AEG 222D - Manual (Page 9)

• The national decree on fuel-burning systems specifies a maximum
depression of 0.04 bar in such rooms.
• 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 2 large to avoid the possibility of a depression
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 2 , 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 (120 mm 0 min.).
• Failure to observe these basic rules will drastically reduce the
performance and increase the noise levels of the extractor hood.
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