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Operation and maintenance
Envistar Compact
DSEC181201.00.EN
Continuous product development may give rise to specification changes without notice.
7.2 Filter (code ACEF)
The air filters in an air handling unit are designed to pre-
vent dust and other impurities from entering the building.
They should also protect sensitive components inside the
unit, e.g. water coils and heat exchangers, from exposure
to impurities.
The dust separation efficiency varies considerably be-
tween various filter types. The dust collecting efficiency
also varies substantially. It is therefore important to use
filters of the same quality and capacity when you change
them.
According to guidelines for hygienic design VDI 6022 Part
1: The supply air filter must be class ePM1-50% (F7) or
have a greater filtration efficiency.
The filters are designed for one-time use. If they become
fouled, the unit will lose capacity. The filters should there-
fore be changed if the pressure drop across them ex-
ceeds the specified final pressure drop.
It is important to stop the unit before changing filters to
prevent dust from coming loose and being drawn into the
unit. The inside surfaces of the filter sections should therefore also be cleaned
when the filters are changed.
For the Home Concept version (code ACET-08)
The filter cabinet is an optional extra for the Home Concept version and can be
used for
• aluminium filter on the extract air side
• carbon filter on the supply air side
AL
C
AL - aluminium filter, C - carbon filter, Black Ridge
The aluminium filter is intended for use where the extract air contains grease
particles to avoid grease being sucked into the unit. The filter is a knitted flat-
type filter. The aluminium filter can be cleaned using hot water and a mild alka-
line detergent.
Filter
Summary of Contents for Envistar Compact Series
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