Vulcan-Hart VHX24E service manual VHX Series Steamer Electrical Operation

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VHX SERIES STEAMER - ELECTRICAL OPERATION

1)Compartment steam solenoid valve energized and steam begins to enter the compartment.

2)Ready light (green) goes out and Cooking light (red) comes on.

NOTE: Steam should not be seen entering either compartment until a cook time is set. This energizes the steam solenoid valve of the cooking compartment to allow steam flow.

4.Time expires on timer.

A.Timer contacts 1/3 open, timer motor de- energized.

B.Steam solenoid valve de-energizes, stopping the flow steam into compartment.

C.Timer contacts 4/1 close and energize buzzer until manually turned off.

D.Cooking light (red) goes out and Ready light (green) comes on.

5.Timer manually turned off.

A.Contacts 1/4 open.

B.Alarm Buzzer de-energized and stops buzzing.

6.Steamer reverts to preheat cycle until time is dialed on timer and the door is shut, water level drops below low level cut-off probe or the power switch is turned off.

Page 35 of 48		F25154 (February 2004)

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Contents VHX24E Shown VHX Boiler Base Series High Efficiency Electric SteamerTable of Contents VHX Series Steamers Model Number of Pans PAN Depth PER Compartment Inches INSTALLATION, Operation Cleaning IntroductionGeneral Boiler Pressure SpecificationsWater Conditioning Boiler Code DescriptionsSpecial ToolsElectrical StandardPressure Switch Control BOX Components Removal and Replacement of PartsMain Control BOX Components Left Side View Shown Water Level Gauge AssemblyHeating Elements Heating Elements Heating Element Mounting PlateRight Side View Shown Boiler AssemblyDescaler Cathodic Protector Handle Cooking Compartment DoorsRemoval GasketLatch Assembly Boiler Service Procedures and AdjustmentsMain Water Level Control Water Level Probe Housing BlowdownWater Level Controls Test Auxiliary Low level Cut-Off Control Cycling Pressure Switch Adjustment Boiler Fill and Cold Water Condenser Solenoid Valves High Limit Pressure Switch AdjustmentCold Water Condenser Thermostat Adjustment Cooking Compartment Intake Shut-Off Valve Adjustment Steam FlowHeating Element Test Door Latch Adjustment Door Sealing AdjustmentCold Water Condenser Reset Switch ManualElectrical Operation Component FunctionSteam Solenoid Valve Compartment Pressure SwitchBlowdown/Drain Boiler Base Controls Component LocationsBoiler Base Controls Cooking Compartment Controls Low Level Cut-Off & Differential Control Water Level ControlsAuxiliary Low Level Cut-Off Relay Board Layout, Legend & Diagnostic Test Points Schematic Initial Fill and Preheat Sequence of OperationBoiler Blowdown/drain Water Refill After Initial FillVHX Series Steamer Electrical Operation Schematics Cooking Compartment Controls Wiring Diagrams VHX Series Steamer Electrical Operation Heating Element Circuits Cooking Compartment Controls Boiler Base Controls TroubleshootingSymptom Possible Causes Symptom Possible Causes Symptom Possible Causes Cooking Compartment Controls VHX Series Steamer VHX Series Steamer Part Number Description Condensed Spare Parts ListVHX24E, VHX24E5, MHB24E