Bunn TWIN, ITB No bypass water Bypass valve, Recipe settings, As required, Sprayhead or air vent

Page 36

TROUBLESHOOTING (cont.)

 

 

 

 

PROBLEM

 

PROBABLE CAUSE

 

REMEDY

No bypass water

 

1. Bypass valve

 

Test the bypass valve. Refer to the

 

 

 

 

test outputs procedures on page

 

 

 

48.

 

 

2. Recipe settings

 

Check to make sure bypass % has

 

 

1. Lime buildup

 

been set for the current recipe.

 

 

 

 

Inspect the probe and tank assembly

 

 

 

 

for excessive lime deposits. Delime

 

 

 

 

as required.

Spitting or unusual steaming from

 

2. Temperature probe

 

Remove the probe from the grom-

sprayhead or air vent.

 

 

 

met and submerge in a water bath

 

 

 

 

of approximately 70°F (21°C).

 

 

 

 

Connect an ohmmeter to the pins

 

 

 

 

in the connector. At 60°F (16°C),

 

 

 

 

the reading should be 15.3k ± 2k

 

 

 

 

OHMS, at 70°F (21°C) the reading

 

 

 

 

should be 11.8k ± 2k OHMS, and

 

 

 

 

at 80°F (27°C) the reading should

 

 

 

 

be 9.3k ± 2k OHMS. If the probe is

 

 

 

 

within these parameters, reconnect

 

 

 

 

to the control board.

 

 

3. Control Board

 

Remove power from the brewer.

 

 

 

 

Connect a voltmeter across the

 

 

 

 

tank heater. Reapply power to the

 

 

 

 

brewer and refer to testing outputs

 

 

 

 

on page 48. If the voltage measured

 

 

 

 

when the tank heater is turned on

 

 

 

 

is very low or zero, then substitute

 

 

 

 

a control board know to be good

 

 

 

 

working order.

Page 36

41581.2 091609

 

Page 35 Page 37
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Contents Post Office BOX SPRINGFIELD, Illinois Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents ITBItcb ICB Programming the BrewerICB Twin Programming the BrewerITB Programming Functions LevelItcb Itcb ITB Set Recipes TempsUsing a Recipe Card to load recipes Procedure to program the coffee nameProcedure to program the AD Procedure for setting Brew Lockout Procedure for setting LanguageSET Language Default Recipe Chart ICB Default AssignmentsUnits ICBVIEW/MODIFY Items ICB Sweet MeterITB/ITCB with Factory Sweetener By Pressing SHOW,When finished, press the other batch size and repeat step # Setting Pulse Brew Easy Pulse BrewSetting Pulse Brew/PreInfusion Manual DONE?Setting Drip Time Setting Sweet Meter Optional on ItcbProcedure Overview only Some Screens Omitted ICB ITB/ITCBProcedure to select switch recipes Procedure to disable a Brew SwitchSelect Done to disable that brew switch No Name Coffee ItcbProcedure for Setting the Recipe SET NEW Recipe Coffee onlySET NEW Coffee Items ICBEnable ADS SET Temp ICB Master Temp ItcbMain Screen Ready DegreeEnable Sanitation Enable SanitationProcedure for enabling sanitation Range 0.0 to 72.0 hrs From the NEW AD? screen, select CardEnable Energy Saver Enable Fresh TimerAble Freshtimer Hot Tea 0.5 to 8.0 hrsProcedure to set the sprayhead flow rate Procedure to adjust the bypass flow rate settingProcedure to adjust the dilution flow rate setting Spray OZ/MProcedure to calibrate the sprayhead flow rate Procedure to calibrate the bypass flow rate ICBProcedure to calibrate the dilution flow rate Itcb Calibrate FlowICB Series Programming Functions Level 2 Procedure to view/reset the brew counters Brew CountersITB/ITCB SET Recipe Temps Itcb only YESService Number Service ToolsFactory Defaults Asset NumberTroubleshooting Troubleshooting ProblemProbable Cause RemedyProblem Probable Cause Remedy Long Ting Obstructions. Clear or replace Refill valveIf the left three digit number Problem Probable Cause Control Board ON/OFF SwitchAutomatic refill will not operate or Water flows into tank continuously Refill valve TingTo it is secure Heating Time TOO Long Recipe settings No bypass water Bypass valveLime buildup Been set for the current recipe As requiredBrew volume adjustment Inconsistent beverage levelServer/dispenser 90 psi 138 and 620 kPaTank heaters Remove and clean lime off tank Heaters For proper extractionSolenoids Vibrate during operationWater temperature Weak beverage Type of paper filterCoffee Be used for proper extraction
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Manual 36 pages 5.47 Kb

ITB, 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.

Furthermore, the TWIN,ITB features an impressive water capacity with a built-in hot water tank. This allows users to brew large batches of coffee without interruption and offers instant hot water for tea, soups, or other hot beverages. The efficient brewing system utilizes pre-infusion technology, which saturates the coffee grounds before extraction, enhancing the overall flavor and aroma of the brewed coffee.

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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