HydroMatik HeaterCompact, Manual

Page: 12 / 78

Page 12
4.2 Installation and Method of Operation
By pressing the control switch („Pos. I”) the humidifier is turned
on. Wh en th e hygrost at or controller signals a demand for
humidification, the inlet solenoid valve (14) opens. The solenoid
valve is designed for pressures from 100 x 10
3
to 100 x 10
4
Pas-
cals (1 to 10 bar).
Water is fed into the cylinder.
The water level in the cylinder must be maintained within a spec-
ified range. If the water level is to o high, the ellbow act s as a
safety overflow for water drainage. If the water level is too low, it
could cause the heat er elemen t (8) to overhea t. Th erefore,
power supply to the heater element is shut off when water levels
are too low.
The cylinder water level is controlled by a level control (27). The
level control consists of a stainless steel cylinder with two float
switches and three reed contacts. The float switches indicate the
water level in the steam cylinde r: "Dry Run", "Humidification "
and "Max. Level". The control capsule is pressure-equalized.
At the standard setting, the inlet solenoid valve (14) opens when
the water level remains below “humidif ication” level for 10 sec-
onds. The water level then rises again to “humidification” level.
The steam cylinde r consist s of a to p (16) an d lower (9) p art
joined with a cylinder flange. The seal between the cylinder and
cylinder base (11), as well as between the top and lower part of
the cylinder, is maintained using an o-ring.