SERVICE (cont.)

BLK to Main

Harnesss

BLK from Main

Harness

P1219

FIG. 43 TANK HEATER SWITCH TERMINALS

TRANSFORMER - FMD-2 ONLY

J1

 

12

 

7

 

J1

 

J2

 

J4

 

J3

 

FIG. 44 TRANSFORMER

P1666

 

Location:

The transformer is located behind the lower front access cover, mounted on the right rear side of the component bracket.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Disconnect the four pin plug from the main har- ness from the four pin connector on the trans- former.

3Check the voltage across black wire pin 1 and the white wire pin 2 on the plug from the main harness. Connect the dispenser to power source. The indi- cation must be:

a.120 volts ac for two wire 120 volt models.

b.120 volts for three wire 120/208 volt models and three wire 120/240 volt models.

4. Disconnect the dispenser from the power source.

If voltage is present as described reconnect the plug and the connector and proceed to #5.

If voltage is not present as described, refer to the wiring 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 screws securing the com- ponent bracket to the dispenser housing base.

2.Pull component bracket out the front of the dis-

penser far enough so the transformer connector can be disconnected from the main wiring har- ness.

3Disconnect the transformer four pin connector from the four pin plug on the main wiring harness.

4.Remove the two #6-32 keps nuts securing the transformer to the rear of the component bracket.

5.Remove and discard the transformer.

6.Install new transformer on the rear of the compo- nent bracket and secure with two #6-32 keps nuts.

7.Connect the four pin connector on the transformer to four pin plug on the main wiring harness.

8.Place the component bracket into position and tighten the two #8-32 screws.

WHI/GRN - T7

 

 

WHI/BLK - T12

12

 

 

11

 

 

9

 

 

8

 

 

7

 

 

WHI - 120V T2, 240V T6

 

 

BLK - TI

 

FIG. 45 TRANSFORMER TERMINALS

P1703

 

39

29112 101598

 

 

Page 38 Page 40
Page 39
Image 39
Bunn FMD-1 FMD-2 service manual Transformer FMD-2 only, WHI/GRN T7 WHI/BLK T12
Page 38 Page 40

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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