JDF-2S JDF-4S Silver Series INSTALLATION & OPERATING MANUAL BUNN-O-MATIC CORPORATION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 To 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 Corporation at 1-800-286-6070 to obtain a paper copy of the required Illustrated Parts Catalog mailed via U.S. Postal Service. 39992.
CONTENTS Introduction & Warranty................................................................................................. 2 User Notices................................................................................................................... 3 Initial Set-Up & Electrical Requirements......................................................................... 4 Plumbing Requirements.................................................................................................
USER NOTICES Carefully read and follow all notices on the equipment and in this manual. They were written for your protection. All notices are to be kept in good condition. Replace any unreadable or damaged labels. 00986.0002 27442.0000 This equipment must be installed to comply with the Basic Plumbing Code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Administration (FDA). For models installed outside the U.S.A.
INITIAL SET-UP CAUTION: The dispenser is very heavy! Use care when lifting or moving it. Use at least two people to lift or move the dispenser. Place dispenser on a sturdy counter or shelf able to support at least 150 lbs. (68 kg). This dispenser is designed for indoor use only. Set the dispenser on the counter where it will be used. This dispenser requires a minimum of 4 inches (102 mm) of air clearance at the rear and 8 inches (203 mm) of air clearance above the dispenser.
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. JDF-2S JDF-4S P3577 P3577 2. Install door cover. JDF-2S P3578 JDF-4S P3578 3. Secure the door cover using 5 screws provided.
PLUMBING HOOKUP The plumbing connection is located on the rear of the dispenser. A 3/8" (9.52 mm) male flare adapter fitting is supplied, installed on the rear of the dispenser. P3841 P3580-1 FIG 2 Plumbing Connections - JDF-4S FIG 1 Plumbing Connections - JDF-2S 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.
INITIAL FILL (Continued) 7. Turn ON the refrigeration switch at the back of the dispenser. This will start the water bath pump circulation. 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 plug in the end of the fill tube and store back into the dispenser. 10. Place the Dispense Lockout switch back to the ON position. 11. Replace the splash panel and drip tray. 12.
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 the o-ring on the container adapter is lubricated. This will ease removal of the container when it becomes necessary. 5.
OPERATING CONTROLS Refrigeration Switch The refrigeration switch is located on the rear of the dispenser near the center. This switch controls power to the water bath pump and relay contacts for the compressor and condenser fan motor. P3841 P3580-1 FIG 8 Refrigeration Switch - JDF-4S FIG 7 Refrigeration Switch - JDF-2S P3844 P3583 FIG 9 Product Dispense Switches - JDF-2S FIG 10 Product Dispense Switches - JDF-4S A.
OPERATING 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 position. 3. Remove drip tray and splash panel from the front of the machine then replace the drip tray. 4.
OPERATING CONTROLS (Continued) 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, 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.
CLEANING & PREVENTIVE MAINTENANCE Daily: Rinse Procedure Tools 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, place an empty container under the dispensing nozzle and press the dispense switch until clear water flows from the dispense nozzle. 4.
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 Tubing 39690.0000 39688.0000 Tube Kit JDF-2S & JDF-4S Tube Assembly 1. Open dispenser door. 2. Remove all product containers and place them in a refrigerated (35-40 degrees F [1.6-4.4 degrees C]) environment.
ADJUSTMENT & OPTIONAL SETTINGS Water Flow Testing and Adjustment 1. Place a graduated measuring cup or the large chamber of the empty brixing cup (BUNN-O-MATIC part number 33095.0000) under the appropriate dispense nozzle. Place the Dispense Lockout switch in the OFF position. 2. Press and release the desired “Product Dispense Switch” three times. 3. The selected position will dispense water (no concentrate) only for 3 seconds. 4. Measure the water dispensed. 5.
ADJUSTMENT & OPTIONAL SETTINGS (cont) 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. 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. 4. Record the total ounces dispensed. 5.
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 to prevent dispensing. 3. Place the switch in the ON position to allow dispensing.
FUNCTION LIST Circuit Board LED Indicators - JDF-2S LED # 1 2 Cabinet LED Color Illuminates: Green When the compressor should be ON. 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 condition.
FUNCTION LIST (Continued) Circuit Board LED Indicators - JDF-4S LED # LED Color 1 Bath Red Illuminates: Open bath thermistor circuit will flash #4 and #5 LED’s 1 time every 3 seconds. The compressor will not run under this condition. Shorted bath thermistor circuit will flash #4 and #5 LED’s 2 times every 3 seconds. The compressor will not run under this condition. When bath temperature is above 34 degrees F. Flashes slowly when compressor is in a 6 minute delay period.
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 personnel. All electronic components have 120-240 volt ac and low voltage dc potential on their terminals.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Refrigeration Dispense stations not working. Note: Cooling failure or excessive bath and cabinet temperatures for more than 4 hours will result in dispense lockout or no dispense. 1. Compressor ON/OFF switch. Check for "ON" position or no continuity - replace switch. 2. Dirty condenser filter or fins. Clean filter and fins or replace condenser filter. (Filter not supplied on some machines). 3. Condenser fan not running.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Dispense station not working 1. Dispense Lockout switch set to OFF position. Place switch in ON position. 2. Dispense switch failed Check switch and harness for proper continuity. Main water supply Check for ON position. Frozen bath A) Compressor relay/contacts shorted - replace relay. All stations dispense concentrate only B) Recirculating pump - replace or check for kinked flex line.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Dispense station concentrate only Water solenoid Replace solenoid (24vdc) or check wire connection between water valve and main control board. Dispense station water only Concentrate out Replace refill concentrate container or BIB Product pump not pumping Check for proper counterclockwise rotation of pump rollers. If counterclockwise, replace pump tubing. If clockwise, wire connection to pump is reversed. Switch wires on terminals.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Water leak filling drip tray or around dispense deck area 1. Initial fill/setup Some expansion normal. May fill drip tray during initial ice block formation 2. Dispense deck Inspect or replace fittings clamps, o-rings, solenoids and quick disconnect fittings. NOTE: Dispense deck area slopes to drain tube that leads to the drip tray. 3. Water pressure greater than 100psi Install water pressure regulator and reduce to 50 psi. 1.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Unit is not working 1. Step-down transformer. Check for 120/24 or 230/24 vac. If no 24vac reading, replace step-down transformer. 2. Main control board. If 24 vac present and no LED’s lit, replace control board.. 1. Product viscosity or too cold. Thorough thaw of product before use (35° - 40°) 2. Low water pressure. Maintain 20 psi or higher and a minimum flow rate of 3 fl oz/sec. 3. High water pressure.
CONDENSER FILTER DRYER SUCTION ACCUMULATOR COMPRESSOR PROCESS TUBE EVAPORATOR COOLANT SCHEMATIC DIAGRAM 25 39992 042007
120V MODELS 230V MODELS L1 N GRN/YEL GND L1 N BRN BLU SCHEMATIC WIRING DIAGRAM JDF-2S A B A B BLK WHI EMI FILTER A B A B BRN/WHI TRANSFORMER BLU WHI/BLU L O A D L I N E WHI/GRN GRN BLK WHI COMPRESSOR ASSEMBLY K2 BLU/BLK LIMIT THERMOSTAT WHI K2 COMP. K1 WHI/BLK GRN CONDENSOR FAN BLU/BLK MOTOR WHI REFRIGERATION SWITCH RED/BLK BLK WHI RECIR.
120V MODELS 230V MODELS L1 N GND L1 N GRN/YEL GRN BRN BLU SCHEMATIC WIRING DIAGRAM JDF-4S A B A B BLK WHI EMI FILTER TRANSFORMER L O A D L I N E A B A B WHI WHI WHI/BLU BLK BLK BLU TRANSFORMER BLU WHI/BLU L O A D L I N E BLK WHI COMPRESSOR ASSEMBLY K2 BLU/BLK LIMIT THERMOSTAT WHI K2 COMP.
QUICK SETUP GUIDE - JDF-2S and JDF-4S (JDF-2S shown) P3577 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. P3587-1 4. Place refrigeration switch in the OFF position. P3582 7. Install bath tank fill tube over a nozzle as shown.(See Initial Fill) P3578 P3580-1 5. Connect water supply to machine. (See Plumbing Requirements) 8. Place the Dispense in the OFF position.