Bunn CDBCP, S/N CDBC020213, CDBCFP service manual Tank Heater

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SERVICE (cont.)

TANK HEATER

P1855

FIG. 8 TANK HEATER

Location:

The tank heater is located inside the tank and secured to the tank bottom.

Test Procedures:

1.Disconnect the brewer from the power supply.

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

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

5.Check for continuity across the tank heater termi- nals.

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.

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.

11.Disconnect the two white wires from the tank warmer blanket.

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

13.Remove the four #8-32 nuts securing the tank to the mounting brackets and remove the tank as- sembly.

14.Remove the eight #8-32 nuts securing the tank lid to the tank.

15.Remove the two hex nuts securing the tank heater to the bottom of the tank. Remove tank heater with gaskets and discard.

16.Install new tank heater with gaskets to the bottom of the tank and secure with two hex nuts.

17.Install tank assembly onto mounting brackets and secure in place with four #8-32 nuts.

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Contents DIS Vers ION Contents BUNN-O-MATIC Commercial Product WarrantyIntroduction User Notices Electrical Requirements Plumbing RequirementsElectrical Hook-Up Temperature Indicators ON/OFF SwitchBrew Switch Ready IndicatorCoffee Brewing Initial SET-UPCleaning POUR-OVER FeatureSetting Brew Temperature CDBC, Single CD Adjustments & Optional SettingsWater Sensing Threshold Adjustment Procedure Adjustments & Optional SettingsPulse Brew Setup Procedure Cdbc & Single CD Before troubleshooting this brewer, check for the following TroubleshootingTroubleshooting Refill Circuit Problem Probable CauseRemedy Fill or refill does not shut OFF ON/OFF Switch on Troubleshooting Refill CircuitWater does not heat to proper temperature Heating Circuit ProblemTroubleshooting Heating Circuit Problem Probable CauseProbe, tank or tank heater Lime build up Spitting or excessive steaming Temperature Probe ContControl Board Water supplyBrew cycle will not start Display flashing Brewing Circuit Problem Probable CauseBrewing Circuit Problem Probable Cause RemedyWeak beverage Sprayhead Water temperatureDripping from spray head Lime build up RequiredTroubleshooting Brewing Circuit Cause Things to Check DiagnosticsService Component AccessContents Service Disconnect the 11-pin connector from the control panelControl Board Switch Panel Switch PanelDispense Valve Dispense ValveLimit Thermostat Limit ThermostatTank Heater Tank HeaterTank Heater Wiring Service Tank HeaterCheck for continuity across the refill valve coil terminals Refill ValveLocation Warmer Elements120V AC 2 Wire 120/208V AC 3 Wire 120/240V AC 3 Wire Schematic Wiring Diagram Cdbc 15, 20Schematic Wiring Diagram CDBCP/CDBCPF 15, 20 120/208V AC 3 Wire 120/240V AC 3 Wire 120V AC 2 Wire200V AC Wire Single Phase100V AC

CDBCP, CDBCFP, CDBCF, S/N CDBC020213 specifications

The Bunn CDBCFP, S/N CDBC020213, is part of the CDB family of coffee brewers, specifically designed to offer exceptional flavor and brewing efficiency for commercial settings. This advanced machine is a significant upgrade from traditional brewing systems, focusing on precision, consistency, and ease of use.

One of the main features of the Bunn CDBCFP is its digital control system, which allows operators to easily customize brew recipes and temperatures. This feature not only enhances the flavor profile of the brewed coffee but also ensures that each cup meets customer expectations. The machine is equipped with a patented infusion technology that allows for full saturation of coffee grounds, maximizing extraction and delivering a robust flavor.

The Bunn CDBCFP also boasts a large capacity, making it ideal for high-demand environments like cafes, restaurants, and offices. The unit can brew up to 3.8 gallons of coffee per hour, ensuring a steady supply even during peak times. The design includes a dual-funnel brewing system, which helps to distribute water evenly over the coffee grounds, resulting in a more consistent extraction.

In terms of its construction, the CDBCFP features a durable stainless-steel body that withstands the rigors of commercial use. This not only ensures longevity but also makes it easy to clean and maintain. The brewer is designed with a sleek aesthetic, fitting effortlessly into any modern kitchen or service area.

Another notable characteristic is the machine's energy efficiency. The Bunn CDBCFP is designed to operate with low energy consumption, helping businesses to reduce their overall operational costs. Additionally, the brewer's quick recovery time means that it can be ready to brew within minutes, further enhancing its efficiency.

The Bunn CDBCFP, S/N CDBC020213, is also compatible with a variety of coffee types, allowing businesses to diversify their offerings. Whether it’s gourmet blends, single-origin coffees, or sustainability-focused products, the CDBCFP can handle them all with ease.

In summary, the Bunn CDBCFP stands out in the commercial coffee brewing landscape due to its digital controls, large brewing capacity, durable construction, energy efficiency, and versatility. For establishments looking to deliver high-quality coffee with reliability, this brewer is a top choice.
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