Bunn T3A, T6A service manual Initial SET-UP Fill & Heat, Initial Timer Adjustment

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INITIAL SET-UP (FILL & HEAT)

CAUTION - The brewer must be disconnected from the power source throughout the Initial Set-Up, except when specified in the instructions.

1.Complete the electrical and plumbing instructions prior to starting this procedure.

2.Remove the top panel and check that the thermostat dial is rotated fully counterclockwise to the “OFF” position.

3.Set the delay dial at eight minutes. Replace top panel. Plug in brewer.

4.Remove the filter screen and metal ferrule from the funnel to speed this procedure. Insert the funnel into the funnel rail and push it until it stops. Rotate the funnel handle to the left or right (T6) to align the funnel discharge over the hole in the reservoir cover. (Model T3 funnel does not rotate.)

5.Turn the ON/OFF switch (T3) to “ON” or SELECTOR switch (T6) to the “LEFT” or “RIGHT” and momentarily depress the start switch. Water will immediately start flowing into the water tank and will automatically shut off at the end of three minutes. Depress the start switch again. During the second period the tank will fill to its capacity and the excess will flow from the sprayhead and out of the funnel.

6.Wait until the flow stops then turn the ON/OFF or SELECTOR switch to the “OFF” position.

7.Rotate the thermostat fully clockwise, (“ON”) and wait for the water tank to stabilize at its proper tempera- ture. During this period some water will come out of the funnel due to expansion, this will not occur thereaf- ter.

8.Turn the ON/OFF switch (T3) to “ON” or SELECTOR switch (T6) to the “LEFT” or “RIGHT” and depress the start switch to cycle the control thermostat.

9.Wait until the flow stops then turn the ON/OFF or SELECTOR switch to the “OFF” position.

10.The brewer is now ready for initial timer adjustment.

INITIAL TIMER ADJUSTMENT

1.Complete the initial fill and heat instructions prior to starting this procedure.

2.With the filter screen and metal ferrule removed from the funnel, water will flow quickly from the funnel and speed this procedure. Insert the funnel into the funnel rails and push it until it stops. Rotate the funnel handle to the left or right (T6) to align the funnel discharge over the hole in the reservoir cover. (Model T3 funnel does not rotate.)

3.Check the delay dial is at eight minutes and the dilution dial is at three minutes and forty-five seconds.

4.Empty the tea reservoir of any water that may have accumulated.

5.Turn the ON/OFF switch to “ON” (T3), or the SELECTOR switch to “LEFT” or “RIGHT”, (T6), and momentarily depress the start switch. After a few seconds water should flow from the funnel into the reservoir. Allow this to continue until it stops and immediately turn the ON/OFF or SELECTOR switch to “OFF”.

6.Measure the water collected in the reservoir. It should equal seventy-six ounces. If it is less or more than this amount, adjust the brew timer accordingly (See Adjusting Brew Volumes) and repeat Steps 5 and 6 until you get the proper amount.

7.Rotate the delay dial fully counterclockwise to speed this next procedure. Drain the reservoir.

8.Momentarily depress the start switch and allow both the concentrate and dilution cycles to occur. When all water stops flowing, the level in the reservoir should be in the middle of the two lower stud heads that hold the dilution water nozzle in place. If it is not correct, rotate the dilution dial up or down accordingly and repeat this step until the proper level is achieved.

9.Return the delay dial to eight minutes.

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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 NoticesElectrical Hook-Up Electrical RequirementsPlumbing Requirements Initial SET-UP Fill & Heat Initial Timer AdjustmentOperating Controls Adjusting Brew VolumesON/OFF Switch T3 only Selector Switch T6 only CleaningStart Switch TEA BrewingRemedy TroubleshootingProblem Probable Cause Brew cycle will not start Probable Cause Remedy TroubleshootingProblem Dilution cycle will not start Dilution Solenoid Valve Problem Probable Cause RemedyDripping from sprayhead Spitting or excessive steamingControl Thermostat Drip-out time too long Beverage overflows dispenser Weak beverage Plumbing Lines Water Supply Tank Heater Dry tea leaves remain in the funnelBrewer is making unusal noises Contents ServiceComponent Access Brew Solenoid Valve ServiceSolenoid Valve Terminals Service Brew Solenoid ValveIndication must be Brew TimerIf voltage is present as described, proceed to #4 If continuity is not present as described, refer toIf 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 sourceSource. The indication must be Dilution TimerClockwise 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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