Nordmann ES4 - Functional Description

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3.4 Functional description
The steam humidier Nordmann ES4 is a pressureless steam generator
that utilizes an electrode heating. The steam humidier Nordmann ES4 is
designed for air humidication via a steam distributor (steam distribution
pipe, fan unit or steam distribution system MultiPipe).
Steam distribution pipe
Condensate hose
with siphon
Steam hose
Water cup
Overow hose
Filling hose
Water supply hose
Inlet valve
Base tub
Drain valve
Steam cylinder
Electrodes
Level sensor
Control board
Power board
Unit switch
Main
contactor
Current sensor
Steam generation
Any time steam is requested, the electrodes are supplied with voltage via
main contactor. Simultaneously, the inlet valve opens and water enters the
steam cylinder from the bottom via water cup and supply line. As soon as the
electrodes come in contact with the water, current begins to ow between
the electrodes, eventually heating and evaporating the water. The more the
electrode surface is exposed to water, the higher is the current consumption
and thus the steam capacity.