Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki KM-630MAF, KM-630MWF service manual b KM-630MRF, U1GMA0179608

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

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[b] KM-630MRF

[b] KM-630MRF

Note: Pressure Switch

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

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U1GMA0179608

Image 29

Hoshizaki KM-630MAF, KM-630MWF service manual b KM-630MRF, U1GMA0179608

Contents

KM-630MAF KM-630MWF KM-630MRF SERVICE MANUALHOSHIZAKI MODULAR CRESCENT CUBER MODELHOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA PAGE CONTENTSSERVICE FOR REFRIGERANT LINES V. REMOVAL AND REPLACEMENT OF COMPONENTSa REFRIGERANT RECOVERY REMOVAL AND REPLACEMENT OF COMPRESSORI. 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 2. CONTROLLER BOARD Features of Control Products “E” Controller Boarda SOLID-STATE CONTROL b CONTROLLER BOARD3 High Temperature Safety - 127 ± 7F 2 Defrost Timer4 Low Water Safety 6 LED Lights and Audible Alarm Safeties1 Minute Fill Cycle 1 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 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 Check a thermistor for resistance by using the following procedures Temperature Fi Disconnect the connector K3 on the board 2 Defrost TimerThe Drain Timer is factory-adjusted, and no adjustment is required 3 Drain TimerSETTING Dip Switche 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-630MRFFrom Defrost Cycle To Defrost Cycle 3. TIMING CHARTIf Float Sw. is OFF To Freeze Cycle From Freeze Cycle 4. PERFORMANCE DATA a KM-630MAF b KM-630MWF c KM-630MRF PROBLEM IV. SERVICE DIAGNOSIS 1. NO ICE PRODUCTIONPOSSIBLE CAUSE REMEDYREMEDY PROBLEMPOSSIBLE CAUSE REMEDY PROBLEMPOSSIBLE CAUSE 3. LOW ICE PRODUCTION 2. EVAPORATOR IS FROZEN UPPROBLEM PROBLEMSolenoid Valve, water system 4. ABNORMAL ICE5. OTHERS 1. SERVICE FOR REFRIGERANT LINES V. REMOVAL AND REPLACEMENT OF COMPONENTSa REFRIGERANT RECOVERY b EVACUATION AND RECHARGE R-404A2. BRAZING DANGER 3. REMOVAL AND REPLACEMENT OF COMPRESSOR IMPORTANT 17 Replace the panels in their correct positions 18 Turn on the power supplyKM9311 4. REMOVAL AND REPLACEMENT OF DRIER5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE 6. REMOVAL AND REPLACEMENT OF HOT GAS VALVE AND LINE VALVE 3 Recover the refrigerant and store it in an approved container 1 Turn off the power supply 2 Remove the panels5 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 Thermistor Lead 11. REMOVAL AND REPLACEMENT OF THERMISTOR CAUTIONCable Tie Foam InsulationMin. 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 INSTRUCTIONS7 Move the Control Switch to the “ICE” position 2 Move the Control Switch, on the Control Box, to the “OFF” position3 Drain the Potable Water Tank 1 Turn off the power supply 2 Move the Control Switch to the “OFF” positionCLOSED POSITION OPEN POSITION 2. CLEANINGa CLEANING PROCEDURE 21 Turn off the power supply after 3 minutes 20 Turn on the power supply to fill the Water Tank with water22 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