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Bunn ULTRA-2 manual Important Safeguards, Compressor Wiring Diagram

Models: ULTRA-2

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Important Safeguards:

SERVICE (cont.)

COMPRESSOR (EMBRACO) (ULTRA-2)

Important Safeguards:

•Trained service personnel with the knowledge of servicing and troubleshooting refrigeration systems or related components should be used.

•Always be alert of smell and sounds (arching, popping and humming) coming from the compressor. Discon- nect power or unplug immediately and get away.

•Always ensure main power is disconnected before any removal of a protective cover.

•Compressor oil and refrigerant being vented can create a hazardous condition of chemical burn, frostbite or fire.

•Never reset a breaker or replace a blown fuse without checking the compressor or related components for a short circuit or ground fault condition first.

•Always wear and use the appropriate safety gear when servicing a refrigeration system. Protective gloves, eyewear, shoes, clothes and tools.

•If compressor ground fault condition exists, keep power off, disconnect power leads, mark or tag compres- sor to indicate ground fault or defective compressor before replacing with a new compressor.

Compressor Wiring Diagram:

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Bunn manual Important Safeguards, Compressor Wiring Diagram, SERVICE cont COMPRESSOR EMBRACO ULTRA-2

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 codes161h TEMP & TORQUE SCREENDISPLAY TEMP & TORQUE 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 ProcedurePOSSIBLE CAUSES FOR FALSE READINGS PREVENTIVE MAINTENANCENORMAL OPERATION 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 NoiseTORQUE SENSOR OPEN TROUBLESHOOTING cont TORQUE SENSOR ERRORTorque Sensor Error TORQUE SENSOR SHORTED Thermistor unplugged or break in wiring TROUBLESHOOTING cont Temperature Sensor ErrorTEMPERATURE SENSOR SHORTED TEMPERATURE SENSOR OPEN“FILTER NEEDS CLEANING!!!” TROUBLESHOOTING cont Clean Filter Messages“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 DISPENSERSCOMPRESSOR AMERICOLD ULTRA-2cont SERVICE contRemoval and Replacement Compressor Assy 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 ModelSERVICE cont COMPRESSOR EMBRACO ULTRA-2 Important SafeguardsCompressor Wiring Diagram 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 TERMINALSCompressor Assy SERVICE contCOMPRESSOR APPLIANCES ULTRA-1cont 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-1SERVICE cont SOLENOIDSFIG. 59 SOLENOIDS 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-1ULTRA-2TRIACS TRIAC MAPS for ULTRA-2LIQUID AUTO-FILLBOARD 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