Miele DA 390-6, Operating Instructions Manual

Page: 39 / 48

Connection for air extraction
39
 When ducting is horizontal it must be
laid to slope away at at least 1 cm
per metre. This is to ensure that
condensate cannot drain back into
the rangehood.

If the exhaust ducting is to run
through rooms, ceiling space etc.
where there may be great variations
in temperature between the different
areas, the problem of condensation
will need to be addressed. The
exhaust ducting will need to be
suitably insulated.
Condensate trap
In addition to insulating the exhaust
ducting, we recommend that a suitable
condensate trap is also installed to
collect and evaporate any condensate
which may occur.
Condensate traps are available for 125
mm or 150 mm ducting.

When installing a condensate trap,
ensure that it is positioned vertically
and if possible directly above the
exhaust connection.
The arrow on the housing indicates
the direction of airflow.
The condensate trap will be integrated
in rangehoods which are designed to
be connected to an external fan
(model......EXT).
Silencer
To achieve even further reductions in
noise levels, a special silencer (optional
accessory) can be fitted in the ducting
system.
Air extraction mode
The silencer not only reduces noise
from the motor outside the house, but
also sounds from outside (e.g. traffic
noise). For this reason, the silencer
must be positioned as close as
possible to the ducting exit  .