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AEG DD8691 Operating And Installation Manual page 4

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The air outlet installation must comply with the regulations laid down
by the relevant authorities.
When the unit is used in its extractor version, a sufficiently large
ventilation hole must be provided, with dimensions that are
approximately the same as the outlet hole.
National and regional building regulations impose a number of
restrictions on using hoods and fuel-burning appliances connected
to a chimney, such as coal or oil room-heaters and gas fires, in the
same room.
Hoods can only be used safely with appliances connected to a
chimney if the room and/or flat (air/environment combination) is
ventilated from outside using a suitable ventilation hole approxi-
mately 500-600 cm
being created during operation of the hood.
If you have any doubts, contact the relevant controlling authority or
building inspector's office.
Since the rule for rooms with fuel burning appliances is "outlet hole
of the same size as the ventilation hole", a hole of 500-600 cm
which is to say a larger hole, could reduce the performance of the
extractor hood.
If the hood is used in its filtering function, it will operate simply and
safely in the above conditions without the need for any of the
aforementioned measures.
When the hood is used in its extractor function, the following rules
must be followed to obtain optimal operation:
— short and straight outlet hose
— keep bends in outlet hose to a minimum
— never install the hoses with an acute angle, they must
always follow a gentle curve only
— keep the hose as large as possible (preferably the same diameter
as the outlet hole).
Failure to observe these basic instructions will drastically reduce the
performance and increase the noise levels of the extractor hood.
2
large to avoid the possibility of a depression
2
,
63

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Dd 8691