SERVICE (cont.)

7. Voltage must not be present when the thermostat

 

CONTROL THERMOSTAT

is turned to the "OFF" position.

FIG. 2 CONTROL THERMOSTAT

P1262

 

Location:

The control thermostat is located inside the trunk on the upper left side of the component bracket.

Test Procedures:

1.Disconnect the brewer from the power source.

2.With a voltmeter, check the voltage across the blue wire on the control thermostat and red insert on terminal block. Connect the brewer to the power source. The indication must be 220 to 240 volts.

3.Disconnect the brewer from the power source.

If voltage is present as described, proceed to #4.

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

4.Gently remove the capillary bulb and grommet from the tank.

5.With a voltmeter, check the voltage across the black wire of the control thermostat and the red insert on the terminal block, when the control thermostat is turned "ON" (Fully clockwise). Con- nect the brewer to the power source. The indica- tion must be 220 to 240 volts ac.

6.Disconnect the brewer from the power source.

If voltage is present as described, reinstall the capillary tube into the tank to the line 4.5" above the bulb, the control thermostat is operating properly.

If voltage is not present as described, replace the thermostat.

Removal and Replacement:

1.Remove wires from control thermostat.

2.Remove the thermostat capillary bulb by firmly pulling up on the capillary at the tank lid. This will disengage the grommet from the tank lid.

3.Remove the one #8-32 screw securing the control thermostat to the component bracket inside the trunk.

4.Slide the grommet to the line 4.5" above the bulb on the new capillary tube.

5.Insert the capillary bulb through the hole in the tank lid and press the grommet firmly and evenly so that the groove in the grommet fits into the tank lid.

6.Carefully bend the capillary tube so that the tube and bulb inside the tank are in the vertical position.

NOTE - The capillary tube must be clear of any electri- cal termination and not kinked.

7.Using one #8-32 screw secure the control thermo- stat to the component bracket inside the trunk.

8.Refer to Fig. 3 when reconnecting the wires.

9.Adjust the control thermostat as required.

BLK or RED to Thermal Cut-Off

BLU to Terminal Block/Tank

Heater Switch

P1263

FIG. 3 CONTROL THERMOSTAT TERMINALS

Page 10

10860.1 091300

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Bunn VP17A service manual Control Thermostat, Location, Test Procedures Disconnect the brewer from the power source
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VP17A specifications

The Bunn VP17A is a commercial-grade coffee brewer designed to meet the demands of high-volume environments, such as cafes, restaurants, and convenience stores. Renowned for its reliability and performance, the VP17A is engineered to deliver consistent quality coffee with every brew, ensuring that customers enjoy a fresh cup each time.

One of the standout features of the Bunn VP17A is its dual voltage capability, accommodating both 120V and 240V electrical systems. This flexibility allows the brewer to be used in various settings without the need for extensive electrical modifications. Its stainless-steel construction not only enhances durability but also provides an elegant appearance that fits seamlessly into any commercial kitchen environment.

The machine is equipped with a large-capacity water tank that can brew multiple batches of coffee back-to-back. With a brewing capacity of up to 3.8 gallons per hour, the VP17A is ideal for busy establishments where speed is crucial. Its unique spray head design ensures uniform extraction of coffee grounds, resulting in a rich flavor profile and optimal strength in each brew.

Another significant characteristic of the Bunn VP17A is its simplicity of operation. The intuitive control panel allows baristas to easily select brew sizes and manage water flow, making it accessible even for beginners. The brewer features an automatic fill system, which maintains the proper water level for efficient brewing without requiring manual input.

For added convenience, the VP17A also includes a built-in pourover feature, enabling users to brew coffee even in the absence of a direct water line connection. This versatility makes the machine an excellent choice for temporary setups or events where traditional plumbing may not be available.

In terms of technology, the VP17A employs an advanced thermal coffee brewer design that optimizes extraction temperatures, resulting in a balanced flavor profile. The machine is also designed for easy cleaning and maintenance, which is essential for ensuring longevity and sustained performance in a commercial setting.

Ultimately, the Bunn VP17A stands out in the coffee brewing market for its powerful performance, durable construction, and user-friendly design. Its combination of speed, capacity, and innovative features makes it an ideal choice for businesses aiming to serve high-quality coffee quickly and efficiently. With the Bunn VP17A, operators can achieve a consistently excellent brew that keeps customers coming back for more.
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