Manuals / Bunn / Kitchen Appliance / Coffeemaker

Bunn TB6Q manual Inlet Valves

Models: TB6Q TB6

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SERVICE (cont.)

 

 

 

 

INLET VALVES

 

 

 

three wire 120/240 volt models.

 

 

 

 

 

 

 

 

 

 

 

 

b) 200 to 230 volts ac for two wire 200 or 230 volt

 

 

 

 

 

 

models.

 

 

 

 

 

7.

Disconnect the brewer from the power source,

 

 

 

 

 

If voltage is present as described, proceed to #8

 

 

 

 

 

If voltage is not present as described, refer to Wiring

 

 

 

 

 

Diagrams and check brewer wiring harness.

 

 

 

 

 

8.

Check for continuity across the solenoid termi-

 

 

 

 

 

 

nals.

 

 

 

 

 

If continuity is present as described, reconnect the

 

 

 

 

 

white and black wire from the timer.

 

 

 

 

 

If continuity is not present as described, replace the

 

FIG. 17-1 INLET VALVES

 

 

 

 

 

 

 

solenoid valve.

 

 

 

 

Location:

 

 

Removal and Replacement:

The solenoid valve(s) are located inside the trunk

1.

Disconnect the brewer from the power source.

on the lower center part of the component bracket. So-

2.

Turn off the water supply to the brewer.

lenoids in the early models are located in the hood.

3.

Remove the wires from the solenoid.

 

 

 

 

 

Test Procedures:

 

 

4.

Disconnect the water lines to and from the solenoid

 

 

 

valve.

1. Check the solenoid valve for coil action. With "ON/

 

5.

Remove the two screws securing the solenoid

OFF" switch in the "ON' upper position press start

 

mounting bracket to the component bracket.

switch and listen carefully in the vicinity of the

 

6.

Install new solenoid valve to the component

solenoid valve for a" clicking" sound

as the coil

 

bracket.

magnet attracts.

 

 

 

 

 

7.

Securely fasten the water lines to and from the

2. Disconnect the brewer from the power source.

 

solenoid valve.

 

 

 

 

 

 

If the sound is heard as described and water will not

8.

Refer to schematics when reconnecting the

 

wires.

pass through the solenoid valve, there may be a block-

 

 

 

age in the water line before the solenoid valve or, the

 

 

solenoid valve may require inspection for wear, and

 

 

removal of waterborne particles.

 

 

 

 

If the sound is not heard as described,

proceed to

 

 

#3.

 

 

 

 

 

 

3. Disconnect the brewer from the power source.

4. Connect a voltmeter across the solenoid terminals (leave wires connected).

5. Connect the brewer to the power source. With the "ON/OFF" switch in the "ON" upper position press the start switch.

6. Check the voltage across the solenoid. The indica- tion must be:

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

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Bunn TB6Q manual Inlet Valves
Page 16 Page 18

TB6Q, TB6 specifications

The Bunn TB6Q, TB3-LP, TB6, TB3Q, and TB3Q-LP coffee brewers are a popular series of commercial machines designed for high efficiency and optimal performance in busy environments such as cafes, restaurants, and offices. These machines are crafted with a focus on quality, dependability, and advanced brewing technology to deliver a superior coffee experience.

One of the standout features across the Bunn TB series is the ability to brew large quantities of coffee quickly. The TB6Q, for instance, can brew up to 6 gallons of coffee per hour. This high volume brewing capability ensures that establishments can keep up with demand, especially during peak hours. Additionally, the machines come with a unique design that incorporates a pre-infusion feature, allowing for the coffee grounds to be evenly saturated before brewing begins, enhancing the flavor extraction process.

The TB3-LP model is designed for low-profile applications where counter space may be limited. Despite its compact design, it still offers impressive performance, brewing up to 3.8 gallons per hour. The low-profile feature makes it an ideal choice for settings that require efficiency and space optimization without compromising on the quality of the brew.

Another notable member of the series, the TB3Q and TB3Q-LP, feature a quick brew ratio, allowing users to brew up to 3 gallons of coffee in just a few minutes. These models are equipped with easy-to-use controls for simplified operation, making them perfect for staff training and user accessibility.

All models in the TB series include a hot water faucet, allowing users to dispense hot water for tea or other hot beverages quickly. This versatility adds significant value, especially in multi-beverage settings.

Regarding durability, the Bunn TB series is constructed with high-quality materials, ensuring longevity and reliability. The machines also feature internal components that are easy to access for maintenance, thus reducing downtime and improving the overall efficiency of the machine.

In terms of technology, these brewers often incorporate advanced diagnostics to promptly identify service needs or issues. The machines come with a precise brewing temperature control system that ensures each cup is brewed at the optimal temperature for maximum flavor extraction.

Overall, Bunn's TB6Q, TB3-LP, TB6, TB3Q, and TB3Q-LP coffee brewers represent the culmination of advanced brewing technology and practical design for commercial coffee solutions. Their efficiency, quality, and ease of use make them a staple in many establishments, solidifying Bunn's reputation as a leader in the coffee brewing industry.