Bunn T6A, T3A service manual Service Digital Brew Timer Late Modelscont, Digital Timer Wiring

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SERVICE (cont.)

DIGITAL BREW TIMER (Late Models)(cont.)

1.Modifying brew volumes. To modify a brew vol- ume, first check that the SET/LOCK switch is in the “SET” position on the circuit board.

To increase a brew volume, place the ON/OFF switch in the “ON” position, press and hold the START switch until three clicks are heard. Release the switch and press it again one or more times. (Failure to re- lease the switch within two seconds after the third click causes the volume setting to be aborted and pre- vious volume setting will remain in memory.) Each time the switch is pressed, two seconds are added to the brew time period. Allow the brew cycle to finish in order to verify that the desired volume has been achieved.

To decrease a brew volume, place the ON/OFF switch in the “ON” position, press and release the START switch once for every two-second interval to be removed from the total brew time period; then im- mediately press and hold down the START switch until three clicks are heard. Release the switch. (Failure to release the switch within two seconds after the third click causes the volume setting to be aborted and pre- vious volume setting will remain in memory). Allow the brew cycle to finish in order to verify that the de- sired volume has been achieved.

2.Setting brew volumes. To set a brew volume, first check that the SET/LOCK switch is in the “SET” position on the circuit board. Place the ON/OFF switch in the “ON” position, press and hold the START switch until three distinct clicks are heard and then release the switch. (Failure to release the switch within two seconds after the third click causes the volume set- ting to be aborted and previous volume setting will remain in memory.)

View the level of the liquid being dispensed. When the desired level is reached, turn the ON/OFF switch to “OFF”.

NOTE: Several ounces of water will continue to sy- phon from the tank after turning the switch “OFF”. The brewer remembers this volume and will continue to brew batches of this size until the volume setting procedure is repeated.

NOTE: When brewing coffee, volume will decrease due to absorption by the coffee grounds.

3.Setting programming disable feature. If it be- comes necessary to prevent anyone from changing brew time once programmed, you can set the SET/ LOCK switch to the “LOCK” position. This will pre- vent any further programming until switch is once again put into the “SET” position.

NOTE - Brewers with half-batch option will have to be set for both full and half-batch settings.

TL1 - WHI/VIO to Dilution Timer and

WHI/VIO to ON/OFF Switch

TL2 - WHI to Power Cord (100V & 120V) or

RED to Power Connector (240V) and

WHI to Dilution Timer (100V & 120V) or

RED to Dilution Timer (240V)

TL3 - WHI/ORN to Start Switch

TL4 - WHI/GRN to Brew Solenoid

TL5 - WHI/YEL to Start Switch

J2-2 - PNK to Selector Switch (Half Batch Option only) J2-3 - GRY to Selector Switch (Half Batch Option only)

P2037

FIG. 7 DIGITAL TIMER WIRING

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10145

072600

 

 

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Contents Telephone 217 529-6601 FAX 217 Post Office BOX SPRINGFIELD, IllinoisIntroduction Warranty#00831.0000 #00656.0000 #03408.0000 #03409.0000 User NoticesPlumbing Requirements Electrical RequirementsElectrical Hook-Up Initial SET-UP Fill & Heat Initial Timer AdjustmentON/OFF Switch T3 only Adjusting Brew VolumesOperating Controls TEA Brewing CleaningSelector Switch T6 only Start SwitchProblem Probable Cause Brew cycle will not start TroubleshootingRemedy Problem TroubleshootingProbable Cause Remedy Dilution cycle will not start Dilution Solenoid Valve Problem Probable Cause RemedyControl Thermostat Drip-out time too long Spitting or excessive steamingDripping from sprayhead Beverage overflows dispenser Weak beverage Brewer is making unusal noises Dry tea leaves remain in the funnelPlumbing Lines Water Supply Tank Heater Component Access ServiceContents Brew Solenoid Valve ServiceSolenoid Valve Terminals Service Brew Solenoid ValveIf continuity is not present as described, refer to Brew TimerIndication must be If voltage is present as described, proceed to #4If voltage is as described, proceed to #7 Service Digital Brew Timer Late ModelsDigital Timer Wiring Service Digital Brew Timer Late ModelscontControl Thermostat Dilution Solenoid Valves Test Procedure Disconnect the brewer from the power sourceClockwise Dilution TimerSource. The indication must be With a voltmeter, check the voltage across Limit ThermostatON/OFF or Selector Switch WHI/VIO On left or right positionStart Switch Tank Heater 10145 072600 10145 072600 10145 072600
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T6, T6A, T3A specifications

The Bunn T6A, T3A, T6, and T3 are part of a distinguished line of commercial coffee brewers engineered for consistency, efficiency, and top-notch brew quality. These machines are well-suited for cafes, restaurants, and specialty coffee shops where reliability and performance are paramount.

The Bunn T6A is designed to brew large quantities, accommodating high-demand environments. With a capacity of six gallons per hour, this machine can quickly fulfill orders, ensuring that customers receive fresh, hot coffee without delay. It features a programmable touchpad that allows users to customize brew settings, enabling them to fine-tune extraction times and temperatures for various coffee blends. The T6A’s dual-float system provides precise water control, preventing overflow and enhancing safety.

The Bunn T3A is another exceptional model in this lineup, designed for both versatility and speed. It boasts a three-gallon capacity, making it ideal for medium-sized establishments. The T3A is equipped with Bunn's patented SplashGard funnel, which helps protect users from hot water splashes, providing an additional layer of safety. Its advanced brewing technology allows for an optimal brew temperature range, ensuring that coffee is extracted to perfection every time.

The Bunn T6 is similar to the T6A in its heavy-duty construction but focuses on a slightly different brewing capacity. Capable of producing back-to-back brews, the T6 can keep up with high-volume demands. This model features a digital brewer interface, making it user-friendly while providing detailed feedback on the brewing process. Its robust design allows for easy maintenance, ensuring it remains in peak operating condition.

Lastly, the Bunn T3 serves as a compact alternative in the series, suited for locations with limited space but requiring high-quality coffee. The T3 can brew up to three gallons per hour, seamlessly fitting into smaller setups without compromising on performance. Like its counterparts, it features programmable settings and quick brew times, providing flexibility and efficiency.

Together, the Bunn T6A, T3A, T6, and T3 represent a versatile range of commercial coffee brewing solutions. Each model is designed to deliver exceptional coffee, maintain consistent quality, and provide ease of use, making them integral tools for any serious coffee business. Whether high volume or limited space, Bunn caters to diverse needs while upholding the highest standards in coffee brewing technology.
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