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Bunn manual COOLANT SCHEMATIC ULTRA-2

Models: ULTRA-2

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Page 61

COOLANT SCHEMATIC ULTRA-2

LEFT EVAPORATOR

THERMISTOR TEMPERATURE SENSOR

TO CONTROL BOARD

61

CAP TUBE

SOLENOID VALVE

ELECTRONICALLY

CONTROLLED

RIGHT EVAPORATOR

THERMISTOR TEMPERATURE SENSOR

TO CONTROL BOARD

COPPER TUBE

.312” O.D. X .032”

FILTER DRYER

COMPRESSOR

COOLANT SCHEMATIC ULTRA-2

CONDENSER

COPPER TUBE

.25” O.D. X .030”

41084 102709

COPPER TUBE

.25” O.D. X .030”

SUCTION

ACCUMULATOR

SERVICE VALVE

FOR COOLANT CHARGE INFORMATION SEE DECAL ON SIDE PANEL

Image 61

Bunn manual COOLANT SCHEMATIC ULTRA-2

Contents

ULTRA-1 ULTRA-2 SERVICE & REPAIR MANUALBUNN-O-MATICCORPORATION 41084.0000D 03/13 2009 Bunn-O-MaticCorporationBUNN-O-MATICCOMMERCIAL PRODUCT WARRANTY Preventive Maintenance CONTENTSService USER NOTICESBasic Maintenance Safety firstFault codes INTRODUCTIONDISPLAY TEMP & TORQUE TEMP & TORQUE SCREEN161h OPERATING CONTROLS ULTRA-1 OPERATING CONTROLS ULTRA-2 RECOMMENDED DAILY CLEANING ULTRA-2shown RECOMMENDED DAILY CLEANING Continued With Brixing Pump Installed Auto-fillCleaning InstructionsSanitizing Procedure Materials requiredNORMAL OPERATION PREVENTIVE MAINTENANCEPOSSIBLE CAUSES FOR FALSE READINGS Kit Contents REQUIRED REGULAR MAINTENANCE Semi AnnualINSTRUCTIONS DescriptionREQUIRED 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 Error TORQUE SENSOR SHORTED TROUBLESHOOTING cont TORQUE SENSOR ERRORTORQUE SENSOR OPEN TEMPERATURE SENSOR SHORTED TROUBLESHOOTING cont Temperature Sensor ErrorTEMPERATURE SENSOR OPEN Thermistor unplugged or break in wiring“FILTER NEEDS CLEANING” TROUBLESHOOTING cont Clean Filter Messages“FILTER NEEDS CLEANING!!!” COMPONENT ACCESS PANELS SERVICEFIG. 1 AUGER MOTORS SERVICEcont AUGER MOTORSMOTOR COIL RESISTANCE FIG. 2 AUGER MOTOR TERMINALSFIG. 4 AUGER MOTOR CAPACITOR TERMINALS SERVICE cont AUGER MOTOR CAPACITORSERVICE cont AUGER SHAFT ASSEMBLY SERVICE cont AUGER SHAFT ASSEMBLYcont SERVICE cont CIRCUIT BREAKER Location SERVICE cont120V COMPRESSORS 230V COMPRESSORS120V DISPENSERS SERVICE cont230V DISPENSERS FIG. 16 COMPRESSOR START RELAY TERMINALSRemoval and Replacement Compressor Assy SERVICE contCOMPRESSOR AMERICOLD ULTRA-2cont SERVICE cont COMPRESSOR EMBRACO ULTRA-2 Model T-2155 SERVICE cont COMPRESSOR EMBRACO ULTRA-2contFIG. 22 THERMAL OVERLOAD PROTECTOR TERMINALS Model T-2168SERVICE cont COMPRESSOR EMBRACO ULTRA-2cont CSR Motor Wiring Diagram Compressor SpecificationCompressor Model Capacitor RatingsCompressor Wiring Diagram Important SafeguardsSERVICE cont COMPRESSOR EMBRACO ULTRA-2 Check Compressor Windings for Ground Fault SERVICE cont COMPRESSOR EMBRACO ULTRA-2Potential Start Relay Mounting Position External Thermal ProtectorStart Capacitor Run Capacitior1.Compressor Start Relay SERVICE cont COMPRESSOR APPLIANCES ULTRA-12.Compressor Run Capacitor 3.Thermal Overload ProtectorFIG. 26 RELAY TERMINALS SERVICE contFIG. 28 COMPRESSOR CAPACITOR TERMINALS COMPRESSOR APPLIANCES ULTRA-1contCOMPRESSOR APPLIANCES ULTRA-1cont SERVICE contCompressor 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-1FIG. 59 SOLENOIDS 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-1LIQUID AUTO-FILLBOARD TRIAC MAPS for ULTRA-2ULTRA-2TRIACS Input and Output Chart ULTRA-1 120 VOLTS AC or 230 VOLTS AC 2WIRE SINGLE PHASE SCHEMATIC WIRING DIAGRAM ULTRA-1Configuration for CF VALVE Models 50/60 HZInput and Output Chart ULTRA-2 120 VOLTS AC SCHEMATIC WIRING DIAGRAM ULTRA-2AF230 VOLTS AC 4108441084