Instruction/ maintenance manual of the product jdf-2 Bunn
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JDF-2 S/N JDF0005473 & UP 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 parts catalog, please visit the Bunn-O-Matic website, at www .
2 38310 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 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 CHARGE T ype R134A, Amount 9 oz (255 gm) Design Pressures: High 255 psi (15.
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 polyethylene, before the dispenser will facilitate movement to clean the countertop. It can be purchased direct from BUNN-O-MA TIC (part number 34325.10_ _ [see Illustrated Parts Catalog for complete part number .]) BUNN-O-MA TIC does not recommend the use of saddle valves to install the dispenser .
6 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 .
7 OPERA TING CONTROLS FIG 3 Refrigeration Switch FIG 4 Sanitize Switch P2657 P2261 38310 062205 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 the condenser fan motor .
8 OPERA TING CONTROLS (cont.) FIG 5 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. Hidden Switch These switches are used to access, change and exit the dispenser program mode.
9 DISPENSER USE Press and Hold Models (Refer to Fig 5) 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. Portion Control Models (Refer to Fig 6) 1.
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.
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.
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) 38310 012207 NOTE: High volume applications may require tubing changes every 6 months.
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.
14 ADJUSTMENT & OPTIONAL SETTINGS (cont) 7. Repeat steps 3 through 6 as necessary until the correct water flow rate is achieved. 8. Repeat steps 3 through 7 for the remaining dispense positions. 9. Exit the “Pump Speed Programming” mode by simultaneously pressing both “Hidden Switches”.
15 ADJUSTMENT & OPTIONAL SETTINGS (cont) Pump Speed Programming 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.
16 ADJUSTMENT & OPTIONAL SETTINGS (cont) Dispenser Lockout Dispense and Rinse functions of the dispenser can be electronically locked-out to prevent unauthorized use of the dispenser , while keeping the refrigeration system running. 1. Enter the “Pump Speed Programming” mode by simultaneously pressing both “Hidden Switches”.
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 factor y with a password of “0” (no password.
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.
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 .
20 38310 010406 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 (Concentrat.
21 38310 010406 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.
22 38310 010406 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: Aleays check power with coil attached.
23 38310 010406 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.
24 38310 010406 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.
25 38310 010406 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.
26 38310 010406 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.
27 38310 010406 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.
28 COOLANT SCHEMA TIC DIAGRAM CONDENSER SUCTION ACCUMULA TO R COMPRESSOR EV APORA TO R PROCESS TUBE FIL TER DRYER 38310 010406.
29 SCHEMA TIC WIRING DIAGRAM 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 LAMP ASSY . GRN GRN GRN BLU BRN/BLK RED/BLK RED/BLK GRY WHI BLK LIMIT THERMOS TAT K2 K2 COMP .
30 38310 010406 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 #2 DISPENSE RED/BLK WHI/ORN SOL #1 DISPENSE #2 RINSE & DISPENSE LIMI.
31 38310 010406 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 .
32 38310 012207 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 LAMP ASSY . GRN GRN GRN 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 BLK RED/BLK RED/BLK GRY WH IW HI RECIR.
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However, one of the most important roles played by the user manual is to help in solving problems with Bunn jdf-2. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bunn jdf-2 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
