Bunn FMD-4 - Manuals - manualsarea.com

Page 3 - USER NOTICES; Replace any unreadable or damaged labels.; CONTENTS; Preventive Maintenance; SITE PREPARATION; space so the dispenser can be moved for cleaning.; INTRODUCTION; Basic Maintenance

3 USER NOTICES All notices on this equipment are written for your protection. All notices are to be kept in good condition. Replace any unreadable or damaged labels. CONTENTS Warranty .......................................................................................................................

Page 4 - CLEANING; NOTICE

4 CLEANING The use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning all sur- faces on Bunn-O-Matic equipment. Do NOT clean this equipment with a water jet device. 1 x 24h 37254.0000A 07/04 © 2004 BUNN-O-MATIC CORPORATION NOTICE The cleaning instructions ...

Page 5 - REQUIRED REGULAR MAINTENANCE:

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: 32906.0000 Mixing Chamber Kit (Includes items indented below) 25732.0000 Ste...

Page 6 - TROUBLESHOOTING; PROBLEM

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 elect...

Page 11 - NOTES

Page 12 - SERVICE; Refer to the contents listing for component location.; INDEX

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 sho...

Page 13 - all screws and other attaching hardware for re-assembly.

13 SERVICE(CONT.) ACCESS PANELSLocation: All access panels are similar through the whole FMD family (FMD-5 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 ...

Page 15 - AUGER DRIVE COMPONENTS

15 SERVICE (CONT.) AUGER DRIVE COMPONENTS FIG. 3 AUGER DRIVE & HOPPER DISASSEMBLY 1. Hopper Lid 2. Hopper 3. Wiper Shaft 4. Wiper Blade 5. Wiper Drive Gear 6. Auger Drive Bracket 7. Spacer 8. Hopper Base 9. Washer 10. Retainer Clip 11. Hopper Support Plate 12. Auger Drive Shaft 13. Auger Wire 14...

Page 20 - NOTE: Verify the ground wire is connected to the board

20 SERVICE (cont.) CONTROL BOARD (FMD-2,-2FD,DBC-2FD,DBC-3) FIG. 10 CONTROL BOARD Location: The Control Board is located behind the lower front access cover mounted on the component bracket. Test Procedure: Power Supply: 1. Disconnect the dispenser from the power source. 2. With a voltmeter, back pr...

Page 25 - NOTE: J4 is not connected on Control Board #2 on

25 J4 J1 J2 J3 J4 J1 J2 J3 J4 J3 FIG. 13 CONTROL BOARD CONNECTORS P2637 J1 J2 J1 J2 J4 J3 CONTROL BOARD #1 CONTROL BOARD #2 SERVICE (cont.) CONTROL BOARD (CONT.)Removal and Replacement: 1. Disconnect the three plugs on the main wiring har- ness from the connectors on the control board. 2. Remove the...

Page 26 - NOTE - The capillary tube must be clear of any electrical

26 CONTROL THERMOSTAT (FMD-1,-2,-2FD,-3,-4,-5) SERVICE (cont.) FIG. 14 CONTROL THERMOSTAT Location: The control thermostat (mechanical or electronic) is located inside the dispenser on the upper left side of the housing. Test Procedure:Mechanical Thermostat: 1. Disconnect the dispenser from the powe...

Page 29 - Note: Pin 1 of the connector is identified by an arrow

29 SERVICE (cont.) If voltage is present as described, proceed to step 7. If voltage is not present as described, refer to the wiring diagram and check the dispenser wiring harness. 7. While pressing the appropriate switch, check for continuity across the following pins of the digital touch control ...

Page 31 - Across either pair

31 SERVICE (cont.) EMI FILTER (230 Volt FMD DBC-3) FIG. 20 EMI FILTER Location: The EMI Filter is located on the rear of the dispenser base on FMD DBC-3. Test Procedure: 1. Disconnect the dispenser from the power source. 2. Disconnect the two black wires and two white wires on the EMI Filter from th...

Page 32 - Diagrams and check the dispenser wiring harness.

32 VACUUM FAN (all Models) FIG. 22 FAN Location: The fan is located inside the dispenser housing on the right rear of the dispenser base plate. Test Procedures: 1. Disconnect the dispenser from the power source. 2. Disconnect the black and white wires from the fan terminals. 3. With a voltmeter, che...

Page 33 - Diagrams and check the dispenser wiring harness

33 P4102.40 SERVICE (cont.) FROTHER AND WHIPPER MOTOR (all Models except -2FD) FIG. 24 FROTHER AND WHIPPER MOTOR Location: The frothers are located behind the dispenser door, mounted on the whipper motor shaft inside the whipper chamber. The whipper motors are located on the back side of the whipper...

Page 34 - NOTE: To remove the recptacle only, rotate clockwise; BLK to Main Harness

34 SERVICE (cont.) FROTHER AND WHIPPER MOTOR (cont.) 6. Pull the frother (6) off the motor shaft. Notice the flat side on the shaft and the matching flat inside the frother. It is important that these two flats are lined up when reassembling. 7. Slip the o-ring (5) off the whipper chamber recep- tac...

Page 44 - NOTE - The magnets must be at the top of float and

44 SERVICE (cont.) OVERFLOW PROTECTION SWITCH (FMD-3,DBC-3-4,-5) FIG. 39 OVERFLOW PROTECTION SWITCH LEADS P1212 FIG. 38 OVERFLOW PROTECTION SWITCH Location: The overflow protection switch is located inside the copper overflow cup on the left side of the tank. Test Procedures: 1. Disconnect the dispe...

Page 46 - SOLENOID VALVE (COLD WATER - OPTIONAL for

46 FIG. 43 COLD WATER SOLENOID TERMINALS P1215 SOLENOID VALVE (COLD WATER - OPTIONAL for FMD-2,-3,-4,-5) FIG. 42 COLD WATER SOLENOID VALVE Location: The cold water solenoid valve is located on the left side of the dispenser base just behind the component bracket. Test Procedures: 1. Disconnect the d...

Page 47 - Diagrams and check dispenser wiring harness.

47 FIG. 45 DISPENSE SOLENOID VALVE TERMINALS P1645 SERVICE (cont.) SOLENOID VALVES (DISPENSE) (all Models) FIG. 44 DISPENSE SOLENOID VALVES P1637.40 Location: The dispense solenoids are located on the side of the tank. Test Procedures: 1. Disconnect the dispenser from the power source. 2. Disconnect...

Page 50 - NOTE - If the tank heater remains unable to heat, remove; FIG. 51 TANK HEATER TERMINALS; Resistance Values

50 SERVICE (cont.) TANK HEATER (all Models) FIG. 50 TANK HEATER P4102.40 Location:The tank heater is located inside the tank and secured to the tank lid. Test Procedure: 1. Disconnect the dispenser from the power source. 2. With a voltmeter check the voltage across the black and white wires 120 volt...

Page 54 - TRIAC MAPS for FMD

54 Q1 MOV1 MOV2 MOV4 MOV3 Q2 Q5 Q7 Q1 Q1 Bunn Part Number 28826.0006 Bunn Part Number 38739.0000 Bunn Part Number 38739.0001 MOV1 MOV1 TRIAC MAPS for FMD Q1 & MOV1 controls Refill Valve @ J4 Q1 & MOV1 controls Left Whipper Motor @ J2-6 Q2 & MOV3 controls Center Whipper Motor @ J2-3 Q5 &a...

Page 55 - SINGLE PHASE; SCHEMATIC WIRING DIAGRAM FMD-1

55 SOL DISPENSE M WHIPPER M HOPPER RUN/RINSE SWITCH WHI RED WHI RED RED RED RED RED BLK-16 120 VOLTS A C - 2 WIRE 120/208-240 VOLTS AC - 3WIRE SINGLE PHASE 29096.0000C 8/98 © 1998 BUNN-O-MATIC CORPORATION SCHEMATIC WIRING DIAGRAM FMD-1 GRN GRN GRN GRN L1 N L2 LIMIT THERMOSTAT BLK-16 TANK HEATER RED-...

Page 56 - SCHEMATIC WIRING DIAGRAM FMD-1A

56 SOL DISPENSE M WHIPPER M HOPPER RUN/RINSE SWITCH WHI RED WHI RED RED RED RED RED BLK-16 230 VOLTS AC CE 2 WIRE + GND SINGLE PHASE 50/60 HZ 29096.0006B 04/05 © 2005 BUNN-O-MATIC CORPORATION SCHEMATIC WIRING DIAGRAM FMD-1A GRN GRN GRN GRN L1 L2 LIMIT THERMOSTAT BLK-16 SOL TANK INLET BLK BLK BLK PRO...

Page 57 - SCHEMATIC WIRING DIAGRAM FMD-2

57 GRN GRN GRN WHI WHI WHI WHI WHI WHI SOL LEFT DISPENSE M LEFT WHIPPER M LEFT HOPPER M RIGHT HOPPER M RIGHT WHIPPER SOL RIGHT DISPENSE BLK BLK WHI WHI WHI WHI WHI WHI RED RED BLU BLU RED RED RED RED JUMPER PLUG MUST BE USED WHEN COLD DRINK FEATURE NOT INSTALLED RED SOL COLD DRINK OPTION (LEFT ONLY)...

Page 60 - SCHEMATIC WIRING DIAGRAM FMD-2FD

60 GRN GRN GRN WHI WHI WHI WHI SOL SOL LEFT DISPENSE HOT WATR M LEFT HOPPER M RIGHT HOPPER SOL RIGHT DISPENSE BLK BLK WHI WHI WHI WHI RED RED BLK-16 120 VOLTS AC - 2 WIRE 120/208-240 VOLTS AC - 3 WIRE SINGLE PHASE, 60 HZ 29096.0004A 01/03 © 2003 BUNN-O-MATIC CORPORATION SCHEMATIC WIRING DIAGRAM FMD-...

Page 65 - SCHEMATIC WIRING DIAGRAM FMD DBC-3

65 RED (3-WIRE MODELS) BLK (3-WIRE MODELS) BLK (2-WIRE MODELS) WHI (2-WIRE MODELS) GREEN L1 L2 BLK N MAIN ON/OFF SWITCH (Late 3-wire Models only) RED WHI SCHEMATIC WIRING DIAGRAM FMD DBC-3 (WITH HOT WATER DISPENSE) 120 VOLTS AC 2 WIRE + GND or 120/208-240 VOLTS AC - 3 WIRE + GND SINGLE PHASE, 60 Hz ...

Page 66 - SCHEMATIC WIRING DIAGRAM FMDA DBC-3

66 L2 L1 29218.0004A 09/01 © 2001 BUNN-O-MATIC CORPORATION 230 VOLTS AC - 2 WIRE SINGLE PHASE 50/60 HZ BLU/RED WHI/RED BLK/WHI ORN/BLK RED/BLK BLU/BLK BLU/WHI ORN WHI/BLK BLK RED RED/WHI GRN/BLK ORN RE D RU N RINS E GR Y WHI/BL U WHI/OR N WHI/RE D GRN WHI/BRN BRN/BL K RED/BL K WHI/VIO-22 WHI/VI O BL...