Bunn ULTRA-1 manual FAN ULTRA-2, Front of the condenser Test Procedures

Page 42
FIG. 39 FAN

SERVICE (cont.)

FAN - ULTRA-2

Location: The fan is located inside the dispenser chassis just

in front of the condenser.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Disconnect the gray and white wires from the main harness to the fan leads.

3.With a voltmeter, check the voltage across the gray and the white wires. Connect the dispenser to the power source. In the “ICE” or “CHILL” mode; The indication must be:

a)120 volts ac for 120 volt models.

b)230 volts ac for 230 volt models.

4.Disconnect the dispenser from the power source. If voltage is present as described, replace the fan.

If voltage is not present as described, refer to Wiring Diagram and check the dispenser wiring harness.

Removal and Replacement (Refer to Fig. 40)

NOTE: Leave the hopper in place. This keeps it in align- ment while the condenser shroud is removed.

1.Disconnect the fan leads from the wiring har- ness.

2.Remove the four #6 crimptite screws securing the condenser shroud and fan assy (1) to the condenser and the two #8-32 locking screws securing the condenser shroud and fan assy (1) to the chassis base.

3.Remove the condenser shroud and fan assy from the right side of the dispenser.

4.Remove the three #6 thread cutting screws securing the fan assy to condenser shroud (7). Set condenser shroud and screws aside for reassembly.

5.Remove the three #8-32 thread forming screws securing motor (5) to condenser fan shroud/mount

(6). Set shroud and screws aside for reassembly.

 

 

 

1

2

3

4

 

 

 

5

6

7

 

 

 

FIG. 40 FAN COMPONENTS

 

6.Remove speed nut (2) from the motor shaft.

7.Remove fan (3).

8.Remove silencer (4).

1. Condenser Shroud and Fan Assy

2.

Speed Nut

3.

Fan Blade

4.

Silencer

5.

Motor

6.

Shroud/Mount

7.

Condenser Shroud

9.Install silencer (4) on new motor assy.

10.Install fan (3) on new motor assy.

11.Install speed nut (2) on new motor assy.

12.Using three #8-32 thread forming screws secure new motor assy to shroud/mount (6).

13.Using three #6-32 thread cutting screws secure new motor and shroud/mount to the condenser shroud

(7).

14.Using two #8-32 locking screws secure condenser shroud and fan assy (1) to the chassis base.

15.Using four #8-32 crimptite screws secure the con- denser shroud and fan assy (1) to the condenser.

16.Refer to Fig. 41 and reconnect the leads on the new motor to the dispenser wiring harness.

17.Use cable ties to secure wires away from fan blades.

 

 

 

 

BLK to Main Harness WHI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK to Main Harness GRY

P1326

 

 

 

 

 

FIG. 41 FAN MOTOR TERMINALS

 

 

 

 

 

 

 

 

 

 

42

41084 102709

 

Page 41 Page 43
Image 42
Page 41 Page 43
Contents ULTRA-1 ULTRA-2 Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents User NoticesIntroduction Temp & Torque Screen Operating Controls ULTRA-1 Switch upper left corner of the control pad Operating Controls ULTRA-2From the rear of the drum Under spring tension. Spread Recommended Daily Cleaning ULTRA-2 shownOther and disconnect from Be taken when handling Hopper One side of the handle first, thenFirmly into place as shown Recommended Daily CleaningDrums and press the seals Auger noseAuto-fill Cleaning Instructions With Brixing Pump Installed Sanitizing ProcedureMaterials required Preventive Maintenance Normal OperationInstructions Required Regular Maintenance Semi AnnualKit Contents DescriptionRequired Regular Maintenance Troubleshooting No PowerBoard Set into ICE mode Is display showing Troubleshooting Chills but Won’t freezeSet into DAY mode Done Adjust CleanTroubleshooting No cooling At all Yes Dirty? Check fan Have a certifiedTroubleshooting Freezes, but not Thick enough Adjust thickness Screen higherBrix ratio Too much Drum alignment Check auger shaft bushings Troubleshooting NoiseAuger jumping Check fan Auger won’t turnTorque Sensor Error TroubleshootingTorque Sensor Error Torque Sensor Shorted Torque Sensor OpenTroubleshooting Temperature Sensor Error Temperature Sensor ShortedTemperature Sensor Open Freezing is Disabled Troubleshooting Clean Filter MessagesFilter Needs Cleaning Monthly reminderService Component Access PanelsSERVICEcont Auger MotorsMotor Coil Resistance Auger Motor Capacitor Auger Motor CapacitorsAuger Shaft Assembly Auger Shaft AssemblyService Auger Shaft ASSEMBLYcont Remove and clean condenser air filter, FigCircuit Breaker Test ProceduresRemove the wires from the circuit breaker Location120V Compressors 230V Compressors Compressor Start Relay Terminals Service Compressor Embraco ULTRA-2 Compressor AssyService Compressor Embraco ULTRA-2 Model T-2155Model T-2168 Secure compressor to the dispenser chassis using four Compressor Appliances ULTRA-1 Compressor ThermalRelay Terminals Service Service Compressor Danfoss ULTRA-1B Compressor Capacitor Terminals Service Relay or Contactor on Early Models Control Board Control Board ULTRA-2Cooling Drum Alignment Cooling Drum Shipping SupportFront of the condenser Test Procedures Use cable ties to secure wires away from fan bladesFAN ULTRA-2 FAN ULTRA-1 FANHOT GAS Temperature Sensor Alternate TestLamp Cord Wires Lamp Cord AssyLamp Cord Connector Lamp Cord ConnectorLamp HOLDER/SOCKET Assembly Lamp HOLDER/SOCKET AssemblyLamp Relay ULTRA-2 ULTRA-1Membrane Switch ULTRA-2 Ribbon CableMembrane Switch ULTRA-1 Refer to and connect the ribbon cable to the Control BoardSolenoids WHI from Main HarnessTemperature Sensor Temperature SensorRemove the cover and set aside for reassembly Torque Sensor Circuit BoardDo not Turn on Augers Transformer LoadCoolant Schematic ULTRA-1 Coolant Schematic ULTRA-2 Triac MAP for ULTRA-1 ULTRA-1 TriacsTH1 & MOV4 Controls Auger Triac Maps for ULTRA-2 Liquid AUTO-FILL Board ULTRA-2 TriacsTH6 & MOV6 Controls Right Auger Input and Output Chart ULTRA-1 41084 Input and Output Chart ULTRA-2 41084 41084
Related manuals
Manual 14 pages 46.12 Kb Manual 22 pages 47.89 Kb Manual 17 pages 28.06 Kb Manual 22 pages 35.42 Kb

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.
Top Page Image Contents