Bunn System III manual Terminals

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SERVICE (cont.)

LEVEL CONTROL BOARD AND LEVEL PROBE (Electro/ mechanical only)(cont.)

b.) 200 to 240 volts ac for two wire 200 or 240 volt models after a delay of approximately 1 second.

17. Disconnect the brewer from the power source.

If voltage is present as described, reinstall the probe, the level control board and level probe are operating properly.

If voltage is not present as described, check the pink probe wire for continuity. If no continuity is present, replace or repair pink wire.

Removal and Replacement:

1.Remove all wires from the level control board.

2.Remove two #8-32 screws and lockwashers hold- ing level control board to component bracket.

3.Install the new level control board to the compo- nent bracket. Make certain that the lockwashers are between the level control board and the com- ponent bracket.

4.Refer to Fig. 16 when reconnecting the wires.

T4 PNK to Probe

T3 WHI to Terminal Block (WHI

Insert on 120/208 or 120/240V

Brewers)

T3 RED to Terminal Block (RED

Insert on 200V or 240V brewers)

T2 BLU from Overflow Protection

Switch

T1 VIO to Solenoid Coil

FIG. 16 LIQUID LEVEL CONTROL BOARD

P1100

 

TERMINALS

 

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27362

092900

 

 

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Contents Bunn Warranty User Notices 20201.5600 00831.0000 00656.0000 03408.0000 03409.0000Models with electro/mechanical thermostats Models with digital brewer control assemblyElectrical Requirements Plumbing RequirementsElectro/mechanical brewers Adjusting Brew VolumesInitial SET-UP Start Switch CleaningBrew Selector Switch Operating ControlsTroubleshooting Problem Probable Cause RemedyBrew cycle will not start Troubleshooting ProblemOverflow protection switch Digital Brewer Control Assem- bly DBCTroubleshooting Problem Probable Cause Remedy Sprayhead or airvent Mechanical Triac assembly DBCWarmer element StepTimer adjustment Time adjustment ElectroDBC volume adjustment Procedures. See page 34 orTroubleshooting Problem Cannot access the DBC Digital brewer control DBC display is blank Digital brewer controlContents ServiceComponent Access Service Bypass ValveService LocationBrew Selector Switch ELECTRO/MECHANICALContactor Assembly ELECTRO/MECHANICAL only Gently remove the capillary bulb and grommet from the tankService Contactor Assembly ELECTRO/MECHANICAL only Contactor Assembly TerminalsTest Procedures Disconnect the brewer from the power source OnlyDispense Valve ElectromechanicalDigital Brewer Control Board and Display DBC TION, Entry and DescriptionService Digital Brewer Control Board and Display DBC TRIAC/HEAT Sink Assembly DBC only TRIAC/HEAT SinkP2231.30 Terminals Limit Thermostat Limit ThermostatThree wire 120/240 volt models Service ON/OFF Warmer SwitchBlack wire from the center terminal ModelsOverflow Protection Switch Test Procedure Disconnect the brewer from the power sourceService Solenoid Valve Refill Refill Solenoid ValveRefill Solenoid Terminals Start Switch Tank Heater LocationTimer ELECTRO/MECHANICAL Onlyearly Models Digital Timer ELECTRO/MECHANICAL only Late Models If voltage is as described, proceed to #7Timer Setting Digital Timer WiringWarmer Element Lower 27362 092900 Lower

System III specifications

The Bunn System III is a versatile and efficient commercial brewing system designed for high-demand environments such as cafés, restaurants, and catering operations. Renowned for its reliability and performance, the System III combines advanced brewing technology with user-friendly features to deliver exceptional coffee consistently.

One of the key features of the Bunn System III is its innovative brewing technology, which employs a unique infuser system. This design allows for optimal extraction of coffee flavors by ensuring that hot water is evenly distributed over the coffee grounds, maximizing flavor and ensuring a rich, balanced cup every time. The brewing system can brew up to 3.8 gallons of coffee per hour, making it an ideal choice for busy establishments.

The System III is equipped with an impressive built-in water heater that maintains a temperature of approximately 200°F, which is crucial for brewing coffee at the ideal temperature. This consistent temperature control minimizes the risk of under-extraction or over-extraction, resulting in better-tasting coffee. Additionally, the hot water faucet feature allows users to brew tea or instant beverages on demand, further enhancing the system's versatility.

Another characteristic that sets the Bunn System III apart is its user-friendly interface. The system is designed with intuitive controls, allowing baristas and kitchen staff to operate it with minimal training. The easy-to-read digital display provides critical information such as brew time and water temperature, ensuring that users can monitor the brewing process closely.

Durability is a hallmark of the Bunn System III. Constructed from high-quality materials, this brewing system is designed to withstand the rigors of commercial use. Its robust design ensures longevity and minimizes the need for frequent maintenance, making it a cost-effective choice for businesses.

The Bunn System III also features a large-capacity brew basket, capable of holding ample coffee grounds for high-volume brewing. This basket, combined with the system's efficient design, allows for quick and easy brewing, making it perfect for high traffic situations.

In conclusion, the Bunn System III coffee brewing system is a top choice for commercial coffee operations. Its advanced brewing technology, consistent temperature control, user-friendly features, and durable construction combine to create an exceptional brewing experience. Whether in a café, restaurant, or catering service, the Bunn System III stands out as an indispensable tool for delivering high-quality coffee efficiently.
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