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Bunn JDF-4S manual

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Table of contents for the manual

  • Page 1

    INST ALLA TION & OPERA TING MANUAL BUNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 T o obtain the Illustrated Parts Catalog, visit the Bunn-O-Matic website, at www.bunn.com. This is absolutely FREE, and the quickest way to obtain the catalog. Contact Bunn-O-Matic Corpor[...]

  • Page 2

    2 BUNN-O-MA TIC COMMERCIAL PRODUCT W ARRANTY 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 parts and 1 year[...]

  • 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 33461.0001 JDF-2S CHARGE T ype R134A, Amount 9 oz (255 gm) Design Pressures: High 255 psi (15.5 bar) Low 36 p[...]

  • Page 4

    4 PLUMBING REQUIREMENTS This dispenser must be connected to a COLD WA TER system with operating pressure between 20 and 100 psi (138 and 690 kPa). This water source 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 reg[...]

  • Page 5

    5 DOOR COVER INST ALLA TION 1. Install door cover by first plugging the door harness connector into the machine harness connector located at the bottom of the machine door . 2. Install door cover . 3. Secure the door cover using 5 screws provided. P3578 P3577 P3579 39992 042007 JDF-2S JDF-2S JDF-2S JDF-4S JDF-4S JDF-4S P3578 P3577 P3840[...]

  • Page 6

    6 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 . Replace the drip tray . 2. Connect the water source to the back of the dispenser . 3. Pull the fill tube from the dispenser , re[...]

  • Page 7

    7 FIG 5 Initial Fill Connection - JDF-2S P3582 7. T urn ON the refrigeration switch at the back of the dispenser . This will start the water bath pump circula- tion. 8. Check water level in the overflow tube and top off the tank if necessary (Step 5). 9. Disconnect the fill tube and allow excess water to drain into the drip tray . Replace the plu[...]

  • Page 8

    8 LOADING Frozen Concentrates 1. Thaw the frozen concentrate in a refrigerated 35-40 degrees F (1.6-4.4 degrees C) environment for 36 to 48 hours before use. 2. Thoroughly mix the thawed concentrate by vigorously shaking the product container . 3. Open the dispenser door . 4. Prior to placing the product container in the dispenser , make sure that [...]

  • Page 9

    9 OPERA TING CONTROLS FIG 7 Refrigeration Switch - JDF-2S FIG 9 Product Dispense Switches - JDF-2S DISPENSER USE Press and Hold Dispensing: 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. Refrigeration Switch The re[...]

  • Page 10

    10 OPERA TING CONTROLS (Continued) Portion Control Option The dispenser is also equipped with a portion control option. The following steps will guide you through the set up process for this option. Portion control can be set on one or all dispense heads as needed. 1. Unplug dispenser from power source. 2. Place Dispense Lockout switch in the OFF p[...]

  • Page 11

    11 P3585 FIG 12 T emperature LEDs JDF-2S FIG 13 T emperature LEDs JDF-4S Procedure to return all dispense heads back to Push and Hold mode: 1. Unplug dispenser from power source. 2. Place Dispense Lockout switch in the OFF position. 3. Remove drip tray and splash panel from the front of the machine then replace the drip tray . 4. For the JDF-2S, pr[...]

  • Page 12

    12 CLEANING & PREVENTIVE MAINTENANCE Daily: Rinse Procedure T ools required: 32 oz. (946 ml) minimum empty container 1. Open refrigerated compartment door and remove product containers. 2. Fill a clean container with warm water and place the container into the cabinet and press it firmly into the bottle adapter opening. 3. Close the door , pla[...]

  • Page 13

    13 39992 042007 CLEANING (cont) Monthly: Clean Condenser Coils 1. Use a soft bristle brush to clean the build up of dirt in the condenser . NOTE: Some models include a removable filter that can be cleaned in warm soapy water . Annually: Replace Pump T ubing 1. Open dispenser door . 2. Remove all product containers and place them in a refrigerated [...]

  • Page 14

    14 6. Repeat steps 1 through 5 as necessary until the correct water flow rate is achieved. 7. Repeat steps 1 through 5 for the remaining dispense positions. 8. Place the Dispense Lockout switch back into the ON position. Pump Speed Adjustment 1. Disconnect the dispenser from the power source. 2. Remove the drip tray . 3. Remove the two screws secu[...]

  • Page 15

    15 T otal Dispense Ratio Set Up Procedure 1. Adjust water flow as described in W ater Flow T esting and Adjustment . Record water output setting for later reference on each dispense head. 2. Place the Dispense Lockout switch in the OFF position. 3. Place a measuring container under the dispense nozzle, press and release the DISPENSE button 6 times[...]

  • Page 16

    16 ADJUSTMENT & OPTIONAL SETTINGS (cont) Dispenser Lockout Dispense functions of the dispenser can be turned-off to prevent unauthorized use of the dispenser , while keeping the refrigeration system running. 1. Locate the Dispense Lockout switch at the bottom front of the dispenser behind the drip tray . 2. Place the switch in the OFF position [...]

  • Page 17

    17 Circuit Board LED Indicators - JDF-2S LED # LED Color Illuminates: 1 Green When the compressor should be ON. 2 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. Flashe[...]

  • Page 18

    18 39992 042007 FIG 16 JDF-4S FUNCTION LIST (Continued) Circuit Board LED Indicators - JDF-4S LED # LED Color Illuminates: 1 Bath Red When bath temperature is above 34 degrees F . Flashes slowly when compressor is in a 6 minute delay period. Open bath thermistor circuit will flash #4 and #5 LED’ s 1 time ever y 3 seconds. The compressor will not[...]

  • Page 19

    19 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 20

    20 TROUBLESHOOTING (cont.) Check for "ON" position or no con- tinuity - replace switch. Clean filter and fins or replace con- denser filter . (Filter not supplied on some machines). A) Check for 120V or 230V AC. Re- place fan motor or check fan blades for obstructions. B) Check compress or LED on cir cuit board. If ON, relay coil shoul[...]

  • Page 21

    21 TROUBLESHOOTING (cont.) Dispense station not working All stations dispense concentrate only 1. Dispense Lockout switch set to OFF position. 2. Dispense switch failed Main water supply Frozen bath Inlet water valve failed Place switch in ON position. Che ck swit ch and harn ess for prop er continuity . Check for ON position. A) Compressor relay/c[...]

  • Page 22

    22 TROUBLESHOOTING (cont.) Dispense station concentrate only Dispense station water only Replace solenoid (24vdc) or check wire connection between water valve and main control board. Replace refill concentrate container or BIB Check for proper counter clockwise rotation of pump rollers. If coun- terclockwise, replace pump tubing. If clockwise, wir[...]

  • Page 23

    23 TROUBLESHOOTING (cont.) Water leak filling drip tray or around dispense deck area Water leaking beneath machine Erratic spray during dispense Dispense nozzle dripping water 1. Initial fill/setup 2. Dispense deck 3. W ater pressure greater than 100psi 1. Bath tank overflow . 2. Condensation from cabinet cool- ing coil. Dispense nozzle mixer mi[...]

  • Page 24

    24 TROUBLESHOOTING (cont.) Unit is not working Difficulty brixing and/or weak bev- erage Difficulty brixing and/or weak bev- erage Difficulty brixing bag-in-box 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. [...]

  • Page 25

    25 COOLANT SCHEMA TIC DIAGRAM CONDENSER SUCTION ACCUMULA TOR COMPRESSOR EV APORA TOR PROCESS TUBE FIL TER DRYER 39992 042007[...]

  • Page 26

    26 39992 042007 J6-1 J6-3 C O N T R O L P C B O A R D J5-1 J5-4 J2-1 J2-6 GRN LIMIT THERMOST A T K2 K2 COMP . COMPRESSOR ASSEMBL Y WHI/ORN LEFT DISPENSE RIGHT DISPENSE LEFT DISPENSE RIGHT DISPENSE YEL YEL W H I / VI O RECIR. PUMP BRN WHI BLK J1-1 J1-5 WHI J3-1 J3-2 WHI/BLK ORN WHI/VIO WHI/ORN VIO RED RED WHI/RED BLK WHI RED/BLK RED/BLK YEL WHI/BLU [...]

  • Page 27

    27 39992 042007 J6-1 J6-3 C O N T R O L P C B O A R D J5-1 J5-4 J2-1 J2-6 GRN LIMIT THERMOST AT K2 K2 COMP . COMPRESSOR ASSEMBL Y WHI/ORN ST ATION 1 DISPENSE ST ATION 2 DISPENSE ST ATION 1 DISPENSE ST ATION 2 DISPENSE YEL YEL W HI /V I O RECIR. PUMP BRN WHI BLK J1-1 J1-5 WHI J3-1 J3-2 WHI/BLK ORN WHI/VIO WHI/ORN VIO RED RED WHI/RED BLK WHI RED/BLK [...]

  • Page 28

    28 1. Install door cover by first plugging the door harness connector into the machine harness connector located at the bottom of the machine door . 2. Install door cover . 3. Secure the door cover using 5 screws provided. 4. Place refrigeration switch in the OFF po- sition. 5. Connect water supply to machine. (See Plumbing Requirements) 6. Connec[...]