Manuals / Vulcan-Hart / Household Appliance / Boiler

Vulcan-Hart VL3GMS, VL2GMS, VL3GAS, VL2GAS, VL2GSS, VL3GSS, VL3GPS, VL2GPS service manual Prevent

Models: VL2GPS VL3GPS VL3GSS VL2GSS VL2GAS VL3GAS VL2GMS VL3GMS

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Prevent

VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS

COOKING COMPARTMENT CONTROLS - COMPONENT CONFIGURATIONS

1.	Prevent	thermal switch, inlet steam gate valve, steam exhaust solenoid
	(shown above)	valve, steam control arm solenoid, timer, buzzer and power switch
		with light. Does not use a steam trap.

2.	Automatic	same as prevent except does not include steam exhaust solenoid
		valve but does include an exhaust steam gate valve and two steam
		traps.

3.	Standard	same as automatic except does not include thermal switch.

4.	Manual	manual and exhaust steam gate valves and a manual timer.
		Includes two steam traps.

Page 16 of 88

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Vulcan-Hart VL3GMS, VL2GMS, VL3GAS, VL2GAS, VL2GSS, VL3GSS, VL3GPS, VL2GPS service manual Prevent

Contents

VL BOILER BASE SERIES CONVECTION STEAMERS SERVICE MANUALTABLE OF CONTENTS Schematics, Gas Steamers, Boiler Controls Wiring Diagrams, Gas Steamers, Boiler ControlsSchematics, Electric Steamers, Boiler Controls Wiring Diagrams, Electric Heater CircuitsINTRODUCTION GENERALWATER CONDITIONING SPECIFICATIONS TOOLSStandard SpecialVL SERIES STEAMERS - GENERAL Gas SteamersElectric Steamers Page 6 ofSTEAMER OPERATION Gas Powered Steam BoilerElectrically Powered Steam Boiler Regenerated Steam Powered BoilerDirect Steam Powered Cooker Boiler Blowdown and Steamer Shut off3.Automatic blowdown 4.Manual blowdown2. Standard 3. Automatic4.Prevent COMPONENT FUNCTION CABINET BASE BOILER CONTROLSHandhole Cover Assembly COOKING COMPARTMENT CONTROLS REMOVAL AND REPLACEMENT OF PARTS COMPONENT LOCATIONSPage 15 of Prevent WATER LEVEL GAUGE ASSEMBLY CYCLING AND HIGH LIMIT PRESSURE SWITCHESGAS AND ELECTRIC MODELS Solid StateBOILER ASSEMBLY HIGH LIMIT THERMOSTATPILOT AND THERMOCOUPLE ASSEMBLY GAS MODELS GAS COMBINATION CONTROL VALVEDoor Screw Nut GasketDoor and Bushing HEATER CONTACTORS STEAM COILHEATING ELEMENTS REGENERATED STEAM MODELSSERVICE PROCEDURES AND ADJUSTMENTS BOILERDeliming Only Models with Deliming Port Assembly DescalerWATER LEVEL CONTROLS TEST GAS AND ELECTRIC MODELS CYCLING AND HIGH LIMIT PRESSURE SWITCHESWater Level Probes FILL AND COLD WATER SOLENOID VALVES COMPARTMENT PRESSURE ADJUSTMENTDisassembly BOILER BLOWDOWN DRAIN SOLENOID VALVE BOILER NOT FILLING WITH WATERHIGH LIMIT THERMOSTAT BOILER SLOW TO PRESSURIZE A. Newer ModelsB.Older Models 1.All Models With BoilerINLET WATER STRAINER PILOT AND THERMOCOUPLE ASSEMBLY GAS MODELS3.Electric Models 4.Direct Steam ModelsCheck the thermocouple output voltage as follows “PILOT AND THERMOCOUPLE ASSEMBLY GAS MODELS” inPage 30 of GAS BURNERS AUTOMATIC IGNITION SYSTEMS GAS MODELSAir Shutter Adjustment InspectionTerminals Spark Ignition Control TestGAS MANIFOLD PRESSURE ADJUSTMENT DIRECT STEAM MODELS REGENERATED STEAM OLDER MODELSHEATER CONTACTORS HEATING ELEMENTSNUMBER THERMAL SWITCH - PREVENT AND AUTOMATIC MODELS WATER LEVEL GAUGE ASSEMBLY1.Newer Models 2.Older ModelsSTEAM GATE VALVES ELECTRICAL OPERATION WATER LEVEL CONTROLSSolid State - Auxiliary Low Level Cut-Off VL SERIES STEAMER - ELECTRICAL OPERATION Electro Mechanical - Auxiliary Low Level Cut-Off SEQUENCE OF OPERATION GAS MODELSA.Power to terminal 9 on the water level control A.Power to terminal 6 on water level controlVL SERIES STEAMER - ELECTRICAL OPERATION 4.Water reaches LL low level probeCook Cycle Water Refill After Initial FillBoiler Blowdown/drain ELECTRIC MODELSINITIAL FILL AND PREHEAT COOK CYCLE WATER REFILL AFTER INITIAL FILL BOILER BLOWDOWN/DRAINVL SERIES STEAMER - ELECTRICAL OPERATION PAGE PURPOSELY LEFT BLANKPage 48 of SCHEMATICS, GAS STEAMERS, BOILER CONTROLS Manual Ignition, Standard ControlsElectronic Ignition, Standard Controls VL SERIES STEAMER - ELECTRICAL OPERATIONPage 50 of Manual Ignition, CSD-1Code Controls VL SERIES STEAMER - ELECTRICAL OPERATIONPage 51 of Electronic Ignition, CSD-1Code Controls VL SERIES STEAMER - ELECTRICAL OPERATIONPage 52 of VL SERIES STEAMER - ELECTRICAL OPERATION Page 53 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 54 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 55 ofElectronic Ignition, Standard Controls VL SERIES STEAMER - ELECTRICAL OPERATIONPage 56 of VL SERIES STEAMER - ELECTRICAL OPERATION Page 57 ofManual Ignition, CSD-1Code Controls VL SERIES STEAMER - ELECTRICAL OPERATIONPage 58 of VL SERIES STEAMER - ELECTRICAL OPERATION Page 59 ofElectronic Ignition, CSD-1Code Controls VL SERIES STEAMER - ELECTRICAL OPERATIONPage 60 of VL SERIES STEAMER - ELECTRICAL OPERATION Page 61 ofSCHEMATICS, ELECTRIC STEAMERS, BOILER CONTROLS Auto Blowdown, Standard ControlsAuto Blowdown, Cal-CodeControls VL SERIES STEAMER - ELECTRICAL OPERATIONPage 63 of VL SERIES STEAMER - ELECTRICAL OPERATION Page 64 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 65 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 66 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 67 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 68 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 69 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 70 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 71 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 72 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 73 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 74 ofVL SERIES STEAMER - ELECTRICAL OPERATION Page 75 ofWIRING DIAGRAMS, ELECTRIC HEATER CIRCUITS Standard and Cal-Code/CSD-1ControlsVL SERIES STEAMER - ELECTRICAL OPERATION Page 77 ofManual Blowdown Older Models VL SERIES STEAMER - ELECTRICAL OPERATIONPage 78 of Auto Blowdown Older Models VL SERIES STEAMER - ELECTRICAL OPERATIONPage 79 of Prevent VL SERIES STEAMER - ELECTRICAL OPERATIONPage 80 of Automatic VL SERIES STEAMER - ELECTRICAL OPERATIONPage 81 of Standard VL SERIES STEAMER - ELECTRICAL OPERATIONPage 82 of Manual VL SERIES STEAMER - ELECTRICAL OPERATIONPage 83 of TROUBLESHOOTING SYMPTOMALL MODELS POSSIBLE CAUSESVL SERIES STEAMER - TROUBLESHOOTING SYMPTOMPOSSIBLE CAUSES VL SERIES STEAMER - TROUBLESHOOTING SYMPTOMPOSSIBLE CAUSES SYMPTOM GAS MODELS ONLYPOSSIBLE CAUSES VL SERIES STEAMER - TROUBLESHOOTING