Bunn ULTRA-1 manual Relay Terminals

Page 35

SERVICE (cont.)

COMPRESSOR (APPLIANCES) (ULTRA-1) (cont.)

Removal and Replacement:

Compressor Start Relay: Refer to FIG. 25

1.Remove the terminal cover (4)

2.Disconnect the wires from the compressor start relay.

3.Pull relay (1) off of the compressor pins and discard.

4.Push new relay onto the compressor pins.

5.Refer to Fig. 26 and reconnect the wires.

6.Reinstall terminal cover (4).

Compressor Thermal Overload Protector: Refer to FIG. 25

1.Remove terminal cover (4).

2.Disconnect the WHI/ORN wire of the harness from the thermal overload protector.

3.Disconnect the BLK wire from the Compressor’s upper terminal.

4.Remove overload protector (3) and start relay as an assembly.

5.Remove overload protector (3) and discard overload protector.

6.Install new overload protector (3) on to the relay (1).

7.Install relay (1) and overload protector (2) on the com- pressor terminal bracket.

8.Refer to Fig. 27 and reconnect the thermal overload protector wires.

9.Reinstall terminal cover (4).

Compressor Run Capacitor: Refer to FIG. 25

1.Remove terminal cover (4).

2.Disconnect the run capacitor leads.

3.Remove the #8-32 screw securing the run capacitor to the top of the dispenser chassis.

4.Remove run capacitor and discard.

5.Place new run capacitor on the top of the dispenser chassis and secure with #8-32 screw.

6.Refer to Fig. 28 and reconnect the wires.

WHI/ORN

GRN

WHI

BRN/WHI (120V)

BRN (230V)

BLU

FIG. 26 RELAY TERMINALS

Plugs into Relay

FIG. 27 THERMAL OVERLOAD PROTECTOR TERMINALS

BRN/WHI (120V) to Relay

BRN (230V) to Relay

BLU to Relay

FIG. 28 COMPRESSOR CAPACITOR TERMINALS

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41084 102709

 

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Contents Phone 217 529-6601 FAX 217 ULTRA-1 ULTRA-2BUNN-O-MATIC Commercial Product Warranty User Notices ContentsIntroduction Temp & Torque Screen Operating Controls ULTRA-1 Operating Controls ULTRA-2 Switch upper left corner of the control padOne side of the handle first, then Recommended Daily Cleaning ULTRA-2 shownOther and disconnect from Be taken when handling Hopper From the rear of the drum Under spring tension. SpreadAuger nose Recommended Daily CleaningDrums and press the seals Firmly into place as shownMaterials required Auto-fill Cleaning Instructions With Brixing Pump InstalledSanitizing Procedure Normal Operation Preventive MaintenanceDescription Required Regular Maintenance Semi AnnualKit Contents InstructionsRequired Regular Maintenance Board TroubleshootingNo Power Done Adjust Clean Troubleshooting Chills but Won’t freezeSet into DAY mode Set into ICE mode Is display showingYes Dirty? Check fan Have a certified Troubleshooting No cooling At allBrix ratio Too much Troubleshooting Freezes, but not Thick enoughAdjust thickness Screen higher Auger won’t turn Troubleshooting NoiseAuger jumping Check fan Drum alignment Check auger shaft bushingsTorque Sensor Shorted Torque Sensor Open TroubleshootingTorque Sensor Error Torque Sensor ErrorTemperature Sensor Open Troubleshooting Temperature Sensor ErrorTemperature Sensor Shorted Monthly reminder Troubleshooting Clean Filter MessagesFilter Needs Cleaning Freezing is DisabledComponent Access Panels ServiceMotor Coil Resistance SERVICEcontAuger Motors Auger Motor Capacitors Auger Motor CapacitorAuger Shaft Assembly Auger Shaft AssemblyRemove and clean condenser air filter, Fig Service Auger Shaft ASSEMBLYcontLocation Test ProceduresRemove the wires from the circuit breaker Circuit Breaker120V Compressors 230V Compressors Compressor Start Relay Terminals Service Compressor Assy Compressor Embraco ULTRA-2Model T-2168 Service Compressor Embraco ULTRA-2Model T-2155 Secure compressor to the dispenser chassis using four Compressor Thermal Compressor Appliances ULTRA-1Relay Terminals Service Service Compressor Danfoss ULTRA-1B Compressor Capacitor Terminals Service Relay or Contactor on Early Models Control Board ULTRA-2 Control BoardCooling Drum Shipping Support Cooling Drum AlignmentFAN ULTRA-2 Front of the condenser Test ProceduresUse cable ties to secure wires away from fan blades FAN FAN ULTRA-1Alternate Test HOT GAS Temperature SensorLamp Cord Assy Lamp Cord WiresLamp Cord Connector Lamp Cord ConnectorLamp HOLDER/SOCKET Assembly Lamp HOLDER/SOCKET AssemblyULTRA-2 ULTRA-1 Lamp RelayRibbon Cable Membrane Switch ULTRA-2Refer to and connect the ribbon cable to the Control Board Membrane Switch ULTRA-1WHI from Main Harness SolenoidsTemperature Sensor Temperature SensorDo not Turn on Augers Remove the cover and set aside for reassemblyTorque Sensor Circuit Board Load TransformerCoolant 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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