SERVICE MANUAL
VL BOILER BASE SERIES CONVECTION STEAMERS
TABLE OF CONTENTS
Wiring Diagrams, Electric Heater Circuits
Schematics, Gas Steamers, Boiler Controls
Wiring Diagrams, Gas Steamers, Boiler Controls
Schematics, Electric Steamers, Boiler Controls
INTRODUCTION
GENERAL
WATER CONDITIONING
Special
SPECIFICATIONS
TOOLS
Standard
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VL SERIES STEAMERS - GENERAL
Gas Steamers
Electric Steamers
Regenerated Steam Powered Boiler
STEAMER OPERATION
Gas Powered Steam Boiler
Electrically Powered Steam Boiler
4.Manual blowdown
Direct Steam Powered Cooker
Boiler Blowdown and Steamer Shut off
3.Automatic blowdown
3. Automatic
2. Standard
4.Prevent
CABINET BASE BOILER CONTROLS
COMPONENT FUNCTION
Handhole Cover Assembly
COOKING COMPARTMENT CONTROLS
COMPONENT LOCATIONS
REMOVAL AND REPLACEMENT OF PARTS
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Prevent
Solid State
WATER LEVEL GAUGE ASSEMBLY
CYCLING AND HIGH LIMIT PRESSURE SWITCHES
GAS AND ELECTRIC MODELS
HIGH LIMIT THERMOSTAT
BOILER ASSEMBLY
GAS COMBINATION CONTROL VALVE
PILOT AND THERMOCOUPLE ASSEMBLY GAS MODELS
Door Screw Nut
Gasket
Door and Bushing
REGENERATED STEAM MODELS
HEATER CONTACTORS
STEAM COIL
HEATING ELEMENTS
BOILER
SERVICE PROCEDURES AND ADJUSTMENTS
Descaler
Deliming Only Models with Deliming Port Assembly
WATER LEVEL CONTROLS TEST
GAS AND ELECTRIC MODELS
CYCLING AND HIGH LIMIT PRESSURE SWITCHES
Water Level Probes
FILL AND COLD WATER SOLENOID VALVES
COMPARTMENT PRESSURE ADJUSTMENT
Disassembly
BOILER BLOWDOWN DRAIN SOLENOID VALVE
BOILER NOT FILLING WITH WATER
HIGH LIMIT THERMOSTAT
1.All Models With Boiler
BOILER SLOW TO PRESSURIZE
A. Newer Models
B.Older Models
4.Direct Steam Models
INLET WATER STRAINER
PILOT AND THERMOCOUPLE ASSEMBLY GAS MODELS
3.Electric Models
Check the thermocouple output voltage as follows
“PILOT AND THERMOCOUPLE ASSEMBLY GAS MODELS” in
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Inspection
GAS BURNERS
AUTOMATIC IGNITION SYSTEMS GAS MODELS
Air Shutter Adjustment
Spark Ignition Control Test
Terminals
GAS MANIFOLD PRESSURE ADJUSTMENT
HEATING ELEMENTS
DIRECT STEAM MODELS
REGENERATED STEAM OLDER MODELS
HEATER CONTACTORS
NUMBER
2.Older Models
THERMAL SWITCH - PREVENT AND AUTOMATIC MODELS
WATER LEVEL GAUGE ASSEMBLY
1.Newer Models
STEAM GATE VALVES
WATER LEVEL CONTROLS
ELECTRICAL OPERATION
Solid State - Auxiliary Low Level Cut-Off
VL SERIES STEAMER - ELECTRICAL OPERATION
Electro Mechanical - Auxiliary Low Level Cut-Off
GAS MODELS
SEQUENCE OF OPERATION
4.Water reaches LL low level probe
A.Power to terminal 9 on the water level control
A.Power to terminal 6 on water level control
VL SERIES STEAMER - ELECTRICAL OPERATION
Water Refill After Initial Fill
Cook Cycle
Boiler Blowdown/drain
ELECTRIC MODELS
INITIAL FILL AND PREHEAT
COOK CYCLE
BOILER BLOWDOWN/DRAIN
WATER REFILL AFTER INITIAL FILL
VL SERIES STEAMER - ELECTRICAL OPERATION
PAGE PURPOSELY LEFT BLANK
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Manual Ignition, Standard Controls
SCHEMATICS, GAS STEAMERS, BOILER CONTROLS
Electronic Ignition, Standard Controls
VL SERIES STEAMER - ELECTRICAL OPERATION
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Manual Ignition, CSD-1Code Controls
VL SERIES STEAMER - ELECTRICAL OPERATION
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Electronic Ignition, CSD-1Code Controls
VL SERIES STEAMER - ELECTRICAL OPERATION
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VL SERIES STEAMER - ELECTRICAL OPERATION
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VL SERIES STEAMER - ELECTRICAL OPERATION
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VL SERIES STEAMER - ELECTRICAL OPERATION
Electronic Ignition, Standard Controls
VL SERIES STEAMER - ELECTRICAL OPERATION
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VL SERIES STEAMER - ELECTRICAL OPERATION
Manual Ignition, CSD-1Code Controls
VL SERIES STEAMER - ELECTRICAL OPERATION
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VL SERIES STEAMER - ELECTRICAL OPERATION
Electronic Ignition, CSD-1Code Controls
VL SERIES STEAMER - ELECTRICAL OPERATION
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VL SERIES STEAMER - ELECTRICAL OPERATION
Auto Blowdown, Standard Controls
SCHEMATICS, ELECTRIC STEAMERS, BOILER CONTROLS
Auto Blowdown, Cal-CodeControls
VL SERIES STEAMER - ELECTRICAL OPERATION
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VL SERIES STEAMER - ELECTRICAL OPERATION
Standard and Cal-Code/CSD-1Controls
WIRING DIAGRAMS, ELECTRIC HEATER CIRCUITS
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VL SERIES STEAMER - ELECTRICAL OPERATION
Manual Blowdown Older Models
VL SERIES STEAMER - ELECTRICAL OPERATION
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Auto Blowdown Older Models
VL SERIES STEAMER - ELECTRICAL OPERATION
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Prevent
VL SERIES STEAMER - ELECTRICAL OPERATION
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Automatic
VL SERIES STEAMER - ELECTRICAL OPERATION
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Standard
VL SERIES STEAMER - ELECTRICAL OPERATION
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Manual
VL SERIES STEAMER - ELECTRICAL OPERATION
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POSSIBLE CAUSES
TROUBLESHOOTING
SYMPTOM
ALL MODELS
VL SERIES STEAMER - TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSES
VL SERIES STEAMER - TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSES
SYMPTOM
GAS MODELS ONLY
POSSIBLE CAUSES
VL SERIES STEAMER - TROUBLESHOOTING