Connection for air extraction
Danger of toxic fumes. Please heed the "Warning and Safety instructions" to avoid the danger of toxic fumes.
The cooker hood should be in- stalled according to local building regulations. Seek approval from the building inspector where necessary.
–All ducting, pipework and fittings must be of
–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 effi- cient.
Only reduce the diameter of the duct- ing 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
–Where ducting is horizontal it must be laid to slope away at at least
1 cm per metre.
This is to ensure that condensate can- not 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.
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