Bunn TNTF-3, TNT-3 manual Brew Timer HOT TEA Late Models, If voltage is as described, proceed to #7

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SERVICE (cont.)

BREW TIMER (HOT TEA - LATE MODELS)

NEW STYLE

 

FIG. 8 DIGITAL HOT TEA BREW TIMER

P2213.60

Location:

The hot tea brew timer is located in the hood, on the left side.

Test Procedure.

NOTE: Do not remove or install wires while timer board is installed. Pressure applied to one side may cause damage to the board.

1.Disconnect the brewer from the power source and remove hood cover.

2.Remove the two #8-32 screws securing circuit board to the mounting bracket.

3.Remove circuit board and spacers (as required).

4.With a voltmeter, check the voltage across termi- nals TL1 and TL2 when the "ON/OFF" switch is in the "ON" position and the ICED/OFF/HOT switch is in the "HOT" position. Connect the brewer to the power source. The indication must be 120 volts ac for two wire 120 volt models and three wire 120/ 208 volt models.

5.Disconnect the brewer from the power source.

If voltage is present as described, proceed to #6.

If voltage is not present as described, refer to the Wiring Diagram and check the brewer wiring harness.

6.With a voltmeter, check the voltage across termi- nals TL1 and TL4 when the "ON/OFF" switch is in the "ON" position and the ICED/OFF/HOT switch is in the "HOT" position. Connect the brewer to the power source. The indication must be 0 volts.

If voltage is as described, proceed to #7.

If voltage is not as described, disconnect the brewer from the power source and replace the timer.

7.With a voltmeter, check the voltage across termi- nals TL1 and TL4 when the "ON/OFF" switch is in the "ON" position and the ICED/OFF/HOT switch is in the "HOT" position. Connect the brewer to the power source and press the "START" switch. The indication must be 120 volts ac for two wire 120 volt models and three wire 120/208 volt models.

If voltage is present as described, the brew timer is operating properly. Reset the timer as required, to obtain the desired brew volume.

If voltage is not present as described, disconnect the brewer from the power source and replace the timer.

Removal and Replacement:

1.Remove the two #8-32 screws securing circuit board to the mounting bracket.

2.Remove circuit board and spacers (as required).

3.Remove all wires from the timer.

4.Attach all wires to the replacement timer board prior to installation to the component mounting bracket. Refer to FIG. 9 when reconnecting the wires.

5.Install new circuit board with spacers (as re- quired) to the component mounting bracket.

6.Adjust the timer as described below.

Timer Setting:

NOTE: Prior to setting or modifying volumes, check that the brewer is connected to water supply, the tank is properly filled, and a funnel and server are in place. NOTE: All volume settings must be done with the sprayhead installed.

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Contents Post Office BOX SPRINGFIELD, Illinois Telephone 217 529-6601 FAX 217Contents WarrantyIntroduction User Notices #00831.0000 #00656.0000 #03408.0000 #03409.0000Electrical Requirements Plumbing RequirementsElectrical Hook-Up Plumbing Requirements Initial SET-UPAdjusting Brew Volumes Initial SET-UPStart Switch CleaningICED/OFF/HOT Switch Operating ControlsTroubleshooting Problem Probable CauseRemedy Brew cycles will not start Brew Timer TroubleshootingProblem RemedyProblem Probable Cause Remedy Probable Cause Remedy Position Water flows into tank continuously Brew TimerOr HOT position Beverage overflows dispenser DispenserDry tea leaves remain Remove and clean lime off the tank heater. SeeWeak beverage Filter Type Tea Sprayhead Funnel Loading Funnel Brewer is making unusal noises SolenoidsService Component AccessContents Service Brew Solenoid Valve HOT TEASolenoid valve Brew Solenoid Valve Iced TEA Brew Timer HOT TEA Early Models HOT TEA Brew TimerBrew Timer HOT TEA Late Models If voltage is as described, proceed to #7Service Brew Timer HOT TEA Late MODELScont Digital Timer WiringBrew Timer Iced TEA Early Models Iced TEA Brew Timer Brew Timer Iced TEA Late MODELScont Test Procedures Disconnect the brewer from the power source Control ThermostatTest Procedure Disconnect the brewer from the power source Dilution Solenoid ValveLimit Thermostat Limit ThermostatICED/OFF/HOT Switch ICED/OFF/HOT SwitchStart Switch Start SwitchTank Heater Indication must beEls Service Thermal Fuse Models W/Faucet Only Thermal Fuse28201
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TNT-3, TNTF-3 specifications

The Bunn TNTF-3 is a high-performance coffee brewer designed for commercial use, specifically suited for busy environments such as restaurants and cafes. This machine seamlessly combines efficiency with quality, making it a popular choice for professionals who demand the best in their equipment.

One of the standout features of the Bunn TNTF-3 is its three warmer plates, which allow users to brew and store multiple batches of coffee simultaneously. This design ensures that there’s always fresh coffee ready for customers, minimizing downtime during peak service hours. Each warmer has its own independent control, providing versatility in temperature settings to accommodate different coffee types and customer preferences.

The Bunn TNTF-3 utilizes a patented SplashGard funnel that helps to keep the brewing process clean and efficient. This technology not only prevents splashes and messes but also improves user safety by protecting operators from hot water and coffee spills. The brewer’s stainless steel construction contributes to its durability, enhancing its longevity in a high-volume setting.

In terms of brewing capabilities, the TNTF-3 can prepare up to 3.8 gallons of coffee per hour, making it ideal for both small and large operations. The machine is equipped with a brew control feature that allows users to customize the strength and flavor of the coffee, ensuring that each cup meets the highest standards. Additionally, the digital timer and brew status light offer convenient monitoring at a glance.

For ease of maintenance, the Bunn TNTF-3 is designed with accessibility in mind. With removable components and straightforward cleaning procedures, operators can keep the machine in top condition without significant downtime. The brewer also features a low-water shut-off system, which helps to protect the unit from damage due to insufficient water levels.

Overall, the Bunn TNTF-3 embodies a blend of innovative technology, practical design, and optimal performance, making it a powerful tool for coffee professionals. Whether it be for daily service or special events, the Bunn TNTF-3 stands out as a reliable coffee brewing solution that consistently delivers rich, flavorful coffee with every batch. Its combination of speed, safety, and quality assurance solidifies its status as a preferred choice in commercial settings.
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