Water Quality

Service and Parts Manual

MODEL VSX9000 ELECTRIC COUNTERTOP

CONVECTION STEAMER

PLEASE KEEP THIS MANUAL

GENERAL

Your Vulcan Steamer is a one-compartment pressureless steam cooker that has been factory assembled and tested to provide for easy installation. It has been factory set when on to maintain water temperature during the ready phase at approximately 205°F (just below water boiling point).

Vulcan steamers are produced with quality workmanship and material. Proper installation, usage and maintenance of your steamer will result in many years of satisfactory performance.

The manufacturer suggests that you thoroughly read this entire manual and carefully follow all of the instructions provided.

The fact that a water supply is potable is no guarantee that it is suitable for steam generation. Your water supply must be within these general guidelines:

TOTAL DISSOLVED SOLIDS . . . . . . . . . Less than 60 PPM TOTAL ALKALINITY . . . . . . . . . . . . . . . . . Less than 20 PPM SILICA . . . . . . . . . . . . . . . . . . . . . . . . . . . . Less than 13 PPM CHLORIDE . . . . . . . . . . . . . . . . . . . . . . . . Less than 30 PPM pH FACTOR . . . . . . . . . . . . . . . . . . . . . . . 7-8

Other factors affecting steam generation are iron content, amount of chloridation and dissolved gases. Water supplies vary from state to state and from locations within a state. Therefore, it is necessary that the local water treatment specialist be consulted before the installation of any steam generating equipment.

Untreated water contains scale producing minerals which can precipitate onto the surfaces in the boiler. Due to the temperatures in the boiler, the minerals can bake onto the surfaces and components. This can result in early component failure and reduced product life.

Mineral scale on components causes several problems:

1.The surfaces of the heating devices become coated with scale, reducing the heat transfer efficiency. This can produce hot spots on the heating elements and result in premature failure.

2.The water level probes become coated with scale. Scale will bridge across the probe insulator from the metal extension which senses the water level in the boiler shell. Once this scale becomes wet, the water level control is unable to maintain the proper water level in the boiler. This situation may cause an electric heating element to fail as a result of the element not being adequately covered by water.

Strainers and filters will NOT remove minerals from the water.

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