Exhausto VEX5000 Series, Assembly, Installation And Maintenance Instructions

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Maintenance
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8. Maintenance
The VEX5000 series has been designed to not require any maintenance. The air
handling unit shall be cleaned and the filters replaced when they are worn out. This is
important because it ensures the air handling unit retains its efficiency and that there is
a good hygienic indoor climate.
The air handling unit’s operation conditions and its surrounding environment determine
how often inspection must be carried out and its cleaning requirements.
EXHAUSTO recommends that a ventilation unit inspection procedure is established, so
that the frequency of cleaning and filter replacement can be set and carried out promptly.
8.1 Replacement of filters
The air handling unit is equipped with one or more filters. The filters are marked to show
type, and are inserted in holders where they are retained using locking rails. The rails
push the filter frames against the rubber seal and are released by pushing out the handle
on the rails.
The lifetime of the filters depends on the operating rhythm and the concentration of dust
in the air.
Regular inspections of the pressure drop should be carried out. Avoid exceeding the
recommended pressure drop, since the airflow is thus reduced and the efficiency of the
unit is degraded.
The filters are disposable filters and must be replaced when they are worn out and when
the terminal pressure drop has been reached.
Once the display or filter monitor shows a filter alarm, the filter should be changed.
It is recommended that all filters are replaced at the same time.
Once the unit is operating, set the filter
monitor by moving the 0-point to the lowest
liquid height.
Read the pressure difference on the
highest liquid column.
Filter type Terminal pressure
G2 - G4 150 Pa
F7 200 Pa
M5 200 Pa
F9 300 Pa