Bunn manual Service Compressor Embraco ULTRA-2, Model T-2155, Model T-2168

Page 32

SERVICE (cont.)

COMPRESSOR (EMBRACO) (ULTRA-2) (cont.)

Removal and Replacement:

Compressor Start Relay: Refer to FIG. 20

1. Disconnect the wires from the compressor start re- lay.

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

4.Push new relay onto the compressor pins.

5.Refer to Fig. 21 and reconnect the wires.

6.Reinstall terminal cover (4) and cover retainer (5).

White from Main Harness

6.Install retainer (3) on new overload protector (2).

7.Install retainer (3) and overload protector (2) on the compressor terminal bracket.

8.Refer to Fig. 22 and reconnect the thermal overload protector wires.

9.Reinstall terminal cover (4) and cover retainer (5).

WHI/ORN from

Main Harness

BLK to Compressor

Plug directly to two lower terminals on Compressor

Model T-2155

FIG. 22 THERMAL OVERLOAD

PROTECTOR TERMINALS

Compressor Run Capacitor: Refer to FIG. 20

P1339

Black from Run Capacitor White from Main Harness

Black from Run Capacitor

White from Main Harness

1.Disconnect the run capacitor leads.

2.Remove the nut securing the run capacitor to the capaci- tor mounting bracket.

3.Remove run capacitor and discard.

4.Place new run capacitor on capacitor mounting bracket and secure nut.

5.Refer to Fig. 23 and reconnect the wires.

Model T-2168

P1338

FIG. 21 COMPRESSOR START RELAY

TERMINALS

Compressor Thermal Overload Protector: Refer to FIG. 20

1.Remove terminal cover retainer (5) and 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 retainer (3) and thermal overload protector (2) as an assembly.

5.Remove retainer (3) from overload protector (2) and discard overload protector.

BLK to Start Relay T1 BLK to Start Relay T3

P1816

FIG. 23 COMPRESSOR RUN CAPACITOR

TERMINALS

32

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-2Other and disconnect from Be taken when handling Hopper From the rear of the drum Under spring tension. SpreadOne side of the handle first, then SurfaceDrums and press the seals Firmly into place as shownAuger nose Assemble the drip traySanitizing Procedure Materials requiredPreventive Maintenance Normal OperationRequired Regular Maintenance Kit ContentsInstructions DescriptionRequired Regular Maintenance Board TroubleshootingNo Power Troubleshooting Chills but Won’t freeze Set into DAY modeSet into ICE mode Is display showing Done Adjust CleanTroubleshooting No cooling At all Brix ratio Too much Troubleshooting Freezes, but not Thick enoughAdjust thickness Screen higher Troubleshooting Noise Auger jumping Check fanDrum alignment Check auger shaft bushings Auger won’t turnTroubleshooting Torque Sensor ErrorTorque Sensor Error Torque Sensor Shorted Torque Sensor OpenTemperature Sensor Open Troubleshooting Temperature Sensor ErrorTemperature Sensor Shorted Troubleshooting Clean Filter Messages Filter Needs CleaningFreezing is Disabled 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, FigTest Procedures Remove the wires from the circuit breakerCircuit 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 Specification CSR Motor Wiring DiagramCompressor Model Capacitor RatingsImportant Safeguards Compressor Wiring DiagramTesting Compressor Windings/Insulation with a Meg- ger Disconnect all electrical power to the Bunn ULTRA-2 HPExternal Thermal Protector Potential Start Relay Mounting PositionStart Capacitor Run CapacitiorCompressor Appliances ULTRA-1 Compressor ThermalRelay Terminals Service Service Compressor Danfoss ULTRA-1B Compressor Capacitor Terminals Service Relay or Contactor on Early Models Control Board TIC boardCooling 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 AssemblyService LED Lamps Disconnect the black and red leads from the LEDsLamp 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 SensorTorque Sensor Circuit Board Do not Turn on AugersTransformer LoadCoolant Schematic ULTRA-1 Coolant Schematic ULTRA-2 ULTRA-1 Triacs TH1 & MOV4 Controls AugerLiquid AUTO-FILL Board ULTRA-2 Triacs TH6 & MOV6 Controls Right AugerInput and Output Chart ULTRA-1 Schematic Wiring Diagram ULTRA-1 Input and Output Chart ULTRA-2 Schematic Wiring Diagram ULTRA-2 AF 41084
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ULTRA-2 specifications

The Bunn ULTRA-2 is an exceptional frozen beverage dispenser that caters to both commercial and home use, making it a popular choice in various establishments such as cafes, restaurants, and convenience stores. Renowned for its reliability and efficiency, the ULTRA-2 serves a wide range of frozen beverages, including slushes, smoothies, and frozen cocktails, providing an irresistible treat for customers.

One of the standout features of the Bunn ULTRA-2 is its high-capacity design. With a dual hopper system, this machine allows operators to serve two different flavors simultaneously. Each hopper can hold up to 3.2 gallons of product, allowing for continuous service without the need for frequent refills. This is particularly advantageous during peak hours when demand is high.

The ULTRA-2 is equipped with Bunn's advanced refrigeration technology, which ensures rapid freezing and consistent product quality. The machine uses a patented freezing mechanism that maintains optimal product texture and temperature, resulting in a smooth, uniform consistency that keeps customers coming back for more. Additionally, the ULTRA-2's adjustable temperature control allows operators to customize the consistency of the beverages to their liking.

User-friendliness is another hallmark of the Bunn ULTRA-2. The machine features intuitive controls that simplify operation, making it easy for staff to learn and use efficiently. A built-in safety feature prevents the machine from operating when the hoppers are too low, minimizing waste and ensuring product quality.

Durability and ease of maintenance are also prominent characteristics of the ULTRA-2. Constructed from high-quality stainless steel, the machine offers enhanced longevity and is resistant to rust and corrosion. The removable hoppers and door assemblies facilitate quick cleaning and maintenance, allowing businesses to keep the machine in top working condition with minimal effort.

In summary, the Bunn ULTRA-2 stands out in the crowded market of frozen beverage dispensers through its dual hopper functionality, advanced refrigeration technology, user-friendly design, and robust construction. Whether for a busy café or a family gathering, the ULTRA-2 provides a reliable solution for delivering delicious frozen beverages that satisfy a variety of tastes and preferences.
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