Mark Klimat 15-15 Mode D'emploi page 10

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For longer periods of time.
Follow the points for shutting down the appliance for a short period.
– Check that any filters have not become dirty. If they are dirty, it is recommended that they be
removed and replaced to prevent mould from forming.
– De-tension the V-belts and the band(s).
4.0 Maintenance
4.1 General
The appliance must be subjected to maintenance at least once a year, more often if necessary. If
applicable, ask a qualified installer for maintenance advice. When carrying out maintenance, the ap-
pliance must have been shut down for an extended period. Make sure that you comply with all
safety rules.
4.2 Cleaning
The air treatment unit can be cleaned using commercially available cleaning agents. The cleaning
agent manufacturer's instructions must, however, be followed. Cleaning agents must not contain
acids or other aggressive components.
4.3 Fan [4][5]
During maintenance (at least 1x per year), check the V-belt(s) for the correct tension and evi-
dence of wear and tear, and re-tension or replace if necessary. Always replace all the belts at the
same time on multi-belt drives. Always check that the pulleys are aligned. Clean the fan wheel if
necessary. Check the motor(s) and fan(s) for bearing noise, and replace bearings if necessary. It is
recommended that protection against the belt breaking be installed. The adjustment criteria for
new belts and pulleys are 80% of the nominal pressure. If the V-belt(s) are not sufficiently ten-
sioned or are broken, pressure over the fan(s) will drop or be lost. The pressure switch installed
will provide a signal, following which technical services need to apply appropriate measures.
4.4 Filters [6]
Depending on the operating conditions, check the filters at short intervals, and replace if neces-
sary. If the final pressure differential is exceeded, the filters should be changed. Consult the name
plate on the filter compartment for further information. Various filters may be used depending on
the unit's use. Panel filters for low temperature, panel filters for high temperatures and/or bag fil-
ters. If the filters are located in the "cold" air flow, they may freeze over in the winter due to
"frost". A filter monitoring pressure switch (optional) can provide an early indication if the filter is
dirty or blocked. If bag filters are used, make sure that the bags are inserted vertically. High tem-
perature filters (filter class 4) should be used as far as possible with a Calflo. These filters are lo-
cated after the heating section in order to prevent freezing. When replacing dirty filters, always
wear suitable personal protective equipment. Care must be taken when removing dirty filters and
fitting clean filters. Make sure filter frames are also correctly sealed. Dirty filters usually need to be
treated as special waste.
4.5 Gravity shutter [7]
The following maintenance activities should be carried out annually: Clean gravity shutters, never
lubricate bearings (plastic). Check that gravity shutters are current. Check that servo motors fit-
ted with end switches have the correct control functions.
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