HygroMatik SteamKit H, Manual

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Page 10
4. Functional Description and
Device Composition
4.1 Mode of Action
The immersion heater principle
Depending on the output rating, one or three
heater elements are arranged within a closed
cylinder. The cylinder is filled with either tap
water of varying quality, fully desalinated
water or partially softened water. The heat
introduced by the heater element(s) heats up
the cylinderwater to approx. 100 °C, trans-
forming the water into steam with a tempera-
ture of approx. 100 °C and very little positive
pressure (so called pressureless steam).
This steam is virtually mineral-free and germ-
free. When fully desalinated water is used,
the cylinder water is almost totally clear of
minerals. This situation guarantees a long
lifetime of the cylinder and the heater ele-
ment(s), since virtually no hardeners will fall-
out and no mineral deposits will occur.
Such, the number of inspections and/or
maintenance operations required will be
reduced to a minimum.
When tap water is used for operation, some
of the minerals dissolved in the water are
likely to settle in the cylinder in form of solids
of various compositions. However, most of
the solids are flushed out by cyclic blow-
down with the help of a heavy-duty blow-
down pump.
4.2 Mechanical Construction
The kits are designed for wall mounting or
standing on a horizontal, level surface.
The composition of a kit with 1 heater ele-
ment is shown in the fig. following hereafter.
For maintenance purposes, the steam cylin-
der is separable in the middle.
Steam cylinder
Solenoid valve
Blow-down pump
Steam hose
Wastewater
M4 thread for
grounding screw
Elbow
Cylinder base
Draining hose
Console
Capillary tube
Thermoswitch
Heater element
adaptor
Control cylinder
connection
Supply water
connection