Bunn JDF-4SB, JDF-4D manual Electrical Schematic Diagram

Page 57

ELECTRICAL SCHEMATIC DIAGRAM

for JDF-4S-SB

SCHEMATIC WIRING DIAGRAM JDF-4S-SB

 

 

120V

 

 

MODELS

 

 

 

 

GRN

 

L1 N

 

 

 

 

 

 

 

TRANSFORMER

 

 

 

A

B

 

 

 

 

 

BLU

L

L

BLK

 

 

A

B

 

 

 

 

 

 

 

O

I

 

 

 

 

 

WHI/BLU

A

N

WHI

 

 

 

 

D

E

MAIN POWER

 

 

 

 

 

 

BLK WHI

 

 

 

 

 

ON/OFF

 

 

 

 

 

SWITCH

TRANSFORMER

 

 

 

 

 

BLK

BLK

 

 

BLU

 

 

 

 

 

L

L

BLK

 

 

 

 

 

WHI

WHI

 

 

 

O

I

 

 

WHI/BLU

A

N

 

 

 

 

 

D

E

WHI

 

 

 

 

COMPRESSOR ASSY

 

 

 

 

 

 

 

 

 

 

 

 

 

BLU/BLK

 

 

COMPRESSOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LIMIT

 

 

MOTOR

 

 

 

 

 

 

 

 

 

COLD WATER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THERM.

 

 

 

 

 

 

 

 

WHI

 

WHI/BLK

 

VALVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K1

 

 

 

 

 

 

 

 

 

START

 

RUN

 

 

 

 

 

 

 

 

WHI/VIO

 

WHI

 

 

 

 

 

16

 

 

 

 

 

 

 

 

 

 

 

SOL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN/YEL

 

3 6

5 2 N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

PTC

1

CONDENSOR FAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ASSY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLU/BLK

MOTOR

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLU/BLK

RED/BLK

 

 

 

 

 

RED/BLK

BLK

 

 

 

 

 

 

 

 

 

 

 

 

K1

 

 

 

 

 

 

 

REFRIGERATION

 

 

WATER INLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VALVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RECIR.

SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BRN

 

WHI

 

 

 

 

STATION 1

 

 

 

STATION 2

 

WHI

PUMP

RED/BLK

WHI/VIO WHI BLK WHI/BLK BRN

SOL

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

 

 

DISPENSE

 

 

 

DISPENSE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

PUMP

VIO

 

RED

PUMP

ORN

 

 

 

 

 

 

 

 

J3-1

RED

 

1

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

5

 

 

 

FAN

 

 

 

 

 

 

 

 

1

 

 

 

 

-

-

WHI/RED

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

J1

J1

J3-2

 

 

 

 

 

 

 

 

 

WHI/VIO

WHI/VIO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J7-1

GRY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

 

 

J7-2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J2-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK or ORN

 

1

 

 

 

 

 

 

 

 

 

 

VIO

VIO

VIO

 

 

L

J9-1

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

WHI/ORN

WHI/ORN

YEL

 

 

O

J9-2

 

 

BLK

BLK

 

 

 

 

 

 

 

 

 

 

 

BLK WHI

 

 

 

 

 

 

 

 

 

 

YEL

YEL

WHI/ORN

 

 

R

 

 

 

 

STATION 1

 

 

 

STATION 2

 

 

 

 

WHI/VIO

J2-6

 

T

 

 

 

 

 

 

CABINET

DISPENSE

 

 

 

DISPENSE

 

 

 

 

 

 

N

 

 

 

 

 

THERMISTOR

 

 

 

 

RED

RED

 

 

 

O

 

 

 

 

t

 

 

WHI/VIO

 

YEL

 

YEL

 

WHI/ORN

 

 

 

 

 

 

 

 

 

 

SOL

 

SOL

 

ORN

ORN

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

t

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WATER BATH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STATION 3

 

 

 

STATION 4

 

 

 

 

 

 

 

 

 

THERMISTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DISPENSE

 

 

 

DISPENSE

 

 

 

 

 

 

 

D

 

 

 

 

 

 

 

RED

 

VIO

 

RED

 

ORN

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

PUMP

 

PUMP

 

 

 

 

 

 

 

P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TAN

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/VIO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

WHI/GRN

J13-1

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

VIO

PNK

PNK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

WHI/ORN

BLU

GRY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YEL

GRY

BLU

 

 

 

 

 

 

 

 

 

 

STATION 3

 

 

 

STATION 4

 

 

 

 

TAN

J13-6

 

 

 

 

 

 

8

 

 

DISPENSE

 

 

 

DISPENSE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

WHI/GRN

 

 

 

 

 

 

 

 

 

 

 

WHI/VIO

SOL

YEL

 

YEL

SOL

WHI/ORN

 

 

 

 

 

J15-1

YEL

 

 

 

 

 

 

 

 

 

 

 

ORN

GRN

 

 

 

 

ORN

 

 

 

 

ORN

 

 

 

 

 

 

 

 

12

 

 

WHI/BLU

J6-1

 

 

 

BLU

 

 

 

 

YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

J15-4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

BLU

J6-3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J5-1

GRN

 

 

 

 

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/BLU

 

 

 

RED

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

J12-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

BLU

J12-3

 

 

J5-4

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J11-1

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

120 VOLTS AC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

J11-5

 

 

 

 

 

 

 

 

BLK

or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

230 VOLTS AC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

2 WIRE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SINGLE PHASE

 

44746.0001A

06/11 © 2011 BUNN-O-MATIC CORPORATION

 

 

 

DISPENSE

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOCKOUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

 

230V

MODELS

GND L1 N

GRN/YEL

BRN BLU

EMI

FILTER

AB A B

WHI

BLK

BLK

6

STATIC

 

 

SHIELD

 

 

DISPENSE

ORN

 

STATION

 

#4

BLK

 

DISPENSE

1

BLK 6

STATIC

 

SHIELD

 

 

DISPENSE

YEL

 

STATION

 

#3

BLK

 

DISPENSE

 

1

 

BLK

6

STATIC

 

 

SHIELD

 

 

DISPENSE

RED

 

STATION

 

#2

BLK

 

DISPENSE

 

1

 

BLK

6

STATIC

 

 

SHIELD

 

 

DISPENSE

GRN

 

STATION

 

#1

BLK

 

DISPENSE

 

1

 

57

49179

110613

 

Image 57
Contents Phone 217 529-6601 FAX 217 JDF-4D, JDF-4SBBUNN-O-MATIC Commercial Product Warranty Introduction Recommended Daily Cleaning Instructions Required Regular Maintenance Problem Probable Cause Cold Water CirculationRemedy Problem Probable Cause Remedy RefrigerationDispenser Locked Out Continuity When dispensing. If yes, replaceEd replace relay Check for kinked flex lineWater only Concentrate onlyTray Nect fittingsWater pressure greater than 100psiAdapter assembly Pump tubing Inspect, clean, or replace tubing AgeUnit is not working Replace control boardComponent Access ServiceAccess Panels Servicecont Access PanelsDispense Platform Removal Servicecont Dispense Platform RemovalTest Procedure ServiceBallast JDF-2S,4S LocationCabinet Fan all Models Remove the four screws attaching the fan and cover assemblyLocation LG Compressor JDF-2S,4S,4DDesign Pressures High 335 Low 88 psi CompressorCompressor GD Compressor JDF-2S,4S,4DDisconnect and remove the transformer Compressor Thermal Compressor JDF-4SBBLU/BLK Compressor Switch Compressor Switch all ModelsCondenser FAN Condenser Fan all ModelsControl Board, Main all Models Test Procedure Power Supply CircuitryWith a voltmeter, back probe check the voltage Portion Control Board JDF-2S,4SSource. The indication must be 24 volts ac To the transformer See TransformerPush Button Control Board Push Button Control Board JDF-4DPortion Control Board JDF-4D With a voltmeter Circulation Pump all ModelsDispense Platform Switch all Models Disconnect the two black wires from the switchReturn power to the dispenser Dispense Pump Dispense Pump all Models except JDF-4DDispense Motor all Models Reconnect the two wires to the motor as shown in FigDispense Valve Dispense Valve all ModelsDispense Switches Dispense Switches JDF-2S, JDF-4SCold Water Dispense Switch Cold Water Dispense Switch JDF-4S onlyLocation Dispense Membrane Switch all ModelsMembrane Switch EMI Filter EMI Filter all ModelsLamps & Holders Lamps, Holders and Ballasts Early ModelsDisconnect power from the dispenser LED Lamps JDF-2S, JDF-4SLED regulator board Rectifier Rectifier JDF-2S, JDF-4SRefer to to reconnect the wires Relay all ModelsVolts ac for 120 volt models Volts ac for 230 volt models Resistor Resistor all 230V ModelsIf voltage is present as described, proceed to #5 Solenoid Cold Water JDF-4S only120V 1.2 kΩ 230V 3.84 kΩ Solenoid Inlet all ModelsTemp Resistance Voltage Temperature Probe all Models32 F 31.2k 34k Ω 77 F 8k 10.2k ΩTemperature Sensor all Models 32 F 5k Ω77 F 350 Ω Transformer Terminals Transformer all ModelsTransformer Lited Doors JDF-2S, JDF-4S Water Q27 Compressor Relay Q25Water Q28 Water Q7Diagram for JDF-2S LED Lited Doors Schematic Wiring Schematic Wiring Diagram JDF-4S Schematic Wiring Diagram JDF Schematic Wiring Diagram JDF-4D Schematic Wiring Diagram JDF-4D Electrical Schematic Diagram
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JDF-4D, JDF-4SB, 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.