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5 - MAINTENANCE
5.1 - Casing
The boxes have smooth internal walls. The rate of cleaning will depend on the application and outdoor environment. Check the casing
at least once a year.
IMPORTANT: Do not clean the air handling unit with a high-pressure washer.
5.2 - Dampers
Periodically check the condition and operation of the dampers.
5.3 - Air filters
Filter fouling can be determined by testing the pressure drop.
Air handling units are fitted with pressure tappings.
The various types of filters are shown in section 3.
■ G2 filter
The cells must be periodically vacuumed. To remove greasy dust, the media may be cleaned with warm water (50°C max.) and
detergent.
■ G4 filter
G4 cells are generally non-regenerative. They must therefore be replaced as often as necessary. During assembly, make sure that
the screen is positioned on the "discharge air" side.
■ HPS bag filters (M5, M6, F7, F8, F9)
Bag filters last a long time but are non-regenerative. They must be replaced when they are clogged. Check the condition of the fasteners
and gaskets. Bag filters may be fitted in compressible channels or encased in universal frames with gaskets.
■ High-efficiency and HEP filters (E10-H14)
These come in large-media frames. Follow the assembly and maintenance instructions provided with the cells.
■ Carbon filters
There is no way to know when breakthrough will occur on a carbon filter.
ts service life depends on how it is used:
- Type of impurities to be filtered,
- Concentration of these impurities,
- Average usage time,
- Air flow.
To find out the how long a filter will last under your specific conditions of use, contact the manufacturer of the filter.
IMPORTANT: Wear gloves and protective clothing when changing the filters. Place the dirty filters inside bags.
Compressible track
Universal frames
Frame
19
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