SERVICE (cont.)

COMPRESSOR (EMBRACO) (ULTRA-2)

FIG. 19 COMPRESSOR ASSY

Location:

The compressor assy is located inside the front of the dispenser chassis.

Model T-2155

6

 

 

5

 

4

 

3

 

1

 

2

Model T-2168

5

4

 

3

 

1

 

2

 

6

FIG. 20 COMPRESSOR ELECTRICAL COMPONENTS

1.Compressor Start Relay

2.Thermal Overload Protector

3.Overload Protector Retainer

4.Compressor Terminal Cover

5.Terminal Cover Retainer

6.Compressor Run Capacitor

Test Procedures:

WARNING: The compressor start capacitor must be properly discharged before proceeding. This is most commonly done on low voltage capacitors by shorting across the terminals with a screwdriver.

Compressor Start Relay: Refer to FIG. 20

1.Disconnect the dispenser from the power source.

2.Remove compressor terminal cover retainer (5) and compressor terminal cover (4).

3.Connect a voltmeter across the white wire and the white/ orange wire. Connect the dispenser to the power source. Verify the dispenser is in “ICE” or “CHILL” mode.

The indication must be:

(a)120 volts ac for two wire 120 volt models or

(b)230 volts ac for two wire 230 volt models.

5.Disconnect the dispenser from the power source.

If voltage is present as described, proceed to the following test procedures.

If voltage is not present as described, refer to the Relay and check the relay.

6.Disconnect the two black wires from the compressor start relay.

7.Remove relay from the compressor.

8.Check for continuity across the upper left terminal and the right pin socket on the rear of the relay.

If continuity is present as described, the compressor start relay is operating properly.

If continuity is not present as described, replace relay.

Compressor:

1.With the compressor start relay (1) removed, disconnect the black wire from the compressor.

2.Check for continuity across the terminal on the compres- sor and the left pin on the compressor.

If continuity is present as described, the electrical part of the compressor is operating properly.

If continuity is not present as described, replace the com- pressor.

Thermal Overload Protector:

1.Check for continuity across the terminals on the thermal overload protector (2).

If continuity is present as described, the thermal overload protector is operating properly.

If continuity is not present as described, replace the thermal overload protector.

31

41084 102709

 

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Bunn ULTRA-1 manual Compressor Embraco ULTRA-2, Compressor Assy
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ULTRA-1 specifications

The Bunn ULTRA-1 is a state-of-the-art coffee brewing system designed for commercial use, offering an unmatched combination of speed, efficiency, and flavor extraction. This single-serve coffee brewer is tailored for businesses that require high-quality coffee brews in a fast-paced environment, such as cafes, restaurants, and office kitchens.

One of the standout features of the Bunn ULTRA-1 is its ability to brew up to 14 different cup sizes, accommodating various customer preferences. This flexibility allows operators to serve everything from small espresso shots to larger coffee servings, making it a versatile addition to any beverage-serving establishment. At the heart of this brewing system is Bunn's patented brewing technology, which ensures precise water temperature and ideal brew time, optimizing the extraction process for a full-bodied flavor profile.

The ULTRA-1 is equipped with a large, easy-to-read LCD screen that provides real-time feedback, allowing users to monitor brewing progress, select cup sizes, and customize brewing parameters. This intuitive interface simplifies operation, reducing the learning curve for new staff members and enhancing overall efficiency during peak hours.

Another innovative aspect of the Bunn ULTRA-1 is its advanced thermal carafe system, which keeps brewed coffee at the optimal serving temperature without the need for a traditional warming plate. This technology helps preserve the coffee's rich flavor and aroma by preventing it from becoming bitter or stale due to prolonged exposure to heat.

The ULTRA-1 emphasizes ease of maintenance with its removable brew chamber and drip tray, allowing for quick cleaning and routine upkeep. Additionally, the brewer features a self-diagnostic system, alerting operators to any potential issues, further minimizing downtime.

From its sleek design to its robust construction, the Bunn ULTRA-1 combines aesthetics and durability, making it a reliable choice for any coffee-centric business. The compact design ensures it can fit on counters without taking up excessive space, while its stainless steel components provide longevity and resistance to wear and tear.

In conclusion, the Bunn ULTRA-1 stands out in the crowded market of commercial coffee brewers due to its advanced technology, versatility, and user-friendly features. It is designed to meet the demands of modern coffee service while ensuring that every cup brewed meets the highest standards for taste and quality.
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