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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Vulcan-Hart VL3GMS, VL2GMS, VL3GAS, VL2GAS Water Level Controls Test, Solid State Low level Cut-Off & Differential Control
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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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