JDF-4 S/N 0005473 & UP d an or nly ss o r pre oto om M C n n Fa tio or era ns ig de efr n R Co !W AR DO ALWNO T OR AYS OV DO ADA ELEERL OA FOLNO PTO CTR D T ICA CIR KEELOWDEFR PLU CU P CO NATOR G.LLY IT. GR M MB ION PLU OU FA ND ILU UST AL G ANDOR DA RE TO IBLES LOCCO THE CH RE MAGE CO AW ALRD. ASS AD MP AY. ELE IS TH , FIR LY CTR 86.0 BE E E OR RIS ICA 002 FO EN E TIR L CO SH KS 5/98RE EQ NIN G 009 E OC US OP ©19 K HAUIP 94ING ER ME Bun TH ATI ZA NT NG n-O- IS RD Mat PR .
BUNN-O-MATIC 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) Compressors on refrigeration equipment: 5 years parts and 1 year labor.
CONTENTS Warranty......................................................................................................................... 2 Introduction.................................................................................................................... 3 User Notices................................................................................................................... 3 Initial Set-Up & Electrical Requirements.....................................................................
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 the dispenser on a sturdy counter or shelf able to support at least 230 lbs. (104.3 kg). The JDF-4 is designed for indoor use only. Set the dispenser on the counter where it will be used. The JDF-4 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.
PLUMBING REQUIREMENTS This dispenser must be connected to a COLD WATER 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 regulator in the line when pressure is greater than 100 psi (690 kPa) to reduce it to 50 psi (345 kPa).
OPERATING CONTROLS 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. P2262.60 FIG 2 Refrigeration Switch Sanitize Switch The sanitize switch is located behind the drip tray in the lower left corner of the chassis. The drip tray can be removed to provide easy access to the switch.
OPERATING CONTROLS (cont.) C C A B A A A FIG 4 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. Chilled Water Dispense Switch Pressing and holding switch will initiate chilled water flow from the nozzle; releasing the switch will stop the flow. C. Hidden Switch These switches are used to access, change and exit the dispenser program mode.
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. Set the drip tray back into place. 2. Ensure that the Main Water Valve (Early models) and the Water Bath Valve Fig 3, are turned off (handles positioned at 3 o’clock and 9 o’clock, respectively,) and that the Refrigeration Switch Fig 2, is in the OFF (rear) position. 3. Turn on the water supply.
INITIAL FILL (cont) Ambient Concentrates (Optional) 1. Install an Ambient Concentrate Conversion Kit (BUNN-O-MATIC part number 33699.0000) per the instructions provided in the kit. 2. Attach the concentrate product hose to the appropriate concentrate line located behind the dispenser’s splash panel. 3. Attach the other end of the product hose to the product container through an appropriate fitting. PRIMING 1. Open the dispenser door 2. Load concentrate per instructions in section titled Loading. 3.
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. Daily: Rinse Procedure Tools required: 32 oz. (946 ml) minimum empty container 1. Open the refrigerated compartment’s door to access the “DISPENSE/RINSE” Knobs Fig 6. 2.
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. 7. Once the dispense heads have been selected, press and hold the “Sanitize Switch” for 5 seconds again to initiate the automatic cycle.
CLEANING (cont) 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 Tubing 39689.0000 39687.0000 Tube Kit JDF-2S & JDF-4S Tube Assembly NOTE: High volume applications may require tubing changes every 6 months. 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 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. Enter program mode by simultaneously pressing both hidden switches. 3. Press and hold the dispense button, you will hear 5 beeps then two short beeps, continue holding until you hear three short beeps. At this time the dispenser will run product and water for 3 seconds. 4.
ADJUSTMENT & OPTIONAL SETTINGS (cont) Water Flow Testing and Adjustment 1. Enter the “Pump Speed Programming” mode by simultaneously pressing both “Hidden Switches” Fig 4 or Fig 5. Note that the beeper sounds twice and that the “PROGRAM” indicator begins flashing. 2. 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. 3.
ADJUSTMENT & OPTIONAL SETTINGS (cont) 3. To decrease the pump speed, press and hold the left-hand “Hidden Switch” (half-filled circle) and then momentarily press the “Product Dispense Switch (“+/STOP Switch” for portion control dispensers). Each time the “Product Dispense” (“+/STOP”) Switch is pressed, the motor speed is decreased by one step (5 RPM.) Note that each step is confirmed by a single flash of the appropriate “REFILL” indicator and a single tone from the beeper. 4.
ADJUSTMENT & OPTIONAL SETTINGS (cont) 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. 2. Enter a “Lockout” password as follows: a) Press and hold the left hand “Hidden Switch” (half filled circle) for mode #1, the right hand “Hidden Switch” (filled circle) for mode #2.
ADJUSTMENT & OPTIONAL SETTINGS (cont) Password Protection The programming modes and service lockout function may be password protected to prevent accidental or unauthorized access to these features. The dispenser is shipped from the factory with a password of “0” (no password.) 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. 2.
Dispense Fault List “REFILL” indicator 2 flashes 3 flashes 4 flashes 5 flashes All “REFILL” indicators flash 3 times Beeper 2 beeps 3 beeps 4 beeps 5 beeps 3 beeps Fault Dispense station locked out. DISPENSE/RINSE sensing fault. DISPENSE/RINSE knob mis-positioned. Pump motor stalled/speed sensor inoperative. Dispenser locked out. Cooling Fault List Fault Code “COOLING” DBC display Fault indicator (optional) 8 8 flashes every fault 8 Bath water level low.
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. 3 2 4 Rinse timer Off On 5 Audio feedback during dispenses. On Off 6 Future use. None None Note: When dip switch 2 is in the “on” position, the “REFILL” indicator is active, regardless of dip switch 1 position. 19 38218.
FUNCTION LIST 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 (Concentrate A) Set Pump 2 RPM (Concentrate A) Set Pump 3 RPM (Concentrate A) Set Pump 4 RPM (Concentrate A) Set Pump 1 RPM (Concentrate B) Set Pump 2 RPM (Concentrate B) Set Pump 3 RPM (Concentrate B) Set Pump 4 RPM (Concentrate B) Station 1 Large Cup Dispense Time (seconds) Station 1 Medium Cup Dispense Time (seconds) St
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 All dispense stations not working or all water & refill LED's flash and beep 3 times. Note: Cooling failure or excessive bath and cabinet temperatures for m ore than 4 hours will result in touchpad 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 or replace condenser filter. 3. Condenser fan not running.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Dispense station not working "refill" LED and beep code. 1. Bottle adapter switch membrane A) 3-Beep - Dispense/Rinse sensing fault. A) Dispense/Rinse switch membrane shorted out simultaneously. Check for moisture at 3-pin connector and clean. Apply electrical insulating compound or replace defective switch membrane. B) 4-Beep - Dispense/Rinse knob mis-positioned. B) Dispense/Rinse switch membrane open simultaneously.
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 In rinse position NOTE: Water will dispense for 4 seconds. Rotate knob to dispense position. Dispense starts then stops or "refill" flashes and beeps 5 times. Main control board Check for variable dc voltage when corresponding dispense switch is depressed.
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 and no beep/light fault codes 1. Step-down transformer. Check for 120/24 vac. If no 24vac reading, replace step-down transformer. 2. Main control board. If 24 vac present and no red LED, replace control board.. Hint: Red LED on main control board is powered from the step-down transformer 24 vac and rectified to 24 vdc by the rectifier. 1. Product viscosity or too cold. Thorough thaw of product before use (35° - 40°) 2.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Difficulty brixing and/or weak beverage 1. Pump tubing. Inspect, clean, or replace tubing and pump rotor/rollers for ease of rotation. 2. Bottle adapter assembly leaking NOTE: Leaking water into concentrate bottle during rinse of any station. Replace bottle adapter assembly. 3. Use of portable water pump. A) Follow plumbing requirements for pressure and flow rate. B) Source another portable pump or water supply that meets requirements.
CONDENSER FILTER DRYER SUCTION ACCUMULATOR COMPRESSOR PROCESS TUBE EVAPORATOR COOLANT SCHEMATIC DIAGRAM 28 38218.
SCHEMATIC WIRING DIAGRAM SCHEMATIC WIRING DIAGRAM FCD-4 & JDF-4 ONE CONFIGURATION MUST BE USED WHI 120V MODELS WHI/GRN K1 L1 N BLU/BLK BRN/BLK BLK WHI GRN BLK RED BLU BLU ICE BANK CONTROL ON/OFF BLU/BLK BRN/BLK WHI WHI BLK MOTOR LEFT LAMP ASSY. TRANSFORMER CONDENSOR FAN BLU/BLK WHI BLK BLU WHI WHI/BLU RIGHT LAMP ASSY. EMI FILTER GRY A B A B A B – COMPRESSOR ASSEMBLY RECT K2 1 LIMIT THERMOSTAT K2 COMP.
RED BLK GRN RED BLK GRN J5-19 J5-15 J5-10 J5-5 VIO WHI/VIO ORN WHI/ORN BLU WHI/BLU YEL WHI/YEL RED RED VIO ORN BLU YEL J9-6 J6-6 J8-1 C O N T R O L P C B O A R D GRY WHI/VIO J6-12 J3-1 J3-2 J1-1 24 VDC INPUT, 0/5 VDC SWITCHING OUTPUT WHI/YEL WHI/ORN J1-5 WHI/YEL WHI/ORN GRY RED J8-8 J7-1 J7-5 J1-10 J7-10 SCHEMATIC WIRING DIAGRAM JDF-4 DISPENSE DECK CIRCUIT J7-16 VIO ORN BLU YEL GRY WHI/VIO WHI/ORN WHI/BLU WHI/YEL YEL BLU ORN VIO J1-18 J4-5 WHI/BLU WHI/VIO J4-1 WHI/BLU WHT/VIO J
REFILL 1 REFILL 2 31 SWITCH UNIT ASSEMBLY (Push Button Control models) SWITCH UNIT ASSEMBLY (Portion Control Models) DISPENSE 4 RED/BLK BLU ORN/BLK WHI/BLK GRN ORN WHI RED GRN/BLK BLU/BLK BLK RED/WHI GRN/WHI BLU/WHI BLK/WHI SCHEMATIC WIRING DIAGRAM JDF-4 CONTROL PANEL CIRCUIT 4 STOP/+ J7-16 REFILL 4 J1-18 WATER 4 J7-10 4 LARGE J7-5 4 MEDIUM DISPENSE 3 J4-14 J7-1 4 SMALL WATER 3 REFILL 3 SANITIZE RINSE C O N T R O L P C B O A R D WATER 4 PROGRAM COOLING J6-6 REFILL 4 3 STOP/+ 3
L1 N GRN ELECTRONIC ICE BANK CONFIGURATION 50/60 VAC BLK WHI GRN BLK RED BLU BLU WHI GRN BLK RED 1 ELECTROMECHANICAL ICE BANK CONFIGURATION ICE BANK CONTROL FLUORESCENT LAMP BALLAST BLK WHI 4 BRN/BLK K1 ON/OFF BLU/BLK BRN/BLK WHI BLU/BLK LEFT LAMP RIGHT ASSY. LAMP ASSY.
