Bunn H5E H5X service manual Adjustments, 5A. to Increase the Temperature

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SERVICE (cont.)

Electronic Controls (cont.)

Adjustments

This dispenser can maintain any temperature between 85 and 208°F by selecting and setting one of five vari- able range control potentiometers.

1.Fill the dispenser according to the steps in the Ini- tial Set-up.

2.Select the range containing the desired tempera- ture by plugging the two-pin socket onto the mat- ing connector of one of the range control boards. Both pins must be connected to the socket.

3.Place the tank heater switch in the “ON” position and observe the glowing red indicator near the right edge of the control board. The controller is apply- ing full power to the heater when the indicator is on all the time. The indicator will begin to flash as the temperature nears the set point. The set tem- perature is reached when the indicator flashes only very briefly. The water is hotter than the set tem- perature when the indicator remains off. This ini- tial setting will only be an approximation.

4.Take the temperature of the stream of water imme- diately below the faucet as it flows from the dis- penser with an accurate thermometer. Do not take the temperature of water collected in a container.

5A. TO INCREASE THE TEMPERATURE

Turn the potentiometer screw of the temperature range selected in step 2 in a clockwise direction with a small screwdriver. One full turn of the screw will result in an approximate 1°F change. Allow the temperature to stabilize as described in step 3 and repeat step 4. Continue until the desired water temperature is achieved.

5B. TO DECREASE THE TEMPERATURE

Turn the potentiometer screw of the temperature range selected in step 2 in a counterclockwise di- rection with a small screwdriver. One full turn of the screw will result in an approximate 1°F change. Draw a large quantity of water at the faucet, allow the temperature to stabilize as described in step 3 and repeat step 4. Continue until the desired water temperature is achieved.

NOTE - The entire adjustment span is approximately 25 complete revolutions. The potentiometer will cease to adjust when turned too far in either direction. It is not damaged, simply turn it back a few turns and try again.

85-115°

110-140°

135-165°

160-190°

185-208°

P1775

FIG. 5 TEMPERATURE RANGE SELECTION

15

10420 011599

 

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Contents Bunn Contents WarrantyIntroduction User Notices Electrical Requirements Plumbing RequirementsElectrical Hook-Up Draining the Dispenser CleaningWall Mounted Installation Initial SET-UPProblem Probable Cause Remedy TroubleshootingTroubleshooting Problem Probable Cause Dispenser is making unusual noises Water boils continuously Temperature controlLime build-up Deposits. Delime as requiredComponent Access ServiceLiquid Level Control Flow Charts LocationGeneral This system controls the liquid level and water tem Liquid Level Control Test Procedure Service Electronic ControlsProblem Boils Excessively Fills Cup Service Electronic Controls Wiring Connections 5A. to Increase the Temperature AdjustmentsService Limit Thermostat Test ProcedureLocation Limit thermostat is located on the tank lid Switch Service Safety Overflow SwitchSolenoid Valve Service Solenoid ValveService Tank Heater Location Tank heater is located in the tank lidCheck for continuity across the tank heater termi- nals Volts a C Wiring DiagramsVolts a C Wiring Diagrams Schematic Wiring Diagram H5E

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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