Bunn TU3 service manual Start Switch

Page 26

SERVICE (cont.)

START SWITCH

O T

FIG. 18 START SWITCH

Location:

P1187.40

4.Check for continuity across the two terminals on the left side of the switch when it is held in the

lower position. Continuity must not be present across these terminals in the upper position.

If continuity is present as described, reconnect the wires, the switch is operating properly.

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

Removal and Replacement:

1.Remove the wires from the switch terminals.

2.Compress the clips inside the hood and gently push the switch through the opening.

3.Push the new switch into the opening and spread the clips to hold the switch captive in the hood.

4.Refer to Fig. 19 when reconnecting the wires.

GRN to Dilution

 

 

 

 

 

 

 

 

 

 

 

 

WHI/YEL to Brew

Timer TL5

 

 

 

 

 

 

 

 

 

 

 

 

 

Timer TL5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED/BLK to

WHI/ORN to

Dilution Timer TL3

Brew Timer TL3

The start switch is located in the front of the hood, above and to the right of the brew funnel.

Test Procedure:

1.Disconnect the brewer from the power source.

2.Remove the wires from all four terminals.

3.Check for continuity across the two terminals on the right side of the switch when it is held in the lower position. Continuity must not be present across these terminals in the upper position.

If continuity is present as described, proceed to #4. If continuity is not present as described, replace the switch.

FIG. 19 START SWITCH TERMINALS

P1283

Page 26

10225

071500

 

 

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Contents TU3 Phone 217 529-6601 FAX 217Introduction ContentsBUNN-O-MATIC Commercial Product Warranty #03408.0002 #03409.0002 #03408.0000 #03409.0000 User Notices#00831.0000 #00656.0000 Electrical Hook-Up Electrical RequirementsPlumbing Requirements Initial SET-UP StoppedInitial SET-UP Adjusting Brew VolumesAuto Sweetener SET-UP Cleaning Operating ControlsTEA Brewing Auto Sweetener CleaningCleaning Remedy TroubleshootingProblem Probable Cause Remedy TroubleshootingProblem Problem Probable Cause Remedy Dilution cycle will not start Dilution Solenoid ValveFunnel Tip Spitting or excessive steamingDrip-out time too long Control Thermostat Ticles clogging the drip-out tipBeverage overflows dispenser Dispenser See Dilution TimerIng Water Temperature Dilution Solenoid ValveRemove and clean lime off the tank heater. See Dry tea leaves remain in the funnelContents ServiceComponent Access Solenoid valve ServiceBrew Solenoid Valve Service Brew Timer Early Models Brew TimerService Digital Brew Timer Late Models If voltage is as described, proceed to #7Digital Timer Wiring Control Thermostat Dilution Solenoid Valve Dilution Solenoid ValveDilution Timer Limit Thermostat Indication must beIng Diagrams and check the wiring harness ON/OFF SwitchON/OFF Switch Selector Switch Optionalcont Start Switch Start SwitchSweetener Solenoid Valve Optional Tank Heater 10225 071500 10225 071500 Single Phase Volts AC10225 071500
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TU3 specifications

The Bunn TU3 is a renowned commercial coffee brewer known for its reliability and performance in bustling coffee shops, restaurants, and diners. Designed to cater to high-demand environments, the TU3 stands out with a variety of features that ensure an optimal brewing experience.

One of the primary characteristics of the Bunn TU3 is its capability to brew large volumes of coffee efficiently. It has a 3-gallon capacity, making it ideal for establishments that serve numerous customers throughout the day. This model can produce up to 19 gallons of coffee per hour, allowing establishments to keep pace with customer demand without sacrificing quality or flavor.

At the heart of the Bunn TU3's performance are its advanced brewing technologies. The brewer features a patented "multi-stream" spray head that evenly distributes hot water over coffee grounds, ensuring optimal extraction for a richer taste. This technology contributes to the consistent flavor profile that customers expect in a quality cup of coffee.

The TU3 is also equipped with a built-in hot water faucet, providing added convenience for brewing tea or instant beverages. Operators can easily access boiling water without interfering with the brewing process, streamlining service during peak hours. The adjustable temperature settings further enhance control over the brewing process, allowing for customization based on the coffee type or personal preference.

In terms of construction, the Bunn TU3 is built to withstand the rigors of commercial use. The brewer boasts a durable stainless steel body that is not only stylish but also easy to clean, helping maintain a professional appearance in any setting. Additionally, the brewer's design incorporates features such as a splash guard and easy-to-use controls, making it user-friendly for staff members.

Energy efficiency is another highlight of the Bunn TU3. Its innovative design helps in reducing energy consumption while still providing rapid brewing capabilities. This feature is particularly appealing to environmentally conscious operators looking to minimize their operational impact.

Overall, the Bunn TU3 coffee brewer combines speed, reliability, and exceptional brewing technology, making it a top choice for businesses that prioritize quality coffee service. Its combination of durability, efficiency, and user-friendly features ensures that it can handle the demands of any high-volume coffee operation, delivering excellent results cup after cup.
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