Silencer
(DASD 150, optional accessory)
To achieve even further reductions in
noise levels, a special silencer can be
fitted in the ducting system.
...with air extraction:
The silencer not only reduces noise
from the fan, but also sounds from
outside (e.g. traffic noise).
For this reason, the silencer must be
positioned as close as possible to where
the ducting leaves the building
a
.
...in recirculation mode:
The silencer needs to be positioned
between the fan and the exhaust grille
b
. Ensure there is adequate space for
fitting it.
In all modes of operation, the most
effective noise reductions are
achieved if two silencers are fitted in
the system.
Connection for air extraction
35
Содержание DA 3460
Страница 10: ...Description of the appliance 10 ...
Страница 20: ...DA 3460 DA 3490 Appliance dimensions 20 ...
Страница 22: ...Installation accessories Installation 22 ...
Страница 24: ...Installation 24 ...
Страница 40: ...Alteration rights reserved 3513 M Nr 09 727 360 01 ...