Bunn JDF-2S Installation & Operating Manual Download

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SCHEMATIC WIRING DIAGRAM JDF-2S

44744.2 030813

J6-1

J11-1

J11-5

J6-1

J6-5

J6-3

CONTROL

BOARD

J5-1

J5-4

J2-1

J2-6

GRN

WHI/ORN

LEFT

DISPENSE

RIGHT

DISPENSE

LEFT

DISPENSE

RIGHT

DISPENSE

YEL

WHI/VIO

RECIR.

PUMP

BRN

WHI BLK

J1-1

J1-5

WHI

J3-1
J3-2

WHI/BLK

ORN

WHI/VIO

WHI/ORN

VIO

RED

WHI/RED

BLK

WHI

RED/BLK

YEL

WHI/BLU

BLU

BLK

RED
BLU

YEL

ORN

BLK

RED
BLU
YEL
ORN

RED

MOTOR

CONDENSOR FAN

RED/BLK

BLU/BLK

J7-1
J7-2

J9-1
J9-2

PUMP

FAN

AUXILLARY

CONTROL BOARD

WHI/BLK

GRY

BLK

WHI

CABINET

THERMISTOR

WATER BATH

THERMISTOR

WHI

BLK

BLU/BLK

BLK

WHI

GRN

BLK

REFRIGERATION

SWITCH

WHI/VIO

VIO

WHI/ORN

YEL

RED

ORN

SOL

WATER INLET

VALVE

BRN

WHI

SOL

BLK

TRANSFORMER

WHI

BLU

WHI/BLU

WHI

WHI/BLK

120V

MODELS

A B

WHI/GRN

BRN/WHI

A B

220-230V

MODELS

GRN/YEL

GND

BRN

BLU

EMI

FILTER

120 VOLTS AC

220-230 VOLTS AC

2 WIRE

SINGLE PHASE

J1-1

J1-3

J5-1

J5-5

J4-1

J4-5

J3-1

J3-5

J2-1

J2-5

PUSH BUTTON OPTION

Models with Membrane Switches

Models with Mechanical Switches

STATIC

SHIELD

DISPENSE

STATION

STOP/PLUS

LARGE

MEDIUM

SMALL

STATIC

SHIELD

DISPENSE

STATION

DISPENSE

STATION

DISPENSE

STATION

STOP/PLUS

LARGE

MEDIUM

SMALL

DISPENSE

STATIC

SHIELD

DISPENSE

STATIC

SHIELD

GRN or YEL

RED
BLK

BLK

RED

BLK

RIGHT

DISPENSE

SWITCH

GRN

BLK

LEFT

DISPENSE

SWITCH

DISPENSE

LOCKOUT

SWITCH

BLK

TRANSFORMER

WHI

BLK

WHI

GRN

BLU or BRN

WHI

RED

GRN

WHI

BRN

WHI

BRN

BLK

RED

WHI

BLK

RED

WHI

BLK

BLU

BLU or BRN

WHI/GRN

WHI/BLK

WHI/GRN

WHI

WHI/BLK

LOAD

LINE

Chassis

Ground

RECTIFIER

DOOR

HARNESS

DOOR

(Single Ballast)

Models with Dual Dispense Option

DOOR

(Dual Ballast)

Chassis

Ground

Chassis

Ground

BALLAST

WHI

BALLAST

WHI

BLK

DISPENSE

LOCKOUT

SWITCH

BLK

TRANSFORMER

WHI

BLU

WHI/BLU

J12-1

J12-3

WHI/BLU

BLU

RUN

COMPRESSOR ASSY

LIMIT

THERM.

COMPRESSOR

MOTOR

PTC

ASSY

GRN/YEL-16

Chassis

Ground

(Models with Flourescent Lited Doors)

Summary of Contents for JDF-2S

Page 1: ... the latest revision of the Operating Manual or to view the Illustrated Parts Catalog Programming Manual or Service Manual please visit the Bunn O Matic website at www bunn com This is absolutely FREE and the quickest way to obtain the latest catalog and manual updates For Technical Service contact Bunn O Matic Corporation at 1 800 286 6070 44744 0002D 11 13 2012 Bunn O Matic Corporation ...

Page 2: ...g on BUNN Accordingly statements by such individuals whether oral or written do not constitute warranties and should not be relied upon If BUNN determines in its sole discretion that the equipment does not conform to the warranty BUNN at its exclusive op tion while the equipment is under warranty shall either 1 provide at no charge replacement parts and or labor during the applicable parts and lab...

Page 3: ...LL TIMES UNLESS ELECTRICALLY DISCONNECTED AVERTISSEMENT Pièces amovibles Ne pas utiliser l appareil lorsque le panneau est enlevé Risk de choc électrique Debrancher le cordon d alimentation de l appareil avant de faire l entretien Moving Parts Do not operate unit with this panel removed Risk Of Electrical Shock Disconnect power before servicing unit CHARGE Type R134A Amount 9 oz 255 gm Design Pres...

Page 4: ...ust be a NEMA 5 15R The 220 230V rated dispenser has an attached cord set and requires an attachment plug cap rated at least 230 volts ac 15 amp The attachment plug cap must meet with applicable national local electrical codes Refer to the data plate for exact electrical requirements ELECTRICAL HOOK UP CAUTION Improper electrical installation will damage electronic components 1 An electrician must...

Page 5: ...sing 5 screws provided DOOR COVER INSTALLATION 1 Install door cover by first plugging the door harness connector into the machine harness connector located at the bottom of the machine door P3577 P3579 JDF 2S JDF 4S Shown JDF 2S JDF 4S JDF 2S JDF 4S JDF 4S P3578 P3840 3 Install door cover 44744 2 110813 ...

Page 6: ...il you hear the water valve turn on For Portion Control machines press and hold the PLUS STOP switch 6 Monitor the water bath fill level until water starts to trickle from the overflow tube Then press the dispense button again to stop the fill process NOTE The fill timer may time out before filling is complete Press and hold the dispense button for 10 seconds to start again if needed FIG 1 Plumbin...

Page 7: ...ram Switch near main control board to the OFF position On older models without program switch set the Dispense Lockout Switch to the ON position 11 Replace the splash panel and drip tray 12 It will take several hours to create the ice bank required for full dispenser performance During this time some further trickling from the water bath is expected due to expansion caused by ice bank formation Wh...

Page 8: ...e dispenser near the Circuit Board This switch controls power to the water bath pump and relay contacts for the compressor and condenser fan motor Product Dispense Switch Mechanical Switch Machines Pressing and holding switch will initiate product flow from the respective nozzle releasing the switch will stop the flow FIG 10 Product Dispense Switches JDF 4S 44744 2 110813 ...

Page 9: ...tch will stop the flow Momentarily pressing this switch during a timed dispense will stop the flow C Chilled Water Dispense Switch Optional for JDF 4S only Pressing and holding switch will initiate chilled water flow from the nozzle releasing the switch will stop flow FIG 12 Product Dispense Switches JDF 4S OPERATING CONTROLS Continued FIG 13 Dispense Lockout Switch Dispense Lockout Switch This sw...

Page 10: ...9 Place a container under the dispense nozzle s and press the dispense button to confirm that the portion size is set correctly Repeat steps 1 8 if any changes are needed 10 Replace splash panel Note The portion control dispense can be cancelled during a dispense by pressing the dispense button again Note If a portion size is not set for a dispense head while in the portion control set up mode tha...

Page 11: ... 2S press and hold either dispense switch while plugging the dispenser into the power source For the JDF 4S press and hold two left dispense switches while plugging the dispenser into the power source Continue holding dispense switch s until all 4 temperature LED s on the circuit board start flashing slowly this takes about 5 seconds Release dispense switch s 5 Press and release any dispense switc...

Page 12: ...e sanitizing solution and a soft bristle brush 10 Clean the concentrate bottle s inlet adapter s using the sanitizing solution and a soft bristle brush 11 Replace the mixing element s and nozzle s 12 Fill approximately 128 ounces 3 8 L of clean sanitizing solution into clean empty concentrate container s Do not use the sanitizing solution used in step 10 Load the container s into the dispenser 13 ...

Page 13: ...e it on a flat work surface 9 Close the dispenser door 10 Remove the 4 screws securing the pump head 11 Gently pull the pump head apart 12 Gently pull the pump tube from around the pump s rotor 13 Release the clamps securing the old pump tubing to the plastic elbows 14 Pull the plastic elbows from the old pump tubing and discard the old pump tubing 15 Insert the plastic elbows into the new pump tu...

Page 14: ...o concentrate only for 3 seconds 4 Measure the water dispensed Suggested target is 3 ounces 1 ounce per second flow rate 5 Adjust the water flow rate Fig 17 clockwise to increase flow rate counterclockwise to decrease flow rate to the corresponding product mix ratio Chart below provides general brix instructions ADJUSTMENT OPTIONAL SETTINGS P3586 6 Repeat steps 1 through 5 as necessary until the c...

Page 15: ... container must be completely thawed and be within the temperature range of 35 40 degrees F 1 6 4 4 degrees C Product outside of this temperature range especially below will produce an out of brix drink Ambient Concentrates Optional 1 Install an Ambient Concentrate Conversion Kit BUNN O MATIC part number 33699 0002 per the instruc tions provided in the kit 2 Attach the concentrate product hose to ...

Page 16: ... 2 63 2 57 2 53 2 50 2 48 2 45 2 44 2 5 3 75 3 33 3 13 3 00 2 92 2 86 2 81 2 78 2 75 2 73 2 71 2 75 4 13 3 67 3 44 3 30 3 21 3 14 3 09 3 06 3 03 3 00 2 98 3 0 4 50 4 00 3 75 3 60 3 50 3 43 3 38 3 33 3 30 3 27 3 25 3 25 4 88 4 33 4 06 3 90 3 79 3 71 3 66 3 61 3 58 3 55 3 52 3 5 5 25 4 67 4 38 4 20 4 08 4 00 3 94 3 89 3 85 3 82 3 79 3 75 5 63 5 00 4 69 4 50 4 38 4 29 4 22 4 17 4 13 4 09 4 06 4 0 6 0...

Page 17: ...ers are equipped with an optional cold water dispense valve It is recommended to adjust the flow rate upon initial set up of the dispenser The adjustment for the cold water can be located inside the dispenser behind the right service panel The cold water dispense valve is mounted to the frame just above the ice bath Attached to this valve is a needle type adjustment valve Turn the adjustment clock...

Page 18: ...abinet thermistor circuit will flash 2 and 3 LED s 1 time every 3 seconds Shorted cabinet thermistor will turn 2 and 3 LED s on steady This mode disables the cabinet low temperature lockout fault 3 Cabinet Green When cabinet temperature is below 50 degrees F 4 Bath Red When bath temperature is above 34 degrees F Flashes slowly when compressor is in a 6 minute delay period Open bath thermistor circ...

Page 19: ...un under this condition 2 Bath Green When bath temperature is below 34 degrees F 3 Green When the compressor should be ON 4 Cabinet Red When the cabinet temperature is above 50 degrees F Flashes slowly when cabinet temperature exceeds 50 degrees F for 4 hours Dispense functions are locked out under this condition Power down the dispenser to reset Flashes rapidly if dispense is attempted in lockout...

Page 20: ...than ten minutes without a supply of water The use of two wrenches is recommended whenever plumbing fittings are tightened or loosened This will help to avoid twists and kinks in the tubing Make certain that all plumbing connections are sealed and electrical connections tight and isolated WARNING Exercise extreme caution when servicing electrical equipment Unplug the dispenser when servicing excep...

Page 21: ...ter or adequate ventilation and space around machine Checkrefrigerationsystemforleaks and proper charge A Set switch to ON position B Check switch and harness for proper continuity Check all previous items that pre tain to refrigeration or cold water recirculation 1 Compressor ON OFF switch 2 Dirty condenser filter or fins 3 Condenser fan not running 4 Compressor relay not activat ing 5 Compressor...

Page 22: ... valve failed Place switch in ON position Checkswitchandharnessforproper continuity Check for ON position A Compressor relay contacts shorted replace relay B Recirculating pump replace or check for kinked flex line A Check for 120V or 230V power when dispensing If yes replace valve If no check harness for proper continuity Then replace circuit board if needed PROBLEM PROBABLE CAUSE REMEDY 44744 2 ...

Page 23: ...f pump rollers If coun terclockwise replace pump tubing If clockwise wire connection to pump is reversed Switch wires on terminals A Check speed setting on circuit board and increase speed turn clockwise B Check for d c power to pump motor If yes replace motor assy If no check harness for proper con tinuity Then replace circuit board if needed Water solenoid Concentrate out Product pump not pumpin...

Page 24: ...ng or broken Dispense solenoid Some expansion normal May fill drip tray during initial ice block formation Inspect or replace fittings clamps o rings solenoidsandquickdiscon nect fittings NOTE Dispense deck area slopes to drain tube that leads to the drip tray Installwaterpressureregulatorand reduce to 50 psi A Check all internal water connec tions B Check internal plumbing con nections Check for ...

Page 25: ...psi or higher and a minimum flow rate of 3 fl oz sec Over 100 psi install a pressure regulator and set to 50 psi A Perform3secondwaterdispense test Factory setting is 1 0 oz sec Acceptable water flow rate is 0 8 to 1 5 oz sec depending on the mix ratio 4 1 B Adjust water to proper mix ratio Once water is set adjust motor speed to achieve brix Checkforproperbrixratioperprod uct using Total Dispense...

Page 26: ...26 COOLANT SCHEMATIC DIAGRAM CONDENSER SUCTION ACCUMULATOR COMPRESSOR EVAPORATOR PROCESS TUBE FILTER DRYER 44744 2 062912 ...

Page 27: ...A B L1 WHI GRN BRN WHI A B 220 230V MODELS GRN YEL N L1 GND BRN BLU EMI FILTER 120 VOLTS AC or 220 230 VOLTS AC 2 WIRE SINGLE PHASE J1 1 J1 3 J5 1 J5 5 J4 1 J4 5 J3 1 J3 5 J2 1 J2 5 PUSH BUTTON OPTION Models with Membrane Switches Models with Mechanical Switches Models with Lited Doors STATIC SHIELD DISPENSE STATION 2 STOP PLUS LARGE MEDIUM SMALL STATIC SHIELD DISPENSE STATION 1 DISPENSE STATION 2...

Page 28: ...U EMI FILTER 120 VOLTS AC or 220 230 VOLTS AC 2 WIRE SINGLE PHASE J1 1 J1 3 J5 1 J5 5 J4 1 J4 5 J3 1 J3 5 J2 1 J2 5 PUSH BUTTON OPTION Models with Membrane Switches Models with Mechanical Switches STATIC SHIELD DISPENSE STATION 2 STOP PLUS LARGE MEDIUM SMALL STATIC SHIELD DISPENSE STATION 1 DISPENSE STATION 2 DISPENSE STATION 1 STOP PLUS LARGE MEDIUM SMALL DISPENSE STATIC SHIELD DISPENSE STATIC SH...

Page 29: ...I VIO WHI SOL J11 1 J11 5 J6 1 J6 5 BLK RED BLU YEL ORN BLK RED BLU YEL ORN AUXILLARY CONTROL BOARD J1 1 DISPENSE DISPENSE STATIC SHIELD STATIC SHIELD COLD WATER SWITCH DISPENSE STATION 4 J1 3 J5 1 J5 5 J4 1 J4 5 J3 1 J3 5 J2 1 J2 5 DISPENSE STATIC SHIELD COLD WATER SWITCH STOP PLUS LARGE MEDIUM SMALL STATIC SHIELD PUSH BUTTON OPTION STATIC SHIELD DISPENSE STATION 3 STOP PLUS LARGE MEDIUM SMALL ST...

Page 30: ... RED BLU YEL ORN BLK RED BLU YEL ORN AUXILLARY CONTROL BOARD J1 1 DISPENSE DISPENSE STATIC SHIELD STATIC SHIELD COLD WATER SWITCH DISPENSE STATION 4 J1 3 J5 1 J5 5 J4 1 J4 5 J3 1 J3 5 J2 1 J2 5 DISPENSE STATIC SHIELD COLD WATER SWITCH STOP PLUS LARGE MEDIUM SMALL STATIC SHIELD PUSH BUTTON OPTION STATIC SHIELD DISPENSE STATION 3 STOP PLUS LARGE MEDIUM SMALL STATIC SHIELD DISPENSE STATION 2 STOP PLU...

Page 31: ...nozzle as shown See Initial Fill 8 Place the program switch in the ON po sition 9 Hold the dispense switch until water be gins to flow into the tank approx 10 sec onds When tank is full water will begin pour out of the overflow tube Press the dispense button to stop the flow of water 10 Place the refrigeration switch in the ON position and the program switch in the OFF position 11 Insert juice con...

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