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This equipment must be installed to comply with the

Basic Plumbing Code of the Building Officials and

Code Administrators International, Inc. (BOCA) and

the Food Service Sanitation Manual of the Food and

Drug Administration (FDA). For models installed

outside the U.S.A., comply with the applicable

Plumbing /SanitationCode.

INTRODUCTION

This equipment dispenses hot beverages or soups on demand from powered product. It is for indoor use only

on a sturdy counter or shelf.

00656.0000

00831.0000

FMD-1 28328.0004

28368.0001

FMD-2 28328.0005

27096.0000 FMD-1 ONLY

28964.0000

28964.0001

29112 091307

USER NOTICES

Carefully read and follow all notices on the equipment and in this manual. They were written for your protection.

All notices are to be kept in good condition. Replace any unreadable or damaged labels.

37881.0000

Содержание FMD-1

Страница 1: ... 2 S N FMD0013000 UP 29112 0000D 09 07 1998 Bunn O Matic Corporation To obtain the Illustrated Parts Catalog visit the Bunn O Matic website at www bunn com This is absolutely FREE and the quickest way to obtain the catalog Contact Bunn O Matic Corporation at 1 800 286 6070 to obtain a paper copy of the required Illustrated Parts Catalog mailed via U S Postal Service ...

Страница 2: ... by such individuals whether oral or written do not constitute warranties and should not be relied upon If BUNN determines in its sole discretion that the equipment does not conform to the warranty BUNN at its exclusive option while the equipment is under warranty shall either 1 provide at no charge replacement parts and or labor during the applicable parts and labor warranty periods specified abo...

Страница 3: ...nitationCode INTRODUCTION This equipment dispenses hot beverages or soups on demand from powered product It is for indoor use only on a sturdy counter or shelf 00656 0000 00831 0000 FMD 1 28328 0004 28368 0001 FMD 2 28328 0005 27096 0000 FMD 1 ONLY 28964 0000 28964 0001 29112 091307 USER NOTICES Carefully read and follow all notices on the equipment and in this manual They were written for your pr...

Страница 4: ...N Improper electrical installation will damage electronic components 1 An electrician must provide electrical service as specified 2 Using a voltmeter check the voltage and color coding of each conductor at the electrical source 3 Open the front door of the dispenser and place the heater switch in the OFF upper position 4 Connect the dispenser to the power source 5 If plumbing is to be hooked up l...

Страница 5: ...erating and Service Manual and cured the system can be reset by disconnecting for at least 5 seconds and then recon necting the power to the machine PLUMBING HOOK UP 1 Securely attach the short piece of tubing on the water strainer assembly to the inlet fitting on the bottom of the dispenser 2 Flush the water line and securely attach it to the flare fitting on the water strainer assembly 3 Turn on...

Страница 6: ...cess panel and remove the jumper from J1 of the control board Replace the lower access panel and return power to the dispenser When enabled the rinse timer automatically keeps track of the time since the dispenser was last run through a rinse sequence If the dispenser detects that a rinse sequence has not been run for 8 hours the rinse L E D will flash continually If after an additional 4 hours 12...

Страница 7: ...replace the top cover assembly securing it with the two screws and return the tank heater switch to the on position HOPPER MOTOR SPEED PROGRAMING FMD 2 The hopper dispense rate is preset at the factory With 22 tooth gear and auger wire the preset dispense rate is approximately 3 to 5 grams per second With 32 tooth gear and auger wire the preset dispense rate is approxi mately 5 to 7 grams per seco...

Страница 8: ...p to avoid twists and kinks in the tubing Make certain that all plumbing connections are sealed and electrical connections tight and isolated This unit is heated at all times Keep away from combustibles WARNING Exercise extreme caution when servicing electrical equipment Unplug the dispenser when servicing except when electrical tests are specified Follow recommended service procedures Replace all...

Страница 9: ...rmostat 3 Tank Heater REMEDY Refer to Service Solenoid Valve Inlet for testing procedures See page 36 RefertoService LevelControlBoard and Probe for testing procedures See page 30 Refer to Service Control Board and Probe for testing procedures See page 20 Refer to Service Auger Drive See page 13 Refer to Service Auger Drive See Page 15 A Direction of flow arrow must be pointing towards dispenser B...

Страница 10: ...rrosive reactions resulting in seri ous leaks 2 Dispense Solenoid Valve 1 A Level Control Board and Probe FMD 1 B Control Board and Probe FMD 2 2 Solenoid Valve Inlet REMEDY Refer to Service Tank Heater Switch for testing procedures See page 38 Inspect the tank assembly for ex cessive lime deposits Delime as required Refer to Service Control Thermo stat for testing procedures See page 19 Inspect t...

Страница 11: ...ontainerbeneaththe dispense tip Initiate a dispense cycle and check the water temperature im mediatelybelowthedispensetipwith a thermometer Reading for mechanical thermostat modelsshouldbe180 Fto200 F see thermostattemperaturesettingsdecal in USER NOTICES on page 3 Refer to Service Whipper Motor for testing procedure See page 25 Refer to Service Frother Compo nents See page 25 Refer to Service Dis...

Страница 12: ...ceed 90 psi 620 kPa Install a regulator if necessary to lower the working pressure to ap proximately 50 psi 345 kPa Remove and clean lime off the tank heater See page 37 Refer to Service Fan for testing procedures See page 24 Refer to Service Hopper Drive Board for testing procedures See page 27 Refer to Service Control Board for testing procedures See page 20 Refer to Service Lamp see page 29 for...

Страница 13: ... Board and Level Probe FMD 1 30 Limit Thermostat 32 Rinse Run Switch FMD 1 32 Rinse Run Switch FMD 2 33 Solenoid Cold Water Optional FMD 2 Only 34 Solenoid Dispense 35 Solenoid Inlet 36 Tank Heater 37 Tank Heater Switch 38 Transformer FMD 2 39 Whipper Motor 26 Wiring Diagram 40 41 FIG 1 AUGER DRIVE COMPONENTS Location The auger components are located inside the bottom part of the hopper except for...

Страница 14: ... out the front of the hopper base 9 8 On Early models remove auger drive shaft 13 by removing the retaining clip 6 from auger drive shaft On Late models remove the auger drive bracket 7 by unscrewing left hand threads from the auger shaft 13 9 Slide spacer 8 and auger drive shaft bracket 7 off of the auger drive shaft 13 10 Remove auger drive shaft 13 from hopper base 9 11 Wash components in a mil...

Страница 15: ... cont Auger Drive Motor Refer to Fig 2 1 Remove hopper assy 17 and set aside for reas sembly 2 Removethefour 8 32screwssecuringthehopper support plate 12 remove plate and set aside for reassembly 3 Remove the four 8 32 screws located inside the dispenser housing on the lower right front of the auger motor mounting panel 21 securing auger motor mounting bracket 18 and auger motor 19 to the rear of ...

Страница 16: ...r 8 and auger drive shaft bracket 7 off of the auger drive shaft 5 9 Slide auger drive shaft 5 from auger drive shaft bushing 3 and remove from hopper 10 10 Remove locknut 9 from auger drive shaft bush ing 3 and remove auger drive shaft bushing from hopper 10 11 Wash components in a mild solution of dish detergent using a bristle brush when needed 12 Rinse and dry each item thoroughly 13 Check for...

Страница 17: ...haft 5 from auger drive shaft bushing 3 and remove from hopper 10 10 Remove locknut 9 from auger drive shaft bush ing 3 and remove auger drive shaft bushing from hopper 10 11 Wash components in a mild solution of dish detergent using a bristle brush when needed 12 Rinse and dry each item thoroughly 13 Check for damaged or broken components replace any if necessary and reassemble hopper assy 14 Ins...

Страница 18: ...nd dust seal 17 as an assembly 6 Remove dust seal 17 from auger motor 16 7 Remove the four 8 32 screws securing the auger motor to the auger motor mounting bracket 8 Remove auger motor and discard 9 Using four 8 32 screws install new auger motor 16 on mounting bracket 15 10 Install dust seal 17 on auger motor shaft 11 Using four 8 32 locking screws install auger mo tor dust seal and mounting brack...

Страница 19: ... ballast can bedisconnectedfromthemainwiringharnessand the door interconnect harness 3 Removethetwo 8 32screwssecuringtheballast the rear of the component bracket 4 Remove and discard ballast 5 Install new ballast on the rear of the component bracket and secure with two 8 32 screws 6 Refer to Fig 9 and reconnect the wires BLK to BLK from Main Wiring Harness BLK to BLU from Main Harness P1447 FIG 9...

Страница 20: ...ommet firmly and evenly so that the groove in the grommet fits into the tank lid 10 Carefully bend the capillary tube so that the tube and bulb inside the tank are in the vertical position and away from any electrical connections 11 Refer to Fig 11 and reconnect the wires NOTE The capillary tube must be clear of any electrical termination and not kinked CONTROL THERMOSTAT FMD 1 FMD 2 cont FIG 11 T...

Страница 21: ...s not present as described replace the control circuit board 16 Reconnect the ten pin connector of the wiring harness to J2 of the control board 17 Gently pull the liquid level probe out of the tank lid and inspect for corrosion Replace it if necessary 18 Place the probe so that neither end is in contact with any metal surface of the dispenser 19 Checkthevoltageacrosstheterminalsoftheinletso lenoi...

Страница 22: ...s dc Ifthevoltageispresentasdescribed thehoppermotor control circuitry is operating properly If the voltage is not present as described replace the control circuit board Removal and Replacement 1 Disconnectthethreeplugsonthemainwiringhar ness from the connectors on the control board 2 Remove the four 6 32 keps nuts securing the control board to the component bracket 3 Remove control board and disc...

Страница 23: ...20 volts ac for two wire 120 volt models b 120 volts ac for three wire 120 208 volt or 120 240 volt models c 230 volts ac for two wire 230 volt models 5 Disconnect the dispenser from the power source If voltage is present as described proceed to 6 If voltage is not present as described refer to the wiring diagram and check the dispenser wiring harness 6 Withavoltmeter checkthevoltageacrosstheblack...

Страница 24: ...volt models b 120 volts ac for three wire 120 208 volt or 120 240 volt models c 230 volts ac for two wire 230 volt models If voltage is present as described replace the fan If voltage is not present as described refer to wiring diagram and check the dispenser wiring harness Removal and Replacement 1 Disconnect the vacuum hose from the fan 2 Remove the two 8 32 locking screws securing the fan to th...

Страница 25: ... 230 volts ac for two wire 230 volt models 4 Disconnect the dispenser from the power source If voltage is present as described replace the motor If voltage is not present as described refer to the wiring diagrams and check the dispenser wiring harness FIG 19 MIXING WHIPPER CHAMBER COMPONENTS 1 Steam Collector 2 Mixing Chamber 3 Dispense Tip 4 Whipper Chamber 5 O Ring 6 Frother 7 Receptacle w Seal ...

Страница 26: ...ponentsinamildsolution of dish detergent using a bristle brush 19 Rinse thoroughly and allow to dry before reinstall ing in the dispenser 20 Slide whipper chamber receptacle w seal 7 and O ring 5 on to the motor shaft 21 Rotate the receptacle w seal 7 counterclockwise until it snaps into place on the motor mounting nuts 8 22 Pushfrother 6 ontothemotorshaft makingsure the flat in the frother 6 line...

Страница 27: ...perly If auger does not turn replace the auger motor If voltage is not present as described replace the hop per drive board Removal and Replacement Refer to Fig 2 1 Remove hopper assy 17 and set aside for reas sembly 2 Removethefour 8 32screwssecuringthehopper support plate 12 remove plate and set aside for reassembly 3 Remove the four 8 32 screws located inside the dispenerhousingonthelowerrightf...

Страница 28: ...ntinuity between the center terminal and the lower terminal with the switch in the increase position upper If continuity is present as described the switch is operating properly If continuity is not present as described replace the switch Removal and Replacement 1 Open the dispenser door 2 Removethefacenutsecuringtheincrease decrease switch to the whipper motor mounting panel 3 Remove switch with ...

Страница 29: ...laced from the door wiring harness 7 Rotatelamp 3 90 andremovefromlampholders 2 8 Removethe 6 32screwsecuringthelampholder 2 to be removed remove lamp holder 2 and discard 9 Install new lamp holder 2 and secure with a 6 32 screw 10 Connect the wires on the new lamp holder to the door wiring harness 11 Install lamp 3 into lamp holders 2 and turn 90 until the pins snap in place 12 Install upper door...

Страница 30: ... Remove starter 6 from starter socket 6 Check for continuity across the pins on the bottom of the starter 6 If continuity is present as described replace the starter If continuity is not present as described starter is operating properly Note If continuity tests are both as described and lamp does not light replace the starter Removal and Replacement Refer to Fig 25 1 Open dispenser door assy 1 2 ...

Страница 31: ...voltageispresentasdescribed thelevelcontrolboard is operating properly proceed to 11 If voltage is not present as described replace the level control board 11 Reconnect the pink wire to terminal 4 12 Gently pull the probe out of the tank lid and inspect for corrosion Replace it if necessary LEVEL CONTROL BOARD AND LEVEL PROBE FMD 1 ONLY cont 13 Place the probe so that neither end is in contact wit...

Страница 32: ...ERMOSTAT P1665 Location The limit thermostat is located in the center of the tank lid Test Procedures 1 Disconnect the dispenser from the power source 2 Disconnect both black wires from the limit ther mostat 3 Check for continuity across the limit thermostat terminals Ifcontinuityispresentasdescribed thelimitthermostat is operating properly If continuity is not present as described replace the lim...

Страница 33: ...tom terminal with the switch in the rinse position upper Check for continuity across the center left terminal and the top left terminal also between center right terminal and the top right terminal with the switch in the run position lower Continuity must not be present when the switch is in the center posi tion If continuity is present as described the switch is operating properly If continuity i...

Страница 34: ... solenoid valve on solenoid mounting bracket 8 Installthesolenoidvalveandbracketonthedispenser base and tighten the two 8 32 screws 9 Securely fasten the water lines to and from the solenoid valve 10 Refer to Fig 35 when reconnecting the wires SERVICE cont FIG 34 COLD WATER SOLENOID VALVE P1666 Location The cold water solenoid valve is located on the left side of the dispenser base just behind the...

Страница 35: ...ed refer to wiring diagram and check dispenser wiring harness 5 Check for continuity across the solenoid valve coil terminals If continuity is present as described reconnect the wires to the solenoid see Fig 37 proceed to 6 If continuity is not present as described replace the solenoid valve 6 Check the solenoid valve for coil action Connect the dispenser to the power source With RINSE RUN switchi...

Страница 36: ...edures 1 Disconnect the dispenser from the power source 2 Disconnect the white and violet wires from the so lenoid valve 3 Check the voltage across the white and violet wires with a voltmeter Connect the dispenser to the power source The indication must be a 120 volts ac for two wire 120 volt models b 120 volts ac for three wire 120 208 volt or 120 240 volt models c 230 volts ac for two wire 230 v...

Страница 37: ... heater is operating properly If continuity is not present as described replace the tank heater P1665 P1217 FIG 39 INLET SOLENOID VALVE TERMINALS SERVICE cont SOLENOID VALVE INLET FMD 1 FMD 2 cont WHI from Main Harness 7 Disconnect the dispenser from the power source If the sound is heard as described and water will not pass through the solenoid valve there may be a block age in the water line bef...

Страница 38: ...d level probe and the green wire to the tank Refer to the limit thermostat and the liquid level board and probe sections in this manual when reconnecting wires 14 Refer to Fig 41 when reconnecting the wires to the tank heater TANK HEATER FMD 1 shown FMD 2 cont SERVICE cont FIG 41 TANK HEATER TERMINALS P1218 WHI or RED to Main Harness BLK to Limit Thermostat J1 FIG 42 TANK HEATER SWITCH TANK HEATER...

Страница 39: ...ing diagrams and check the main wiring harness 5 Check the voltage between J1 1 and J1 2 on the eight pin connector at the control board Connect the dispenser to the power source The indication must be 24 volts ac If voltage is present as described the transformer is operating properly If voltage is not present as described replace the transformer Removal and Replacement 1 Loosen the two 8 32 scre...

Страница 40: ...MOSTAT BLK 16 TANK HEATER RED 16 3 WIRE MODELS WHI 16 2 WIRE MODELS BLK 16 SOL TANK INLET BLK BLK BLK PROBE 1 4 3 2 LIQUID LEVEL BOARD VIO WHI WHI WHI PNK FAN HEATER SWITCH CONTROL THERMOSTAT BLK 16 HOPPER DRIVE PCB WHI WHI BLK BLK WHI RED BLU STARTER BLK BLK BLU BLU BLU BLU BLU RED RED BLK BLK WHI WHI WHI WHI DISPENSE SWITCH 1 4 1 BLK J1 1 2 3 WHI RED FLUORESCENT LAMP BALLAST BLK BLK BLK BLK BLK ...

Страница 41: ...2 LIMIT THERMOSTAT BLK 16 SOL TANK INLET BLK BLK BLK PROBE 1 4 3 2 LIQUID LEVEL BOARD VIO WHI WHI WHI PNK FAN HEATER SWITCH CONTROL THERMOSTAT BLK 16 HOPPER DRIVE PCB WHI WHI BLK BLK WHI RED BLU STARTER BLK BLK BLU BLU BLU BLU BLU RED RED BLK BLK WHI WHI WHI WHI DISPENSE SWITCH 1 4 1 BLK J1 1 2 3 WHI RED FLUORESCENT LAMP BALLAST BLK BLK BLK BLK BLK BLK RED RED RED CHASSIS DOOR GRN HOPPER SPEED ADJ...

Страница 42: ...RED RED WHI 1 4 4 1 1 1 1 4 CONTROL THERMOSTAT WHI WHI J4 1 J2 10 J4 4 J3 1 J3 6 J2 1 J2 5 GRN PROBE PNK C O N T R O L P C B O A R D VIO VIO GRN GRN GRN GRN GRN GRN GRN GRN WHI ORN WHI ORN WHI RED WHI RED WHI BLK WHI GRN BRN BLK BRN BLK RED BLK RED BLK GRY YEL WHI YEL WHI RED WHI ORN ORN ORN ORN TAN TAN WHI FLUORESCENT LAMP BALLAST BLK BLK BLK BLU 1 GRN BLK WHI BLK GRY PNK RINSE L E D 4 1 120V 24V...

Страница 43: ...NTROL THERMOSTAT WHI WHI J4 1 J2 10 J4 4 J3 1 J3 6 J2 1 J2 5 GRN PROBE PNK C O N T R O L P C B O A R D VIO VIO GRN GRN GRN GRN GRN GRN GRN GRN WHI ORN WHI ORN WHI RED WHI RED WHI BLK WHI GRN BRN BLK BRN BLK RED BLK RED BLK GRY YEL WHI YEL WHI RED WHI ORN ORN ORN ORN TAN TAN WHI FLUORESCENT LAMP BALLAST BLK BLK BLK BLU 1 GRN BLK WHI BLK GRY PNK RINSE L E D 4 1 240V 24V AC TRANSFORMER WHI BLK WHI BL...

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