Manuals / Vulcan-Hart / Kitchen Appliance / Electric Steamer

Vulcan-Hart ML-126853 Schematics, Vhx Series Steamer - Electrical Operation, Boiler Base Controls

Models: ML-126852 MHB24E VHX24E5 ML-126853 ML-126857

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SCHEMATICS

VHX SERIES STEAMER - ELECTRICAL OPERATION

SCHEMATICS

Boiler Base Controls

F25154 (February 2004)		Page 36 of 48

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Vulcan-Hart ML-126853, MHB24E Schematics, Vhx Series Steamer - Electrical Operation, Boiler Base Controls, F25154 February

Contents

VHX BOILER BASE SERIES HIGH EFFICIENCY ELECTRIC STEAMERVHX24E SHOWN NOTICE VHX24E ML-126852 VHX24E5 ML-126853TABLE OF CONTENTS VHX SERIES STEAMERS VULCANPage 3 of F25154 FebruaryINSTALLATION, OPERATION AND CLEANING GENERALINTRODUCTION Steam CookingSPECIFICATIONS WATER CONDITIONINGBoiler Code Descriptions Boiler PressureTOOLS ElectricalStandard SpecialREMOVAL AND REPLACEMENT OF PARTS PRESSURE SWITCH CONTROL BOX COMPONENTSMAIN CONTROL BOX COMPONENTS WATER LEVEL GAUGE ASSEMBLY LEFT SIDE VIEW SHOWNHEATING ELEMENTS HEATING ELEMENT MOUNTING PLATE BOILER ASSEMBLY RIGHT SIDE VIEW SHOWNLEFT SIDE VIEW SHOWN DESCALER Cathodic Protector LEFT SIDE VIEW SHOWNLEFT SIDE VIEW SHOWN COOKING COMPARTMENT DOORS RemovalGasket HandleLatch Assembly SERVICE PROCEDURES AND ADJUSTMENTS Clean-OutBOILER InspectionWATER LEVEL PROBE HOUSING BLOWDOWN WATER LEVEL CONTROLS TESTMain Water Level Control Auxiliary Low level Cut-OffControl CYCLING PRESSURE SWITCH ADJUSTMENT HIGH LIMIT PRESSURE SWITCH ADJUSTMENT COLD WATER CONDENSER THERMOSTAT ADJUSTMENT Intake Shut-OffValve Adjustment Steam Flow HEATING ELEMENT TESTCOOKING COMPARTMENT Door Sealing Adjustment Door Latch AdjustmentReset Switch Manual Cycling Pressure SwitchHigh Limit Pressure Switch ELECTRICAL OPERATIONCompartment Pressure Switch COOKING COMPARTMENT CONTROLSBlowdown/Drain Steam Solenoid ValveCOMPONENT LOCATIONS Boiler Base ControlsBoiler Base Controls Continued VHX SERIES STEAMER - ELECTRICAL OPERATIONPage 27 of F25154 FebruaryCooking Compartment Controls VHX SERIES STEAMER - ELECTRICAL OPERATIONF25154 February Page 28 ofWATER LEVEL CONTROLS Low Level Cut-Off& Differential ControlAuxiliary Low Level Cut-Off Layout, Legend & Diagnostic Test Points RELAY BOARDSchematic VHX SERIES STEAMER - ELECTRICAL OPERATIONF25154 February Page 32 ofSEQUENCE OF OPERATION Initial Fill and PreheatWater Refill After Initial Fill Boiler Blowdown/drain4.Time expires on timer 5.Timer manually turned off A.Contacts 1/4 openB.Alarm Buzzer de-energizedand stops buzzing VHX SERIES STEAMER - ELECTRICAL OPERATIONSCHEMATICS VHX SERIES STEAMER - ELECTRICAL OPERATIONBoiler Base Controls F25154 FebruaryVHX SERIES STEAMER - ELECTRICAL OPERATION Cooking Compartment ControlsPage 37 of F25154 FebruaryWIRING DIAGRAMS VHX SERIES STEAMER - ELECTRICAL OPERATIONBoiler Base Controls F25154 FebruaryVHX SERIES STEAMER - ELECTRICAL OPERATION Page 39 ofF25154 February Heating Element Circuits VHX SERIES STEAMER - ELECTRICAL OPERATIONF25154 February Page 40 ofVHX SERIES STEAMER - ELECTRICAL OPERATION Cooking Compartment ControlsPage 41 of F25154 FebruaryTROUBLESHOOTING SYMPTOMBOILER BASE CONTROLS POSSIBLE CAUSESVHX SERIES STEAMER - TROUBLESHOOTING SYMPTOMPOSSIBLE CAUSES VHX SERIES STEAMER - TROUBLESHOOTING SYMPTOMPOSSIBLE CAUSES COOKING COMPARTMENT CONTROLS SYMPTOMPOSSIBLE CAUSES VHX SERIES STEAMER F25154 FebruaryPage 46 of VHX SERIES STEAMER Page 47 ofF25154 February CONDENSED SPARE PARTS LIST VHX24E, VHX24E5, MHB24EPART NUMBER DESCRIPTION