Bunn TWIN service manual CEZ Adjustments & Optional Settings

Page 7

CEZ ADJUSTMENTS & OPTIONAL SETTINGS

IMPORTANT: The tank must be full and refill solenoid shut off prior to making these adjustments. Sprayhead must be installed while making these adjustments.

J7 READY

LED

J6

COUNTER TRM1

TRM2

+

+

J3

LOCK UNLOCK

+ +

BOMPART

J1

 

NO. 28742-

 

+

Adjusting Brew Volumes (Each Brew Station must be adjusted separately)

The brewer is factory set to deliver 64 ounces ± 2 for each brew cycle.

BREW VOLUME SET-UP: Use the following steps when the setting is unknown or a differ- ent circuit board is being installed.

1.

Place an empty funnel in the funnel rails

 

and an empty decanter or graduated ves-

 

sel beneath the funnel.

2.

Place the "ON/OFF" switch in the "ON",

 

upper position.

(Brew Lockout Enabled)

(Brew Lockout Disabled)

LOCK UNLOCK

LOCK UNLOCK

 

P1864

J5

 

J2

CAL

205

 

TEMPERATURE

3.

Press and hold the brew start button until

 

you hear the brew solenoid click on-and-

 

off three times (approximately 5 seconds).

 

Release the button.

4.

Allow the cycle to continue until the de-

 

sired amount of water is dispensed and

then turn "OFF" the brewer.

J6

4

1

J7 READY

LED

J6

COUNTER TRM1

TRM2

+

+

 

 

J3

 

 

LOCK UNLOCK

 

 

+ +

BOMPART

J1

 

NO. 28742-

 

+

The brewer is now set to dispense this amount of water for each subsequent brew cycle.

To increase the amount of water for each brew cycle place an empty funnel in the funnel rails and an empty decanter or graduated vessel beneath the funnel. Place the "ON/OFF" switch in the "ON", upper position. Press and hold the "BREW" switch until you hear the solenoid click on-and-off three times (ap- proximately 5 seconds), then release the "BREW" switch. Momentarily press and re- lease the "BREW" switch once for each ounce (approximate) of water to be added to the

TEMPERATURE

205°

(200°)

(195°)

(190°)

(185°)

CAL

TEMPERATURE

205°

(200°)

(195°)

(190°)

(185°)

CAL

J5

 

J2

CAL

205

 

TEMPERATURE

 

P1865

prior setting and allow the brew cycle to finish.

To decrease the amount of water for each brew cycle place an empty funnel in the fun- nel rails and an empty decanter or graduated vessel beneath the funnel. Place the "ON/OFF" switch in the "ON", upper position. Momen- tarily press and release the "BREW" switch once for each ounce (approximate) of water to be removed from the existing setting. Press and hold the "BREW" switch until you hear the solenoid click on-and-off three times (ap- proximately 5 seconds), then release the "BREW" switch and allow the cycle to finish.

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29319 041599

 

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Contents CEZ Cdbc Twin Introduction ContentsUser Notices Plumbing Requirements Electrical RequirementsElectrical Hook-Up Ready Indicator ON/OFF SwitchBrew Switch Additional Warmer SwitchesInitial SET-UP CleaningCoffee Brewing CEZ Adjustments & Optional Settings Setting Brew Lockout Cdbc Adjustments & Optional SettingsSetting Brew Temperature Displaying Brew TemperatureAdjusting Brew Volumes Pulse Brew Setup Procedure Cdbc Twin & Cdbcf Twin Before troubleshooting this brewer, check for the following TroubleshootingRemedy TroubleshootingRefill Circuit Problem Probable CauseProblem Probable Cause Remedy Heating Circuit Problem Probable Cause Remedy Control board 4b. Temperature Probe CEZ Remove the probe from3 of the J5 connector. At Ings are takenBilize. If temperature in tank is 4 of the J3 connector. At2b. Temperature Probe CEZ Remove the probe from Set the temperature to 200FBrew cycle will not start Brewing Circuit ProblemTroubleshooting Brewing Circuit Probable Cause Remedy Holes are clear and unob Move the two wires. Check forSupply and check wiring SwitchCause Things to Check DiagnosticsComponent Access ServiceContents Disconnect the 11-pin connector from the control panel Service PC Control Board Model CdbcControl Boards CEZ Service PC Control Board Model CEZSwitch Panels Cdbc Service Switch Panel Model CdbcService ON/OFF Switches Model CEZ Bottom switch terminal Service Brew Switch Start Model CEZMinals when the switch is released Dispense Valve ServiceLimit Thermostats Limit ThermostatTank Heater Tank HeatersTank Heater Wiring Service Tank HeatersCheck for continuity across the refill valve coil terminals Refill ValveWarmer Elements Warmer ElementsSchematic Wiring Diagram CEZ Twin 0/6 Left Schematic Diagramwiring Twincdbc Schematic Wiring Diagram Cdbc Twin 2/2 Right
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TWIN specifications

The Bunn TWIN,ITB is a remarkable coffee brewing system designed for commercial use, aimed at establishments that require a high volume of coffee while maintaining superior quality. This innovative brewer stands out through its dual brewing capability, allowing users to brew two different types of coffee simultaneously. This feature is particularly beneficial for cafes, restaurants, and other food service locations where diverse customer preferences must be met efficiently.

One of the main features of the Bunn TWIN,ITB is its advanced brewing technology. The system utilizes Bunn's patented brewing process, ensuring optimal coffee extraction and flavor profile every time. It employs a digitally controlled brew timer and state-of-the-art heating elements, providing precise temperature control essential for achieving the ideal brew. This technology allows for consistent results, ensuring that each cup meets the high standards expected in a commercial setting.

The design of the TWIN,ITB is user-friendly and intuitive. It includes an easy-to-read LED display that simplifies programming and monitoring of the brewing process. This streamlined interface enables baristas to adjust settings quickly and efficiently, significantly reducing wait times for customers. Additionally, the unit's low-profile design enables it to fit seamlessly into various kitchen layouts and countertops, optimizing valuable space.

Durability and reliability are at the forefront of the Bunn TWIN,ITB's construction. Built with high-quality materials, the brewer is designed to withstand the rigors of intense daily use. Its stainless-steel finish not only provides a sleek and professional appearance but also makes it easy to clean and maintain, ensuring longevity and excellent performance throughout its lifespan.

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In summary, the Bunn TWIN,ITB is an exceptional choice for any commercial establishment looking to provide high-quality coffee efficiently. Its dual brewing capabilities, advanced technologies, user-friendly design, durability, and additional features make it a valuable addition to any coffee service operation. Whether busy mornings or afternoon rushes, this brewer ensures that every cup of coffee meets the high standards of taste and quality that customers expect.
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