Bunn H5E H5X Service Limit Thermostat, Location Limit thermostat is located on the tank lid

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SERVICE (cont.)

Limit Thermostat

Location:

The limit thermostat is located on the tank lid.

To test the limit thermostat, access will also be needed to the terminal block located at the rear of the dispenser.

P1772

FIG. 6 LIMIT THERMOSTAT

Test Procedure:

1.Disconnect the dispenser from the power source.

2.There are two black wires on the limit thermostat terminals. One comes from the terminal block. The other goes directly to the tank heater terminal. Remove the black wire at the limit thermostat com- ing from the terminal block.

3.Check the voltage across the black wire removed from the limit thermostat and the white wire or red wire of the terminal block with a voltmeter. Con- nect the dispenser to the power source. The indi- cation must be:

a.) 100 to 120 volts ac for 100 to 120 volt models or

b.) 200 to 240 volts ac for 200 to 240 volt models.

4.Disconnect the dispenser from the power source.

If voltage was present as described, reconnect the black wire and proceed to #5.

If voltage was not present as described, refer to the Wiring Diagrams and check the dispenser wiring har- ness.

5.Check for continuity across the terminals of the limit thermostat.

If continuity is not present as described, the circuit is broken. Press the reset button of the limit thermostat and recheck for continuity.

If continuity is not present as described, replace the limit thermostat.

Removal and Replacement:

1.Remove both wires from the limit thermostat ter- minals.

2.Remove the two #10-32 nuts attaching the limit thermostat to the top of the tank.

3.Install the new limit thermostat and secure into place with two #10-32 nuts.

4.Refer to FIG. 7 when reconnecting the wires.

BLK to Terminal Block

Reset

BLK to Tank Heater

 

 

P1776

FIG. 7 LIMIT THERMOSTAT WIRING

 

16

10420 011599

 

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Contents Bunn Warranty ContentsIntroduction User Notices Plumbing Requirements Electrical RequirementsElectrical Hook-Up Cleaning Wall Mounted InstallationInitial SET-UP Draining the DispenserTroubleshooting Problem Probable Cause RemedyTroubleshooting Problem Probable Cause Water boils continuously Temperature control Lime build-upDeposits. Delime as required Dispenser is making unusual noisesService Component AccessLocation Liquid Level Control Flow ChartsGeneral This system controls the liquid level and water tem Service Electronic Controls Liquid Level Control Test ProcedureProblem Boils Excessively Fills Cup Service Electronic Controls Wiring Connections Adjustments 5A. to Increase the TemperatureTest Procedure Service Limit ThermostatLocation Limit thermostat is located on the tank lid Service Safety Overflow Switch SwitchService Solenoid Valve Solenoid ValveLocation Tank heater is located in the tank lid Service Tank HeaterCheck for continuity across the tank heater termi- nals Wiring Diagrams Volts a CWiring Diagrams Schematic Wiring Diagram H5E Volts a C

H5E H5X specifications

The Bunn H5E and H5X coffee brewers are renowned for their high-quality brewing capabilities, designed to meet the demands of both commercial and specialty coffee environments. These brewers stand out due to their innovative features, reliable performance, and user-friendly designs, making them a preferred choice for cafes, restaurants, and other establishments.

One of the primary features of the Bunn H5E and H5X models is their high-efficiency brewing system. These machines utilize a digital brewing control that ensures precise water temperatures and accurate brew times. This technology allows baristas to achieve optimal extraction from coffee grounds, resulting in a consistent, flavorful cup of coffee every time. The machines are equipped with a stainless-steel hot water tank, allowing for rapid brewing and serving for high-volume coffee demands.

The H5E model focuses on versatility in brewing methods. It can accommodate a wide range of coffee types, from traditional drip coffee to specialty brews. With its adjustable brew basket size, users can easily switch between smaller and larger batches, making it suitable for various business sizes and needs. Additionally, the H5X variant features a high-volume design, perfect for busy environments where efficiency and speed are crucial.

Both models incorporate advanced technology such as the Cold Brew Activation feature, allowing users to make cold brew coffee efficiently. The programmable settings enable baristas to customize brewing parameters according to their specific coffee recipes, providing the ability to create unique flavor profiles that cater to customer preferences.

Durability is another significant characteristic of the Bunn H5E and H5X brewers. Built with heavy-duty materials, these machines are designed to withstand the rigorous demands of a high-traffic environment. They also feature an easy-to-clean design, ensuring that maintenance is fast and straightforward.

In summary, the Bunn H5E and H5X coffee brewers are optimized for efficiency, adaptability, and durability, making them ideal for any coffee-serving establishment. Their innovative brewing technologies and user-friendly features empower baristas to deliver exceptional coffee while minimizing downtime, ensuring that every customer enjoys a perfect cup of coffee crafted to perfection.
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