Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki KM-630MRH, KM-630MWH service manual KM-630MAH

Models: KM-630MAH KM-630MRH KM-630MWH

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Specs Wiring Diagrams Maintenance Problem Possible Cause Remedy Cleaning Procedure Controls and Adjustments Setting Time Refrigerant Recovery Proximity Switch

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III. TECHNICAL INFORMATION

1.WATER CIRCUIT AND REFRIGERANT CIRCUIT

[a]KM-630MAH

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Hoshizaki KM-630MRH, KM-630MWH service manual KM-630MAH

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Contents

KM-630MAH KM-630MWH KM-630MRH Hoshizaki AMERICA, INC Contents Maintenance Specifications KM-630MAH Water TEMP. F 2a. KM-630MWH Serial #L00001D M20270B 2b. KM-630MWH Serial #M20301E KM-630MRH Condenser Unit URC-6F Specifications II. General Information Construction KM-630MAH KM-630MWH KM-630MRH Features of Control Products E Controller Board Controller BoardSOLID-STATE Control Controller BoardPage Beep every 3 sec. = High Evaporator Temperature 127 F Minute Fill CycleHarvest Cycle Freeze Cycle Control Products HOS-001A Board Sequence 1st Cycle Important Water Valve opening is limited to 6 minutes 2nd Cycle and after with pump drain 2nd Cycle and after with no pump drain Controls and Adjustments For Models with ThermostatPage Setting Time Models with Thermostat Models with Mechanical BIN Control Checking the Controller Board Mechanical BIN Control Proximity SwitchExplanation of Operation Troubleshooting Mechanical BIN Control only KM-630MAH KM-630MWH KM-630MRH Wiring Diagrams Page B1 KM-630MRH with auxiliary codes L-0, M-0, M-1 B2 KM-630MRH with auxiliary codes M-2 and after Timing Chart Page Performance Data 157 B1 KM-630MWH Serial #L00001D M20270B Pressure Drop of Cooling Water Line B2 KM-630MWH Serial #M20301E 603 IV. Service Diagnosis 1. no ICE Production Problem Possible Cause Remedy Controller Board Problem Possible Cause Remedy Evaporator is Frozen UP Thermistor Abnormal ICE LOW ICE ProductionOthers Removal and Replacement of Components Service for Refrigerant LinesRefrigerant Recovery Evacuation and Recharge R-404A Brazing Removal and Replacement of Compressor Important Page Removal and Replacement of Drier Removal and Replacement of Expansion Valve Removal and Replacement of HOT GAS Valve and Line Valve Page Removal and Replacement of Evaporator Important Page Adjustment of Water Regulating Valve WATER-COOLED Model only Page Removal and Replacement of Thermistor Caution Removal and Replacement of FAN Motor Removal and Replacement of Water Valve Removal and Replacement of Pump Motor Removal and Replacement of Spray Tubes VI. Cleaning and Maintenance Instructions Preparing the Icemaker for Long StoragePage Cleaning and Sanitizing Procedures Cleaning Procedure Page Sanitizing Procedure Maintenance

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