Miele DDG 102 Manuel d'utilisation et d'installation - Page 20
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Extraction ducting
Danger of toxic fumes.
Please heed the "Warning and Safety
instructions" to avoid the danger of
toxic fumes.
The cooker hood should be installed
according to local and national
building regulations. Seek approval
from the building inspector where
necessary.
– The extraction ducting should be as
short and straight as possible.
– To ensure efficient air extraction, the
diameter of the exhaust ducting
should not be less than 150 mm.
If exhaust ducting with a diameter of
less than 150 mm or flat ducting is
used, the noise level of the cooker
hood will increase and extraction will
be less efficient.
Only reduce the diameter of the
ducting if absolutely necessary, e.g.
where narrower ducting has already
been installed.
– Only use wide radius bends. Tight
bends reduce the air throughput of
the cooker hood.
– Only use smooth pipes or flexible
hoses made from non-flammable
materials for extraction connection.
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– Where 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 cooker
hood.
Important:
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 sweating or 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.
If required, condensate traps C 125 mm
and C 150 mm can be purchased from
builders merchants.
When installing a condensate trap,
ensure that it is positioned vertically
and if possible directly above the
exhaust connection.