Bunn TWF service manual Start Switch

Page 27

SERVICE (cont.)

START SWITCH

4.Check for continuity across the two terminals on the left side of the switch when it is held in the lower position. Continuity must not be present across these terminals in the upper position.

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

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

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. 23 when reconnecting the wires.

 

P1959.60

FIG. 22 START SWITCH

 

 

 

 

Location:

The start switch is located in the front of the hood, above and to the right of the brew funnel.

Test Procedure:

WHI/ORN to

Coffee Brew

Timer TL3

WHI/YEL to

Coffee Brew

Timer TL5

ORN to Iced Tea Brew Timer TL3

YEL to Iced

Tea Brew

Timer TL5

1.Disconnect the brewer from the power source.

2.Remove the wires from all four terminals.

3.Check for continuity across the two terminals on the right side of the switch when it is held in the lower position. Continuity must not be present across these terminals in the upper position.

If continuity is present as described, proceed to #4. If continuity is not present as described, replace the switch.

P1368

FIG. 23 START SWITCH TERMINALS

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10510

081599

 

 

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Contents Telephone 217 529-6601 FAX 217 Post Office BOX SPRINGFIELD, IllinoisContents WarrantyIntroduction #00656.0000 #03408.0000 #00831.0000 #02822.0000 #03409.0000 User NoticesElectrical Requirements Plumbing RequirementsElectrical Hook-Up Initial SET-UP Cleaning Adjusting Brew VolumesBrewing TEA/OFF/COFFEE SwitchStart Switch Operating ControlsProblem Probable Cause Remedy TroubleshootingProblem Probable Cause Remedy TroubleshootingDilution Solenoid Valve Dilution Iced Tea cycle will not Start SwitchBrew Timer Iced Tea Brew Solenoid Valve Iced TeaDrip-out time too long Funnel Tip Level in the dispenser. 750 GPM Pointing towards brewerSpitting or excessive steaming Lime Build-up Serious leaksRemedy ProblemUsed for proper extraction Water TemperatureWeak beverage Filter Type Tea or CoffeeService Component AccessContents Service Brew Solenoid Valve HOT CoffeeSolenoid valve Brew Solenoid Valve Iced TEA Brew Timer HOT COFFEE- Early Models If voltage is as described, proceed to #7 Digital Brew TimerDigital Timer Wiring Service Digital Brew Timer HOT Coffee Late ModelscontIced TEA Brew Timer Terminals Service Brew Timer Iced TEA Early ModelsService Digital Brew Timer Iced TEA Late Models Service Digital Brew Timer Iced TEA Late Modelscont Control Thermostat Test Procedures Disconnect the brewer from the power sourceDilution Solenoid Valve Limit Thermostat Remove the blue wire from the limit thermostatTEA/OFF/COFFEE Switch TEA/OFF/COFFEE SwitchStart Switch Start SwitchTank Heater Tank HeaterThermal Fuse Service Thermal Fuse Models W/Faucet OnlyGRY to Iced Tea Brew Timer PNK to Iced Tea Service Half Batch Switch Optional10510 081599 Ready Indicator BLU

TWF specifications

The Bunn TWF series is a versatile and high-performance coffee brewing system designed to meet the demanding needs of commercial coffee establishments. Renowned for its reliability and consistency, the Bunn TWF is engineered for high volume production while maintaining exceptional quality in every cup.

One of the main features of the Bunn TWF is its dual-voltage capability, which makes it adaptable to various electrical systems, ensuring that businesses can use it in different locations with ease. It is compatible with both 120V and 220V outlets, providing flexibility for commercial environments.

The TWF employs Bunn's innovative brewing technology, which includes a patented digital pulse brew feature. This system optimizes the extraction process by controlling the flow rate and brewing time, enhancing the flavor profile of the coffee and ensuring that each batch is rich and full-bodied. The ThermoFresh technology allows for excellent thermal retention, ensuring that the coffee remains hot and fresh for extended periods without a heated plate that can alter the taste.

Another significant characteristic of the Bunn TWF is its brewing capacity. The machine can brew up to 16.3 gallons of coffee per hour, making it an ideal choice for busy cafes, restaurants, and catering services. The large capacity also translates to less downtime, enabling staff to serve customers more efficiently.

The Bunn TWF is equipped with a user-friendly control interface, featuring intuitive buttons and an easy-to-read display. This allows for precise programming and brewing options, accommodating various coffee types and recipes. Users can easily set up their preferred brewing parameters, making it convenient to replicate the same great taste repeatedly.

Moreover, the design of the Bunn TWF emphasizes durability and ease of maintenance. Constructed from high-quality materials, it can withstand the rigors of daily use in a bustling coffee shop environment. The machine is also designed for easy cleaning, with removable components that simplify upkeep and prolong its lifespan.

In conclusion, the Bunn TWF is an exceptional choice for those in the coffee business looking to elevate their brewing game. With its outstanding features, advanced technologies, and user-focused design, it stands out as a leader in commercial coffee brewing solutions. Whether for a high-traffic café or a catering operation, the Bunn TWF is engineered to deliver quality and efficiency while satisfying the most discerning coffee connoisseurs.
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