Miele DA 420-4 Manuale operativo e di installazione - Pagina 31

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Silencer

(optional accessory)

To achieve even further reductions in

noise levels, a special silencer can be

fitted in the ducting system...

Connection for air extraction

...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

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.

reduces