INSTALL THE EXHAUST DUCT
The exhaust of the hood must be properly taken care of. For optimum performance of the hood it is important to pay at-
tention to the following items during the installation:
• Use smooth, non-flammable pipes with an internal diameter that is equal to the external diameter of the connection
nozzle of the hood. Maximally extend flexible ducts and cut them to size.
• Do not reduce the exhaust diameter. This will lower the capacity and raise the noise level.
• Make the duct as short as possible and with as few as possible bends to the outside.
• Avoid square bends. Use rounded bends for proper air conduction.
• Flat duct: the surface of a flat duct must be the same size as Ø150 mm = 177 cm².
• In case of an exhaust pipe through the outside wall passing a cavity wall, make sure that the exhaust duct fully bridges
the cavity and slightly declines to the outside.
• When connecting to a short exhaust duct, it may be required to mount a non-return valve in the duct to avoid wind
blowing in.
• Use a hose clamp or aluminum tape for airtight connections.
• In case of an exhaust pipe through the roof, use a double-walled roof passage with sufficient width.
• Never connect to a flue duct.
• Make sure that sufficient air is supplied. Fresh air can be supplied by slightly opening a window or an outside door or
by installing an inlet grate.
EN 11