Bunn JDF-4S service manual Models with Flourescent Lited Doors, Red Blk

Page 28

SCHEMATIC WIRING DIAGRAM JDF-2S

(Models with Flourescent Lited Doors)

Models with Dual Dispense Option

TRANSFORMER

BLUBLK

 

L

L

 

 

O

I

 

WHI/BLU

A

N

WHI

D

E

 

TRANSFORMER

 

BLU

L

L

BLK

 

 

 

O

I

 

WHI/BLU

A

N

WHI

D

E

COMPRESSOR ASSY

BLU/BLK

COMPRESSOR

 

MOTOR

 

LIMIT

 

THERM.

 

120V

 

 

220-230V

 

MODELS

 

 

MODELS

 

L1 N

GND L1 N

 

 

 

 

 

 

 

 

 

 

GRN/YEL

 

BRN BLU

 

 

 

 

 

 

 

 

EMI

 

 

 

 

 

 

 

 

FILTER

 

A

B

 

 

 

A

B

 

 

 

 

 

 

 

 

GRN

A

B

 

 

 

A

B

 

 

 

WHI

 

 

 

 

BRN/WHI

 

WHI/GRN

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-16

START

 

RUN

 

 

WHI

 

WHI/BLK

GRN/YEL

 

 

 

 

 

K1

 

 

 

 

 

 

 

 

3 6

 

5 2 N

WHI

 

 

 

 

 

4

PTC

1

CONDENSOR FAN

 

 

 

ASSY

 

 

 

 

 

 

BLU/BLK

MOTOR

WHI

 

WHI

 

 

 

 

 

 

 

 

 

BLU/BLK

RED/BLK

 

 

 

RED/BLK

BLK

 

 

 

 

 

 

 

 

 

 

K1

 

 

 

 

REFRIGERATION

 

 

 

 

WATER INLET

 

 

 

 

 

 

 

WHI

RECIR. RED/BLK

SWITCH

 

 

 

 

 

 

LEFT

 

 

RIGHT

 

 

 

 

 

VALVE

 

 

 

 

 

 

 

PUMP

 

 

 

 

 

 

 

 

 

DISPENSE

 

 

DISPENSE

 

GRN

 

 

 

 

 

BRN

SOL

WHI

 

RED PUMP

VIO

RED PUMP

ORN

 

WHI BLK WHI/BLK BRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

WHI/VIO

 

 

 

1

 

 

 

 

 

 

 

 

WHI/VIO

 

 

L

 

 

RED

RED

 

 

 

 

 

 

 

 

 

 

1

5

J3-1

 

 

 

 

 

 

 

 

 

 

 

O

WHI/RED

 

BLK

FAN

 

 

 

 

 

 

 

 

 

J1-

J1-

J3-2

 

 

 

 

 

 

 

 

 

RED

R

 

 

 

 

 

 

 

 

 

 

 

 

J2-1

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

 

N

 

J7-1

GRY

 

 

 

 

 

 

 

 

 

VIO

VIO

VIO

 

O

 

WHI/BLK

 

 

 

 

 

 

 

 

 

WHI/ORN

WHI/ORN

YEL

 

C

 

J7-2

 

 

 

 

 

 

 

 

 

 

YEL

YEL

WHI/ORN

 

 

 

J9-1

BLK

 

 

1

 

LEFT

 

 

RIGHT

 

 

 

WHI/VIO

 

 

 

 

 

 

 

 

 

 

 

J2-6

 

 

WHI

 

 

 

 

DISPENSE

 

 

DISPENSE

 

 

 

 

 

 

J9-2

 

 

BLK BLK

 

 

 

 

RED

RED

 

 

 

 

 

BLK WHI

 

WHI/VIO

SOL

YEL

YEL

SOL

WHI/ORN

 

 

D

 

 

 

 

 

 

 

 

ORN

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

WHI/BLU

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

J6-1

P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

t

 

 

 

 

 

 

 

 

BLU

J6-3

O

 

 

 

t

 

 

 

 

 

 

 

 

 

B

 

 

 

 

CABINET

 

 

 

 

 

 

 

 

WHI/BLU

J12-1

 

 

 

 

WATER BATH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THERMISTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLU

J12-3

 

 

 

 

THERMISTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-

 

 

 

 

˜

 

 

 

 

 

 

RECTIFIER

+

µ

 

 

 

 

orBRN

 

 

 

WHI

 

 

GRN

BLU

 

 

 

 

Chassis

 

 

 

Ground

 

 

 

 

 

 

DOOR

 

 

 

WHI/BLK

WHI/GRN

4

BLK

WHI

1

WHI

BLK

 

LINE

DISPENSE

LOCKOUT

SWITCH

TRANSFORMER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Models with Mechanical Switches

Models with Membrane Switches

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J6-1

BLK

BLK

J11-1

 

 

 

 

 

 

 

 

 

 

 

AUXILLARY

 

 

 

 

 

RED

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLU

BLU

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL BOARD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YEL

YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

J6-5

ORN

ORN

J11-5

J5-1

GRN or YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

-1

 

 

-5

 

-1

 

-5

-1

-5

-1

-3

-1

-5

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

J2

 

 

J2

 

J3

 

J3

J4

J4

J1

J1

J5

J5

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J5-4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STOP/PLUS

LARGE

MEDIUM

SMALL

STATIC

STOP/PLUS

LARGE MEDIUM

SMALL

STATIC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SHIELD

 

 

 

SHIELD

 

 

 

 

 

 

 

 

 

 

 

DISPENSE

DISPENSE

 

 

 

 

STATION

STATION

Chassis

#1

#2

PUSH BUTTON OPTION

 

Ground

 

 

DISPENSE

SHIELD

DISPENSE

SHIELD

DISPENSE

BLK

 

STATIC

 

STATIC

 

 

 

 

 

 

SWITCH

 

 

DISPENSE

 

DISPENSE

 

 

 

STATION

 

STATION

 

BLK

 

#1

 

#2

 

RIGHT

DISPENSE

SWITCH

BLK RED

LEFT DISPENSE SWITCH

BLK GRN

HARNESS

 

GRN WHI BLU or BRN

 

3

1

DOOR

 

(Single Ballast)

 

GRN WHI RED

 

Chassis

BLK BLK

Ground

 

 

BALLAST

BLU BLU

 

LOAD

WHI/GRN

WHI/BLK

WHI

 

3

1

 

DOOR

 

 

(Dual Ballast)

 

WHI

GRN WHI BRN

 

 

 

 

2

1

 

Chassis

 

 

Ground

 

 

BLK RED

WHI WHI

 

BALLAST

WHI BRN

 

2

1

WHI

 

BLK RED

WHI WHI

BALLAST

WHI

120 VOLTS AC

 

or

 

220-230 VOLTS AC

 

2 WIRE

 

SINGLE PHASE

38951.0001D 10/09 © 2006 BUNN-O-MATIC CORPORATION

 

WHI

WHI

WHI

WHI

28

44744.2 030813

 

Image 28
Contents JDF-2S JDF-4S Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents User NoticesInitial SET-UP CE RequirementsElectrical Requirements Plumbing RequirementsDoor Cover Installation Secure the door cover using 5 screws providedPlumbing Connections JDF-2S Plumbing Connections JDF-4S Plumbing HookupInitial Fill Initial Fill Refrigeration Switch Refrigeration SwitchProduct Dispense Switch Mechanical Switch Machines Operating ControlsProduct Dispense Switch Membrane Switch Machines Dispense Lockout SwitchDispense Lockout Switch Program SwitchPortion Control Option Mechanical Switch Machines Push and Hold Membrane Switch MachinesPortion Control Option Membrane Switch Machines Dispenser USETemperature LEDs JDF-4S Temperature LEDs JDF-2S Late ModelsCleaning & Preventive Maintenance Daily Rinse ProcedureCleaning Monthly Clean Condenser Coils and Filter Open dispenser doorAdjustment & Optional Settings Water Flow Testing and AdjustmentLoading PrimingFrozen Concentrates Ambient Concentrates OptionalRatio Target Optional Cold Water Flow Adjustment Dispenser LockoutCircuit Board LED Indicators JDF-2S Early Models Function ListLED # LED Color IlluminatesJDF-4S Troubleshooting ProblemProbable Cause RemedyTroubleshooting Compressor ON/OFF switch Dirty condenser filter or finsRefrigeration Space around machineProblem Probable Cause Remedy Concentrate only Water onlyInitial fill/setup Nect fittingsTray Water pressure greater thanProblem Probable Cause Coolant Schematic Diagram Schematic Wiring Diagram JDF-2S Models with LED Lited DoorsModels with Flourescent Lited Doors RED BLKSchematic Wiring Diagram JDF-4S BRN BLU EMIWire Quick Setup Guide JDF-2S and JDF-4S JDF-2S shown Shown.See Initial Fill
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JDF-4S specifications

The Bunn JDF-4S is a high-performance commercial coffee brewer designed to meet the needs of busy coffee shops, restaurants, and other establishments requiring a reliable and efficient coffee brewing solution. This versatile machine boasts an array of advanced features and technologies, making it a prominent choice among professionals in the coffee industry.

One of the most notable features of the Bunn JDF-4S is its ability to brew up to 4 gallons of coffee per hour, ensuring that establishments can keep pace with high-demand environments. This capacity makes it an ideal choice for venues that experience peak periods of coffee consumption, minimizing wait times for customers. The machine is designed with a multiple-brew option, allowing users to select various brew methods, which can cater to diverse customer preferences.

The JDF-4S incorporates Bunn’s patented brewing technology, which utilizes a precision-controlled process to ensure optimal flavor extraction. The brewed coffee is delivered at an ideal temperature, typically between 195°F and 205°F, promoting maximum taste and aroma. The machine also features a programmable digital controller that enables users to set specific brew times and adjust water temperature settings to achieve consistent results.

Another significant characteristic of the Bunn JDF-4S is its durability and ease of use. Constructed with high-quality materials, the machine is built to withstand the rigors of daily operation. The user-friendly interface features a simple touchpad design for easy navigation and programming. Additionally, the machine includes a built-in diagnostics program, helping users quickly identify and troubleshoot potential issues, thereby minimizing downtime.

The JDF-4S also offers flexible brewing options, including iced coffee brewing, enhancing its versatility. It is compatible with Bunn’s extensive range of coffee and tea dispensers, allowing businesses to expand their beverage offerings effortlessly. Furthermore, the unit features an easy-access water reservoir for quick refilling and reduced wait times during busy service periods.

In terms of maintenance, the Bunn JDF-4S is designed with user convenience in mind. The machine includes a rinse and clean cycle to ensure optimal hygiene and coffee quality. Integrated clean alerts guide users through the cleaning process, promoting regular upkeep and ensuring the longevity of the brewer.

In summary, the Bunn JDF-4S represents a cutting-edge solution for coffee brewing that prioritizes performance, versatility, and ease of use. With its advanced brewing technology, user-friendly features, and robust construction, it offers an exceptional choice for businesses seeking to serve high-quality coffee efficiently.