Bunn TU3 service manual ON/OFF Switch Selector Switch Optionalcont

Page 25

SERVICE (cont.)

ON/OFF SWITCH (SELECTOR SWITCH - OPTIONAL)(CONT.)

Brewers W/Sweetener Option:

1.

Disconnect the brewer from the power source.

2.

With a voltmeter, check the voltage across the

 

black wire and white wire on the selector switch.

3.

Connect the brewer to the power source. The in-

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. 17 when reconnecting the wires.

dication must be:

a) 120 volts ac for two wire 120 volt models.

b) 240 volts ac for two wire 240 volt models.

c) 100 volts ac for two wire 100 volt models.

4. Disconnect the brewer from the power source.

If voltage is present as described, proceed to #5.

If voltage is not present as described, refer to the Wir- ing Diagrams and check the wiring harness.

WHI/VIO to Dilution Timer

WHI/VIO

WHI/VIO to Brew Timer TL1

BLK to Power Cord (100V & 120V Models

BLK to Power Connector (240V Models)

WHI to Dilution Timer TL2 (100V & 120V Models) RED to Dilution Timer (240V Models)

5. Disconnect the black and white wires from the

center terminals.

BREWERS W/OUT HALF BATCH OPTION

6.

Disconnect the brown/white and white/violet wires

 

from the right side terminals.

7.

Check for continuity across the center and right

 

terminals in rows one through four when the

 

switch is in the "SWEETÓ position.

If continuity is present as described, replace the wires on the right side and proceed to #8.

WHI/VIO to Brew Timer TL1

GRY to Brew Timer

GRY to Dilution

Timer (Delay)

GRY to Dilution

Timer (Dilution)

BLK to Power Connector

WHI/VIO to Dilution Timer TL1

PNK to Brew Timer

PNK to Dilution Timer (Delay) PNK to Dilution Timer (Dilution)

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

8. Disconnect the white/violet wires on the left side

terminal.

BREWERS W/HALF BATCH OPTION

WHI/BLU to Dilution

BLK to Power Connector

Solenoid

9. Check for continuity across the center and left side

terminals in rows one through four when the

switch is in the "UNSWEETÓ position.

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

WHI/VIO SWEET/UNSWEET

BRN/WHI to Sweetener Solenoid

WHI

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

FIG.17 ON/OFF SWITCH TERMINALS

P1282

Page 25

10225

031804

 

 

Page 24 Page 26
Image 25
Page 24 Page 26
Contents Phone 217 529-6601 FAX 217 TU3BUNN-O-MATIC Commercial Product Warranty ContentsIntroduction #00831.0000 #00656.0000 User Notices#03408.0002 #03409.0002 #03408.0000 #03409.0000 Plumbing Requirements Electrical RequirementsElectrical Hook-Up Stopped Initial SET-UPAuto Sweetener SET-UP Adjusting Brew VolumesInitial SET-UP Operating Controls CleaningCleaning Auto Sweetener CleaningTEA Brewing Problem Probable Cause TroubleshootingRemedy Problem TroubleshootingRemedy Dilution cycle will not start Dilution Solenoid Valve Problem Probable Cause RemedyDrip-out time too long Control Thermostat Spitting or excessive steamingFunnel Tip Ticles clogging the drip-out tipIng Water Temperature See Dilution TimerBeverage overflows dispenser Dispenser Dilution Solenoid ValveDry tea leaves remain in the funnel Remove and clean lime off the tank heater. SeeComponent Access ServiceContents Brew Solenoid Valve ServiceSolenoid valve Brew Timer Service Brew Timer Early ModelsIf voltage is as described, proceed to #7 Service Digital Brew Timer Late ModelsDigital Timer Wiring Control Thermostat Dilution Solenoid Valve Dilution Solenoid ValveDilution Timer Indication must be Limit ThermostatON/OFF Switch Ing Diagrams and check the wiring harnessON/OFF Switch Selector Switch Optionalcont Start Switch Start SwitchSweetener Solenoid Valve Optional Tank Heater 10225 071500 10225 071500 Volts AC Single Phase10225 071500
Related manuals
Manual 2 pages 32.73 Kb

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.
Top Page Image Contents