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Vulcan-Hart
VHX24G5, MHB24G
manual
VHX Series Steamer Electrical Operation
Models:
VHX24G5
VHX24G
MHB24G
1
59
68
68
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68 pages
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Troubleshooting
Install
Parts list
Schematics
Reset Engaged State C
Steam Header Assembly
Procedures and Adjustments
Pressure Switch Adjustment
Clean-Out
Compartment Pressure Switch
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VHX SERIES STEAMER - ELECTRICAL OPERATION
Page 59 of 68
F24700 (October 2001)
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Contents
VHX24G Shown
VHX Boiler Base Series High Efficiency GAS Steamers
Table of Contents
VHX Series Steamers
General
Installation
Maintenance Cleaning Introduction
Boiler Control Styles
Electrical
Water Conditioning Specifications
System
Water Supply
Special
Tools
Gas Supply
Standard
VHX Series Steamers Operation
Steamer Operation
Cabinet Base Boiler
Cooking Compartment Controls
Boiler Blowdown Steamer Shut OFF
Ignition Control Module
Component Function
VHX Series Steamers Component Function
Blowdown/Drain
Pressure Relief Valve
Steam Header Assembly
Water Level
Water Inlet Valve manual
Steam Supply Manifold
Compartment Pressure Switch
Steam Solenoid Valve
Manifold Pressure Gauge
Cabinet Base Boiler Controls
Removal and Replacement of Parts
VHX Series Steamers Removal and Replacement of Parts
Component Locations
Cabinet Base Boiler Controls
Cooking Compartment Controls
Water Level Controls Main or Auxiliary Llco
Relay Board
Boiler Assembly
Water Level Gauge Assembly
Pressure Switches
Boiler Fill and Cold Water Condenser Solenoid Valves
Pilot GAS Valve Main GAS Valve
Complete Burner Assembly
Burner Head Assembly
Heat Exchanger
VHX Series Steamers Removal and Replacement of Parts
Gasket
Cooking Compartment Doors
Removal
Handle
Latch Assembly
Inspection
Service Procedures and Adjustments
Clean-Out
Boiler
Descaler Cathodic Protector
Water Level Probe Housing Blowdown
Test
Water Level Controls
Auxiliary Low level Cut-Off Control
Cycling
High Limit
Small increments
Fill and Cold Water Solenoid Valves
Boiler BLOWDOWN/DRAIN Solenoid Valve
Inline Water Strainer Cleaning
Main Burner Ignition Checks
Pressure Switch Adjustment
GAS 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 Checks
Spark Verification Test
Cooking Compartment Doors
Intake Shut-Off Valve Adjustment Steam Flow
Door Sealing Adjustment
Cooking Compartment
VHX Series Steamer Electrical Operation
Door Latch Adjustment
Low Level Cut-Off & Differential Control
Electrical Operation
Auxiliary Low Level Cut-Off
LED Legend
Board Layout and LED Legend
Aux Water Level Satisfied State B
Boiler Operational Status LED Indicator
Reset Engaged State C
Initial Conditions State a
Burner ON, Boiler Heating to generate steam State E
Air Pressure Switch Satisfied State D
K32 Close
K51 Close
HL-LED
Sequence of Operation
NEW Style Controls Boiler
Initial Fill and Preheat
N14, N16, N17 go out
N9, N10, N11, N12, N13 go out
Boiler Blowdown/drain
Water Refill After Initial Fill
VHX Series Steamer Electrical Operation
Cooking Compartment Controls
This page Intentionally Left Blank
Models Built After 5/25/00 New Style Boiler Controls
Schematics
VHX 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
Boiler Base Controls
Troubleshooting
VHX Series Steamer Troubleshooting
Symptom Possible Causes
Adjustments
Boiler blowdown solenoid valve clogged and not fully closing
Boiler Base
Procedures and Adjustments
VHX Series Steamer
NEW Style Controls only VHX24G, VHX24G5, MHB24G
Condensed Spare Parts List
VHX Series Steamer Condensed Spare Parts List