HygroMatik SteamKit E, Manual

Page: 27 / 44

Page 27
9. Maintenance
9.1 General
For the achievement of a long unit life span,
regular maintenance is a must. Maintenance
works to be performed refer to unit assem-
blies that underlie either mechanical or elec-
trical wear and tear, or may be impeded by
residues in their proper functioning.
The steam humidifier's performance and
maintenance intervals primarily depend on
the water quality encountered and the
amount of steam produced. A particular
water quality may shorten or lengthen main-
tenance intervals. The amount of residues
found in the steam cylinder allows for a hint
on future maintenance intervals.
As part of the maintenance work, screw ter-
minals and plug connections must be
checked every time. If required, retightening
the teminal screws is a must as well as
ensuring tight fit of all of the plug connec-
tions.
Since steam and condensate hoses are sub-
ject to wear as well, hoses must also be
checked regularly.
Seals are wear parts. As such, seal integrity
checks and replacement if required, is also a
part of the regular maintenance work (s.
spare parts section -> O-ring sets).
9.1.1 Safety instructions for main-
tenance
Risk of electrical shock!
Hazardous electrical voltage. Unit must be
switched off and protected against restart by
expert staff (electricians or expert personnel
with equivalent training) before any mainte-
nance work is commenced.
Risk of skin burning!
Hot steam cylinder during operation and for
some time afterwards.
Drain steam cylinder before any maintenance
work is commenced. After that, wait approx.
10 mins before starting maintenance work.
Check steam cylinder temperature by cau-
tious approximation with hand (do not
touch!).
Risk of scalding!
Water pumped or drained from the steam
cylinder may have a temperature of up to
95 °C (203 °F).
Wear proper PPE (Personal Protection
Equipment)!
The notice following herafter is of particular
significance when a HygroMatik control is
used. It is a general rule, however, whenever
electronic components are in use.
Take care of ESD protection!
The electronic components of the humidifier
control are very sensitive to electrostatic dis-
charges. In order to protect these compo-
nents during maintenance, steps must be
taken to guard against damage from electro-
static discharge.
WARNING
!
WARNING
!
WARNING
!
NOTICE