Vulcan-Hart MHB24G, VHX24G5 manual Tools, Gas Supply, Standard, Special

Page 7

VHX SERIES STEAMERS - GENERAL

Gas Supply

 

INPUT

MANIFOLD

PILOT

LINE PRESSURE

 

 

 

(INCHES W.C.)

 

 

PRESSURE

PRESSURE

 

 

 

(BTU/HR)

 

 

 

 

MODEL

(INCHES W.C.)

(INCHES W.C.)

NATURAL

 

PROPANE

 

 

 

 

 

 

 

 

 

 

 

 

MAXIMUM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MINIMUM

 

MINIMUM

 

NAT.

PROP.

NAT.

PROP.

NAT.

PROP.

 

ALLOWED

 

RECOMMENDED

 

RECOMMENDED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VHX24G

200,000

200,000

3.0

3.0

3.5

3.5

7.0

 

11.0

 

 

 

 

 

 

 

 

 

 

 

270,000

270,000

3.0

3.0

3.5

3.5

7.0

 

11.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VHX24G5

200,000

200,000

3.0

3.0

3.5

3.5

7.0

 

11.0

14.0

 

 

 

 

 

 

 

 

 

270,000

270,000

3.0

3.0

3.5

3.5

7.0

 

11.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MHB24G

200,000

200,000

3.0

3.0

3.5

3.5

7.0

 

11.0

 

 

 

 

 

 

 

 

 

 

 

270,000

270,000

3.0

3.0

3.5

3.5

7.0

 

11.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE:

1. Output Boiler Horsepower (BHP): 4.3 BHP for 200,000 BTU; 5.5 BHP for 270,000 BTU.

 

2. Input BTU/HR difference is based on gas orifice size and air orifice size.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOOLS

Standard

Standard set of hand tools.

Volt-Ohm-Meter (VOM) with AC current tester.

(Any quality VOM with a sensitivity of at least 20,000 ohms per volt can be used) Gas leak checking equipment.

Gas pressure manometer

Temperature meter and thermocouple.

Special

The recommended deliming chemical for the water treatment system in use, for deliming of the boiler.

￿Contact Vulcan Authorized Service Centers.

Heat Exchanger Gasket (joint sealant strip, Teflon) P/N 854058-1.

Page 7 of 68

 

F24700 (October 2001)

 

Page 6 Page 8
Image 7
Page 6 Page 8
Contents VHX24G Shown VHX Boiler Base Series High Efficiency GAS SteamersTable of Contents VHX Series Steamers Maintenance Cleaning Introduction InstallationGeneral Boiler Control Styles Electrical Water Conditioning SpecificationsSystem Water SupplySpecial ToolsGas Supply StandardVHX Series Steamers Operation Steamer OperationCabinet Base Boiler Cooking Compartment ControlsBoiler Blowdown Steamer Shut OFF Ignition Control Module Component FunctionVHX Series Steamers Component Function Blowdown/DrainPressure Relief Valve Steam Header AssemblyWater Level Water Inlet Valve manualSteam Supply Manifold Compartment Pressure SwitchSteam Solenoid Valve Manifold Pressure GaugeCabinet Base Boiler Controls Removal and Replacement of PartsVHX Series Steamers Removal and Replacement of Parts Component LocationsCabinet Base Boiler Controls Relay Board Water Level Controls Main or Auxiliary LlcoCooking Compartment Controls Pressure Switches Water Level Gauge AssemblyBoiler Assembly Boiler Fill and Cold Water Condenser Solenoid Valves Pilot GAS Valve Main GAS ValveComplete Burner Assembly Burner Head AssemblyHeat Exchanger VHX Series Steamers Removal and Replacement of Parts Removal Cooking Compartment DoorsGasket Handle Latch AssemblyInspection Service Procedures and AdjustmentsClean-Out BoilerDescaler Cathodic Protector Water Level Probe Housing BlowdownTest Water Level ControlsAuxiliary Low level Cut-Off Control Cycling High LimitSmall increments Fill and Cold Water Solenoid ValvesBoiler BLOWDOWN/DRAIN Solenoid Valve Inline Water Strainer CleaningMain Burner Ignition Checks Pressure Switch AdjustmentGAS Manifold Pressure Adjustment VHX Series Steamer Service Procedures and Adjustments AIR Pressure Switch Adjustment GAS Pilot Pressure Adjustment Pressure Readings Inches W.C GAS Manifold Pressure Adjustment Terminals Ignition Control Module ChecksSpark Verification Test Cooking Compartment Doors Intake Shut-Off Valve Adjustment Steam FlowDoor Sealing Adjustment Cooking CompartmentVHX Series Steamer Electrical Operation Door Latch AdjustmentLow Level Cut-Off & Differential Control Electrical OperationAuxiliary Low Level Cut-Off LED Legend Board Layout and LED LegendAux Water Level Satisfied State B Boiler Operational Status LED IndicatorReset Engaged State C Initial Conditions State aBurner ON, Boiler Heating to generate steam State E Air Pressure Switch Satisfied State DK32 Close K51 CloseHL-LED Sequence of OperationNEW Style Controls Boiler Initial Fill and PreheatN14, N16, N17 go out N9, N10, N11, N12, N13 go outBoiler Blowdown/drain Water Refill After Initial FillVHX Series Steamer Electrical Operation Cooking Compartment Controls This page Intentionally Left Blank Models Built After 5/25/00 New Style Boiler Controls SchematicsVHX Series Steamer Electrical Operation Models Built Before 5/25/00 Old Style Boiler Controls Cooking Compartment Controls Wiring Diagrams VHX Series Steamer Electrical Operation Models Built Before 5/25/00 Old Style Boiler Controls VHX Series Steamer Electrical Operation Cooking Compartment Controls VHX Series Steamer Troubleshooting TroubleshootingBoiler Base Controls Symptom Possible Causes Adjustments Boiler blowdown solenoid valve clogged and not fully closing Boiler Base Procedures and Adjustments VHX Series Steamer VHX Series Steamer Condensed Spare Parts List Condensed Spare Parts ListNEW Style Controls only VHX24G, VHX24G5, MHB24G
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