Bunn manual Lamp Relay, ULTRA-2 ULTRA-1

Page 53

SERVICE (cont.)

LAMP RELAY

ULTRA-2 shown

FIG. 51 LAMP RELAY

Location:

The Lamp Relay is located under the upper deck of the chassis, on the right side.

Test Procedures: (Coil)

1.Disconnect the dispenser from the power source.

2.Connect a voltmeter, across BLU/BLK wire (+) and the VIO wire (-).

3.Connect the dispenser from the power source.

4.Turn on Power (I/O) Switch. Verify the dispenser is in the “DAY” mode.

The indication must be:

a)12 volts dc in the “DAY” mode,

b)0 volts dc in the “NIGHT” mode.

If voltage is present as described, the Control Board is operating properly. Replace Relay if it does not energize when voltage is present.

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

If harness has continuity, replace the Control Board.

Test Procedures: (Contacts)

1.Disconnect the dispenser from the power source.

2.Disconnect the WHI/VIO and WHI/YEL wires. Con- nect an ohmmeter across the two coil terminals where the wires were just removed.

3.Connect the dispenser from the power source..

4.Turn on Power (I/O) Switch. Verify the dispenser

is in the “DAY” mode. The indication must be:

a)continuity in the “DAY” mode,

b)open in the “NIGHT” mode.

If continuity is present as described, the Relay is op- erating properly.

If continuity is not present as described, replace the Relay.

Not Used (N/C)

4

2

 

 

3

1

 

 

FIG. 52 LAMP RELAY

 

ULTRA-2

 

ULTRA-1

1.

(-) 12vdc (VIO) from

1.

(-) 12vdc (VIO) from

 

Control Board J5-7

 

Control Board J10-12

2.

(+) 12vdc (BLU/BLK) to

2.

(+) 12vdc (BLU/BLK) to

 

Control Board J5-19

 

Control Board J10-14

3.

12vac (WHI/VIO) to

3.

12vac (WHI/RED) to

 

Lamp Connectors

 

Lamp Connector

4.

12vac (WHI/YEL) from

4.

12vac (RED) from

 

Circuit Breaker

 

Circuit Breaker

 

 

 

 

53

41084 102709

 

Page 52 Page 54
Image 53
Page 52 Page 54
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 padFrom the rear of the drum Under spring tension. Spread Other and disconnect from Be taken when handling HopperOne side of the handle first, then SurfaceFirmly into place as shown Drums and press the sealsAuger nose Assemble the drip trayMaterials required Sanitizing ProcedureNormal Operation Preventive MaintenanceKit Contents Required Regular MaintenanceInstructions DescriptionRequired Regular Maintenance Board TroubleshootingNo Power Set into DAY mode Troubleshooting Chills but Won’t freezeSet 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 Auger jumping Check fan Troubleshooting NoiseDrum alignment Check auger shaft bushings Auger won’t turnTorque Sensor Error TroubleshootingTorque Sensor Error Torque Sensor Shorted Torque Sensor OpenTemperature Sensor Open Troubleshooting Temperature Sensor ErrorTemperature Sensor Shorted Filter Needs Cleaning Troubleshooting Clean Filter MessagesFreezing is Disabled Monthly reminderComponent 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 ASSEMBLYcontRemove the wires from the circuit breaker Test ProceduresCircuit Breaker Location120V 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 CSR Motor Wiring Diagram Compressor SpecificationCompressor Model Capacitor RatingsCompressor Wiring Diagram Important SafeguardsDisconnect all electrical power to the Bunn ULTRA-2 HP Testing Compressor Windings/Insulation with a Meg- gerPotential Start Relay Mounting Position External Thermal ProtectorStart Capacitor Run CapacitiorCompressor Thermal Compressor Appliances ULTRA-1Relay Terminals Service Service Compressor Danfoss ULTRA-1B Compressor Capacitor Terminals Service Relay or Contactor on Early Models TIC board 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 AssemblyDisconnect the black and red leads from the LEDs Service LED LampsULTRA-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 Torque Sensor Circuit BoardLoad TransformerCoolant Schematic ULTRA-1 Coolant Schematic ULTRA-2 TH1 & MOV4 Controls Auger ULTRA-1 TriacsTH6 & MOV6 Controls Right Auger Liquid AUTO-FILL Board ULTRA-2 TriacsInput 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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