Vitrifrigo MACS 7 Serie Manuel D'installation page 71

After positioning the fan according to the installation requirements, reposition the rear casing with the
fan on the machine.
Return air grille: The return air grille is the component of air distribution system that filter and suction the
air which must be cooled or heated.
For correct air distribution, the return air grille must be positioned at the bottom, at the floor level, in front
of the finned exchanger. We recommend keeping at least 10 cm. of space between the grill and the exchanger
itself (see the paragrapher 6.2).
Generally, the return air grilles are equipped with a filter. If this is not the case, it will be necessary to install
a filter in front of the evaporator.
Vitrifrigo return air grilles are equipped with a filter. If grilles other than the Vitrifrigo
accessory kit are used in which the air filter is not present, a filter must be installed in front
of evaporator or in the grille.
The air filter, whether present on the grille or installed separately, must be periodically cleaned so as not to
obstruct the flow of air towards the air conditioner.
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