Miele DA 409 Operating And Installation Instructions - Page 34

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Miele DA 409 Operating And Installation Instructions

Air extraction

,
WARNING
Danger of toxic fumes.
Gas cooking appliances release
carbon monoxide that can be
harmful or fatal if inhaled.
To reduce the risk of fire and to
properly exhaust air, the exhaust
gases extracted by the hood
should be vented outside of the
building only.
Do not vent exhaust air into
spaces within walls or ceilings or
in attics, crawl spaces or garages.
To reduce the risk of fire, only use
metal ductwork.
Please read and follow the
"IMPORTANT SAFETY
INSTRUCTIONS" to reduce the risk of
personal injury. Follow all local building
codes when installing the hood.
34
Exhaust ducting and connections
– The ducting should be as short and
straight as possible, and the number
of sharp bends should be minimized.
– For most efficient air extraction, the
diameter of the ductwork should not
be less than 6" (150 mm). Use of flat
ducts also reduces the air extraction
efficiency.
– Noise levels of the hood will increase
if flat ducts or round ducts of less
than 6" (150 mm) in diameter are
used.
– Use smooth or flexible pipes made
from approved non-flammable
materials for exhaust ducting.
– Where the ductwork is horizontal, it
must slope away from the hood at
1
least
/
" per foot (1 cm per meter) to
8
prevent condensation dripping into
the appliance.
– If the exhaust is ducted through an
outside wall, a Telescopic Wall Vent
can be used.