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
GENERAL
INTRODUCTION
WATER CONDITIONING
Special
SPECIFICATIONS
TOOLS
Standard
Page 6 of
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
Page 15 of
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
Gasket
Door Screw Nut
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
CYCLING AND HIGH LIMIT PRESSURE SWITCHES
GAS AND ELECTRIC MODELS
Water Level Probes
COMPARTMENT PRESSURE ADJUSTMENT
FILL AND COLD WATER SOLENOID VALVES
Disassembly
BOILER NOT FILLING WITH WATER
BOILER BLOWDOWN DRAIN SOLENOID VALVE
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
“PILOT AND THERMOCOUPLE ASSEMBLY GAS MODELS” in
Check the thermocouple output voltage as follows
Page 30 of
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
ELECTRIC MODELS
Boiler Blowdown/drain
INITIAL FILL AND PREHEAT
COOK CYCLE
BOILER BLOWDOWN/DRAIN
WATER REFILL AFTER INITIAL FILL
PAGE PURPOSELY LEFT BLANK
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 48 of
Manual Ignition, Standard Controls
SCHEMATICS, GAS STEAMERS, BOILER CONTROLS
VL SERIES STEAMER - ELECTRICAL OPERATION
Electronic Ignition, Standard Controls
Page 50 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Manual Ignition, CSD-1Code Controls
Page 51 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Electronic Ignition, CSD-1Code Controls
Page 52 of
Page 53 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 54 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 55 of
VL SERIES STEAMER - ELECTRICAL OPERATION
VL SERIES STEAMER - ELECTRICAL OPERATION
Electronic Ignition, Standard Controls
Page 56 of
Page 57 of
VL SERIES STEAMER - ELECTRICAL OPERATION
VL SERIES STEAMER - ELECTRICAL OPERATION
Manual Ignition, CSD-1Code Controls
Page 58 of
Page 59 of
VL SERIES STEAMER - ELECTRICAL OPERATION
VL SERIES STEAMER - ELECTRICAL OPERATION
Electronic Ignition, CSD-1Code Controls
Page 60 of
Page 61 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Auto Blowdown, Standard Controls
SCHEMATICS, ELECTRIC STEAMERS, BOILER CONTROLS
VL SERIES STEAMER - ELECTRICAL OPERATION
Auto Blowdown, Cal-CodeControls
Page 63 of
Page 64 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 65 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 66 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 67 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 68 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 69 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 70 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 71 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 72 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 73 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 74 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Page 75 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Standard and Cal-Code/CSD-1Controls
WIRING DIAGRAMS, ELECTRIC HEATER CIRCUITS
Page 77 of
VL SERIES STEAMER - ELECTRICAL OPERATION
VL SERIES STEAMER - ELECTRICAL OPERATION
Manual Blowdown Older Models
Page 78 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Auto Blowdown Older Models
Page 79 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Prevent
Page 80 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Automatic
Page 81 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Standard
Page 82 of
VL SERIES STEAMER - ELECTRICAL OPERATION
Manual
Page 83 of
POSSIBLE CAUSES
TROUBLESHOOTING
SYMPTOM
ALL MODELS
SYMPTOM
VL SERIES STEAMER - TROUBLESHOOTING
POSSIBLE CAUSES
SYMPTOM
VL SERIES STEAMER - TROUBLESHOOTING
POSSIBLE CAUSES
GAS MODELS ONLY
SYMPTOM
POSSIBLE CAUSES
VL SERIES STEAMER - TROUBLESHOOTING
