HygroMatik DemiLine 12, Руководство пользователя

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Page 12
At the standard setting, the inlet solenoid valve (14) opens when
the water level remains below “humidification” level for 10 sec-
onds. The water level then rises again to “humidification” level.
For more information, also see section “Exploded View.”
The steam cylinder consists of two flanged plastic halves bolted
together with stainless steel nuts and bolts and sealed with an o-
ring. Up to 3 heaters are installed in the top half. The cylinder
can be opened easily for inspection. Any necessary replacement
of heaters or temperature cut-outs can be done easily.
The heater elements are equipped with a mechanical high tem-
perature safety. This mechanism provides a redundant safety
system in the event of excessively low water levels (“Dry Run”).
Although fully demineralised water contains only traces of resid-
ual minerals, operating experience has shown periodic full blow-
down of the cylinder contents increases the time interval
between cylinder inspections and lengthens the life cycle of
heater elements. A heavy-duty waste water pump (10) is there-
fore used periodically to flush out any accumulated residual non-
volatile matter.
Steam production is interrupted only for a few minutes.
Position Description
6 Level control
8 Heater element
9 Steam cylinder
10 Waste water pump
14 Water solenoid valve