38
Informations on air flow
10. Informations on air flow
•
The exhaust air line should be as short
and straight as possible.
•
To avoid excessive noise or a reduced
extraction capacity the diameter of
the exhaust air pipeline should not be
less than 150 mm.
•
Use or form only large radius bends.
Small radius bends reduce the extrac
-
tion capacity of the hood.
•
Use only smooth pipelines or flexible
hoses of non-flammable materials for
the exhaust air pipeline
•
If the exhaust air pipeline is horizon
-
tally routed, there must be a minimum
gradient of 1 cm per metre or an incli-
nation angle of 2°. (
Fig. 3
) Otherwise
condensation water could run into the
extractor hood motor.
•
If the exhaust air is directed into an
exhaust air duct, the end of the entry
fitting must be directed in the direc
-
tion of flow.
•
If the exhaust air is directed into an
exhaust air duct, the end of the entry
fitting must be directed in the direc
-
tion of flow.
•
If the exhaust air pipeline is routed
though cool rooms, lofts etc. there can
be a large temperature drop within
the individual parts of the pipeline,
resulting in sweating or condensation
water production. This renders outlet
pipeline insulation necessary.
• In some cases a condensation water
barrier must be installed in addition to
adequate insulation
The manufacturer is not responsible for
any faults occurring through non-com-
pliance with the above information and
provisions.
!
Fig. 3:
inclination angle of the exhaust
air pipeline
Note:
Images are for illustration purpo-
ses only and may vary.
1
2
3
Fig. 1:
Abluft ins Freie
Fig. 2:
Abluft über Luftschacht/Kamin
