		Early Models		THERMOSTAT
	TRIAC	SW. & THERMOSTAT	TANK HEATER	BLK-14 1	2
BLK-14	BLU-14	BLU-14	TANK HEATER	RED-14			RED-14
BLK-14	BLU-14	BLU-14		RED-14			RED-14
				3	4
					WHI	Fuse 1	WHI
					WHI		WHI
	TAN		PORTION			10 AMP
			CONTROL			10 AMP
			CONTROL					OVERFLOW
								OVERFLOW
								PROTECTION SW
							RED		RED	WHI/GRY
			DOOR
							WHI/GRY		RED/BLK
							RED	SOL	RED/BLK
								SOL

							HOT WATER
							RED	SOL	BRN/BLK
								SOL

RIGHT DISP

TAN BLK

WHI

RED GRN

BLK

WHI

GRY ORN BLK BLK

RED

SOL

BRN/WHI

J1-1

J1-4

J2-1

J2 -8

J15-1

J15-4

J3-1

WHI/BLU

LEFT DISP

RED

RED

BLU/BLK

WHI/RED

SOL

REFILL

J14-1

J3-6

BLK

C

J4-1

RED

RED/BLK

O

BRN/WHI

J14-7

BRN/BLK

N

VIO

J4-5

WHI/GRY

J7-1

T

BLK LEFT RED

PUMP

BLK RIGHT RED

PUMP

LF DISP. SW.

RT DISP. SW.

WHI/YEL

YEL

ORN

WHI/ORN

GRN

GRN

DISPENSERS WITH

PORTION CONTROL

S	J1-1	BLU/WHI
W		BLU/WHI

IRED/BLK

	T		GRN
	C	J1-5	ORN/BLK
	H		ORN/BLK
	H		GRN/WHI
	A		GRN/WHI
	A
	N		BLK
	D		BLK
	D		RED/WHI
	L		RED/WHI
	L		BLU/BLK
	E	J1-10	BLU/BLK
	D		RED

BGRN/BLK

OWHI/BLK

AORNR

D

J1-16	WHI

BLU

R

BLU/BLK

RED

J5-1

YEL

O

ORN

J7-5

L

J5-3

BLK

BLK

P

J16-1

BLU

RED

ORN

C

WHI/ORN

WHI/ORN

WHI/YEL

J7-10

B

WHI/YEL

J16-5

PNK

O

VIO

J8-1

BLK

A

BLK

J8-3

R

BLK

BLK ORN

J18-1

D

BLK

GRN

J16-12

BLK

1

P

BLK WHI

R

J18-6

WHI/YEL

BLK

WHI/ORN

BLK

O

B

E

LEFT

RIGHT

CONDUCTANCE

CONDUCTANCE

GRN

SENSOR

SENSOR

t

20

15

10

5

1

J6-

J6-

J6-

J6-

J6-

GRN GRN/WHI

BLU/WHI BLU/BLK ORN GRN/BLK WHI/BLK

WHI RED/BLK RED/WHI ORN/BLK WHI/GRY WHI/VIO WHI/YEL TAN RED

BLK

BLK VIO

RED WHI/BLU

WHI/RED

BLK

BLK BLU

BLK WHI

RED BLK

RED BLK

WHI WHI

RED

HEAT SINK

BLK

PELTIER

THERMISTOR

t

RED

BLK

SELECTOR

SELECTOR

COOLING CABINET

t

SWITCH

SWITCH

CABINET

NITE

WHI/GRY

RINSE

WHI/YEL

THERMISTOR

BLK

BLK

120 VOLTS AC 2 WIRE

120/208-240 VOLTS AC 3 WIRE

208-240 VOLTS AC 2 WIRE

SINGLE PHASE 50/60HZ

RUN	WHI/VIO	PRIME	TAN
RUN		PRIME
		BLK

LLC Models only

33	34766 062210

Image 33

Bunn 34766.0000S manual Schematic Wiring Diagram, LCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2C

Contents

LCA-2 LCA-2A LCA-2 PC LCC-2 INSTALLATION & OPERATING GUIDEBUNN-O-MATIC CORPORATION 34766.0000S 06/11 2002 Bunn-O-Matic CorporationBUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY INTRODUCTION CONTENTSCLEAN AIR FILTER USER NOTICESOptional Field Wiring CLEAN WEEKLYModels without Master ON/OFF Switch FIELD WIRING TERMINAL BLOCK DIAGRAMFIELD WIRING TERMINAL BLOCK DIAGRAM Models with Master ON/OFF Switch ELECTRICAL REQUIREMENTSINITIAL SET-UP PLUMBING REQUIREMENTSELECTRICAL HOOK-UP PLUMBING HOOK-UPSETTING DISPENSER FLOW RATE Removing the restrictorsReprogramming the Dispenser Flow Rate Dispense SELECTING THE CORRECT PUMP TUBINGRate 1.8 Oz/secOPERATING CONTROLS AND INTERFACE Operations INITIAL FILL & HEATFlavorGard Feature Rinse Alarm FeatureAlarm Mode Brew Temperature Lockout Feature BIB Empty Lockout FeatureMENU SCREEN PROGRAMMING THE DISPENSERACTION DESCRIPTIONLF DISP VOLUME 4.0oz + LF DISP VOLUME 0.0oz + RT DISP VOLUME 4.0oz + LF DISP VOLUME 4.0oz + RT DISP VOLUME 4.0oz +RT DISP VOLUME 0.0oz + WATER DISP VOL 0.0oz + WATER DISP VOL 0.0oz + MENU SCREEN LOCK FLAVOR ? EXIT YES FLAVORS LOCKED EXIT0GAL RESET? RT PRODUCT DISP 0GAL LF PRODUCT DISP 0GAL RESET? LF PRODUCT DISP 0GAL RT PRODUCT DISPENTER PASSWORD 0 + SET PASSWORD ? 0 + SELECT UNITS ENG EXIT METRIC see Rinse AlarmBIB EMPTY LOCKOUT NO EXIT YES BREW LOCKOUT ? NO EXIT YES MENU SCREEN RINSE TIME ? - 12 Hrs + RINSE LOCKOUT ? NO EXIT YESCAL LEFT PUMP ? PULL DISPENSE CAL LF WTR FLOW ? PULL DISPENSERCAL RT WTR FLOW PULL DISPENSER CAL RIGHT PUMP ? PULL DISPENSER CAL RT PUMP VOL - 43mL +CAL RIGHT SIDE ? EXIT YES CAL HOT WTR FLO ? PULL DISPENSE15SEC + WTR STOP DELAY 15SEC + TEST LED’S ? NO EXIT YES MENU SCREEN BIB EMPTY EXIT + XX REFILL - 155 - EXIT + WTR START DELAYTEST SWITCHES ? UseSwitchToTest TEST REFILL ? EXIT YES LATEST FAULT NO FAULTS FACTORY DEFAULTS NO YESPRIMING THE CONCENTRATE LINES LOADING THE CONCENTRATEOPERATING THE PULL & HOLD DISPENSER Filling Cambros or other large containerscoil is being operated OPERATING THE PRESET PORTION CONTROL DISPENSER Models LCA-2 PC, LCA-2C PC, LCA-2A PCFilling Cambros or other large containers General Cleaning and Sanitizing Procedures CLEANING & PREVENTATIVE MAINTENANCEDaily RINSING Daily PARTS WASHINGREPLACING THE PUMP TUBING PREVENTIVE MAINTENANCEDRAINING THE HOT WATER TANK Power LED “OFF” Troubleshootingsee Optional Field Wiring Front Panel LED Display MessagesInternal Fault Troubleshooting ContinuedLeft Refill LED “ON” Emoty BIB WarningPossible Cause Troubleshooting Continued Dispenser Diagnostics-LCD DisplayCheck Threshold, see Field Calibrating the Empty BIB WarningTroubleshooting Continued Screen DisplayedTroubleshooting Procedures Possible CauseService Troubleshooting ContinuedScreen Displayed Possible CauseCalibrating the Left Side Dispenser Field Calibration of the Concentrate Pumps / Dispenser Flow RatesField Calibrating the Hot Water Flow Rate ContinuedCalibrating the Right Side Dispenser Volume CollectedCalibrating The Empty BIB Threshold Field Calibrating the Empty BIB Warning120 VOLTS AC 2 WIRE 120/208-240 VOLTS AC 3 WIRE SCHEMATIC WIRING DIAGRAM208-240 VOLTS AC 2 WIRE SINGLE PHASE 50/60HZ LCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2C2 WIRE SCHEMATIC WIRING DIAGRAM LCC-2A/LCA-2A/LCA-2A, PCSINGLE PHASE 230 VOLTS AC