Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

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

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

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[c] KM-630MRH

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

Contents

KM-630MAH KM-630MWH KM-630MRH HOSHIZAKI MODULAR CRESCENT CUBERMODEL Page CONTENTS 1. SERVICE FOR REFRIGERANT LINES IV. SERVICE DIAGNOSISV. REMOVAL AND REPLACEMENT OF COMPONENTS a REFRIGERANT RECOVERYSPECIFICATIONS KM-630MAH2a. KM-630MWHSerial #L00001D - M20270B 2b. KM-630MWHSerial #M20301E 3. KM-630MRH 4. CONDENSER UNIT URC-6FSPECIFICATIONS MODEL URC-6FII.GENERAL INFORMATION 1. CONSTRUCTION aKM-630MAHMechanical Bin Control b KM-630MWH Expansion Valve Compressor Float Switch c KM-630MRHSpray Tubes Control Switch Water Pump Mechanicala SOLID-STATECONTROL Features of Control Products “E” Controller Board2. CONTROLLER BOARD b CONTROLLER BOARD4Low Water Safety 2Defrost Timer3High Temperature Safety - 127 ± 7F 6LED Lights and Audible Alarm SafetiesFreeze Cycle 1 Minute Fill CycleHarvest Cycle Reverse Pump OutControl Products HOS-001ABoard cSEQUENCE 1st Cycle 2nd Cycle and after with pump drain 2nd Cycle and after with no pump drain d CONTROLS AND ADJUSTMENTS FOR MODELS WITH MECHANICAL BIN CONTROLFOR MODELS WITH THERMOSTAT iDisconnect the connector K3 on the board Switch Nos. 9 andTemperature F 1 Defrost ControlDip Switch 2 Defrost TimerSETTING Dip SwitchMODELS WITH THERMOSTAT MODELS WITH MECHANICAL BIN CONTROL e CHECKING THE CONTROLLER BOARDaPROXIMITY SWITCH 3. MECHANICAL BIN CONTROLbEXPLANATION OF OPERATION cTROUBLESHOOTING MECHANICAL BIN CONTROL ONLY III. TECHNICAL INFORMATION 1.WATER CIRCUIT AND REFRIGERANT CIRCUITaKM-630MAH b KM-630MWH c KM-630MRH 2. WIRING DIAGRAMS Page Cut-out b1 KM-630MRHwith auxiliary codes L-0, M-0, M-1Note Pressure Switch PSIGb2 KM-630MRHwith auxiliary codes M-2and after 3. TIMING CHART Page 1250 4.PERFORMANCE DATAa KM-630MAH 1332b1 KM-630MWHSerial #L00001D - M20270B b2 KM-630MWHSerial #M20301E 1332 c KM-630MRHAPPROXIMATE ICE 1414POSSIBLE CAUSE IV. SERVICE DIAGNOSIS 1. NO ICE PRODUCTIONPROBLEM REMEDYPROBLEM POSSIBLE CAUSEREMEDY PROBLEM POSSIBLE CAUSEREMEDY 2. EVAPORATOR IS FROZEN UP 3. LOW ICE PRODUCTION 4. ABNORMAL ICE5. OTHERS a REFRIGERANT RECOVERY V. REMOVAL AND REPLACEMENT OF COMPONENTS1.SERVICE FOR REFRIGERANT LINES bEVACUATION AND RECHARGE R-404A2. BRAZING DANGER 3.REMOVAL AND REPLACEMENT OF COMPRESSOR IMPORTANT 18Turn on the power supply 17Replace the panels in their correct positions4. REMOVAL AND REPLACEMENT OF DRIER 5.REMOVAL AND REPLACEMENT OF EXPANSION VALVE7Install the new Drier 7Install the new Drier 1Turn off the power supply 2Remove the panels6Install the new valve 14Turn on the power supply7.REMOVAL AND REPLACEMENT OF EVAPORATOR IMPORTANT 1Turn off the power supply Page 1Turn off the power supply 11.REMOVAL AND REPLACEMENT OF THERMISTOR CAUTION 12. REMOVAL AND REPLACEMENT OF FAN MOTOR 13. REMOVAL AND REPLACEMENT OF WATER VALVE 14. REMOVAL AND REPLACEMENT OF PUMP MOTOR15. REMOVAL AND REPLACEMENT OF SPRAY TUBES VI. CLEANING AND MAINTENANCE INSTRUCTIONS 1. PREPARING THE ICEMAKER FOR LONG STORAGEPage 2. CLEANING AND SANITIZING PROCEDURES aCLEANING PROCEDURE 26Turn off the power supply after 5 minutes 21Turn off the power supply after 3 minutes23Move the Control Switch to the “Wash” position 19Replace the Front Panel in its correct positionb SANITIZING PROCEDURE 3. MAINTENANCE