Bunn CEZF, CDBC service manual ON/OFF Switch Wiring

Page 25

SERVICE (cont.)

ON/OFF SWITCH - Model CEZ-APS/TS/TSR

 

 

 

-

MODEL

 

A.C.

THE

VOLTS MOREOF

BE PENDING

 

PHASEOR

R ONE

 

MAY

UNDE

 

PATENTS

COVERED

 

 

OTHER

 

OR M

ORE

 

 

 

 

 

ONE

 

 

 

 

 

 

SOURCEOR

 

!

WARNING

 

 

POWERPANEL

 

 

 

 

 

 

ANY

 

 

FROMOF COMPONENT!

 

REMOVALOF ANY

DISCONNECT

 

BEFORE

 

 

 

REPLACEMENT

 

 

 

 

P1917

 

 

 

FIG. 5 ON/OFF SWITCH

6.Check for continuity across the center and lower terminal with the switch in the "ON" position. Continuity must not be present when the switch is in the "OFF" position.

If continuity is present as described, reconnect the black wire to the center terminal and the remaining wire to the lower terminal.

If continuity is not present as described, replace the switch.

Removal and Replacement:

1.Remove the wires from the switch terminals.

2.Remove the hose connected to the faucet. Remove the nut securing the faucet assembly to the brewer and remove the faucet.

3.Remove the four nuts securing the end cap to the brewer and remove the end cap.

4.Remove the switch and replace with new switch.

5.Install the front end cap and faucet assembly.

6.Refer to FIG. 6 when reconnecting the wires.

Location:

The ON/OFF switch is located on the front of the hood.

Test Procedure:

1.Disconnect the brewer from the power source.

2.Viewing the switch from the back remove the white wire from the upper terminal and the black wire from the center terminal.

3.With a voltmeter, check the voltage across the white wire and the black wire. Connect the brewer to the power source. The indication must be 120 volts ac for two wire 120 volt models and three wire 120/240 volt models.

4.Disconnect the brewer from the power source.

If voltage is present as described, reconnect the white wire and proceed to #5.

If voltage is not present as described, refer to the Wiring Diagrams and check the brewer wiring har- ness.

5.With the black wire removed, remove the wire from the lower terminal.

WHI to Terminal

Block (White Insert)

BLK to Terminal

Block (Black Insert)

WHI/RED to Control

Board (J1-8)

P1918

FIG. 6 ON/OFF SWITCH WIRING

Page 25

29253 091603

 

Page 24 Page 26
Image 25
Page 24 Page 26
Contents Phone 217 FAX 217 Post Office BOX SPRINGFIELD, IllinoisIntroduction ContentsUser Notices Plumbing Requirements Electrical RequirementsElectrical Hook-Up Brew Switch ON/OFF SwitchReady Indicator Operating ControlsInitial SET-UP CleaningCoffee Brewing Adjusting Brew Volumes CEZ-APS/TS/TSR Adjustments & Optional SettingsSetting Brew Temperature CDBC-APS/TC/TS/TSR Adjustments & Optional SettingsDisplaying Brew Temperature Setting Brew LockoutCDBC-APS/TC/TS/TSR Adjustments & Optional Settings Water Sensing Threshold Adjustment ProcedureBefore troubleshooting this brewer, check for the following TroubleshootingRefill Circuit Problem TroubleshootingProbable Cause Remedy2a. Water Level Probe Sensing System CDBC-APS/TS/TSR Troubleshooting Refill CircuitWater does not heat to proper temperature Heating Circuit Problem Probable Cause RemedyWater not touching temperature probe Problem Probable Cause Remedy Troubleshooting Heating CircuitControl Board Cdbc & CEZ ContReplace the control board.See Pages 21Brewing Circuit Problem Probable Cause Troubleshooting Brewing Circuit Set-upinstructions Water temperatureDripping from sprayhead Lime build up RequiredDry coffee grounds remain Sprayhead Funnel Problem Probable CauseFunnel loading Cause Things to Check DiagnosticsComponent Access ServiceContents Control Board ServiceControl Board Service Control Board Model CEZ-APS/TS/TSRSwitch Panel Service Switch Panel Model CDBC-APS/TC/TS/TSRON/OFF Switch Wiring Brew Switch Wiring Service Brew Switch Start Model CEZ-APS/TS/TSRDispense Valve Dispense ValveLimit Thermostat Limit ThermostatTank Heater Tank HeaterTank Heater Wiring Service Tank HeaterCheck for continuity across the refill valve coil terminals Refill ValveLevelsingle Phase 120V AC 2 Wire 120/208V AC 3 Wire 120/240V AC 3 WireSchematic Wiring Diagram CEZ-APS/TS/TSR Cdbc 15, 20 & 35 APS/TC/TS 120V AC 2 Wire

CEZF, CDBC specifications

The Bunn CEZF and CDBC are two popular commercial coffee brewers offered by Bunn, a leader in the coffee equipment industry. Both models are designed to meet the demands of high-traffic settings such as cafes, restaurants, and other foodservice establishments. They combine advanced technology with user-friendly features to ensure consistent, high-quality coffee with minimal effort.

The Bunn CEZF model is known for its easy-to-use design and efficiency. One of its standout features is the "Digital Brewer" control, which allows operators to adjust brewing parameters such as brew time and water temperature. This level of customization enables baristas to consistently create the perfect cup of coffee tailored to their specific blends. Furthermore, the CEZF has a unique "intelligent" warming plate that maintains the optimal serving temperature without over-extraction, ensuring that each cup of coffee remains flavorful.

On the other hand, the Bunn CDBC incorporates a dual brewing capacity that allows for larger batches of coffee to be made simultaneously. This feature is particularly beneficial in high-demand environments where quick service is essential. The CDBC also utilizes a patented brew control technology, enabling users to select their brew strength with just a few button presses. This flexibility is complemented by its high-performance heating element, which heats water rapidly, ensuring that coffee is brewed at the ideal temperature for optimal extraction.

Both models are equipped with a large water reservoir, ensuring a continuous supply of hot water for brewing. They also feature high-quality stainless steel constructions that enhance durability and make cleaning easier. The intuitive interface on both models simplifies operation, with clear instructions that allow even novice users to brew exceptional coffee right away.

In terms of safety, both the CEZF and CDBC are designed with auto shut-off features and integrated safety protocols, minimizing the risk of overheating and ensuring a secure brewing environment.

Overall, the Bunn CEZF and CDBC are excellent choices for any commercial kitchen or café looking to serve high-quality coffee efficiently. Their advanced features, durability, and ease of use make them top contenders in the commercial brewing category.
Top Page Image Contents