Instruction d'utilisation Bunn JDF-4S

Instruction d'utilisation pour le dispositif Bunn JDF-4S

Dispositif: Bunn JDF-4S
Catégorie: Machine à café
Fabricant: Bunn
Dimension: 8.11 MB
Date d'addition: 8/31/2013
Nombre des pages: 57
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Résumés

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Résumés du contenu
Résumé du contenu de la page N° 1

JDF-2S, JDF-4S
JDF-4D, JDF-4SB
SERVICE & REPAIR MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
To ensure you have the latest revision of the Operating Manual, or to view the Illustrated Parts
Catalog, Programming Manual, or Service Manual, please visit the Bunn-O-Matic website, at
www.bunn.com. This is absolutely FREE, and the quickest way to obtain the latest catalog and
manual updates. For Technical Servi

Résumé du contenu de la page N° 2

BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) Airpots, thermal carafes, decanters, GPR servers, iced tea/coffee dispensers, MCP/MCA pod brewers thermal servers and Thermofresh servers (mechanical and digital)- 1 year parts and 1 year labor. 2) All other equipment - 2 years parts and 1 year labor plus added warranties as specified below: a) Electronic circuit and/or control boards - parts and labor for 3 years. b) C

Résumé du contenu de la page N° 3

INTRODUCTION Safety first! To avoid electrical shock, unplug dispenser from power source before servicing inside. Basic Maintenance In order to maintain proper machine operation, a Preventative Maintenance schedule must be performed on a regular basis. The following procedures pretain to all versions in the JDF family of machines unless otherwise noted. CONTENTS Warranty .............................................................................................................................

Résumé du contenu de la page N° 4

Recommended Daily Cleaning Instructions The use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment. Do NOT clean this equipment with a water jet device. 1. Open dispenser door. Lift up on 2. Close door, place an empty con- 3. Dispense from each station un- product containers to discon- tainer under the dispense noz- til clear water flows from the nect them from the machine in- zles. dispense nozzle. let. 4. Open

Résumé du contenu de la page N° 5

REQUIRED REGULAR MAINTENANCE: When performing Daily-Weekly Cleaning procedures, inspect o-rings, seals, and bushings for signs of wear or damage and replace immediately. Check and/or replace every 6 months or as required: 39690.0000 Pump Tube Replacement Kit (Includes items indented below) 28755.1011 Tube, Norprene .25" ID x 17.0" lg 32732.0000 Clamp .39"/.48" 32656.0000 Fitting, Elbow .25" Barb x .38" Barb 21275.0003 Clamp .57"/.70" 34325.0032 Hose, Flex .38" ID x 5.25" lg 4917

Résumé du contenu de la page N° 6

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 per formed only by qualified ser vice person- nel. • All electronic components have high voltage ac and low voltage dc potential on their termin

Résumé du contenu de la page N° 7

TROUBLESHOOTING (Continued) PROBLEM PROBABLE CAUSE REMEDY Refrigeration 1. Compressor ON/OFF switch. Check for "ON" position or no continu- Dispense stations not working. ity - replace switch. Note: Cooling failure or excessive bath and cabinet temperatures for 2. Dirty condenser filter or fins. Clean filter and fins or replace con- more than 4 hours will result in dis- denser filter. (Filter not supplied on pense lockout or no dispense. some machines). 3. Condenser fan not running. A) Check f

Résumé du contenu de la page N° 8

TROUBLESHOOTING (Continued) PROBLEM PROBABLE CAUSE REMEDY Dispense station not working 1. Dispense Lockout switch set to Place switch in ON position. OFF position. 2. Dispense switch failed Check switch and harness for proper continuity. All stations dispense concentrate Main water supply Check for ON position. only Frozen bath A) Compressor relay/contacts short- ed - replace relay. B) Recirculating pump - replace or check for kinked flex line. Inlet water valve failed A) Check for 120V or 230

Résumé du contenu de la page N° 9

TROUBLESHOOTING (Continued) PROBLEM PROBABLE CAUSE REMEDY Dispense station Water solenoid Replace solenoid (24vdc) or check concentrate only wire connection between water valve and main control board. Dispense station Concentrate out Replace refill concentrate container water only or BIB Product pump not pumping Check for proper counterclockwise rotation of pump rollers. If coun- terclockwise, replace pump tubing. If clockwise, wire connection to pump is reversed. Switch wires on terminal

Résumé du contenu de la page N° 10

TROUBLESHOOTING (Continued) PROBLEM PROBABLE CAUSE REMEDY Water leak filling drip tray or around 1. Initial fill/setup Some expansion normal. May fill dispense deck area drip tray during initial ice block formation 2. Dispense deck Inspect or replace fittings clamps, o-rings, solenoids and quick discon- nect fittings. NOTE: Dispense deck area slopes to drain tube that leads to the drip tray. 3. Water pressure greater than Install water pressure regulator and 100psi reduce to 50 psi. Water

Résumé du contenu de la page N° 11

TROUBLESHOOTING (Continued) 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.. Difficulty brixing and/or weak bever- 1. Product viscosity or too cold. Thorough thaw of product before use age (35° - 40°) 2. Low water pressure. Maintain 20 psi or higher and a mini- mum flow rate of 1 fl oz/sec. 3. High wa

Résumé du contenu de la page N° 12

SERVICE This section provides procedures for testing and replacing various major components used in this dispenser should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem. WARNING - Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel. The dispenser should be disconnected from the power source when servicing, except when electrical tests are required and the test procedure spec

Résumé du contenu de la page N° 13

SERVICE(CONT.) ACCESS PANELS Location: All access panels are similar through the whole JDF family (JDF-4S shown). Before removing panels, make sure power is OFF to the machine and water is disconnected accept where indicated in testing procedures. Retain all screws and other attaching hardware for re-assembly. JDF-4S shown FIG. 1 ACCESS PANELS 49179 110613 13

Résumé du contenu de la page N° 14

SERVICE(CONT.) DISPENSE PLATFORM REMOVAL 1. Remove concentrate dispense tips by turning 1/4 turn to the left, then pull straight down. 2. Lift and remove product shelf to access dispense platform(s). 3. Remove front thumb screw holding dispense platform(s). 4. Disconnect 12 pin connector above dispense platform in rear. 5. Disconnect 3/8” water line at quick disconnect. 6. Remove dispense platform(s) by pulling forward. JDF-2S shown The JDF-4S uses 2 of the two head dispense platforms. FIG. 2 DI

Résumé du contenu de la page N° 15

SERVICE (CONT.) 5. Remove the wire to the ballast from the back of Ballast (JDF-2S,4S) each bracket. JDF-2S shown 6. To disengage the ballast wire from the bracket, push a 1/16” allen wrench (or equivalent tool) into the front hole that lines up with the wire in the back. Pull the wire out. 7. Repeat for each bracket. 8. White jumper must remain in place on the back of the light socket. 9. Remove screws from each ballast. Remove the green ground wire from the ballast bracket by removi

Résumé du contenu de la page N° 16

SERVICE (CONT.) Cabinet Fan (all Models) Removal and Replacement: JDF-2S shown 1. Disconnect the dispenser from the power source. 2. Remove the four screws attaching the fan and cover assembly. 3. Gently pull the cover forward and disconnect the 2-pin connector from the main wiring harness. 4. Remove the fan from the cover assembly and discard the old fan. 5. Install the new fan to the cover assembly using screws previously removed. 6. Reconnect the fan to the 2-pin connector on the main wi

Résumé du contenu de la page N° 17

SERVICE (CONT.) LG Compressor (JDF-2S,4S,4D) Test Procedures: JDF-4S shown Compressor Relay: Refer to FIG. 8 1. Disconnect the dispenser from the power source. 2. Remove compressor terminal cover retainer (1). 3. Connect a voltmeter across the white wire and the blue/black wire. Connect the dispenser to the power source. The indication must be: (a) 120 volts ac for two wire 120 volt models or (b) 230 volts ac for two wire 230 volt models. 5. Disconnect the dispenser from the power source. I

Résumé du contenu de la page N° 18

SERVICE (CONT.) Compressor (Cont.) Removal and Replacement: Compressor Relay: Refer to FIG. 8 1. Remove the terminal cover (1) 2. Disconnect the white wire from the compressor relay. 3. Pull relay (2) off of the compressor pins and discard. 4. Push new relay onto the compressor pins. 5. Refer to Fig. 9 and reconnect the wires. 6. Reinstall terminal cover (1). WHI Wire Compressor Thermal Overload Protector: Refer to FIG. 9 RELAY TERMINALS FIG. 8 1. Remove terminal cover (1). 2. Disconnect the BL

Résumé du contenu de la page N° 19

SERVICE (CONT.) GD Compressor (JDF-2S,4S,4D) Test Procedures: JDF-4S shown Compressor Start Relay: Refer to FIG. 12 WARNING: The compressor capacitor must be properly discharged before proceeding. This is most commonly done on low voltage capacitors by shorting across the terminals with a screwdriver. 1. Disconnect the dispenser from the power source. 2. Remove compressor terminal cover retainer (4). 3. Connect a voltmeter across the white wire and the blue/black wire. Connect the dispenser

Résumé du contenu de la page N° 20

SERVICE (CONT.) Compressor (Cont.) Removal and Replacement: BLU/BLK Compressor Start Relay: Refer to FIG. 12 GRN 1. Remove the terminal cover (4) 2. Disconnect the wires from the compressor start relay. WHI 3. Pull relay (1) off of the compressor pins and dis- card. 4. Push new relay onto the compressor pins. 5. Refer to Fig. 26 and reconnect the wires. 6. Reinstall terminal cover (4). FIG. 13 RELAY TERMINALS Compressor Thermal Overload Protector: Refer to FIG. 12 Plugs into Relay 1. Remove te


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