Vulcan-Hart VL3GMS, VL2GMS, VL3GAS, VL2GAS, VL2GSS, VL3GSS, VL3GPS, VL2GPS Water Level Controls Test

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VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS

WATER LEVEL CONTROL(S)

TEST

Loose electrical connections may prevent the heat from coming on or may cause the boiler to overfill. An accumulation of lime scale on or near the water level sensing probes may cause them to retain water (moist) on the probe surface and give a false reading. Also, a cracked or damaged insulator may give a false reading. These conditions may prevent the boiler from filling or cause dry firing. Dry firing will result in damage to the heating elements on electric models or to the boiler on gas or electric models.

WARNING: THE FOLLOWING STEPS REQUIRE POWER TO BE APPLIED TO THE UNIT DURING THE TEST. USE EXTREME CAUTION AT ALL TIMES.

Solid State - Low level Cut-Off & Differential Control

1.Turn the power switch ON.

2.Ensure that water is filling the boiler.

A.Confirm that water supply valve(s) are turned on.

B.Observe boiler water level in the water level gauge. If empty, boiler should fill in approximately 11 minutes.

3.Check the voltage across terminals L1 & L2 on the board. Meter should read 120VAC.

A.If voltage is correct then the high level (HL) relay should energize, closing HL-3 contacts and the HL LED should light up. The boiler fill solenoid should then energize and start filling the boiler. Verify boiler fill solenoid valve is receiving 120VAC and water is flowing through it.

B.If boiler fill solenoid is receiving power but no water is flowing, inspect fill solenoid for malfunction or valve for clogged ports. If solenoid is bad or ports can not be cleaned, then replace boiler fill solenoid and check for proper operation.

C.If boiler fill solenoid is not receiving power and the electrical connections have been checked, then the HL relay is not being energized or the HL-3 contacts are not closing. Replace water level control board and check for proper operation.

4.If boiler is filling properly, when the water level reaches the low level cut-off (LLCO) probe, LLCO relay should energize closing LLCO-2 contacts, heat source should come on (standard models only) and LLCO LED will light.

5.Once the water level reaches the high level (HL) probe, the inverse latching relay of the board (solid state) should energize and lock through the low level probe (LL) and ILR-1 contacts. With ILR-2 contacts open, the HL relay is de-energized and HL LED goes out. With the HL-3 contacts open, the boiler fill solenoid should de-energize and stop the boiler fill.

6.If water is in the boiler but is not being detected by the water level probes, the probes may need cleaned and/or boiler delimed. See “Water Level Probes” as outlined below for inspecting and cleaning of probes and “BOILER” for a procedure on boiler inspection, clean-out and deliming.

7.Turn the power switch OFF and disconnect the lead wire from each probe. Check the probes as outlined below.

A.With an ohmmeter, check between the probe terminal and boiler shell. An open circuit should be present when the boiler is empty. If resistance is present, remove and inspect the probes as outlined below under “Water Level Probes”. When the boiler is full of water, a resistance reading should be measurable between the probes and boiler.

NOTE: The actual resistance reading will depend on water quality and probe condition.

8.After performing steps 1-5A and verifying the water level control boards operation, if the control is not functioning as described, then replace it and check for proper operation.

Electro Mechanical - Low level Cut-Off & Differential Control

WARNING: THE FOLLOWING STEPS REQUIRE POWER TO BE APPLIED TO THE UNIT DURING THE TEST. USE EXTREME CAUTION AT ALL TIMES.

1.Ensure that water is filling the boiler.

A.Confirm that water supply valve(s) are turned on.

B.Observe boiler water level in the water level gauge.

C.Verify boiler fill solenoid valve is receiving 120VAC and water is flowing through it.

2.Check for correct voltage being applied to the low level and differential water level controls.

A.Turn the water supply valve off then turn the power switch ON. Check the input voltage across terminals 1 & 2. Meter should read 120VAC. If voltage is correct proceed to step 2B. If voltage is incorrect, find the source of the problem and repeat this step.

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Contents VL Boiler Base Series Convection Steamers Table of Contents VL Series Steamers Introduction Water ConditioningSpecifications ToolsGas Steamers Electric SteamersGas Powered Steam Boiler Electrically Powered Steam BoilerRegenerated Steam Powered Boiler Steamer OperationDirect Steam Powered Cooker Boiler Blowdown and Steamer Shut offAutomatic blowdown Manual blowdownStandard Automatic Prevent Water Level Gauge Assembly Cycling Pressure SwitchHigh Limit Pressure Switch Power SwitchHandhole Cover Assembly Delime Port AssemblyBoiler Pressure Gauge Check ValveCompartment Power Switch Cooking TimerThermal Switch Load Compensator Cooking Light RedRemoval and Replacement of Parts VL Series Steamers Removal and Replacement of Parts Cooking Compartment Controls Component Configurations Water Level Gauge Assembly Water Level Controls LOW Level CUT OFF and DifferentialSolid State Electro MechanicalBoiler Assembly High Limit Thermostat GAS Combination Control Valve Boiler Fill and Cold Water Condenser Solenoid ValvesCompartment Gasket and Door Screw NUT, Door and Bushings GasketDoor Screw Nut Door and BushingHeater 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 not Filling with Water Boiler Blowdown Drain Solenoid ValveBoiler Slow to Pressurize Newer ModelsOlder Models All Models With BoilerInlet Water Strainer Electric ModelsDirect Steam Models Regenerated Steam Coil SteamersVL Series Steamer Service Procedures and Adjustments Air Shutter Adjustment GAS BurnersAutomatic Ignition Systems GAS Models Terminals Spark Ignition Control TestGAS Manifold Pressure Adjustment Direct Steam Models Regenerated Steam Older Models Heater ContactorsVL Series Steamer Service Procedures and Adjustments Thermal Switch Prevent Automatic Models Steam Gate Valves Electrical Operation Water Level ControlsSolid State Auxiliary Low Level Cut-Off Electro Mechanical Low level Cut-Off & Differential Control Electro Mechanical Auxiliary Low Level Cut-Off Sequence of Operation Initial Fill and PreheatVL Series Steamer Electrical Operation Cook Cycle Water Refill After Initial FillElectric Models Boiler Blowdown/drainCook 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 Troubleshooting ALL ModelsContacts not closing to power boiler fill solenoid Schematic and Wiring Diagrams Symptom Possible Causes GAS Models onlyPilot 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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