Miele DA 249-2 EXT Istruzioni per l'uso e l'installazione - Pagina 29

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Danger of toxic fumes.

Please heed the "Warning and

Safety instructions" to avoid the dan-

ger of toxic fumes.

The cooker hood should be installed

according to local building regula-

tions. Seek approval from the build-

ing inspector where necessary.

– All ducting, pipework and fittings

must be of non-flammable material.

– The extraction ducting should be as

short and straight as possible.

– To ensure efficient air extraction the

diameter of the exhaust ducting

should not be less than 150 mm.

If exhaust ducting with a diameter of

less than 150 mm or flat ducting

were to be used, the noise level of

the cooker hood would increase and

extraction would be less efficient.

Only reduce the diameter of the

ducting if absolutely necessary, e.g.

where narrower ducting has already

been installed.

– Only use wide radius bends. Tight

bends reduce the air throughput of

the cooker hood.

– Only use smooth pipes or flexible

hoses made from non-flammable ma-

terials for extraction connection.

Connection for air extraction

– Where ducting is horizontal it must

be laid to slope away at at least 1 cm

per metre.

This is to ensure that condensate

cannot drain back into the cooker

hood.

– If the exhaust air is to be ducted into

the open air, the installation of a tele-

scopic wall vent is recommended.

– If the exhaust air is to be ducted into

a vent flue, the ducting must be di-

rected in the flow direction of the

flue.