Bunn FMD-1 FMD-2 service manual Schematic Wiring Diagram FMD-2

Page 41

SCHEMATIC WIRING DIAGRAM FMD-2

 

 

 

L1

 

 

 

 

 

 

 

 

GRN

 

 

 

L2

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TANK HEATER

 

CONTROL

 

 

 

LIMIT

 

 

 

 

 

 

 

 

 

SWITCH

 

THERMOSTAT

 

 

 

THERMOSTAT

TANK HEATER

RED-16 (3-WIRE MODELS)

 

 

 

 

BLK-16

BLK-16

 

BLK-16

 

BLK-16

 

BLK-16

 

 

 

 

 

 

 

WHI-16 (2-WIRE MODELS)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

BLK

FAN

WHI

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

WHI

 

J4-1

WHI

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

VIO

 

 

 

 

 

 

 

 

 

 

 

 

 

TANK INLET

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

 

 

VIO

 

WHI

 

J4-4

BLK

 

 

 

 

 

 

 

WHI/BLK

4

WHI/BLK

 

 

SOL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/GRN

 

WHI/GRN

 

120V : 24V AC

 

 

 

 

 

 

 

 

 

 

 

 

WHI

 

WHI

 

TRANSFORMER

 

 

C

 

 

 

 

 

 

 

 

 

BLK

 

BLK

WHI/BLK

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

1

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/GRN

 

 

 

T

J3-1

WHI/ORN

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

O

 

WHI/RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

L

 

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P.

 

WHI/GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J3-6

WHI/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J2-1

BRN/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

GRY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

 

 

 

 

 

 

 

 

WHI

O

 

YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

WHI/ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

J2-5

WHI/YEL

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

RED/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI/RED

 

 

 

 

 

 

 

 

 

 

RINSE/PROGRAM/

 

 

 

 

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

GRY

RUN SWITCH

 

 

 

 

 

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PNK

 

 

 

 

 

 

 

 

 

 

 

RUN

GRN

 

 

 

J2-10

 

 

FLUORESCENT

 

 

 

 

 

 

 

PGM

 

 

 

 

BLK

BLK

I

D

INCREASE/

 

 

 

 

 

 

 

 

 

 

YEL

 

 

 

 

 

 

LAMP

 

 

 

 

 

 

 

 

 

GRN

 

 

 

N

E

DECREASE

 

 

RINSE

 

 

 

 

 

 

 

BALLAST

 

C

C

 

WHI/BRN

 

 

 

 

 

 

 

 

 

SWITCH

 

RUN

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

BRN/BLK

 

 

 

 

WHI/BRN

PGM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLU

 

 

 

 

RINSE

 

 

 

 

 

PROBE

 

 

 

RED/BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RIGHT DISPENSE

RIGHT WHIPPER

 

RIGHT HOPPER

 

ORN

SOL

WHI

ORN

M

WHI

WHI/ORN

RED

M

BLK

GRN

 

 

 

 

 

 

 

 

LEFT DISPENSE

LEFT WHIPPER

 

LEFT HOPPER

 

 

TAN

SOL

WHI

RED

M

WHI

WHI/RED

RED

M

BLK

GRN

 

 

 

 

 

 

 

 

 

 

ORN

 

 

 

 

 

 

 

 

 

 

 

RED1

COLD DRINK OPTION (LEFT ONLY)

 

 

 

 

 

 

 

 

BLU

 

WHI

 

RED

 

 

 

 

RED

 

BLU

SOL

 

JUMPER PLUG MUST BE

 

 

 

 

 

 

 

 

 

TAN

 

 

 

 

 

RED

 

 

 

 

 

 

 

 

USED WHEN COLD

 

 

 

WHI

 

WHI

 

 

 

RED

DRINK FEATURE NOT

 

 

 

4

 

 

 

 

 

 

INSTALLED

 

 

 

 

 

 

 

 

 

 

 

GRN

WHI/YEL

1

WHI/ORN GRN WHI/RED

4

BLUWHI 1

ORN WHI/BRN RED

4

G

 

120/208-240 VOLTS AC - 3 WIRE

 

 

 

 

 

 

 

 

 

CHASSIS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120 VOLTS AC - 2 WIRE

GRY

1

 

 

 

 

1

 

 

R

 

 

SINGLE PHASE, 60 HZ

 

 

 

 

 

 

 

N

 

 

 

1

 

 

BLK/WHI ORN BLU/WHI

 

RED/WHI BLK RED

 

 

 

 

 

 

GRN/BLK

 

 

 

BLU WHI

 

DOOR

 

29096.0001C 10/98

© 1998 BUNN-O-MATIC CORPORATION

 

WHI/BLK

 

 

 

 

 

 

 

 

PNK

 

 

 

 

 

 

 

 

WHI

BLU

 

WHI

 

"RINSE" L.E.D.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLU

BLU

RED

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

STARTER

 

 

ORN

 

BLU/WHI

ORN

BLK/WHI

 

 

 

 

RED

BLK

 

 

BLK

 

RED

 

BLK

RED/WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI

 

 

LEFT DISPENSE SWITCH

RIGHT DISPENSE SWITCH

 

 

 

 

 

 

 

41

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Image 41
Contents FMD-1 FMD-2 Introduction WarrantyUser Notices FMD-1 FMD-228368.0001 00656.0000FMD-1 only 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-2 Auger Drive Components FMD-1To the rear of the auger motor mounting panel Hopper Hopper Assy Hopper Dust Seal Auger Drive Components FMD-2Bushing Panel Auger Drive Shaft Remove auger motor and discard Disconnect the wires from the auger motor 16 to be removedRemove dust seal 17 from auger motor 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-1BLK from Main Harness WHI/BRN to YEL to Control Board J2-3 RINSE/RUN Switch FMD-2WHI/RED to 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-2Main Harness Thermostat Tank Heater Switch FMD-1 shown & FMD-2Tank Heater FMD-1 shown & FMD-2 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.