11
Before the installation
External evacuation mode
150
209
175
40
Max 345,5
Min. 235
660
150
Max 1014
415,5
Min. 903
490
253
515
599,5
Kitchen vapors are evacuated through the ducting pipe upwards
or outside the building through the wall.
For external evacuation mode, it is necessary to install a
non-
return valve in the ventilation shaft.
If there is no non
-
return valve in the cooker hood set
–
you can
purchase it in
a
specialized store.
Fit the
non-
return valve:
❑
Fit a
non-
return valve inside the ventilation shaft.
Make sure that the
non-
return valve can be opened
freely.
If you want the kitchen vapour to be extracted directly
outside, it is necessary to install a telescopic duct in the
external wall.
To ensure the optimal cooker hood air capacity
:
❑
The exhaust pipe should be short and have a smooth surface.
❑
There should be a minimum number of bends in the pipe.
❑
The biggest pipe diameter possible and no bends.
Aspiration capacity won’t be optimal and the noise level will
increase in case long pipes with rough surface , many bends
and small diameter are used.
❑
Circular pipes
:
Recommended internal diameter is 150 mm.
Flat pipes (e.g. rectangular section) the inner section area
should not be less than the circular pipe inner section area.
There should be no tight bends.
Ø
150 mm corresponds to approx. 177 cm
²
.
❑
If the pipes have different diameters:
Use appropriate adhesive tape to seal the interconnection
.
❑
Appropriate kitchen ventilation should be provided
for the hood working in evacuation mode.
Connect an exhaust pipe with
Ø
150 mm
:
❑
Fit the pipe
in
the air outlet hole of the hood.
