Bunn 34766.0000S manual Volts AC 2 Wire

Page 33

SCHEMATIC WIRING DIAGRAM

 

 

 

 

 

 

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

L1

 

RED-14

 

 

 

 

(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

 

 

 

 

 

 

RED

10 AMP

 

UNIVERSAL

 

 

 

 

 

 

 

BLK

 

 

POWER SUPPLY

 

 

 

 

 

BLK

-V

N(L2)

WHI

 

 

 

 

RED

+V

L(L1)

BLK

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

 

-V

GRN

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

THERMOSTAT

 

 

 

 

 

 

TRIAC

SW. & THERMOSTAT

TANK HEATER

BLK-14 1

2

 

 

 

 

 

BLK-14

BLU-14

BLU-14

RED-14

 

 

RED-14

 

 

 

 

 

 

 

 

 

 

 

 

 

3

4

 

 

 

 

 

 

 

 

 

 

WHI

Fuse 1

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

TAN

 

PORTION

 

10 AMP

 

 

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

OVERFLOW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PROTECTION SW

 

 

 

 

 

 

 

 

RED

RED

WHI/GRY

 

 

 

DOOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/GRY

 

RED/BLK

 

 

 

 

 

 

 

 

RED

SOL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOT WATER

 

 

 

 

 

 

 

 

 

RED

SOL

BRN/BLK

 

 

 

 

 

 

 

 

 

 

 

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

 

IRED/BLK

T

 

GRN

C

J1-5

ORN/BLK

H

GRN/WHI

A

 

 

 

N

 

BLK

D

 

 

RED/WHI

L

 

 

BLU/BLK

E

J1-10

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

 

 

 

 

BLK

 

LLC Models only

33

34766 062210

 

Image 33
Contents Phone 217 529-6601 FAX 217 Post Office BOX SPRINGFIELD, IllinoisBUNN-O-MATIC Commercial Product Warranty Introduction Contents00656.0001 User Notices37881.0000 28181.0003 11646.0002 40054.0000Models without Master ON/OFF Switch Field Wiring Terminal Block DiagramModels 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 Oz/sec 16 I.D. Tubing1513 Operating Controls and InterfaceInitial Fill & Heat FlavorGard Feature Rinse Alarm FeatureAlarm Mode Brew Temperature Lockout Feature BIB Empty Lockout FeatureMenu Screen Action Description Tank Temp Programming the Dispenser351 + Exit 3/16RT Disp Volume LF Disp VolumeMenu Screen Lock Flavor ? Exit YES Flavors Locked 0oz +Exit + Menu Screen Tank TempReady Temp Cabinet TempRinse Time ? 12 Hrs + Menu ScreenAction Description CAL Left Pump ? Pull DispenseCAL Right Pump ? Pull Dispenser Menu Screen ActionCAL RT WTR Flow Pull Dispenser CAL Right Side ? Exit YESWTR Stop Delay WTR Start DelayTest LED’S ? No Exit YES Test Switches ? Test Refill ? Exit YESPriming 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 DispenserGeneral Cleaning and Sanitizing Procedures Daily Rinsing Cleaning & Preventative MaintenanceDaily Parts Washing Weekly SanitizingReplacing the Pump Tubing Preventive MaintenanceDraining the HOT Water Tank Troubleshooting Power LED OFFFront Panel LED Display Messages Left Refill LED on Internal FaultConcentrate BIB is Empty Empty BIB WarningPossible Cause Troubleshooting Dispenser Diagnostics-LCD DisplayScreen Displayed Possible Cause CHK Pump Wiring Left Pump FaultCHK RPM Sensor CHK Tubing Area RT Pump Fault CHK RPM Sensor CHK Tubing Area Cooler FaultCalibrating the Left Side Dispenser Oz/sec 53 ml/sec w/ flow restrictor Field Calibrating the Hot Water Flow RateOz/sec 74 ml/sec w/o flow restrictor Calibrating the Right Side DispenserCalibrating The Empty BIB Threshold Field Calibrating the Empty BIB WarningVolts AC 2 Wire Schematic Wiring Diagram LCC-2A/LCA-2A/LCA-2A, PC

34766.0000S specifications

The Bunn 34766.0000S is a commercial-grade coffee maker that stands out for its efficiency and precision in brewing. Designed for high-volume environments such as restaurants, cafes, and offices, this coffee brewer is engineered to deliver a consistent and robust coffee flavor with every brew.

At the heart of the Bunn 34766.0000S is its unique brewing system, which employs a patented technology to optimize extraction. This system ensures that water is heated to the ideal temperature, usually around 200°F, for optimal flavor extraction from coffee grounds. The precise temperature control is essential in commercial settings, where the quality of coffee can significantly affect customer satisfaction.

The Bunn 34766.0000S features a stainless steel construction, which not only enhances its durability but also allows for easy cleaning and maintenance. The sleek design fits comfortably in any kitchen setting, and its compact size makes it suitable for countertops with limited space. With a 12-cup capacity, this machine is capable of producing multiple pots of coffee quickly, ensuring that demand is met during peak hours.

One of the standout features of the Bunn 34766.0000S is its Smart Brew technology. This innovative feature allows for customizable brewing settings, enabling users to adjust brew strength and flavor profiles according to their specific preferences. The machine includes a programmable timer, which can be set for automatic brewing, a significant advantage for businesses that require coffee to be ready at specific times.

Additionally, the Bunn 34766.0000S comes equipped with a built-in water tank, which keeps water at the optimal brewing temperature for instant coffee production. This feature minimizes waiting times and ensures that coffee is always fresh.

In terms of safety, the Bunn 34766.0000S is fitted with an advanced safety shut-off mechanism to prevent overheating and ensure that the machine operates within safe temperature limits. This reliability is crucial for busy establishments where operational efficiency is paramount.

In summary, the Bunn 34766.0000S is an exceptional choice for businesses looking for a dependable, high-quality coffee brewing solution. It combines innovative brewing technologies, user-friendly features, and a robust design to meet the demands of any commercial environment, making it an indispensable tool for serving delicious coffee consistently.