Bunn DV, H5X, H5E service manual Service Steam Sensor Thermistor, Thermistor Position

Models: DV H5E H5X

1 25
Download 25 pages 51 Kb
Page 17
Image 17

SERVICE (cont.)

Steam Sensor (Thermistor)

Location:

The thermistor is located on the end of the overflow tube above the overflow cup.

To test the thermistor, access will also be needed to the electronic control board.

H 5X

P1993

FIG. 17a LOCATION

H 10X

P1993

FIG. 17b LOCATION

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Disconnect the thermistor from J5 on control board.

3.Check the resistance across thermistor with a ohmmeter. The resistance range is approximately 9K @ room temperature to approximately 2K @ 200°F.

4.Disconnect the dispenser from the power source.

If resistance was present as described, the thermistor is working.

If resistance was not present as described, replace the control board.

17

Removal and Replacement:

1.Disconnect the dispenser from the power source.

2.Disconnect the thermistor from J5 on control board.

3.Loosen the set screw and the two screws securing the two half blocks together. Remove thermistor assembly from overflow tube.

4.Install new thermistor on tube and slide down until it contacts the flared end. NOTE: It’s critical that the thermistor be centered directly under the tube opening.

5.Snug the set screw so the block assembly does not move aroung easily.

6.Connect the thermistor to J5 on control board.

NOTE: DO NOT TEST OPERATION WITH PANELS REMOVED, AS AIR MOVEMENT CAN HINDER PROPER READINGS ON THERMISTOR.

Mounting screws

Set screw

DO NOT BEND

THERMISTOR

UP/DOWN

FIG. 17c STEAM SENSOR EXPLODED

Thermistor centered

under tube opening

FIG. 17d THERMISTOR POSITION

42311 080510

Page 17
Image 17
Bunn DV, H5X, H5E service manual Service Steam Sensor Thermistor, Thermistor Position

DV, H5E, H5X specifications

The Bunn H5E and H5X coffee machines represent a leap forward in brewing technology, specifically tailored for commercial use. Both models focus on delivering high-quality coffee while maximizing efficiency, making them ideal choices for busy cafés and restaurants.

The Bunn H5E features a unique 5-liter dual tank system, which allows for faster brewing times and reduces wait periods for customers. This dual tank setup facilitates the simultaneous preparation of multiple coffee types, catering to a diverse clientele. The H5X, on the other hand, is equipped with advanced electronic controls that permit precise temperature adjustments to ensure that the ideal brewing conditions are maintained, enhancing flavor extraction.

One of the standout features of both models is the patented BrewOptimized Technology. This technology helps maintain optimal water temperature and consistent flow rates throughout the brewing process, ensuring that each cup of coffee meets the high standards expected in commercial settings. Additionally, the units utilize a patented stainless steel brew basket that enhances durability and simplifies cleaning, making maintenance less of a chore for busy staff.

Another significant characteristic of the H5E and H5X is their programmable settings, which allow operators to customize brewing parameters according to their specific preferences or customer needs. This flexibility means that establishments can experiment with various coffee profiles, ensuring that they serve only the best products to their patrons.

Safety is also a priority in the design of these machines. The H5E and H5X come equipped with built-in safety features such as automatic shut-off and thermal overload protection, which help to prevent accidents and enhance longevity. Moreover, their compact design allows for easy installation in a variety of settings, whether it's a small coffee stand or a large restaurant operation.

Both the Bunn H5E and H5X models are energy-efficient, with features that minimize power consumption without compromising performance. This focus on sustainability not only helps reduce overhead costs but also appeals to environmentally conscious consumers.

In summary, the Bunn H5E and H5X coffee machines are engineered for high performance, reliability, and versatility. With features designed to provide quick, quality coffee while ensuring ease of operation and maintenance, these machines are ideal for any establishment that takes its coffee seriously. Whether you’re brewing for a crowd or crafting specialty drinks, the H5E and H5X stand ready to deliver excellent results every time.