Manuals / Bunn / Kitchen Appliance / Beverage Dispenser

Bunn ULTRA-2 manual Contents, User Notices, Site preparation, Preventive Maintenance, Service

Models: ULTRA-2

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CONTENTS
Warranty	2
User Notices	3
Site Preparation	3
Introduction	4
Operating Controls	6
Preventive Maintenance
Recommended Cleaning	8
Auto-fill Cleaning Instructions	10
Preventive Maintenance Schedule	11
Troubleshooting	14
Service
Access Panels	22
Auger Motors	23
Auger Motor Capacitors	24
Auger Shaft Assembly	25
Circuit Breaker	27
Compressor	28,31,34,37
Relay (or Contactor on Early Models)	39
Control Board	40
Cooling Drum Alignment	41
Fan	42,43
Hot Gas Sensor	44
Lamp Cord Assembly	45
Lamp Cord Connector	46
Lamp Holder/Socket Assembly	47
Lamp Relay	48
Membrane Switch	49,50
Solenoids	51
Temperature Sensor Assembly	52
Torque Sensor Circuit Board	53
Transformer	54
Coolant Schematics	55
Electrical Schematics	57

USER NOTICES

All notices on this equipment are written for your protection. All notices are to be kept in good condition. Replace any unreadable or damaged labels.

Site preparation

The dispenser must have at least four inches of space behind it. This space is needed for airflow, air filter removal, and cleaning. Minimal clearance is required between the dispenser sides and the wall or another appli- ance. The dispenser performs better if not placed near any heating appliance. Leave some space so the dispenser can be moved for cleaning.

3	41084 102709

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Bunn ULTRA-2 manual Contents, User Notices, Site preparation, Preventive Maintenance, Service

Contents

41084.0000D 03/13 2009 Bunn-O-MaticCorporation SERVICE & REPAIR MANUALULTRA-1 ULTRA-2 BUNN-O-MATICCORPORATIONBUNN-O-MATICCOMMERCIAL PRODUCT WARRANTY USER NOTICES CONTENTSPreventive Maintenance ServiceINTRODUCTION Safety firstBasic Maintenance Fault codesTEMP & TORQUE SCREEN DISPLAY TEMP & TORQUE161h OPERATING CONTROLS ULTRA-1 OPERATING CONTROLS ULTRA-2 RECOMMENDED DAILY CLEANING ULTRA-2shown RECOMMENDED DAILY CLEANING Continued Materials required Auto-fillCleaning InstructionsWith Brixing Pump Installed Sanitizing ProcedurePREVENTIVE MAINTENANCE NORMAL OPERATIONPOSSIBLE CAUSES FOR FALSE READINGS Description REQUIRED REGULAR MAINTENANCE Semi AnnualKit Contents INSTRUCTIONSREQUIRED REGULAR MAINTENANCE Continued No Power TROUBLESHOOTINGTROUBLESHOOTING cont Chills but won’t freeze TROUBLESHOOTING cont No cooling at all thick enough TROUBLESHOOTING cont Freezes, but notAuger won’t turn TROUBLESHOOTING cont NoiseTROUBLESHOOTING cont TORQUE SENSOR ERROR Torque Sensor Error TORQUE SENSOR SHORTEDTORQUE SENSOR OPEN Thermistor unplugged or break in wiring TROUBLESHOOTING cont Temperature Sensor ErrorTEMPERATURE SENSOR SHORTED TEMPERATURE SENSOR OPENTROUBLESHOOTING cont Clean Filter Messages “FILTER NEEDS CLEANING”“FILTER NEEDS CLEANING!!!” COMPONENT ACCESS PANELS SERVICEFIG. 2 AUGER MOTOR TERMINALS SERVICEcont AUGER MOTORSFIG. 1 AUGER MOTORS MOTOR COIL RESISTANCEFIG. 4 AUGER MOTOR CAPACITOR TERMINALS SERVICE cont AUGER MOTOR CAPACITORSERVICE cont AUGER SHAFT ASSEMBLY SERVICE cont AUGER SHAFT ASSEMBLYcont SERVICE cont CIRCUIT BREAKER 230V COMPRESSORS SERVICE contLocation 120V COMPRESSORSFIG. 16 COMPRESSOR START RELAY TERMINALS SERVICE cont120V DISPENSERS 230V DISPENSERSSERVICE cont Removal and Replacement Compressor AssyCOMPRESSOR AMERICOLD ULTRA-2cont SERVICE cont COMPRESSOR EMBRACO ULTRA-2 Model T-2168 SERVICE cont COMPRESSOR EMBRACO ULTRA-2contModel T-2155 FIG. 22 THERMAL OVERLOAD PROTECTOR TERMINALSSERVICE cont COMPRESSOR EMBRACO ULTRA-2cont Capacitor Ratings Compressor SpecificationCSR Motor Wiring Diagram Compressor ModelImportant Safeguards Compressor Wiring DiagramSERVICE cont COMPRESSOR EMBRACO ULTRA-2 Check Compressor Windings for Ground Fault SERVICE cont COMPRESSOR EMBRACO ULTRA-2Run Capacitior External Thermal ProtectorPotential Start Relay Mounting Position Start Capacitor3.Thermal Overload Protector SERVICE cont COMPRESSOR APPLIANCES ULTRA-11.Compressor Start Relay 2.Compressor Run CapacitorCOMPRESSOR APPLIANCES ULTRA-1cont SERVICE contFIG. 26 RELAY TERMINALS FIG. 28 COMPRESSOR CAPACITOR TERMINALSSERVICE cont COMPRESSOR APPLIANCES ULTRA-1contCompressor Assy SERVICE cont COMPRESSOR DANFOSS ULTRA-1Bcont FIG. 30 RELAY TERMINALS SERVICE cont COMPRESSOR DANFOSS ULTRA-1BcontSERVICE cont RELAY or CONTACTOR on Early Models TIC board SERVICE cont CONTROL BOARDSERVICE cont COOLING DRUM ALIGNMENT SERVICE cont FAN - ULTRA-2 SERVICE cont FAN - ULTRA-1SERVICE cont HOT GAS TEMPERATURE SENSOR FIG. 45 LAMP CORD ASSY SERVICE cont LAMP CORD ASSYSERVICE cont LAMP CORD CONNECTOR SERVICE cont LAMP HOLDER/SOCKET ASSEMBLY SERVICE cont LED Lamps SERVICE cont LAMP RELAY SERVICE cont MEMBRANE SWITCH ULTRA-2SERVICE cont MEMBRANE SWITCH ULTRA-1SOLENOIDS FIG. 59 SOLENOIDSSERVICE cont SERVICE cont TEMPERATURE SENSOR DO NOT TURN ON AUGERS SERVICE cont TORQUE SENSOR CIRCUIT BOARDSERVICE cont TRANSFORMERCOOLANT SCHEMATIC ULTRA-1 COOLANT SCHEMATIC ULTRA-2 ULTRA-1TRIACS TRIAC MAP for ULTRA-1TRIAC MAPS for ULTRA-2 LIQUID AUTO-FILLBOARDULTRA-2TRIACS Input and Output Chart ULTRA-1 50/60 HZ SCHEMATIC WIRING DIAGRAM ULTRA-1120 VOLTS AC or 230 VOLTS AC 2WIRE SINGLE PHASE Configuration for CF VALVE ModelsInput and Output Chart ULTRA-2 41084 SCHEMATIC WIRING DIAGRAM ULTRA-2AF120 VOLTS AC 230 VOLTS AC41084