Vulcan-Hart VHX24E5, ML-126857, ML-126853, MHB24E, ML-126852 Boiler Assembly, Right Side View Shown

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VHX SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS

C.Position heating element mounting plate with mounting studs for the element cover at the top.

NOTE: When installing heating element mounting plate, install and tighten the mounting bolts as indicated to ensure the mounting plate is flush with boiler flange and gasket is evenly compressed. If bolt is not threading properly by hand, clean out the threads with a 3/8 x 16 tap.

D.Align mounting holes then press and hold heating element mounting plate against the gasket. Install two bolts at the top and two bolts at the bottom. Hand Tighten Only.

E.Starting with the bottom bolts, tighten each bolt a few turns at a time and alternate between the bottom and top bolts.

F.Install two bolts at the left and two bolts at the right on the heating element mounting plate. Tighten each bolt a few turns at a time and alternate between the left and right bolts.

G.Install the four remaining bolts. Tighten each bolt a few turns at a time and alternate between the four remaining bolts.

11.To complete heating element mounting plate installation, reverse procedure from main control box removal.

BOILER ASSEMBLY

WARNING: DISCONNECT THE

ELECTRICAL POWER TO THE

MACHINE AND FOLLOW LOCKOUT /

TAGOUT PROCEDURES.

NOTE: To perform this procedure, the steamer must be accessible from all sides.

1.Turn power switch off and allow boiler to blowdown/drain.

2.Turn water supply off.

3.Remove left and right side panels.

4.Raise steamer from the bottom right side by approximately three inches to drain the remaining water from boiler. Lower steamer when boiler is empty.

5.Remove heating element mounting plate as outlined under HEATING ELEMENT MOUNTING PLATE.

6.Disconnect pressure gauge tube from gauge.

7.Disconnect air equalization tube and remove.

RIGHT SIDE VIEW SHOWN

8.Remove gauge glass as outlined under

WATER LEVEL GAUGE ASSEMBLY.

9.Disconnect water level probe lead wires.

10.Remove coil from blowdown/drain valve.

11.Disconnect boiler fill and cold water condenser valve water lines and remove lines.

LEFT SIDE VIEW SHOWN

12.Remove cover from pressure switch control box and loosen conduit locking nut.

13.Remove mounting screws for pressure switch control box.

14.Disconnect pressure relief valve drain line at the valve.

15.Disconnect water level probe housing air equalization tube and remove tube.

16.Disconnect water level probe housing drain line from condenser drain box.

17.Disconnect boiler drain line from condenser drain box.

F25154 (February 2004)

 

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Contents VHX Boiler Base Series High Efficiency Electric Steamer VHX24E ShownTable of Contents VHX Series Steamers INSTALLATION, Operation Cleaning Introduction GeneralModel Number of Pans PAN Depth PER Compartment Inches Specifications 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 Heating ElementsBoiler Assembly Right Side View ShownDescaler Cathodic Protector Cooking Compartment Doors RemovalGasket HandleLatch Assembly Service Procedures and Adjustments BoilerWater Level Probe Housing Blowdown Water Level Controls TestMain Water Level Control Auxiliary Low level Cut-Off Control Cycling Pressure Switch Adjustment High Limit Pressure Switch Adjustment Boiler Fill and Cold Water Condenser Solenoid ValvesCold Water Condenser Thermostat Adjustment Intake Shut-Off Valve Adjustment Steam Flow Heating Element TestCooking Compartment Door Sealing Adjustment Door Latch AdjustmentReset Switch Manual Electrical OperationComponent Function Cold Water CondenserCompartment Pressure Switch Blowdown/DrainSteam Solenoid Valve Component Locations Boiler Base ControlsBoiler Base Controls Cooking Compartment Controls Water Level Controls Low Level Cut-Off & Differential ControlAuxiliary Low Level Cut-Off Layout, Legend & Diagnostic Test Points Relay BoardSchematic Sequence of Operation Initial Fill and PreheatWater Refill After Initial Fill Boiler Blowdown/drainVHX Series Steamer Electrical Operation Schematics Cooking Compartment Controls Wiring Diagrams VHX Series Steamer Electrical Operation Heating Element Circuits Cooking Compartment Controls Troubleshooting Symptom Possible CausesBoiler Base Controls Symptom Possible Causes Symptom Possible Causes Cooking Compartment Controls VHX Series Steamer VHX Series Steamer Condensed Spare Parts List VHX24E, VHX24E5, MHB24EPart Number Description