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FAN ASSEMBLY
The unit must be disconnected from the power supply when cleaning the fans.
Fans can be cleaned with compressed air or by brushing them with soap and water or with a neutral
detergent.
Finish the cleaning by rotating the fan by hand to verify the absence of abnormal noises.
CLEANING FILTERS
The unit must NOT be running when the filters are removed to avoid drawing in outside air that
might be contaminated.
Filters need to be cleaned often and carefully. Usually, the compact filters (G4) can be cleaned
three times
by vacuuming them with a vacuum cleaner, or by blowing them with compressed air before
replacing them. For replacement, refer to the control system signalling.
CORRECT FILTER AND PRE-FILTER INSTALLATION (IN THE EVENT OF REPLACEMENT)
Remove the old filters (see previous chapter), extract the new filters from the packaging (in which they are
supplied to avoid deterioration during transport and stay on site), insert them in the special containment
section, paying attention to their correct positioning.
Remove the filters from their packaging only when ready to install them to avoid getting them
dirty and contaminating them.
Make sure that the inside of the filter is not contaminated by external agents.
This operation should be carried out about one hour after the first start-up of the unit, the period
during which the ducts are cleaned of dust and various debris. Proceeding in this way preserves
the filtering sections that cannot be regenerated.
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two or
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