AEG 860 D User Manual
Page 4
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In doubtful cases, please seek the advice and consent of the
competent area chimney-sweep or the local building auth
orities.
Since, in spaces without fireplace, the rule is; “Supply air
opening as large as exhaust air opening”, the efficiency of the
exhaust air device may be impaired by the greater opening of
500-600 cm^.
Operation of the hood as a return air hood in such circumstan
ces is safe and is not subject to the regulations noted above.
Operation of the fume extractor hood in return air mode is
optimum only when the following are ensured:
— short, straight exhaust air runs
— as few pipe bends as possible
— running of pipes in flat arcs, not in acute angles
— as large as possible pipe diameters (basically min. 120 mm
dia. for two-motor hoods).
Faiiure to observe these principles is inevitably associated
with power losses and increased operating noise.
During
installation
of
the
fume
extractor
hood,
the
following
minimum distances from the
upper edge of the hob to the
lower edge of the fume extractor hood
must be complied with:
Electric cookers
Gas cookers
Coal- and oil-fired cookers
650 mm
650 mm
min. 700 mm
For the kitchen
furniture
installer
29