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Bunn JDF-4 manual

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Table of contents for the manual

  • Page 1

    JDF-4 S/N 0005473 & UP ! W A RN I N G Refrigeratio n Compress o r and Cond enso r Fan Motor only INST ALLA TION & OPERA TING MANU AL BUNN-O-MA TIC CORPORA TION POST OFFICE BO X 3227 SPRINGFIELD , ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 T o ensure you have the latest revision of the manual or to obtain the illustrated [...]

  • Page 2

    2 38218.1 020608 BUNN-O-MA TIC COMMERCIAL PRODUCT WARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) All equipment other than as specified below: 2 years parts and 1 year labor . 2) Electronic circuit and/or control boards: parts and labor for 3 years. 3) Compressors on refrigeration equipment: 5 years pa[...]

  • Page 3

    3 USER NOTICES Carefully read and follow all notices on the equipment and in this manual. They were written for your protec- tion. All notices are to be kept in good condition. Replace any unreadable or damaged labels. 27442.0000 00986.0002 33461.0000 CHARGE T ype R134A, Amount 10 oz (283 gm) Design Pressures: High 335 psi (23 bar) (2.31 MPa) Low 8[...]

  • Page 4

    4 INITIAL SET -UP CAUTION: The dispenser is ver y heavy! Use care when lifting or moving it. Use at least two people to lift or move the dispenser . Place the dispenser on a sturdy counter or shelf able to support at least 230 lbs. (104.3 kg). The JDF-4 is designed for indoor use only . Set the dispenser on the counter where it will be used. The JD[...]

  • Page 5

    5 PLUMBING REQUIREMENTS This dispenser must be connected to a COLD W A TER system with operating pressure between 20 and 100 psi (138 and 690 kPa). This water sour ce must be capable of producing a minimum flow rate of 3 fluid ounces (88.7 milliliters) per second. A shut off valve should be installed in the line before the dispenser . Install a r[...]

  • Page 6

    6 OPERA TING CONTROLS FIG 2 Refrigeration Switch FIG 3 Sanitize Switch & Water V alves A. Sanitize Switch B. Water Bath V alve C. Main Water V alve (Early Models) C P2262.60 P2479 A B 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 [...]

  • Page 7

    7 OPERA TING CONTROLS (cont.) FIG 4 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. Chilled Water Dispense Switch Pressing and holding switch will initiate chilled water flow from the nozzle; releasing the switch will [...]

  • Page 8

    8 INITIAL FILL CAUTION: The dispenser must be disconnected from the power source throughout the initial fill except when specified in the instructions. 1. Remove drip tray assembly and splash panel from the dispenser . Set the drip tray back into place. 2. Ensure that the Main W ater V alve (Early models) and the W ater Bath V alve Fig 3, are tur[...]

  • Page 9

    9 INITIAL FILL (cont) Ambient Concentrates (Optional) 1. Install an Ambient Concentrate Conversion Kit (BUNN-O-MA TIC part number 33699.0000) per the instruc- tions provided in the kit. 2. Attach the concentrate product hose to the appropriate concentrate line located behind the dispenser’ s splash panel. 3. Attach the other end of the product ho[...]

  • Page 10

    10 CLEANING & PREVENTIVE MAINTENANCE General Cleaning and Sanitizing Procedures Note: The Bunn Juice Dispenser incorporates a rinse reminder feature which lights the rinse led on the front panel when it is time to rinse. See dip switch function list to activate this feature. Daily: Rinse Procedure T ools required: 32 oz. (946 ml) minimum empty [...]

  • Page 11

    11 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” [...]

  • Page 12

    12 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 T ubing CLEANING (cont) 38218.1 012207 NOTE: High volume applications may require tubing changes every 6 months. 1. Open dispenser door . 2. Remove all product cont[...]

  • Page 13

    13 ADJUSTMENT & OPTIONAL SETTINGS T otal Dispense Ratio Set Up Procedure 1. Adjust water flow as described in Water Flow T esting 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 b[...]

  • Page 14

    14 4. At the end of the 5 second period, the selected position will dispense water (no concentrate) for only 3 sec- onds. 5. Measure the water dispensed. 6. Adjust the water flow rate Fig 7, (clockwise to increase flow rate; counter clockwise to decrease flow rate) to the corresponding product mix ratio as follows: 7. Repeat steps 3 through 6 as[...]

  • Page 15

    15 3. T o decrease the pump speed, press and hold the left-hand “Hidden Switch” (half-filled cir cle) and then mo- mentarily press the “Product Dispense Switch (“+/STOP Switch” for portion control dispensers). Each time the “Product Dispense” (“+/STOP”) Switch is pressed, the motor speed is decreased by one step (5 RPM.) Note tha[...]

  • Page 16

    16 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. Enter a “Lockout” password as follows: a) Press and hold the left hand “Hidden Switch” (half filled circle) for mode #1, the right hand “Hidde[...]

  • Page 17

    17 ADJUSTMENT & OPTIONAL SETTINGS (cont) Password Protection The programming modes and ser vice lockout function may be password protected to prevent accidental or unauthorized access to these features. The dispenser is shipped from the factory with a password of “0” (no password.) 1. Enter the “Pump Speed Programming” mode by simultane[...]

  • Page 18

    18 Dispense Fault List “REFILL” indicator Beeper Fault 2 flashes 2 beeps Dispense station locked out. 3 flashes 3 beeps DISPENSE/RINSE sensing fault. 4 flashes 4 beeps DISPENSE/RINSE knob mis-positioned. 5 flashes 5 beeps Pump motor stalled/speed sensor inoperative. All “REFILL” 3 beeps Dispenser locked out. indicators flash 3 times Co[...]

  • Page 19

    19 Dip Switch Function List Dip Switch Controls Off On 1 “REFILL” indicator when “concentrate out” is detected. Inactive Active 2 Lockout dispense components when “concentrate out” is detected. Inactive Active ( Note ) 3 Number of positions that can dispense/rinse simultaneously . 3 2 4 Rinse timer Off On 5 Audio feedback during dispens[...]

  • Page 20

    20 Function # 0 1 2 3 4 101 102 103 104 7 8 9 10 11 12 13 14 15 16 17 18 27 28 29 30 31 32 33 34 50 51 52 53 54 55 75 76 77 78 99 100 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[...]

  • Page 21

    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 T echnical Ser vice Department. • Inspection, testing, and repair of electrical equipment should be per formed only by [...]

  • Page 22

    22 TROUBLESHOOTING (cont.) Check for "ON" position or no con- tinuity - replace switch. Clean or replace condenser filter . Replace fan motor or check fan blades for obstructions. Check compressor relay coil for 120vac. NOTE: Always check power with coil attached. If no 120vac - replace board. If yes, 120vac - replace relay . Note: Relay[...]

  • Page 23

    23 TROUBLESHOOTING (cont.) 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 1. Bottle adapter switch mem - brane A) Dispense/Rinse switch mem - brane shorted out simultan[...]

  • Page 24

    24 TROUBLESHOOTING (cont.) Dispense station concentrate only Dispense station water only Dispense starts then stops or "refill" flashes and beeps 5 times. Replace solenoid (24vdc) or check wire connection between water valve and main control board. Rotate knob to dispense position. Check for variable dc voltage when corresponding dispen[...]

  • Page 25

    25 TROUBLESHOOTING (cont.) 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 1. Initial fill/setup 2. Dispense deck 3. W ater pressure greater than 100psi 1. Bath tank overflow . 2. Condensation from cabinet cool- ing [...]

  • Page 26

    26 TROUBLESHOOTING (cont.) Uni t is not work ing and n o beep /lig ht fault codes Difficulty brixing and/or weak bev- erage 1. Step-down transformer . 2. Main control board. 1. Product viscosity or too cold. 2. Low water pressure. 3. High water pressure. 4. Dispense valve adjustment set- ting. 5. Brix ratio. Check for 120/24 vac. If no 24vac readi[...]

  • Page 27

    27 Difficulty brixing and/or weak bev- erage Difficulty brixing bag-in-box 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 Inspect, clean, or replace tubing and pump rotor/rollers for ease of rotation. Replace bottle adapter as[...]

  • Page 28

    28 COOLANT SCHEMA TIC DIAGRAM CONDENSER SUCTION ACCUMULA TO R COMPRESSOR EV APORA TO R PROCESS TUBE FIL TER DRYER 38218.1 030306[...]

  • Page 29

    29 J3-1 J3-2 J1-1 J1-5 J1-10 C O N T R O L P C B O A R D J1-18 J7-1 J7-5 J7-10 J7-16 J8-1 J8-8 J6-1 J6-6 J6-12 RIGHT LAMP ASSY . LEFT LAMP ASSY . GRN GRN GRN BLU BRN/BLK RED/BLK RED/BLK GRY WHI BLK LIMIT THERMOST AT K2 K2 COM P. COMPRESSOR ASSEMB LY + – RECT TRANSFORMER WHI/BLU WHI WHI WHI WHI/RED WHI/RED BLK BLU BLU RED/BLK RED/BLK GRY WH I WH I[...]

  • Page 30

    30 J3-1 J3-2 J1-1 J1-5 J1-10 C O N T R O L P C B O A R D J1-18 J7-1 J7-5 J7-10 J7-16 J8-1 J8-8 J6-1 J6-6 J6-12 SOL SOL #4 DISPENSE SOL ICE WA TER DISPENSE TA N RED/BLK RED/BLK RED/BLK WHI/YEL WHI/BLU SOL #2 DISPENSE #3 DISPENSE RED/BLK WHI/ORN SOL #1 DISPENSE #4 RINSE & DISPENSE LIMIT #2 RINSE & DISPENSE LIMIT #3 RINSE & DISPENSE LIMIT [...]

  • Page 31

    31 J3-1 J3-2 J1-1 J1-5 J1-10 C O N T R O L P C B O A R D J1-18 J7-1 J7-5 J7-10 J7-16 J8-1 J8-8 J6-1 J6-6 J6-12 J5-1 J5-5 J5-10 J5-15 J5-19 J4-1 J4-5 J4-10 J4-14 J9-1 J9-6 RED WHI GRN/WHI GRN/BLK ORN/BLK WHI/BLK BLU/WHI BLK/WHI RED/BLK RED/WHI ORN GRN BLU BLU/BLK BLK RED WHI GRN/WHI GRN/BLK ORN/BLK WHI/BLK BLU/WHI BLK/WHI RED/BLK RED/WHI ORN GRN BLU[...]

  • Page 32

    32 J3-1 J3-2 J1-1 J1-5 J1-10 C O N T R O L P C B O A R D J1-18 J7-1 J7-5 J7-10 J7-16 J8-1 J8-8 J6-1 J6-6 J6-12 RIGHT LAMP ASSY . LEFT LAMP ASSY . GRN 120V MODELS GRN GRN N AB AB AB L1 BLU BRN/BLK RED/BLK RED/BLK RED/BLK GRY WHI BLK LIMIT THERMOST AT K2 K2 COMP . COMPRESSOR ASSEMB LY + – RECT TRANSFORMER WHI/BLU WHI WHI WHI WHI/RED WHI/RED BLK BLU[...]