Bunn CDBCF-MV, CDBCF-DV, CDBC APS-DV, CDBC-MV, CDBC-DV, CDBCF APS-MV, CDBCF APS-DV Tank Heaters

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29707 012502

SERVICE (cont.)

TANK HEATERS

Location:

The tank heaters are located inside the tank and secured to the tank bottom.

DV models only Test Procedures :

1.Disconnect the brewer from the power source.

2.With a voltmeter, check voltage across the white wire from the terminal block and black wire from the control board. Connect brewer to the power source. The indication must be 120 volts ac.

3.Disconnect the brewer from the power source.

4.Check voltage across the red wire from the termi- nal block and black wire from the control board. Connect brewer to the power source. The indica- tion must be 240 volts ac.

5.Disconnect the brewer from the power source.

If voltage is present as described, proceed to #6

If voltage is not present as described, refer to the Wiring Diagrams and check wiring harness.

6.Disconnect the black and blue wires or the red and brown wires from the tank heater terminals.

7.Check for continuity across tank heater terminals.

If continuity is present as described, reconnect the wires, the tank heater is operating properly.

If continuity is not present as described, replace the tank heater.

NOTE- If the tank heater remains unable to heat, remove and inspect heater for cracks in the sheath.

MV models only Test Procedures:

1.Disconnect the brewer from the power source.

2.With a voltmeter, check voltage across the white or red wire from the terminal block and black wire from the control board. Connect brewer to the power source. The indication must be 120 volts ac for two wire 120 volt models or 208-240 volts ac for three wire 120/208-240 volt models.

3.Disconnect the brewer from the power source.

If voltage is present as described, proceed to #4

If voltage is not present as described, refer to the Wiring Diagrams and check wiring harness.

P1890

FIG. 8 TANK HEATERS

4.Disconnect the black wire and the white wire or red wire from the tank heater terminals.

5.Check for continuity across tank heater terminals.

If continuity is present as described, reconnect the wires, the tank heater is operating properly.

If continuity is not present as described, replace the tank heater.

NOTE- If the tank heater remains unable to heat, remove and inspect heater for cracks in the sheath.

All models Removal and Replacement:

1.Remove the top cover or top warmer housing and front access panel as previously described.

2.Disconnect the vent hose from the top of the tank by pulling the elbow fitting from the grommet in the top of the tank lid.

3.Drain water from the tank.

4.Disconnect the water supply tube to the dispense valve from the side of the tank.

5.Disconnect the water supply tube to the solenoid valve from the bottom of the tank.

6.On brewers with faucet, disconnect the outlet water line to the faucet from the side of the tank.

7.Disconnect the temperature probe from the top of the tank by pulling the probe from the grommet in the top of the tank lid.

8.Disconnect the pink wire from the level probe.

9.Disconnect the green wire from the top of the tank.

10.Disconnect the limit thermostat from the side of the tank.

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Contents DIS Version Introduction TWO Warmer Brewers Three Warmer BrewersAPS Brewers ONE Warmer Brewers CDBCF-DV BrewersCdbc LPTC-DV Brewers No Warmer BrewersElectrical Requirements 1425W VersionElectrical HOOK-UP Models CDBC-MV & CDBC-APS MV Coffee Brewing CleaningPlumbing Requirements Initial SET-UPReady Indicator ON/OFF SwitchBrew Switch Additional Warmer SwitchesSetting Brew Lockout Adjustments & Optional SettingsSetting Brew Temperature Displaying Brew TemperatureWater Sensing Threshold Adjustment Procedure Before troubleshooting this brewer, check for the following TroubleshootingTroubleshooting Refill Circuit Problem Probable CauseRemedy Troubleshooting Refill Circuit Water does not heat to proper tem- perature Heating Circuit ProblemIngs are taken Troubleshooting Heating CircuitProblem Probable Cause Tank HeaterProblem Probable Cause Remedy Brewing Circuit Problem Probable Cause Brew cycle will not start Control board or dispense valve Troubleshooting Brewing CircuitConsistently low beverage level Brew volume Dispenser Be made with sprayhead installedRequired Water temperatureSet-upinstructions Dripping from sprayhead Lime build upProblem Probable Cause Cause Things to Check DiagnosticsService When servicing, except when electrical tests are reComponent Access Service Disconnect the 11-pin connector from the control panelControl Board Switch Panel Dispense Valve Limit Thermostat Limit Thermostat WiringTank Heaters Tank Heater Terminal Block Wiring Diagram Voltage Selector Switch Terminals Refill Valve Warmer Elements Warmer ElementsFuse HOLDER/FUSE Assembly MV models only Thermal Fuses Service Thermal Fuses MV models onlySchematic Wiring Diagram Cdbc DV Schematic Wiring Diagram Cdbc APS-DV Cdbcf APS/TC/LPTC-DV Schematic Wiring Diagram Cdbc MV Schematic Wiring Diagram Cdbc APS MV
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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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