Bunn FMD-1 FMD-2 service manual WHI/RED to, RINSE/RUN Switch FMD-2

Page 33

SERVICE (cont.)

RINSE/RUN SWITCH - FMD-1 (CONT.)

2.Remove the facenut securing the run/rinse switch to the dispenser front panel.

3.Remove switch with wires attached from the back side of the front panel.

4.Disconnect the wires from the switch and dis- card the switch.

5.Refer to Fig. 31 when connecting wires to the new switch.

6.Install new switch with wires attached through the hole in the front panel and secure with facenut.

RED from Main

Wiring Harness

WHI/RED to

Main Harness

FIG. 31 RINSE/RUN SWITCH TERMINALS P1456

RINSE/RUN SWITCH - FMD-2

J1

 

1

 

J1

 

J2

 

J4

 

J3

 

FIG. 32 RINSE/RUN SWITCH

P1666

 

Location:

The rinse/run switch is located on the lower center of the whipper motor mounting panel.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Check for continuity between the center left ter- minal and left bottom terminal, also between the center right terminal and the right bottom termi- nal with the switch in the rinse position (upper). Check for continuity across the center left termi- nal 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 position.

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.Remove the facenut securing the run/rinse switch to the whipper motor mounting panel.

3.Remove switch with wires attached from the back side of the whipper motor mounting panel.

4.Disconnect the wires from the switch and dis- card the switch.

5.Refer to Fig. 33 when connecting the wires to the new switch.

6.Install new switch with wires attached through the hole in the whipper motor mounting panel and secure with facenut.

WHI/BRN to

GRY to Control

Main Harness

Board J2-2

 

GRN to Control

 

Board J2-9

BLK from

 

Main Harness

 

WHI/BRN to

 

Main Harness

YEL to Control

 

 

Board J2-3

P1644

FIG. 33 RINSE/RUN SWITCH TERMINALS

33

29112 101598

 

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Contents FMD-1 FMD-2 Introduction WarrantyUser Notices FMD-1 FMD-200656.0000 FMD-1 only28368.0001 Electrical Requirements Initial SET-UPElectrical HOOK-UP Plumbing RequirementsInitial Fill & Heat Rinse Timer FMD-2 onlyLiquid Level Control Running a Rinse SequenceAdjustments CleaningHopper Motor Speed Adjustment FMD-1 Cold Beverage SET-UP Optional FMD-2 onlyDraining the HOT Water Tank Hopper Motor Speed Programing FMD-2Problem TroubleshootingProduct will not dispense Probable CauseProbable Cause Remedy Problem Probable Cause Problem Probable Cause Remedy Dispenser is making unusual Refer to Service Lamp, see page 29 for lamp replacementComponent Access ServiceContents Auger Drive Components FMD-1Hopper Lid Retainer Clip Hopper AssemblySpacer Auger Motor Hopper Base Dust Seal Washer Retainer Clip Ing panelAuger Drive Components FMD-1 To the rear of the auger motor mounting panelAuger Drive Components FMD-2 Hopper Hopper Assy Auger Drive Components FMD-2 Bushing Panel Auger Drive ShaftHopper Dust Seal Disconnect the wires from the auger motor 16 to be removed Remove dust seal 17 from auger motorRemove auger motor and discard Location Ballast FMD-1 & FMD-2Thermostat Terminals Control Board FMD-2 onlyService Dispense Switch Dispense Switchs FMD-1 & FMD-2 FAN FMD-1 & FMD-2 Dispense Switch Terminals P1449FMD-2 Whipper Motor Terminals P1221 Frother and Whipper Motor FMD-1 shown & FMD-2Hopper Drive Board Hopper Drive Board FMD-1 onlyHopper Drive Board Terminals Hopper Drive Board FMD-1 onlyDoor Assy Upper Panel Lamp Holders Lower Panel Lamp Replacement Refer to FigAs assembly Lamp Replacement Refer toLamp Starter and Socket Refer to Location Level Control Board and Level Probe FMD-1 onlyLevel Control Board and Level Probe FMD-1 only Reconnect the violet wire to terminalLocation RINSE/RUN Switch FMD-1RINSE/RUN Switch FMD-2 WHI/RED toBLK from Main Harness WHI/BRN to YEL to Control Board J2-3 Cold Water Solenoid Valve Solenoid Valve Cold Water OPTIONALFMD-2 onlyFMD-1 Solenoid Valve Dispense FMD-1 & FMD-2 Tank Heater Solenoid Valve Inlet FMD-1 & FMD-2Tank Heater Switch FMD-1 shown & FMD-2 Tank Heater FMD-1 shown & FMD-2Main Harness Thermostat WHI/GRN T7 WHI/BLK T12 Transformer FMD-2 onlyBLU WHI Schematic Wiring Diagram FMD-1Schematic Wiring Diagram FMD-2

FMD-1 FMD-2 specifications

The Bunn FMD-1 and FMD-2 models represent a significant advancement in the realm of coffee brewing equipment, catering to the demands of both commercial establishments and serious coffee enthusiasts. These machines are designed to efficiently brew high-quality coffee while minimizing operational complexity.

The Bunn FMD-1 is a single brewer, while the FMD-2 features dual brewing capabilities. This distinction allows the FMD-2 to meet higher coffee volume demands, making it an ideal choice for bustling cafes or restaurants where efficiency is paramount. Both models are engineered with a robust stainless steel construction, ensuring durability and longevity in high-traffic environments.

One standout feature of both models is the infusion technology. This proprietary system enhances the extraction process, allowing for optimal flavor development. The machines utilize a programmable brewing timeline, which provides users with a high level of control over the brewing variables such as time and temperature. This leads to a customizable brewing experience tailored to specific coffee blends or personal taste preferences.

Additionally, these brewers are equipped with an integrated hot water faucet, offering convenience for making tea, hot chocolate, or even instant soup. This multifunctionality improves workflow in busy kitchens, as it eliminates the need for separate hot water dispensers.

The FMD series is also designed with user-friendly interfaces. The digital display provides clear, intuitive information about the brewing process, including brew progress and maintenance alerts. This makes it easy for operators to monitor and manage the machine, ensuring consistency and quality in every cup.

Moreover, both models are designed for quick and efficient cleaning. The removable brewing components facilitate maintenance, which is crucial in a commercial setting where hygiene and equipment uptime are critical.

In terms of capacity, the FMD-1 brews up to 3.8 gallons per hour, while the FMD-2 can produce an impressive 7.5 gallons per hour, demonstrating their suitability for high-volume service.

Overall, the Bunn FMD-1 and FMD-2 models embody the perfect blend of technology, efficiency, and user-centric design, making them a valuable addition to any coffee service operation. Their ability to deliver consistent, high-quality coffee with ease is sure to enhance the customer experience and streamline operations simultaneously.
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