Hoshizaki KM-630MWH, KM-630MAH service manual B1 KM-630MRH with auxiliary codes L-0, M-0, M-1

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[b1] KM-630MRH (with auxiliary codes L-0, M-0, M-1)

Note: Pressure Switch

Cut-out	412	+ 21	PSIG
		- 0
Cut-in	327 ± 21		PSIG

33

U1GMA0179608

Image 33

Contents KM-630MAH KM-630MWH KM-630MRH Hoshizaki AMERICA, INC Contents Maintenance Water TEMP. F Specifications KM-630MAH2a. KM-630MWH Serial #L00001D M20270B 2b. KM-630MWH Serial #M20301E KM-630MRH URC-6F Condenser UnitSpecifications KM-630MAH II. General Information ConstructionKM-630MWH KM-630MRH Controller Board Features of Control Products E Controller BoardSOLID-STATE Control Controller BoardPage Minute Fill Cycle Beep every 3 sec. = High Evaporator Temperature 127 FHarvest Cycle Freeze CycleControl Products HOS-001A Board Important Water Valve opening is limited to 6 minutes Sequence 1st Cycle2nd Cycle and after with pump drain 2nd Cycle and after with no pump drain For Models with Thermostat Controls and AdjustmentsPage Setting Time Models with Thermostat Checking the Controller Board Models with Mechanical BIN ControlProximity Switch Mechanical BIN ControlExplanation 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 157 Performance DataPressure Drop of Cooling Water Line B1 KM-630MWH Serial #L00001D M20270BB2 KM-630MWH Serial #M20301E 603 Problem Possible Cause Remedy IV. Service Diagnosis 1. no ICE ProductionController Board Problem Possible Cause Remedy Thermistor Evaporator is Frozen UPLOW ICE Production Abnormal ICEOthers Service for Refrigerant Lines Removal and Replacement of ComponentsRefrigerant Recovery Evacuation and Recharge R-404ABrazing Removal and Replacement of Compressor Important Page Removal and Replacement of Expansion Valve Removal and Replacement of DrierRemoval 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 Pump Motor Removal and Replacement of Water ValveRemoval and Replacement of Spray Tubes Preparing the Icemaker for Long Storage VI. Cleaning and Maintenance InstructionsPage Cleaning and Sanitizing Procedures Cleaning Procedure Page Sanitizing Procedure Maintenance