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8.2
Maintenance for Operation with Tap Water or Par-
tially Softened Water
No precise maintenance intervals can be specified because
these always depend on water quality and quantity of steam
generated. It is advisable to adjust the frequency of maintenance
to the specific operational application.
HygroMatik recommends to open and check the steam cylinder
two weeks after commissioning. Ongoing maintenance intervals
can be estimated based on the amount and type of residue
found in the steam cylinder.
Blow-Down Cycles
The vaporization process causes mineral (calcium) deposits of
different compositions to settle in the steam cylinder. Part of this
solid build-up is removed through periodic blow-downs and fresh
tap water refills.
Water quality
When using tap water, note that cleaning intervals shorten as
the carbonate hardness level in the water increases.
As a gen-
eral rule, it is preferable to operate the unit with fully demineral-
ized water. Operation will not be affected by mineral deposits
and flushing losses will be minimized.
Note:
If desired, maintenance intervals can be lengthened by
moderately increasing blow-down rates. Please consult Hygro-
Matik.
8.3
Removing and Cleaning the Steam Cylinder
Warning:
Please follow the detailed instructions in these operat-
ing instructions! The unit is only to be serviced by qualified,
authorized personnel. Note the warnings and safety notes in the
operating instructions. Failure to observe warnings and safety
notes may result in injury, serious injury or death, and/or dam-
age to the unit. The steam cylinder may still be hot when you
begin maintenance work. Handle carefully!
Note:
After a longer period of operation the steam cylinder could
shrink a little. This doesn‘t matter but could lead to tightness dis-
crepancies when only one half of the cylinder is being
exchanged. Therefore we recommend not to change only one
half of the cylinder but a complete cylinder.
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