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

Page 12

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.

H 5

P4093

FIG. 12a LIMIT THERMOSTAT

H 10

P1993

FIG. 12b 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. Re- move the black wire at the limit thermostat coming 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. Connect the dispenser to the power source. The indication 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 or

c.) 230 volts ac for 230 volt models.

4. Disconnect the dispenser from the power source.

12

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

If voltage was not present as described, refer to the Wir- ing Diagrams and check the dispenser wiring harness.

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. 4 when reconnecting the wires.

BLK to Terminal Block

Reset

BLK to Tank Heater

 

 

P1776

FIG. 12c LIMIT THERMOSTAT WIRING

 

42311 071310

Image 12
Contents H10X/H5X H5E/DV PC H5 Element Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents Fault Codes ProblemFlashes Description of Failure RemedyProblem Probable Cause Remedy Water boils continuously Temperature control Noises Water supply Ready indicator will not lightLime build-up Deposits. Delime as requiredComponent Access H5E/DV-PC/X Component Access H10XService Liquid Level Control Flow ChartsElectronic Controls LocationService Electronic Controls Liquid Level Control Test ProcedureService H5X Thermostat Replace the electronic control board Service Limit Thermostat Location Limit thermostat is located on the tank lidService Safety Overflow Switch Safety Overflow WiringService Solenoid Valve Late Models If voltage was present as described, proceed to #5Service Solenoid Valve Early Models Service Tank Heater Location Tank heater is located in the tank lidCheck for continuity across the tank heater termi- nals Service Steam Sensor Thermistor Thermistor PositionService Dispense Valve PC Only Test ProceduresRemoval and Replacement Location Dispense Valve is located behind control panelEarly H5E, H5X, H10X Install jumper thru ver 120V AC 2 Wire + GND 120/208V AC 3 Wire + GND120/240V AC 3 Wire + GND Single Phase230V AC 2 Wire + GND Schematic Wiring Diagram H5E-PCSchematic Wiring Diagram H5-PCWire + GND Schematic Wiring Diagram H5E/H5X Schematic Wiring Diagram H5XA, H5EA CE RelaySchematic Wiring Diagram H5 Element Single Phase
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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.