SERVICE (cont.)

DISPENSE VALVE

6. Connect the voltmeter lead ends to the dispense valve coil terminals. Connect the brewer to the power source. Brewer temperature lockout must be disabled. Place "ON/OFF" Switch in the "ON" position. Press and release the brew switch. The indication must be 120 volts ac.

7. Disconnect the brewer from the power source.

If voltage is present as described, but no coil action is observed, nor "clicking" heard, dispense valve is de- fective. Replace valve and test again to verify repair. If voltage is not present as described, refer to Wiring Diagrams and check the brewer wiring harness. Also check the control board for proper operation. See Pages 22 and 23.

 

P1852

Removal and Replacement:

 

 

 

FIG. 4 DISPENSE VALVE

1.

Disconnect wires from the dispense valve.

 

 

2.

Drain enough water from the tank so the dispense

Location:

 

valve is above the water level.

 

The dispense valve is located inside the top cover

3.

Remove water lines from the dispense valve.

behind the front end cap.

4.

Remove the two #8-32 nuts securing the dispense

 

 

 

valve to the sprayhead panel.

Test Procedures:

5.

Install a new dispense valve using the two #8-32

1. Disconnect the brewer from the power source.

 

nuts.

2. Check the water level in the tank to confirm that it

6.

Reconnect water lines to the dispense valve and

 

is within 1/2" from the top of the tank.

 

secure in place with clamps.

3. Connect the brewer to the power source. If the

7.

Refer to FIG. 5 when reconnecting wires.

 

brewer has been set for brewer temperature lock-

 

 

 

out, this feature must be disabled. See Page 9 for

 

 

 

procedure.

 

WHI/GRN from

4.

Check the dispense valve for coil action. Place the

 

 

Control Board

 

ON/OFF switch in the "ON" position, press and

 

 

 

 

 

release the BREW switch. Listen carefully in the

 

WHI from Terminal

 

vicinity of the dispense valve for a "clicking" sound

 

Block

 

as the coil magnet attracts and repels the plunger.

 

 

5. Disconnect the brewer from the power source.

 

 

If the sound is heard as described, there may be a

 

 

blockage in the dispense valve or the water line to the

 

 

sprayhead. Remove the dispense valve and inspect for

 

P1853

wear, and remove waterborne particles.

 

 

FIG. 5 DISPENSE VALVE WIRING

If the sound is not heard as described, proceed to #6.

 

 

 

 

Page 25

29707 112801

 

 

Page 24 Page 26
Page 25
Image 25
Bunn CDBCF APS-MV, CDBCF-DV, CDBC APS-DV, CDBC-MV, CDBC-DV, CDBCF APS-DV, CDBCF-MV service manual Dispense Valve
Page 24 Page 26

CDBCF-MV, CDBCF APS-DV, CDBCF APS-MV, CDBC-DV, CDBC-MV specifications

The Bunn CDBCF-DV is a distinguished coffee brewer designed for commercial use, ideal for establishments that demand high-quality coffee at a fast pace. This brewer is notable for its innovative design and advanced brewing technology, making it an essential asset for cafes, restaurants, and coffee shops.

One of the standout features of the Bunn CDBCF-DV is its dual-voltage capability. This versatility allows the brewer to operate efficiently on both 120V and 240V power sources, ensuring that it meets the needs of various establishments regardless of electrical setup. This adaptability makes it a favorite among coffee vendors looking to optimize performance without the inconvenience of electrical constraints.

The BDCBF-DV also boasts a large capacity, allowing it to brew up to 14 cups of coffee in a single cycle. This is facilitated by its large water tank and high brewing rate, which can produce coffee in just a matter of minutes. The ability to brew rapidly while maintaining quality is crucial in busy environments where time is of the essence.

Key to the Bunn CDBCF-DV's performance is its patented brewing system that utilizes a pre-infusion feature. This technology ensures that the coffee grounds are saturated before the brewing process begins, promoting optimal extraction of flavors and aromas. The result is a rich, well-balanced cup of coffee that delights patrons and encourages repeat business.

Another notable characteristic is the brewer's easy-to-use control interface. With simple dial settings, baristas can effortlessly adjust brew strength and temperature, ensuring consistency with every batch. The intuitive design minimizes training time for new staff and enhances overall workflow in commercial settings.

Durability and maintenance are critical in commercial coffee brewing equipment, and the Bunn CDBCF-DV excels in this area as well. Constructed with high-quality materials, it is built to withstand the rigors of daily use. Additionally, it features easily accessible parts for straightforward cleaning and servicing, reducing downtime and ensuring that the coffee remains fresh and delicious.

In summary, the Bunn CDBCF-DV is a versatile, efficient, and user-friendly coffee brewer loaded with innovative features aimed at delivering exceptional coffee quality. Its dual-voltage operation, large capacity, pre-infusion technology, and durable design make it an indispensable choice for businesses looking to enhance their coffee offerings and improve customer satisfaction. Whether you're a small cafe or a larger restaurant chain, the Bunn CDBCF-DV is engineered to meet your coffee brewing demands with excellence.
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