Bunn JDF-4SB, JDF-4D manual Schematic Wiring

Page 52

ELECTRICAL SCHEMATIC DIAGRAM for JDF-2S

(Models with Flourescent Lited Doors)

BLK

WHI

WHI/BLK

DISPENSE

LOCKOUT SWITCH

 

 

WHI/GRN

 

 

-

RECTIFIER +

µ

 

˜

1

BLK

 

 

WHI

4

 

WHI

 

BR or BLU

 

GRN

 

 

Chassis Ground

 

TRANSFORMER

LINE

LOAD

N

DOOR

HARNESS

WHI/BLK

WHI/GRN

BRN or BLU

WHI

GRN

3 1 DOOR (Dual Ballast)

3 1 DOOR (Single Ballast)

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BRN

 

 

 

 

 

 

RE

D

 

 

 

WHI

2

 

 

 

 

 

BL

K

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BRN

 

 

 

 

 

 

 

RE

D

 

 

WH

I

2

 

 

 

 

 

BL

K

 

GRN

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

Chassis Ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BL U

 

 

 

 

 

 

 

 

 

 

 

 

BL U

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BL K

 

 

 

 

 

 

 

 

 

 

 

BL K

 

 

 

 

 

RE D

 

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

Chassis

Ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BALLASTBALLAST WHI WHI

BALLAST

WHIWHI

230V

MODELS

NL1GND

GRN/YE

EMIFILTERL

 

 

BA BA

 

 

 

 

 

BL U

 

 

 

 

 

 

 

WHI/GRN

 

 

 

 

BR N

 

 

 

 

 

 

 

BRN/WHI

120V

MODELS

L1 N

 

 

 

 

 

A B

A B

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

BLK

 

 

FAN

BLK

WHI

 

1

WATER INLET VALVE

WHI

RED BLK

 

 

1

 

SOL

 

WHI

 

BLK

WHI/RED

WHI/BLK

 

BRN

t t

THERMISTOR

WATER BATH THERMISTOR

CABINET

Models with Mechanical SwitchesRIGHT

DISPENSE SWITCH

BLKRED

BLKGRN

1 GRN or YELLEFT REDDISPENSE BLKSWITCH BLK

BLK

DIAGRAM JDF-2S

TRANSFORMER

BLK

WHI

 

L I N E

 

L O A D

BLU

WHI/BLU

WHI/BLK

 

RED

GRY

BLK WHI

 

J3-1 J3-2

J7-1 J7-2

J9-1 J9-2

BRN

5-J1

 

 

 

 

 

WHI/BL

K

C O N T R O L

BLK

 

 

 

WHI

1-J1

 

 

 

 

 

BLK

REFRIGERATION SWITCH

J2-1

J2-6

J5-1

J5-4

P C B O A R D

 

 

J6-1 J6-3 J12-1 J12-3

J11-1

J11-5

Chassis Ground

DISPENSE LOCKOUT SWITCH

BLK

MATIC CORPORATION

SCHEMATIC WIRING

Models with Dual Dispense Option

TRANSFORMER

BLK

WHI

 

L I N E

 

L O A D

BLU

WHI/BLU

K1

WHI

CONDENSOR FAN

WHI

 

RED/BLK

 

 

RED ORN VIO

YEL

WHI/ORN WHI/VIO

 

 

 

RECIR. RED/BLK PUMP

GRN

WHI/VIO

VIO

WHI/ORN

YEL

RED

ORN

 

WHI

 

1

 

 

 

 

 

WHI

 

WHI/VIO

VIO

WHI/ORN

YEL

RED

ORN

MOTOR

 

 

 

 

 

 

 

 

BLU/BLK

RIGHT DISPENSE

ORN

 

 

 

RIGHT DISPENSE

WHI/ORN

PUMP

 

 

 

 

SOL

WHI/BLU

BLU WHI/BLU

12

 

BLU

BLK RED BLU YEL ORN

 

BLK RED BLU YEL ORN

 

-1

-5

5-J5

J6

J6

 

 

1-J5

 

 

3-J1

 

 

1-J1

 

AUXILLARY CONTROLBOARD

5-J4

 

1-J4

 

 

38951.0001D 10/09 © 2006 BUNN-O-

VOLTS AC or VOLTS AC WIRE PHASE

COMPRESSOR ASSY

COMPRESSOR MOTOR LIMIT THERM.

 

BLU/BLK

RUN

N

 

2

1

 

5

 

 

6

PTC ASSY

 

 

START

3

4

1-GRN/YEL

RED/BLK

 

 

 

RED

YEL

 

 

 

 

K1

 

 

 

BLU/BLK

 

 

LEFT DISPENSE

VIO

YEL

 

 

PUMP

SOL

 

 

6

RED

 

LEFT DISPENSE WHI/VIO

 

 

 

 

 

 

 

 

 

 

Switches

5-J3

 

Membrane

1-J3

5-J2

Models with

1-J2

STATIC SHIELD

 

DISPENSE STATION #2

 

MEDIUM

L

 

SMAL

 

 

LARGE

 

 

 

STOP/PLUS

 

 

 

STATIC SHIELD

 

DISPENSE STATION #1

BUTTONOPTION

STOP/PLUS

L

SMAL

 

 

MEDIUM

 

 

 

LARGE

 

 

 

 

 

 

PUSH

DISPENSESTATION#2 STATICSHIELD

DISPENSE

DISPENSESTATION#1 STATICSHIELD

DISPENSE

120 230 2 SINGLE

52

49179

110613

 

Page 51 Page 53
Image 52
Page 51 Page 53
Contents JDF-4D, JDF-4SB Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Introduction Recommended Daily Cleaning Instructions Required Regular Maintenance Cold Water Circulation Problem Probable CauseRemedy Refrigeration Problem Probable Cause RemedyDispenser Locked Out When dispensing. If yes, replace ContinuityEd replace relay Check for kinked flex lineConcentrate only Water onlyNect fittings TrayWater pressure greater than 100psiPump tubing Inspect, clean, or replace tubing Age Adapter assemblyUnit is not working Replace control boardService Component AccessServicecont Access Panels Access PanelsServicecont Dispense Platform Removal Dispense Platform RemovalService Test ProcedureBallast JDF-2S,4S LocationRemove the four screws attaching the fan and cover assembly Cabinet Fan all ModelsLG Compressor JDF-2S,4S,4D LocationCompressor Design Pressures High 335 Low 88 psiGD Compressor JDF-2S,4S,4D CompressorDisconnect and remove the transformer Compressor JDF-4SB Compressor ThermalBLU/BLK Compressor Switch all Models Compressor SwitchCondenser Fan all Models Condenser FANTest Procedure Power Supply Circuitry Control Board, Main all ModelsPortion Control Board JDF-2S,4S With a voltmeter, back probe check the voltageSource. The indication must be 24 volts ac To the transformer See TransformerPush Button Control Board JDF-4D Push Button Control BoardPortion Control Board JDF-4D Circulation Pump all Models With a voltmeterDisconnect the two black wires from the switch Dispense Platform Switch all ModelsReturn power to the dispenser Dispense Pump all Models except JDF-4D Dispense PumpReconnect the two wires to the motor as shown in Fig Dispense Motor all ModelsDispense Valve all Models Dispense ValveDispense Switches JDF-2S, JDF-4S Dispense SwitchesCold Water Dispense Switch JDF-4S only Cold Water Dispense SwitchDispense Membrane Switch all Models LocationMembrane Switch EMI Filter all Models EMI FilterLamps, Holders and Ballasts Early Models Lamps & HoldersLED Lamps JDF-2S, JDF-4S Disconnect power from the dispenserLED regulator board Rectifier JDF-2S, JDF-4S RectifierRelay all Models Refer to to reconnect the wiresVolts ac for 120 volt models Volts ac for 230 volt models Resistor all 230V Models ResistorSolenoid Cold Water JDF-4S only If voltage is present as described, proceed to #5Solenoid Inlet all Models 120V 1.2 kΩ 230V 3.84 kΩTemperature Probe all Models Temp Resistance Voltage32 F 31.2k 34k Ω 77 F 8k 10.2k Ω32 F 5k Ω Temperature Sensor all Models77 F 350 Ω Transformer all Models Transformer Terminals Transformer Lited Doors JDF-2S, JDF-4S Compressor Relay Q25 Water Q27Water 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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