Bunn JDF-2N Installation And Operating Manual
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Bunn JDF-2N Installation And Operating Manual

Bunn juicer operating manual jdf-2s, jdf-2n
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JDF-2
S/N JDF0005473 & UP
DISCONTINUED VERSION
The information in this manual
is no longer current.
INSTALLATION & OPERATING MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601
FAX: (217) 529-6644
To ensure you have the latest revision of the manual or to obtain the illustrated parts catalog, 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. Contact Bunn-O-
Matic Corporation at 1-800-286-6070 to obtain a paper copy of the required Illustrated Parts Catalog mailed via U.S. Postal Service.
www.bunn.com
38310.0000F
03/08 ©2005 Bunn-O-Matic Corporation

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  • Page 1 FAX: (217) 529-6644 To ensure you have the latest revision of the manual or to obtain the illustrated parts catalog, 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. Contact Bunn-O- Matic Corporation at 1-800-286-6070 to obtain a paper copy of the required Illustrated Parts Catalog mailed via U.S.

  • Page 2: Warranty

    SOLE OPTION AS SPECIFIED HEREIN, TO REPAIR, REPLACEMENT OR REFUND. In no event shall BUNN be liable for any other damage or loss, including, but not limited to, lost profits, lost sales, loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute equipment, facilities or services, or any other special, incidental or consequential damages.

  • Page 3: Table Of Contents

    Warranty ...2 Introduction ...3 User Notices ...3 Initial Set-Up & Electrical Requirements ...4 Plumbing Requirements ...4 CE Requirements ...4 Operating Controls ...7 Initial Fill ...5 Dispenser Use ...9 Cleaning ...10 Adjustments & Optional Settings ...13 Function Lists ...18 Troubleshooting ...21 Coolant Diagram ...28 Schematic Wiring Diagram ...29 USER NOTICES...

  • Page 4: Initial Set-Up & Electrical Requirements

    Caution: MAXIMUM RINSE WATER TEMPERATURE: 170 degrees F (76.6 degrees C) Use BUNN-O-MATIC tubing, part number 34325.10_ _ (see Illustrated Parts Catalog for complete part number) for hot water connection. The rinse water operating pressure must be between 20 and 100 psi (138 and 690 kPa). A shut off valve should be installed in the line before the dispenser.

  • Page 5: Initial Fill

    BUNN-O-MATIC (part number 34325.10_ _ [see Illustrated Parts Catalog for complete part number.]) BUNN-O-MATIC does not recommend the use of saddle valves to install the dispenser. The size and shape of the hole(s) made in the supply line(s) by saddle valves may restrict water flow.

  • Page 6: Plumbing Hookup

    “out of brix” drink. Ambient Concentrates (Optional) 1. Install an Ambient Concentrate Conversion Kit (BUNN-O-MATIC part number 33699.0001) per the instruc- tions provided in the kit. 2. Attach the concentrate product hose to the appropriate concentrate line located at the rear of the dispens- 3.

  • Page 7: Operating Controls

    OPERATING CONTROLS Refrigeration Switch The refrigeration switch is located on the top of the dispenser near the left rear corner. This switch controls power to the compressor and the condenser fan motor. P2261 FIG 3 Refrigeration Switch Sanitize Switch The sanitize switch is located behind the drip tray in the lower left corner of the chassis.
  • Page 8 OPERATING CONTROLS (cont.) FIG 5 Press and Hold Models A. Product Dispense Switch Pressing and holding switch will initiate product flow from the respective nozzle; releasing the switch will stop the flow. B. Hidden Switch These switches are used to access, change and exit the dispenser program mode. C.

  • Page 9: Dispenser Use

    Press and Hold Models (Refer to Fig 5) 1. Place a cup on the drip tray beneath the desired dispensing nozzle. 2. Press and hold the “Product Dispense” switch until the beverage reaches the desired level, then release. Portion Control Models (Refer to Fig 6) 1.

  • Page 10: Cleaning & Preventive Maintenance

    3. Close the refrigerated compartment’s door. 4. Place the empty container under the dispense nozzle to catch the rinse water. (CAUTION: THE BUNN JUICE DISPENSER CAN BE PLUMBED FOR A HOT WATER RINSE. RINSE WATER CAUGHT IN THIS STEP SHOULD BE HANDLED WITH EXTREME CARE.) 5.

  • Page 11: Cleaning

    CLEANING (cont) 6. Select the dispense stations by pressing the “Dispense Switch” for that station. Use the “+/Stop Switch” for portion contol dispensers. The “REFILL” indicator will light and the beeper will sound for the dispense head selected. 7. Once the dispense heads have been selected, press and hold the “Sanitize Switch” for 5 seconds again to initiate the automatic cycle.
  • Page 12 CLEANING (cont) Monthly: Clean Condenser Air Filter 1. Remove the condenser air filter located on the rear of the dispenser. 2. Using a water spray, clean the air filter. Annually: Replace Pump Tubing 39689.0000 Tube Kit JDF-2S & JDF-4S 39687.0000 Tube Assembly NOTE: High volume applications may require tubing changes every 6 months.

  • Page 13: Adjustments & Optional Settings

    Total Dispense Ratio Set Up Procedure 1. Adjust water flow as described in Water Flow Testing and Adjustment. Record water output setting for later reference on each dispense head. 2. Enter program mode by simultaneously pressing both hidden switches. 3. Press and hold the dispense button, you will hear 5 beeps then two short beeps, continue holding until you hear three short beeps.
  • Page 14 “PROGRAM” indicator begins flashing. 2. Place a graduated measuring cup or the large chamber of the empty brixing cup (BUNN-O-MATIC part number 33095.0000) under the ap- propriate dispense nozzle. 3. Press and hold the desired “Product Dispense Switch” Fig 5 (“+/Stop Switch”...
  • Page 15 ADJUSTMENT & OPTIONAL SETTINGS (cont) Pump Speed Programming 1. Enter the “Pump Speed Programming” mode by simultaneously pressing both “Hidden Switches”. Note that the beeper sounds twice and that the “PROGRAM” indicator begins flashing. 2. To increase the pump speed, press and hold the right-hand “Hidden Switch” (filled circle) and then momen- tarily press the “Product Dispense Switch”...
  • Page 16 ADJUSTMENT & OPTIONAL SETTINGS (cont) Dispenser Lockout Dispense and Rinse functions of the dispenser can be electronically locked-out to prevent unauthorized use of the dispenser, while keeping the refrigeration system running. 1. Enter the “Pump Speed Programming” mode by simultaneously pressing both “Hidden Switches”. Note that the beeper sounds twice and that the “PROGRAM”...
  • Page 17 ADJUSTMENT & OPTIONAL SETTINGS (cont) 3. To remove a dispense station from “Service Lockout,” press and hold either “Hidden Switch” and the desired dispense station “Product Dispense” (“+/Stop”) switch for 10 seconds. 4. At the end of the 10 second period, the beeper will sound a double tone and the dispense position will be enabled.
  • Page 18 Dispense Fault List “REFILL” indicator Beeper 2 flashes 2 beeps 3 flashes 3 beeps 4 flashes 4 beeps 5 flashes 5 beeps All “REFILL” 3 beeps indicators flash 3 times Cooling Fault List Fault Code “COOLING” indicator 8 flashes every 5 seconds 7 flashes every 5 seconds...
  • Page 19 Dip Switch Function List Dip Switch Controls “REFILL” indicator when “concentrate out” is detected. Lockout dispense components when “concentrate out” is detected. Number of positions that can dispense/rinse simultaneously. Rinse timer Audio feedback during dispenses. Future use. Note: When dip switch 2 is in the “on” position, the “REFILL” indicator is active, regardless of dip switch 1 position.

  • Page 20: Function Lists

    FUNCTION LIST Function # Description Enter Password Set Pump 1 RPM (Concentrate A) Set Pump 2 RPM (Concentrate A) Set Pump 3 RPM (Concentrate A) Set Pump 4 RPM (Concentrate A) Set Pump 1 RPM (Concentrate B) Set Pump 2 RPM (Concentrate B) Set Pump 3 RPM (Concentrate B) Set Pump 4 RPM (Concentrate B) Station 1 Large Cup Dispense Time (seconds)

  • Page 21: Troubleshooting

    A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic Technical Service Department. • Inspection, testing, and repair of electrical equipment should be performed only by qualified service person- nel.
  • Page 22 TROUBLESHOOTING (cont.) PROBLEM Refrigeration All dispense stations not working or all water & refill LED's flash and beep 3 times. Note: Cooling failure or excessive bath and cabinet temperatures for m ore than 4 hours will result in touchpad lockout or no dispense. Dispenser Locked Out All dispense stations not working or all water &...
  • Page 23 TROUBLESHOOTING (cont.) PROBLEM Dispense station not working "refill" LED and beep code. A) 3-Beep - Dispense/Rinse sens- ing fault. B) 4-Beep - Dispense/Rinse knob mis-positioned. Refill LED not extinguishing All stations dispense concentrate only PROBABLE CAUSE 1. Bottle adapter switch mem- brane A) Dispense/Rinse switch mem- brane shorted out simultaneously.
  • Page 24 TROUBLESHOOTING (cont.) PROBLEM Dispense station concentrate only Dispense station water only Dispense starts then stops or "refill" flashes and beeps 5 times. PROBABLE CAUSE Water solenoid In rinse position NOTE": Water will dispense for 4 seconds. Main control board Dispense motor not running RPM sensor REMEDY Replace solenoid (24vdc) or check...
  • Page 25 TROUBLESHOOTING (cont.) PROBLEM Water leak filling drip tray or around dispense deck area Water leaking beneath machine Erratic spray during dispense Dispense nozzle dripping water Can't access programming PROBABLE CAUSE 1. Initial fill/setup 2. Dispense deck 3. Water pressure greater than 100psi 1.
  • Page 26 TROUBLESHOOTING (cont.) PROBLEM Unit is not working and no beep/light fault codes Difficulty brixing and/or weak bev- erage PROBABLE CAUSE 1. Step-down transformer. 2. Main control board. 1. Product viscosity or too cold. 2. Low water pressure. 3. High water pressure. 4.
  • Page 27 TROUBLESHOOTING (cont.) PROBLEM Difficulty brixing and/or weak bev- erage Difficulty brixing bag-in-box PROBABLE CAUSE 1. Pump tubing. 2. Bottle adapter assembly leaking NOTE: Leaking water into con- centrate bottle during rinse of any station. 3. Use of portable water pump. Vacuum leak REMEDY Inspect, clean, or replace tubing...

  • Page 28: Coolant Diagram

    COOLANT SCHEMATIC DIAGRAM 38310 010406...

  • Page 29: Schematic Wiring Diagram

    SCHEMATIC WIRING DIAGRAM BLU/BLK CONDENSOR FAN BLU/BLK MOTOR COMPRESSOR ASSEMBLY LIMIT THERMOSTAT BLU/BLK COMP. PUMP PUMP WHI/ORN WHI/VIO SANITIZE SWITCH BEEPER GRN/YEL WHI/RED RECIR. PUMP WHI/BLK WHI/RED CABINET THERMISTOR WATER BATH THERMISTOR #1 REFILL #2 REFILL SENSOR SENSOR #1 RINSE & #2 RINSE &...
  • Page 30 30-120 VDC PUMP PUMP 24 VDC INPUT, 0/5 VDC SWITCHING OUTPUT SCHEMATIC WIRING DIAGRAM JDF-2 DISPENSE DECK CIRCUIT #1 REFILL #2 REFILL SENSOR SENSOR #1 RINSE & #2 RINSE & DISPENSE LIMIT DISPENSE LIMIT RINSE RINSE DISPENSE DISPENSE #1 DISPENSE #2 DISPENSE WHI/VIO RED/BLK...
  • Page 31 J6-1 J6-6 J6-12 J3-1 J3-2 J1-1 J1-5 J1-10 J1-18 SCHEMATIC WIRING DIAGRAM JDF-2 CONTROL PANEL CIRCUIT SWITCH UNIT ASSEMBLY (Push Button Control models) SWITCH UNIT ASSEMBLY (Portion Control Models) J9-1 J9-6 J8-1 J8-8 RED/BLK J7-1 GRN/WHI BLU/WHI BLK/WHI J7-5 RED/WHI J7-10 BLU/BLK GRN/BLK...
  • Page 32 WHI/GRN BLU/BLK BRN/BLK CONDENSOR FAN BLU/BLK MOTOR COMPRESSOR ASSEMBLY LIMIT THERMOSTAT BLU/BLK COMP. SCHEMATIC WIRING DIAGRAM JDF-2 REMAINING CIRCUITS SANITIZE SWITCH 24 VDC 5 VDC 24 VDC BEEPER GRN/YEL WHI/RED RECIR. PUMP 120 VAC or 230 VAC WHI/BLK WHI/RED CABINET THERMISTOR WATER BATH THERMISTOR...

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