Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki KM-630MWF, KM-630MAF service manual KM-630MRF

Models: KM-630MRF KM-630MWF KM-630MAF

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3. KM-630MRF

3. KM-630MRF

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Hoshizaki KM-630MWF, KM-630MAF service manual KM-630MRF

Contents

MODEL SERVICE MANUALKM-630MAF KM-630MWF KM-630MRF HOSHIZAKI MODULAR CRESCENT CUBERHOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA PAGE CONTENTSREMOVAL AND REPLACEMENT OF COMPRESSOR V. REMOVAL AND REPLACEMENT OF COMPONENTSSERVICE FOR REFRIGERANT LINES a REFRIGERANT RECOVERYI. SPECIFICATIONS 1. KM-630MAF 2. KM-630MWF 3. KM-630MRF 4. CONDENSER UNIT URC-6F MODEL URC-6F SPECIFICATIONSa KM-630MAF II. GENERAL INFORMATION 1. CONSTRUCTIONb KM-630MWF c KM-630MRF b CONTROLLER BOARD Features of Control Products “E” Controller Board2. CONTROLLER BOARD a SOLID-STATE CONTROL6 LED Lights and Audible Alarm Safeties 2 Defrost Timer3 High Temperature Safety - 127 ± 7F 4 Low Water SafetyFreeze Cycle 1 beep every 3 sec. = High Evaporator Temperature 127 F1 Minute Fill Cycle Harvest CycleControl Products HOS-001A Board IMPORTANT Water Valve opening is limited to 6 minutes c SEQUENCE 1st CycleIMPORTANT Water Valve opening is limited to 6 minutes 2nd Cycle and after with pump drainIMPORTANT Water Valve opening is limited to 6 minutes 2nd Cycle and after with no pump draind CONTROLS AND ADJUSTMENTS 2 Defrost Timer Temperature FCheck a thermistor for resistance by using the following procedures i Disconnect the connector K3 on the boardDip Switch 3 Drain TimerThe Drain Timer is factory-adjusted, and no adjustment is required SETTINGe CHECKING THE CONTROLLER BOARD After the 1 minute water supply cycle, the defrost cycle starts At this point, the unit should start the defrost cycle1. WATER CIRCUIT AND REFRIGERANT CIRCUIT a KM-630MAF III. TECHNICAL INFORMATIONb KM-630MWF c KM-630MRF a KM-630MAF and KM-630MWF 2. WIRING DIAGRAMSU1GMA0179608 b KM-630MRFIf Float Sw. is OFF 3. TIMING CHARTFrom Defrost Cycle To Defrost Cycle To Freeze Cycle From Freeze Cycle 4. PERFORMANCE DATA a KM-630MAF b KM-630MWF c KM-630MRF REMEDY IV. SERVICE DIAGNOSIS 1. NO ICE PRODUCTIONPROBLEM POSSIBLE CAUSEPOSSIBLE CAUSE PROBLEMREMEDY POSSIBLE CAUSE PROBLEMREMEDY PROBLEM 2. EVAPORATOR IS FROZEN UP3. LOW ICE PRODUCTION PROBLEM5. OTHERS 4. ABNORMAL ICESolenoid Valve, water system b EVACUATION AND RECHARGE R-404A V. REMOVAL AND REPLACEMENT OF COMPONENTS1. SERVICE FOR REFRIGERANT LINES a REFRIGERANT RECOVERY2. BRAZING DANGER 3. REMOVAL AND REPLACEMENT OF COMPRESSOR IMPORTANT 17 Replace the panels in their correct positions 18 Turn on the power supply5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE 4. REMOVAL AND REPLACEMENT OF DRIERKM9311 6. REMOVAL AND REPLACEMENT OF HOT GAS VALVE AND LINE VALVE 6 Install the new valve 1 Turn off the power supply 2 Remove the panels3 Recover the refrigerant and store it in an approved container 5 Disconnect the Hot Gas Valve or Line Valve using brazing equipment7. REMOVAL AND REPLACEMENT OF EVAPORATOR IMPORTANT Page 9. ADJUSTMENT OF WATER REGULATING VALVE - WATER-COOLED MODEL ONLY Page Foam Insulation 11. REMOVAL AND REPLACEMENT OF THERMISTOR CAUTIONThermistor Lead Cable TieMin. 4-3/4 Liquid Bypass Flow 12. REMOVAL AND REPLACEMENT OF FAN MOTOR14. REMOVAL AND REPLACEMENT OF PUMP MOTOR 13. REMOVAL AND REPLACEMENT OF WATER VALVE15. REMOVAL AND REPLACEMENT OF SPRAY TUBES 1. PREPARING THE ICEMAKER FOR LONG STORAGE VI. MAINTENANCE AND CLEANING INSTRUCTIONS2 Move the Control Switch to the “OFF” position 2 Move the Control Switch, on the Control Box, to the “OFF” position7 Move the Control Switch to the “ICE” position 3 Drain the Potable Water Tank 1 Turn off the power supplyCLOSED POSITION OPEN POSITION 2. CLEANINGa CLEANING PROCEDURE 23 Move the Control Switch to the “Wash” position 20 Turn on the power supply to fill the Water Tank with water21 Turn off the power supply after 3 minutes 22 Remove the Front Panel, and fully open the Cleaning Valveb SANITIZING PROCEDURE - Following Cleaning Procedure 3. MAINTENANCE