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6 - MAINTENANCE/SERVICE INTERVALS
Switch off the electrical supply to the air handling unit before carrying out any work
Details of hinges/handles: Allen key locks, size 4
When they are unlocked, the handles are in "hinge" mode. It is possible to unlock a single row of handles to open like a
conventional door. If all of the handles are unlocked, the door can be removed
FILTERS
After commissioning, the speed of filter fouling will depend on the care taken when cleaning the air flow circuits. Hence the
frequency of filter checks should be increased during this period.
Maintenance intervals
The filter life depends essentially on the amount of dust in the air and the efficiency of the filtration system. The filtration
quality cannot be maintained if the filter medium has been damaged during maintenance. We recommend that the filters be
replaced once every two years, even in the case of moderate use
Filter replacement method
During filter maintenance operations, it is important not to spread the dust that has accumulated in the filters.
Shut down the unit,
Access the filters by opening the door panels,
Simply pull on the filters
Pull out the slide-
type terminal (present on the 39HX C and E models ≥ 3000m
3
/h); you can then remove the filters. For the
other models, simply pull directly on the filters.
Example: 39HXE
Filter
Slide-type
terminal
Handle unlocked
Handle locked
Door
