Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki KM-630MRH Iii. Technical Information, Water Circuit And Refrigerant Circuit, aKM-630MAH

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

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III. TECHNICAL INFORMATION

III. TECHNICAL INFORMATION

1.WATER CIRCUIT AND REFRIGERANT CIRCUIT

[a]KM-630MAH

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Hoshizaki KM-630MRH, KM-630MWH service manual Iii. Technical Information, Water Circuit And Refrigerant Circuit, aKM-630MAH

Contents

HOSHIZAKI MODULAR CRESCENT CUBER KM-630MAH KM-630MWH KM-630MRHMODEL Page CONTENTS IV. SERVICE DIAGNOSIS V. REMOVAL AND REPLACEMENT OF COMPONENTS1. SERVICE FOR REFRIGERANT LINES a REFRIGERANT RECOVERYSPECIFICATIONS KM-630MAH2a. KM-630MWHSerial #L00001D - M20270B 2b. KM-630MWHSerial #M20301E 3. KM-630MRH 4. CONDENSER UNIT URC-6FSPECIFICATIONS MODEL URC-6FaKM-630MAH II.GENERAL INFORMATION 1. CONSTRUCTIONMechanical Bin Control b KM-630MWH c KM-630MRH Spray Tubes Control SwitchExpansion Valve Compressor Float Switch Water Pump MechanicalFeatures of Control Products “E” Controller Board 2. CONTROLLER BOARDa SOLID-STATECONTROL b CONTROLLER BOARD2Defrost Timer 3High Temperature Safety - 127 ± 7F4Low Water Safety 6LED Lights and Audible Alarm Safeties1 Minute Fill Cycle Harvest CycleFreeze 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 FOR MODELS WITH MECHANICAL BIN CONTROL d CONTROLS AND ADJUSTMENTSFOR MODELS WITH THERMOSTAT Switch Nos. 9 and Temperature FiDisconnect the connector K3 on the board 1 Defrost Control2 Defrost Timer SETTINGDip Switch Dip SwitchMODELS WITH THERMOSTAT MODELS WITH MECHANICAL BIN CONTROL e CHECKING THE CONTROLLER BOARD3. MECHANICAL BIN CONTROL aPROXIMITY SWITCHbEXPLANATION OF OPERATION cTROUBLESHOOTING MECHANICAL BIN CONTROL ONLY 1.WATER CIRCUIT AND REFRIGERANT CIRCUIT III. TECHNICAL INFORMATIONaKM-630MAH b KM-630MWH c KM-630MRH 2. WIRING DIAGRAMS Page b1 KM-630MRHwith auxiliary codes L-0, M-0, M-1 Note Pressure SwitchCut-out PSIGb2 KM-630MRHwith auxiliary codes M-2and after 3. TIMING CHART Page 4.PERFORMANCE DATA a KM-630MAH1250 1332b1 KM-630MWHSerial #L00001D - M20270B b2 KM-630MWHSerial #M20301E c KM-630MRH APPROXIMATE ICE1332 1414IV. SERVICE DIAGNOSIS 1. NO ICE PRODUCTION PROBLEMPOSSIBLE CAUSE REMEDYPOSSIBLE CAUSE PROBLEMREMEDY POSSIBLE CAUSE PROBLEMREMEDY 2. EVAPORATOR IS FROZEN UP 4. ABNORMAL ICE 3. LOW ICE PRODUCTION5. OTHERS V. REMOVAL AND REPLACEMENT OF COMPONENTS 1.SERVICE FOR REFRIGERANT LINESa REFRIGERANT RECOVERY 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 1Turn off the power supply 2Remove the panels 6Install the new valve7Install the new Drier 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 21Turn off the power supply after 3 minutes 23Move the Control Switch to the “Wash” position26Turn off the power supply after 5 minutes 19Replace the Front Panel in its correct positionb SANITIZING PROCEDURE 3. MAINTENANCE