SERVICE (cont.)

FAN - ULTRA-1

FIG. 42 FAN

Location:

The fan assembly is located inside the rear of the dispenser chassis behind the condenser.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Connect a voltmeter across pins 1 and 2 of either fan connector of the main wiring harness.

3.Connect the dispenser to the power source.

4.Turn on Power (I/O) Switch. Verify the dispenser is in the “DAY” mode.

The indication must be:

a)12 volts dc in the “DAY” mode,

b)0 volts dc in the “NIGHT” mode.

If voltage is present as described, proceed to step 5. If voltage is not present as described, refer to the Wiring Diagrams and check the main wiring harness.

5.Check for continuity with an ohmmeter across the red and black wires of the fan.

If continuity is present as described, the fan is operat- ing properly.

If continuity is not present as described, replace the fan.

6. Repeat test for other fan.

Removal and Replacement:

1.Disconnect the dispenser from the power source.

2.Remove the air filter from the back of the dis- penser.

3.Remove the four #8-32 hex screws attaching the fan and shroud assy to the condenser frame.

4.Disconnect the wiring harness from the fan being replaced.

5.Remove the four screws attaching the fan to the fan shroud and replace the fan.

6.Install the new fan such that the direction of air flow matches that of the remaining fan. (arrow on fan pointing toward condenser)

7.Reconnect the fan to the main wiring harness.

8.Install the fan and shroud assembly to the condenser frame.

9.Replace the air filter and reconnect the dispenser to power.

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Bunn manual FAN ULTRA-1, Fan

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.