Miele KFN 37452 iDE Operating And Installation Instructions page 92

Installation
– The ventilation cross-sections in the
plinth, housing unit and above the
appliance must each provide an
unobstructed airflow of at least
200 cm² to ensure that air can
circulate without hindrance.
If ventilation grilles are to be inserted
into the ventilation gaps, the
ventilation gaps must be larger than
200 cm². The unobstructed airflow of
200 cm² is calculated by adding up
the total area of ventilation openings
in the grilles.
– Important! The appliance uses less
energy, the larger the ventilation
gaps.
The air inlet and outlet must not be
covered or blocked in any way. They
must also be regularly cleaned of
dust.
92
Top ventilation gap
The ventilation gap at the top of the
appliance can be constructed in
different ways:
a directly above the appliance with a
ventilation grille (free airflow of at
least 200 cm²)
b between the kitchen furniture and
the ceiling
c in a suspended ceiling