Connection for air extraction
Silencer
(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 .
...air extraction with external motor:
To minimise noise from the motor in the kitchen, the silencer should be positioned in front of the external motor
if possible, or if the ducting is long, then in the ducting above the cooker hood itself .
In the case of an external motor placed inside the house, fitting a silencer behind the external motor reduces the noise of the motor outside the house.
In all modes of operation, the most effective noise reductions are achieved if two silencers are fitted one behind the other in the system.
35
