Bunn manual Input and Output Chart ULTRA-2

Page 66

Input and Output Chart (ULTRA-2)

J1 connector - black is TIC board ground and white is data wire.

J2 connector for touch pad/ membrane switch (see touch pad pin out test). J5 connector for liquid crystal display.

J12 connector for models with Autofill option.

J13 connector for Main harness

PIN

WIRE COLOR

FUNCTION

COMPONENT

VOLTAGE

NUMBER

AND GAUGE

 

 

 

1

Red/Black 18

Output

Right Auger Motor

120VAC

2

Brown/White 18

Output

Left Auger Motor

120VAC

3

Brown/Black 18

Output

Left Auger Motor

120VAC

4

Black 18

Supply

PC Board

120VAC

5

White 18

Neutral

PC Board

Neutral

6

Not used

Not used

Not used

Not used

7

Violet 18

Output/Switched

Lamp Relay

-12VDC

8

White/Blue 18

Supply

PC Board

12VAC

9

White/Black 22

Board Ground

Sensors

-5VDC

10

Yellow 22

Input/Signal

Hot Gas Temp

*

11

Blue 22

Output

Torque Sensors

5VDC

12

White/Black 22

Output

Torque Sensors

5VDC

13

White/Red 18

Output

Right Auger Motor

120VAC

14

Gray 18

Output

Condenser Fan

120VAC

15

Brown 20

Output

Left Solenoid

120VAC

16

Red 20

Output

Right Solenoid

120 VAC

17

Orange 18

Output

Compressor Relay

120VAC

18

Not used

Not used

Not used

Not used

19

Blue/Black 18

Output

Lamp Relay

+12VDC

20

White/Black 18

Supply

PC Board

12VAC

21

Tan 22

Input/Signal

Left Temp Sensor

*

22

Pink 22

Input/Signal

Right Temp

*

 

 

 

Sensor

 

23

White/Gray 22

Input/Signal

Left Torque

0 or 5VDC

 

 

 

Sensor

 

24

White/Green 22

Input/Signal

Right Torque

0 or 5VDC

 

 

 

Sensor

 

 

 

 

 

 

*With sensor disconnected you will read +5VDC, but when connected, voltage will vary according to temperature. To check sensor, see repair section.

66

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-2One side of the handle first, then Other and disconnect from Be taken when handling HopperFrom the rear of the drum Under spring tension. Spread SurfaceAuger nose Drums and press the sealsFirmly into place as shown Assemble the drip traySanitizing Procedure Materials requiredPreventive Maintenance Normal OperationInstructions Required Regular MaintenanceKit 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 Troubleshooting 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 Model Compressor SpecificationCSR Motor Wiring Diagram Capacitor RatingsImportant Safeguards Compressor Wiring DiagramTesting Compressor Windings/Insulation with a Meg- ger Disconnect all electrical power to the Bunn ULTRA-2 HPStart Capacitor External Thermal ProtectorPotential Start Relay Mounting Position 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 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 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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