Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

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

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

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[c] KM-630MRF

[c] KM-630MRF

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

Contents

SERVICE MANUAL KM-630MAF KM-630MWF KM-630MRFHOSHIZAKI MODULAR CRESCENT CUBER MODELHOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA CONTENTS PAGEV. REMOVAL AND REPLACEMENT OF COMPONENTS SERVICE FOR REFRIGERANT LINESa REFRIGERANT RECOVERY REMOVAL AND REPLACEMENT OF COMPRESSORI. SPECIFICATIONS 1. KM-630MAF 2. KM-630MWF 3. KM-630MRF 4. CONDENSER UNIT URC-6F SPECIFICATIONS MODEL URC-6FII. GENERAL INFORMATION 1. CONSTRUCTION a KM-630MAFb KM-630MWF c KM-630MRF Features of Control Products “E” Controller Board 2. CONTROLLER BOARDa SOLID-STATE CONTROL b CONTROLLER BOARD2 Defrost Timer 3 High Temperature Safety - 127 ± 7F4 Low Water Safety 6 LED Lights and Audible Alarm Safeties1 Minute Fill Cycle Harvest CycleFreeze Cycle Reverse Pump OutControl Products HOS-001A Board c SEQUENCE 1st Cycle IMPORTANT Water Valve opening is limited to 6 minutes2nd Cycle and after with pump drain IMPORTANT Water Valve opening is limited to 6 minutes2nd Cycle and after with no pump drain IMPORTANT Water Valve opening is limited to 6 minutesd CONTROLS AND ADJUSTMENTS Check a thermistor for resistance by using the following procedures i Disconnect the connector K3 on the board2 Defrost Timer SETTING3 Drain Timer The Drain Timer is factory-adjusted, and no adjustment is requiredSETTING Dip Switche CHECKING THE CONTROLLER BOARD At this point, the unit should start the defrost cycle After the 1 minute water supply cycle, the defrost cycle startsIII. TECHNICAL INFORMATION 1. WATER CIRCUIT AND REFRIGERANT CIRCUIT a KM-630MAFb KM-630MWF c KM-630MRF 2. WIRING DIAGRAMS a KM-630MAF and KM-630MWFb KM-630MRF U1GMA01796083. TIMING CHART If Float Sw. is OFFFrom Defrost Cycle To Defrost Cycle To Freeze Cycle From Freeze Cycle 4. PERFORMANCE DATA a KM-630MAF b KM-630MWF c KM-630MRF IV. SERVICE DIAGNOSIS 1. NO ICE PRODUCTION PROBLEMPOSSIBLE CAUSE REMEDYPROBLEM POSSIBLE CAUSEREMEDY PROBLEM POSSIBLE CAUSEREMEDY 2. EVAPORATOR IS FROZEN UP 3. LOW ICE PRODUCTIONPROBLEM PROBLEM4. ABNORMAL ICE 5. OTHERSSolenoid Valve, water system V. REMOVAL AND REPLACEMENT OF COMPONENTS 1. SERVICE FOR REFRIGERANT LINESa REFRIGERANT RECOVERY b EVACUATION AND RECHARGE R-404A2. BRAZING DANGER 3. REMOVAL AND REPLACEMENT OF COMPRESSOR IMPORTANT 18 Turn on the power supply 17 Replace the panels in their correct positions4. REMOVAL AND REPLACEMENT OF DRIER 5. REMOVAL AND REPLACEMENT OF EXPANSION VALVEKM9311 6. REMOVAL AND REPLACEMENT OF HOT GAS VALVE AND LINE VALVE 1 Turn off the power supply 2 Remove the panels 3 Recover the refrigerant and store it in an approved container5 Disconnect the Hot Gas Valve or Line Valve using brazing equipment 6 Install the new valve7. REMOVAL AND REPLACEMENT OF EVAPORATOR IMPORTANT Page 9. ADJUSTMENT OF WATER REGULATING VALVE - WATER-COOLED MODEL ONLY Page 11. REMOVAL AND REPLACEMENT OF THERMISTOR CAUTION Thermistor LeadCable Tie Foam Insulation12. REMOVAL AND REPLACEMENT OF FAN MOTOR Min. 4-3/4 Liquid Bypass Flow13. REMOVAL AND REPLACEMENT OF WATER VALVE 14. REMOVAL AND REPLACEMENT OF PUMP MOTOR15. REMOVAL AND REPLACEMENT OF SPRAY TUBES VI. MAINTENANCE AND CLEANING INSTRUCTIONS 1. PREPARING THE ICEMAKER FOR LONG STORAGE2 Move the Control Switch, on the Control Box, to the “OFF” position 7 Move the Control Switch to the “ICE” position3 Drain the Potable Water Tank 1 Turn off the power supply 2 Move the Control Switch to the “OFF” position2. CLEANING CLOSED POSITION OPEN POSITIONa CLEANING PROCEDURE 20 Turn on the power supply to fill the Water Tank with water 21 Turn off the power supply after 3 minutes22 Remove the Front Panel, and fully open the Cleaning Valve 23 Move the Control Switch to the “Wash” positionb SANITIZING PROCEDURE - Following Cleaning Procedure 3. MAINTENANCE