Vulcan-Hart VL2GAS, VL3GMS Boiler not Filling with Water, Boiler Blowdown Drain Solenoid Valve

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VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS

HIGH LIMIT THERMOSTAT

WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS BEING SERVICED.

Remove thermostat (bi-metallic disk type) as outlined under “HIGH LIMIT THERMOSTAT” in

“REMOVAL AND REPLACEMENT OF PARTS”. Inspect the temperature sensing side of thermostat for corrosion or rust. Clean mounting and thermostat surfaces before remounting or replacing. A good metal-to-metal contact is essential for proper functioning of the thermostat. This service must be performed at least once a year. If thermostat mating surface can not be throughly cleaned or is severely pitted and rusted, then replace and check for proper operation.

BOILER NOT FILLING WITH

WATER

Ensure that water to the steamer is turned on, then turn power switch ON. After approximately 10 minutes, if no water is observed in the water level gauge sight glass, then check for a problem with the boiler fill solenoid valve, water level control(s) or the water level probes. See “WATER LEVEL CONTROL TEST”. Also, ”water hammerin g” in the supply line, in conjunction with a check valve can cause a high water pressure pocket in the water line to the fill solenoid valve. The fill solenoid valve will not be able to overcome this pressure and operate to supply the boiler with water. Shut off the water supply and relieve the pressure in the line. Turn the water supply back on and check for proper operation.

NOTE: To eliminate this problem, the customer must install a “water hammer suppression device” in the supply line to the boiler.

WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS BEING SERVICED.

Scalants may be covering the water level control probe giving a false indication of a sufficient water level in the boiler. Remove and thoroughly clean the water level probes to remove scalants and lime build up. Also, Check through the probe socket opening in the top of the canister assembly for the presence of water.

Water must drain from the probe canister and if in doubt, pour water into the canister and observe that it drains quickly.

If water fails to drain from the canister, remove the cover or canister assembly and clean. These conditions indicate extremely poor water quality being supplied to the boiler and/or boiler clean out and deliming has not been performed.

The water condition must be cleared up immediately with a proper water conditioner to avoid further problems with the steamer. Re-install the water level probes and canister assembly (if applicable). Perform a boiler inspection, clean-out and deliming procedure as outlined under “BOILER”. Check for proper operation.

Water may be draining through an open boiler blowdown solenoid valve as quickly as it’s fed to the boiler. Loose wiring, a burned out coil or particles of scale trapped in the valve seat may prevent the valve from closing.

Newer steamer models use a plunger type rod that raises and lowers to permit steam/water flow out of boiler. If debris has accumulated around the water orifice, the plunger may not seat properly to close off the opening. If this symptom is suspect, remove the solenoid as outlined in “FILL AND COLD WATER SOLENOID VALVES”. Remove any debris found on sealing surfaces, reassemble and install. If the solenoid valve still does not function properly, replace it with a new valve and check for proper operation.

Older steamer models have a movable blade and when closed, the blade reacts as a guillotine that should be free to move fully down into the valve pocket (projection at bottom of valve) so that the pierced hole in the blade aligns perfectly with the body opening. If debris has accumulated in the bottom of the valve pocket, then the blade will not move into the pocket completely. If this symptom is suspect, remove the solenoid as outlined in “FILL

AND COLD WATER SOLENOID VALVES”.

NOTE: On this valve body, remove the two assembly bolts holding the brass body together and remove the loose internal parts. Remove any debris found on sealing surfaces, reassemble and install. If the solenoid valve still does not function properly, replace it with a new valve and check for proper operation.

BOILER BLOWDOWN DRAIN

SOLENOID VALVE

The water contained in the boiler, being under pressure, should be blown through this valve and be noticeably visible exhausting out the steamer drain. Daily boiler blowdown is essential to proper operation and component life by removing sediment and scalants that may be lodged in the chamber of the boiler.

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Contents VL Boiler Base Series Convection Steamers Table of Contents VL Series Steamers Water Conditioning IntroductionTools SpecificationsElectric Steamers Gas SteamersSteamer Operation Gas Powered Steam BoilerElectrically Powered Steam Boiler Regenerated Steam Powered BoilerManual blowdown Direct Steam Powered CookerBoiler Blowdown and Steamer Shut off Automatic blowdownStandard Automatic Prevent Power Switch Water Level Gauge AssemblyCycling Pressure Switch High Limit Pressure SwitchCheck Valve Handhole Cover AssemblyDelime Port Assembly Boiler Pressure GaugeCooking Light Red Compartment Power SwitchCooking Timer Thermal Switch Load CompensatorRemoval and Replacement of Parts VL Series Steamers Removal and Replacement of Parts Cooking Compartment Controls Component Configurations Electro Mechanical Water Level Gauge AssemblyWater Level Controls LOW Level CUT OFF and Differential Solid StateBoiler Assembly High Limit Thermostat Boiler Fill and Cold Water Condenser Solenoid Valves GAS Combination Control ValveDoor and Bushing Compartment Gasket and Door Screw NUT, Door and BushingsGasket Door Screw NutHeater Contactors Steam CoilHeating Elements Clean-Out All Boiler Models BoilerInspection Deliming Only Models with Deliming Port Assembly Water Level Controls Test Solid State Low level Cut-Off & Differential ControlElectro Mechanical Low level Cut-Off & Differential Control Water Level Probes Compartment Pressure Adjustment DisassemblyFill and Cold Water Solenoid Valves Boiler Blowdown Drain Solenoid Valve Boiler not Filling with WaterAll Models With Boiler Boiler Slow to PressurizeNewer Models Older ModelsRegenerated Steam Coil Steamers Inlet Water StrainerElectric Models Direct Steam ModelsVL Series Steamer Service Procedures and Adjustments Air Shutter Adjustment GAS BurnersAutomatic Ignition Systems GAS Models Spark Ignition Control Test TerminalsGAS Manifold Pressure Adjustment Regenerated Steam Older Models Heater Contactors Direct Steam ModelsVL Series Steamer Service Procedures and Adjustments Thermal Switch Prevent Automatic Models Steam Gate Valves Water Level Controls Electrical OperationSolid State Auxiliary Low Level Cut-Off Electro Mechanical Low level Cut-Off & Differential Control Electro Mechanical Auxiliary Low Level Cut-Off Initial Fill and Preheat Sequence of OperationVL Series Steamer Electrical Operation Water Refill After Initial Fill Cook CycleBoiler Blowdown/drain Electric ModelsCook Cycle Water Refill After Initial Fill Purposely Left Blank Manual Ignition, Standard Controls Electronic Ignition, Standard Controls Manual Ignition, CSD-1 Code Controls Electronic Ignition, CSD-1 Code Controls VL Series Steamer Electrical Operation Manual Ignition, Standard Controls VL Series Steamer Electrical Operation Electronic Ignition, Standard Controls VL Series Steamer Electrical Operation Manual Ignition, CSD-1 Code Controls VL Series Steamer Electrical Operation Electronic Ignition, CSD-1 Code Controls VL Series Steamer Electrical Operation Auto Blowdown, Standard Controls Auto Blowdown, Cal-Code Controls Auto Blowdown, Standard Controls contactor 1 std VL Series Steamer Electrical Operation Auto Blowdown, Standard Controls contactors 2 std VL Series Steamer Electrical Operation Manual Blowdown, Cal-Code Controls contactors 1 std aux VL Series Steamer Electrical Operation Auto Blowdown, Cal-Code Controls contactors 1 std aux VL Series Steamer Electrical Operation Auto Blowdown, Cal-Code Controls contactors 2 std aux VL Series Steamer Electrical Operation Manual Blowdown, Cal-Code Controls contactors 2 std aux VL Series Steamer Electrical Operation Standard and Cal-Code/CSD-1 Controls See Schematic and Wiring Diagrams Compartment Controls Manual Blowdown Older Models Auto Blowdown Older Models Schematic and Wiring Diagrams Compartment Controls Automatic Standard Manual ALL Models TroubleshootingContacts not closing to power boiler fill solenoid Schematic and Wiring Diagrams GAS Models only Symptom Possible CausesPilot not adjusted correctly. See Pilot

VL2GPS, VL3GPS, VL3GSS, VL2GSS, VL2GAS specifications

Vulcan-Hart is well-known in the commercial cooking equipment industry, providing durable and efficient products that cater to the needs of restaurants and foodservice operations. Their line of griddles, namely the VL3GAS, VL3GPS, VL3GMS, VL2GAS, and VL2GPS, showcases their commitment to high-quality performance and innovative cooking technologies.

The Vulcan-Hart VL3GAS is a gas griddle, featuring a robust stainless steel construction that ensures longevity and resilience in a bustling kitchen environment. It offers a smooth, hot cooking surface that allows for optimal heat retention and distribution, ensuring that food cooks evenly. With a 3/4-inch thick steel plate, it provides excellent thermal conductivity, making it ideal for high-volume cooking. This model is designed with easy-to-use controls, which makes it convenient for chefs to operate.

The VL3GPS model is a gas-powered griddle that comes equipped with a patented grease management system, which aids in maintaining a cleaner cooking environment. This system helps to separate grease from food and minimizes flare-ups, enhancing safety during cooking. Additionally, the griddle features a temperature control that allows chefs to set precise cooking temperatures, ensuring consistent results.

Moving to the VL3GMS, this model introduces increased versatility with its combination of gas and optional electric features. It’s tailored for establishments that require flexibility in their cooking strategies. The VL3GMS is also designed with a spacious cooking surface, making it suitable for preparing a wide array of dishes simultaneously.

The VL2GAS is a two-burner gas griddle that is specifically tailored for smaller kitchen operations or those with limited space. Its compact design does not compromise on performance, still providing a durable cooking surface and reliable temperature control. This model is ideal for smaller cafes or food trucks where space is at a premium.

Lastly, the VL2GPS complements the VL2GAS with its grease management system. This enhances hygiene and ensures that cooking remains efficient and safe. Both VL2 models offer easy startup and shutdown procedures, making them user-friendly for chefs working in fast-paced environments.

Overall, the Vulcan-Hart VL series griddles combine quality construction, innovative technology, and efficient design. Whether it’s the three-burner or two-burner options, these griddles meet the demands of commercial kitchens, providing reliable cooking solutions that serve the dynamic needs of the foodservice industry.
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