Bunn LCA-2 PC, LCA-2A Schematic Wiring Diagram, LCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2C

Page 35

SCHEMATIC WIRING DIAGRAM

LCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2C

(Older models may not have the Master Sw., 10 Amp Fuses or Product Cabinet Fan)

L1

BLK-14 RED-14

N (120V 2-Wire)

L2 (208-240V 2-Wire)

 

 

 

 

 

 

 

 

 

 

MASTER ON/OFF

 

 

GRN

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

 

BLK-14

 

 

 

 

 

 

 

 

LIMIT

 

 

 

 

 

 

 

 

 

 

 

Early Models

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THERMOSTAT

 

 

 

 

 

 

 

 

 

 

TRIAC

SW. & THERMOSTAT

TANK HEATER

BLK-14 1

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK-14

BLU-14

BLU-14

RED-14

 

RED-14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

4

 

 

 

 

 

BLK

Fuse 1

BLK

 

 

 

 

 

WHI

Fuse 1

WHI

 

 

TUBE

 

 

 

 

 

 

 

 

 

 

10 AMP

 

 

 

TAN

 

PORTION

 

10 AMP

 

 

 

WARMER

RED

 

UNIVERSAL

 

 

CONTROL

 

 

 

 

 

 

 

 

 

 

OVERFLOW

 

 

BLK

 

POWER SUPPLY

 

 

 

 

 

 

 

 

TUBE

 

 

 

 

 

 

 

 

 

 

 

PROTECTION SW

 

 

 

 

 

 

 

 

 

 

 

 

RED

RED

WHI/GRY

WARMER

 

BLK

 

 

WHI

 

 

 

 

 

 

 

-V

N(L2)

 

 

DOOR

 

 

 

 

 

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

+V

L(L1)

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/GRY

 

 

PRODUCT

 

 

 

 

GRN

 

 

 

 

 

RED/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

CABINET

BLK

 

 

-V

GRN

 

 

 

 

 

RED

SOL

 

 

 

 

 

 

 

 

 

 

FAN

RED

 

 

+V

RED

 

 

 

 

 

 

HOT WATER

 

 

TOUCHPAD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

SOL

BRN/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RIGHT DISP

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES (+)

3

 

 

 

 

 

TAN BLK

WHI

 

RED GRN

BLK

WHI

GRY ORN BLK BLK

 

 

 

RED

 

BRN/WHI

 

 

 

 

4

 

 

 

 

 

 

 

 

 

SOL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/BLU

 

 

LEFT DISP

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

J2-1

 

 

 

 

 

 

 

 

 

 

 

 

 

NO (-)

 

 

 

 

 

J1-1

 

J1-4

 

 

 

J2 -8

J15-1

J15-4

J3-1

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

SOL

BLU/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/RED

 

 

 

 

 

 

 

 

 

 

RED

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REFILL

 

 

 

 

 

 

LEFT RPM

 

 

 

 

J14-1

 

 

 

 

 

 

 

J3-6

BLK

 

 

 

 

 

 

 

 

 

 

BLK

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR

 

GRN

BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

RED

 

 

 

 

 

 

 

 

C

 

 

 

J4-1

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RIGHT RPM

BLK

BLK

 

 

 

 

 

 

 

 

O

 

 

 

 

BRN/WHI

 

 

 

 

 

 

 

 

 

SENSOR

 

GRN

VIO

 

 

 

J14-7

 

 

 

 

 

 

 

BRN/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VIO

 

 

 

 

 

 

 

 

 

J4-5

WHI/GRY

 

 

 

 

 

 

 

 

 

LEFT

 

 

 

 

 

J7-1

 

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

 

BLK

RED

 

 

 

 

BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLU/BLK

 

 

 

 

 

 

 

 

 

PUMP

 

 

WHI/YEL

 

RED

 

 

 

 

 

 

R

 

 

 

J5-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YEL

 

 

YEL

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

 

J7-5

 

 

 

 

L

 

 

 

J5-3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

RIGHT

RED

 

 

 

 

BLK

 

 

 

 

 

 

P

 

 

 

J16-1

BLU

 

 

 

 

 

 

 

 

 

PUMP

 

 

ORN

 

 

RED

 

 

 

 

 

 

 

 

 

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/ORN

 

WHI/ORN

 

 

 

 

 

 

 

 

 

 

WHI/ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/YEL

 

J7-10

 

 

 

B

 

 

 

 

WHI/YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J16-5

PNK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

VIO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J8-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

 

J8-3

 

 

 

 

R

 

 

 

 

BLK

 

 

 

 

 

 

BLK ORN

 

 

 

 

 

 

 

 

 

J18-1

 

 

 

D

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J16-12

BLK

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

BLK

 

 

 

 

 

 

GRN

 

 

J18-6

 

 

 

 

 

 

 

 

 

WHI/YEL

 

BLK

WHI/ORN

BLK

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEFT

 

RIGHT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONDUCTANCE

CONDUCTANCE

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR

SENSOR

t

 

 

 

 

 

 

 

DISPENSERS WITH

 

20

 

 

15

 

10

 

5

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PORTION CONTROL

 

J6-

 

 

J6-

 

J6-

 

J6-

 

J6-

 

 

 

 

 

 

 

 

 

LF DISP. SW.

 

T

 

GRN

 

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

 

 

 

 

 

 

 

S

J1-1

BLU/WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I

 

RED/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

J1-5

ORN/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN/WHI

 

 

 

 

 

 

 

 

 

 

 

 

BLK WHI

 

 

 

RED BLK

WHI WHI

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

RED BLK

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

 

RED/WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

RT DISP. SW.

 

E

J1-10

BLU/BLK

 

 

 

 

 

 

 

 

 

 

 

 

HEAT SINK

 

 

 

 

 

 

 

 

 

 

 

D

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

PELTIER

RED BLK

 

 

 

 

 

 

 

 

B

 

GRN/BLK

 

 

 

 

 

 

 

 

 

 

 

 

THERMISTOR

t

 

 

 

 

 

 

 

 

O

 

WHI/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J1-16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SELECTOR

 

 

 

 

SELECTOR

 

 

 

 

COOLING CABINET

t

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

SWITCH

 

 

 

 

 

CABINET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NITE

WHI/GRY

 

RINSE

WHI/YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THERMISTOR

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120 VOLTS AC 2 WIRE

 

 

RUN

WHI/VIO

 

 

PRIME

TAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120/208-240 VOLTS AC 3 WIRE

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

208-240 VOLTS AC 2 WIRE

 

 

 

 

 

 

 

 

 

 

 

 

LCC Models only

 

 

 

 

 

 

 

 

 

SINGLE PHASE 50/60HZ

34641.0005A 11/12© 2012 BUNN-O-MATIC CORPORATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35

34766.1 010313

 

Image 35
Contents Phone 217 529-6601 FAX 217 LCA-2 LCA-2A LCA-2 PC LCC-2BUNN-O-MATIC Commercial Product Warranty Introduction Contents40054.0000 00824.0002 47624.0000 User Notices00656.0001 37881.0000 28181.0003 11646.0002Electrical Requirements Field Wiring Terminal Block DiagramModels without Master ON/OFF Switch Models with Master ON/OFF SwitchPlumbing HOOK-UP Plumbing RequirementsElectrical HOOK-UP Initial SET-UP Installing the Drip Tray and Flip Down CUP Tray1513 Operating Controls and InterfaceOz/sec 16 I.D. Tubing Selecting the Correct Pump TubingDispense RateReprogramming the Dispenser Flow Rate Setting Dispenser Flow RateRemoving the restrictors Procedure for Adjusting the Mix Ratio to Taste Adjusting MIX RatiosAlarm Mode FlavorGard FeatureRinse Alarm Feature Brew Temperature Lockout Feature BIB Empty Lockout FeatureExit 3/16 Programming the DispenserMenu Screen Action Description Tank Temp 351 +0oz + LF Disp VolumeRT Disp Volume Menu Screen Lock Flavor ? Exit YES Flavors LockedCabinet Temp Menu Screen Tank TempExit + Ready TempCAL Left Pump ? Pull Dispense Menu ScreenRinse Time ? 12 Hrs + Action DescriptionCAL Right Side ? Exit YES Menu Screen ActionCAL Right Pump ? Pull Dispenser CAL RT WTR Flow Pull DispenserTest Refill ? Exit YES WTR Start DelayWTR Stop Delay Test LED’S ? No Exit YES Test Switches ?Initial Fill & Heat Priming the Concentrate Lines Loading the ConcentrateFilling Cambros or other large containers Operating the Pull & Hold DispenserModels LCA-2 PC, LCA-2C PC, LCA-2A PC Operating the Preset Portion Control DispenserWeekly Sanitizing Cleaning & Preventative MaintenanceGeneral Cleaning and Sanitizing Procedures Daily Rinsing Daily Parts WashingReplacing the Pump Tubing Preventive MaintenanceDraining the HOT Water Tank Front Panel LED Display Messages TroubleshootingPower LED OFF Left Refill LED on Internal FaultPossible Cause Troubleshooting Dispenser Diagnostics-LCD DisplayBIB Not properly connected Check BIB Connector Fittings Tubing kinked or blocked Check Tubing installationScreen Displayed Possible Cause Wiring failure Corresponding Temperature SensorEvaporator temperature too high Air intake filter clogged Clean Air FilterCalibrating the Left Side Dispenser Calibrating the Right Side Dispenser Field Calibrating the Hot Water Flow RateOz/sec 53 ml/sec w/ flow restrictor Oz/sec 74 ml/sec w/o flow restrictorCalibrating The Empty BIB Threshold Field Calibrating the Empty BIB WarningLCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2C Schematic Wiring DiagramSchematic Wiring Diagram LCC-2A/LCA-2A/LCA-2A, PC
Related manuals
Manual 34 pages 56.59 Kb Manual 26 pages 22.61 Kb

LCA-2 PC, LCA-2A, LCC-2 specifications

The Bunn LCC-2, LCA-2 PC, and LCA-2A are high-performance commercial coffee brewers designed to meet the demands of busy coffee shops, restaurants, and other food service establishments. These machines are known for their efficiency, durability, and advanced brewing technologies, making them popular choices in the industry.

Starting with the Bunn LCC-2, this brewer is recognized for its compact design and ease of use. It has a brewing capacity of up to 3.8 gallons per hour, ensuring that coffee is ready quickly during peak hours. The LCC-2 uses a pour-over brewing method, which means that water is heated to the ideal brewing temperature and then poured over coffee grounds for optimal extraction. One of its standout features is the digital temperature control, which allows operators to adjust brewing temperatures easily for different coffee types. Additionally, the Bunn LCC-2 features a stainless steel construction that enhances durability and provides a sleek look for any commercial kitchen.

Moving on to the Bunn LCA-2 PC, this model includes programmable capabilities, making it perfect for establishments that require consistency and convenience. The LCA-2 PC allows users to preset brewing schedules and customize brew cycles, ensuring that each pot of coffee meets specific flavor profiles. This model is designed with a large-capacity brewing system that can produce up to 7.5 gallons of coffee per hour, making it an ideal choice for high-demand environments. It also boasts a built-in hot water faucet, which provides instant hot water for other beverages or culinary applications. The LCA-2 PC's advanced brewing automation helps maintain optimal brew quality while minimizing waste.

Lastly, the Bunn LCA-2A is an advanced version that focuses on automation and efficiency. This brewer features a state-of-the-art digital brew timer, which allows precise control over brew times, leading to consistent flavor extraction. The LCA-2A also integrates with Bunn’s patented brewWISE technology, which tracks brew recipes and monitors performance. The intuitive interface allows for easy operation, even for staff who may be less experienced with coffee brewing. With a capacity of up to 4 gallons per hour and a durable stainless steel frame, the LCA-2A ensures longevity while delivering exceptional coffee.

In summary, the Bunn LCC-2, LCA-2 PC, and LCA-2A represent the pinnacle of commercial coffee brewing technology. Their unique features, including programmable settings, large brewing capacities, and durable constructions, cater to the diverse needs of the food service industry. Each model emphasizes convenience, flexibility, and quality, making them invaluable assets in any professional coffee environment.