Instruction/ maintenance manual of the product JDF-4S Bunn
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JDF-2S JDF-4S Silver Series® INST ALLA TION & OPERA TING GUIDE 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 en.
2 44744 051910 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 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. 27442.7000 00986.7000 33461.0001 JDF-2S W ARNING F AILURE TO COMPL Y RISKS EQUIPMENT DAMAGE, FIRE OR SHOCK HAZARD.
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 sour ce must be capable of producing a minimum flow rate of 3 fluid ounces (88.7 milliliters) per second.
5 2. On Portion Control models, connect membrane switches to Door Circuit Board. 4. Secure the door cover using 5 screws provided. 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 .
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 .
7 FIG 5 Initial Fill Connection - JDF-2S P3582 7. T urn ON the refrigeration switch near the main control board. 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.
8 PRIMING 1. Open the dispenser door 2. Load concentrate per instructions in section titled Loading . 3. Close the dispenser door . 4. Place a large container under the appropriate dispense nozzle. Press and hold the “Product Dispense Switch” Fig 5, until concentrate dispenses from the dispense nozzle.
9 FIG 11 Product Dispense Switches - JDF-2S Product Dispense Switch (Membrane Switch Machines) A. Product Dispense Switch Momentarily pressing and releasing one of the switches will initiate a timed dispense. Each station has three different timed dispenses which are preset at the factor y .
10 OPERA TING CONTROLS (Continued) Portion Control Option (Mechanical Switch Machines) 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.
11 P3585 FIG 15 T emperature LEDs JDF-2S (Early Models) FIG 16 T emperature LEDs JDF-4S P3845 OPERA TING CONTROLS (Continued) FIG 15A T emperature LEDs JDF-2S (Late Models) Procedure to return all dispense heads back to Push and Hold mode (Mechanical Switch Machines): 1.
12 CLEANING & PREVENTIVE MAINTENANCE Daily: Rinse Procedure T ools required: 32 oz. (946 ml) minimum empty container 1. Open dispenser door . Lift up on product containers and remove them from the machine. 2. Close the door , place an empty container under the dispensing nozzle.
13 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 .
14 FIG 17 Adjusting Water Flow Using 1/4" allen wrench Mix Ratio Adjust water flow rate to: Product Brix % (water + concentrate) 2+1 *3.75 fl. oz (111 ml) Prune Juice 16.0% per 3-second test Other * Orange Juice 11.8% 4+1 Pineapple Juice 12.8% Cranberry Fruit Cocktail 14.
15 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 Program switch in the ON position. 3. Place a measuring container under the dispense nozzle, press and release the DISPENSE button 6 times.
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 .
17 Circuit Board LED Indicators - JDF-2S (Early Models) 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.
18 FIG 19 JDF-4S FUNCTION LIST (Continued) 3 1 2 4 5 P3845 Circuit Board LED Indicators - JDF-4S and Late Model JDF-2S 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.
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.
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.
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.
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 counterclockwise rotation of pump rollers.
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.
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.
25 COOLANT SCHEMA TIC DIAGRAM CONDENSER SUCTION ACCUMULA TOR COMPRESSOR EV APORA TOR PROCESS TUBE FIL TER DRYER 44744 032811.
26 J6-1 J11-1 J11-5 J6-1 J6-5 J6-3 J5-1 J5-4 J2-1 J2-6 GRN WHI/ORN LEFT DISPENSE RIGHT DISPENSE LEFT DISPENSE RIGHT DISPENSE YEL YEL WH I/ VI O RECIR. PUMP BRN WHI BLK J1-1 J1-5 WHI J3-1 J3-2 WHI/BLK .
27 J6-1 J6-3 J5-1 J5-4 J2-1 J2-6 GRN WHI/ORN STA TION 1 DISPENSE STA TION 2 DISPENSE STA TION 1 DISPENSE STA TION 2 DISPENSE YEL YEL WH I/ VI O RECIR. PUMP BRN WHI BLK J1-1 J1-5 WHI J3-1 J3-2 WHI/BLK .
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.
An important point after buying a device Bunn JDF-4S (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bunn JDF-4S yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bunn JDF-4S - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bunn JDF-4S you will learn all the available features of the product, as well as information on its operation. The information that you get Bunn JDF-4S will certainly help you make a decision on the purchase.
If you already are a holder of Bunn JDF-4S, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bunn JDF-4S.
However, one of the most important roles played by the user manual is to help in solving problems with Bunn JDF-4S. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bunn JDF-4S along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
