Bunn CDBC APS, CDBCF TC, CDBCF APS, CDBC TC manual Service, Control Board

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SERVICE (cont.)

CONTROL BOARD

P1846

FIG. 2 CONTROL BOARD

Location:

The Control Board is located inside the top cover behind the front end cap.

Test Procedures:

The test procedures for the control board will vary depending upon the problems experienced by the brewer. Refer to the Troubleshooting guide beginning on page 10. The troubleshooting guide is divided into three sections, Refill Circuit, Heating Circuit, and Brew- ing Circuit.

Removal and Replacement:

1.Disconnect the black wire and blue wire from the relay on the control board.

2.Disconnect the 10-pin connector and the 4-pin connector from the main wiring harness.

3.Disconnect the 11-pin connector from the control panel.

4.Remove the four #6 screws and four nylon wash- ers and the two #4-40 screws securing the control board to the end cap assembly.

5.Install a new control board and secure with the four #6 screws and nylon washers and the two #4- 40 screws to the end cap assembly.

NOTE: The four nylon washers must be installed under the heads of the four #6 screws to prevent a possible shorting of the control board circuits.

6.Connect the 11-pin connector from the control panel.

7.Connect the 10-pin connector and the 4-pin con- nector from the main wiring harness.

8.Connect the blue wire and black wire to the relay on the control board.

9.Refer to Adjustments and Optional Settings (See page 9) to program the new control board.

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29707.1 082803

 

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Contents Disco Ntinued V ERS ION Contents IntroductionCdbcf APS-DV Brewers User NoticesCDBCF-DV Brewers Cdbcf APS-DV & TC-DV Brewers#02765.0000 #12364.0000 #00656.0000 Models CDBC-DV, CDBC-APS DV & Cdbcf TC-DV Electrical RequirementsCoffee Brewing Plumbing RequirementsInitial SET-UP Faucet ModelsCleaning Operating ControlsAdjustments & Optional Settings Setting Brew TemperatureWater Sensing Threshold Adjustment Procedure Pulse Brew Setup ProceedureNow disabled Troubleshooting Before troubleshooting this brewer, check for the followingRefill Circuit Problem Probable Cause TroubleshootingRemedy Troubleshooting Refill Circuit Heating Circuit Problem Water does not heat to proper tem- peratureTank Heater Troubleshooting Heating CircuitProblem Probable Cause Ings are takenProblem Probable Cause Remedy Brewing Circuit Problem Probable Cause Dispenser Be made with sprayhead installed Troubleshooting Brewing CircuitConsistently low beverage level Brew volume Brew cycle will not start Control board or dispense valveDripping from sprayhead Lime build up Water temperatureSet-upinstructions RequiredProblem Probable Cause Diagnostics Cause Things to CheckWhen servicing, except when electrical tests are re Component AccessService Control BoardSwitch Panel Dispense Valve Limit Thermostat Wiring Limit ThermostatTank Heaters Valve from the bottom of the tank29707.1 Voltage Selector Switch Voltage Selector Switch TerminalsRefill Valve Warmer Elements Schematic Wiring Diagram Cdbc DV Schematic Wiring Diagram Cdbc APS-DV Cdbcf APS/TC/LPTC-DV

CDBC TC, CDBC APS, CDBCF TC, CDBCF APS specifications

The Bunn CDBCF series of coffee brewers is an essential tool for any coffee business, renowned for its reliability and efficiency. This series offers different models including the CDBCF APS (Automatic Pour-Over) and CDBCF TC (thermo carafe), among others. Each of these brewers is designed to produce exceptional quality coffee while ensuring ease of use.

One of the main features of the Bunn CDBCF APS is its automatic pour-over capability, which ensures that water is heated to the perfect brewing temperature and dispensed consistently. This model is equipped with a stainless steel water tank that maintains optimal water temperature, resulting in flavorful coffee extraction. Furthermore, the APS model allows for quick brewing cycles, producing up to 3.8 gallons of coffee per hour, making it ideal for high-demand environments.

The CDBCF TC model, on the other hand, utilizes a thermal carafe to keep coffee hot for extended periods without the need for a hot plate. This technology not only preserves the coffee’s flavors and aromas but also minimizes energy consumption. The thermal carafe can hold up to 1.9 liters of brewed coffee, making it efficient for serving in busy settings.

Both models in the CDBCF series come with a simple interface for straightforward programming and operation. Features such as the BrewLOGIC technology help regulate the brewing time and monitor water flow to ensure consistency. This is particularly beneficial in maintaining the quality of coffee across multiple brewing batches.

In terms of build quality, Bunn CDBCF brewers are constructed with durable materials designed to withstand the wear and tear of daily use in busy coffee shops. Their compact design requires minimal counter space while providing a high volume of output.

Overall, the Bunn CDBCF APS and TC models stand out for their advanced brewing technologies, versatility, and user-friendly design. They cater perfectly to coffee enthusiasts and business owners looking for reliable brewing solutions that deliver consistent quality and taste. With the Bunn CDBCF series, coffee brewing becomes not only an art but also an efficient and seamless process.
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