Bunn ULTRA-1 manual Service Auger Shaft ASSEMBLYcont, Remove and clean condenser air filter, Fig

Page 26

SERVICE (cont.)

AUGER SHAFT ASSEMBLY(cont.)

Open face of seal away from tool

Cooling Drum Seal

Seal Insertion Tool

P1760

FIG. 7 COOLING DRUM SEAL

14.Assemble motor/shaft assembly as shown in Fig. 8, then install assembly into cooling drum. Make sure the pins do not hit the sensor board and cool- ing drum seal is not dislodged as the shaft passes through.

Lube about 1 1/2” of shaft and in the groove with #29563.0000 “Krytox” Lubricant

Auger Shaft Assy

P1761

FIG. 8 MOTOR/SHAFT ASSEMBLY

15.Secure motor and capacitor to the cooling drum mounting bracket. Install rear motor cover.

16.Refer to Hopper Installation for hopper assembly and installation procedures. Be sure to use new hopper/drum seal and faucet seals

FIG 9

17.Remove and clean condenser air filter, Fig. 10.

18.Refer to the Programming Manual, “Menu Function Index”. Scroll to menu “PM Complete?” and answer “YES” to reset the reminder message “PM Due”.

ULTRA-2 shown

P3682

FIG 10

26

41084 102709

 

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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 noseMaterials required Auto-fill Cleaning Instructions With Brixing Pump InstalledSanitizing Procedure Preventive Maintenance Normal OperationInstructions Required Regular Maintenance Semi AnnualKit Contents DescriptionRequired Regular Maintenance Board TroubleshootingNo Power 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 certifiedBrix ratio Too much Troubleshooting Freezes, but not Thick enoughAdjust thickness Screen higher 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 OpenTemperature Sensor Open Troubleshooting Temperature Sensor ErrorTemperature Sensor Shorted Freezing is Disabled Troubleshooting Clean Filter MessagesFilter Needs Cleaning Monthly reminderService Component Access PanelsMotor Coil Resistance SERVICEcontAuger Motors 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 AssyModel T-2168 Service Compressor Embraco ULTRA-2Model T-2155 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 SupportFAN ULTRA-2 Front of the condenser Test ProceduresUse cable ties to secure wires away from fan blades 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 SensorDo not Turn on Augers Remove the cover and set aside for reassemblyTorque Sensor Circuit Board Transformer LoadCoolant Schematic ULTRA-1 Coolant Schematic ULTRA-2 TH1 & MOV4 Controls Auger Triac MAP for ULTRA-1ULTRA-1 Triacs TH6 & MOV6 Controls Right Auger Triac Maps for ULTRA-2Liquid AUTO-FILL Board ULTRA-2 Triacs Input and Output Chart ULTRA-1 41084 Input and Output Chart ULTRA-2 41084 41084
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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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