Novy 650-1 Montageanleitung Seite 11

Circular ducts:
• 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.
• 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 wall, use a wall vent.
Flat duct:
• Use flat duct with rounded corners and with air deflectors. Available at Novy.
General information:
• 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.
• In case of an exhaust pipe through the outside wall passing a cavity wall, make sure that the exhaust duct fully brid-
ges the cavity and slightly declines to the outside.
• 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.
ACCESSORIES
Recirculation
In case of recirculation Novy provides charcoal filters.
Various accessories
• Clamp Ø60-215 mm
• Aluminium tape (per 50 m)
• Aluminium wall vent for outlet Ø150mm
• One-way valve Ø150mm
• Stainless steel cleaner
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EN 11