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Bunn JDF-2S manual

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Table of contents for the manual

  • Page 1

    INST ALLA TION & OPERA TING MANUAL JDF-2S Silver Series BUNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 www .bunn.com 38945.0000F 01/07 ©2006 Bunn-O-Matic Corporation T o obtain the Illustrated Parts Catalog, visit the Bunn-O-Matic website, at www .bunn.com. This is ab[...]

  • 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[...]

  • 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 38945 031406[...]

  • Page 6

    6 FIG 3 Initial Fill Connection INITIAL FILL CAUTION: The dispenser must be disconnected from the power source throughout the initial fill except when speci- fied 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 ?[...]

  • Page 7

    7 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 8

    8 OPERA TING CONTROLS FIG 4 Refrigeration Switch FIG 5 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 refrigeration switch is located on the rear of[...]

  • Page 9

    9 OPERA TING CONTROLS (Continued) Portion Control Option The JDF-2S 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[...]

  • Page 10

    10 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 11

    11 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 38945 012207 1. Open dispenser door . 2. Remove all product containers and place them in a refrigerated [...]

  • Page 12

    12 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 13

    13 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. 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 14

    14 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 15

    15 Circuit Board LED Indicators 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. Flashes rapidly[...]

  • Page 16

    16 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 Service Department. • Inspection, testing, and repair of electrical equipment should be performed only by qu[...]

  • Page 17

    17 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 compres sor LED on circ uit board. If ON, relay coil shoul[...]

  • Page 18

    18 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 swi tc h and harn es s for prope r continuity . Check for ON position. A) Compressor relay[...]

  • Page 19

    19 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 counterclockwise rotation of pump rollers. If coun- terclockwise, replace pump tubing. If clockwise, wire[...]

  • Page 20

    20 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 21

    21 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 22

    22 COOLANT SCHEMA TIC DIAGRAM CONDENSER SUCTION ACCUMULA TOR COMPRESSOR EV APORA TOR PROCESS TUBE FIL TER DRYER 38945 031406[...]

  • Page 23

    23 38945 121906 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 /V IO 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 B[...]

  • Page 24

    24 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[...]