15
•
Prior to installation, always follow the
instructions and warnings in the chapter
entitled ”Safety instructions”!
Exhaust-air mode
•
The exhaust air is conveyed upwards via a
ventilation shaft or directly through the outer
wall to the exterior.
Note: The exhaust air must not be conveyed into a
functioning smoke or exhaust gas flue or into a
shaft which is used to ventilate
installation rooms which contain heating
appliances.
•
Before conveying the exhaust air into a non-
functioning smoke or exhaust gas flue, obtain
the consent of the appropriate heating
engineer.
•
Discharge exhaust air in accordance with the
official and statutory regulations (e.g. regional
building laws).
•
If the exhaust air is conveyed through the outer
wall, a telescopic wall box should be used.
To ensure optimum performance, the extractor
hood requires:
–
a short, straight exhaust air pipe and
–
the largest possible pipe diameter.
•
If pipe bends cannot be avoided, ensure the
largest possible radii.
Note: If long, rough exhaust air pipes, a lot of pipe
bends or pipe diameters less than 5
7
/
8
” are used,
the air capacity will be less than optimum and there
will be an increase in noise.
•
Use only pipes or hoses made of non-
combustible material for installation of the
exhaust air duct.
•
The manufacturer of the extractor hoods is not
responsible for complaints which can be
attributed to planning and design of the
pipework.
Connecting pipes
•
The diameter of the exhaust air pipes should
not be less than 5
7
/
8
”.
•
Round pipes:
We recommend an inner diameter of 5
7
/
8
”,
however at least 4
3
/
4
”.
•
Flat ducts must have the same inner cross-
section as round pipes.
There should be no sharp bends.
Ø 5
7
/
8
” approx. 27
1
/
8
” square inch
Ø 4
3
/
4
” approx. 17
3
/
4
” square inch
•
If pipe diameters differ:
Use sealing strips.
Connection of 5
7
/
8
” ø exhaust air pipe
(recommended size)
•
Attach exhaust air pipe
directly to the air-pipe
connector and seal
appropriately. If using an
aluminium pipe, smooth the
connection area beforehand.
Connection of 4
3
/
4
” mm ø exhaust air pipe
•
Attach reducing connector
directly to the air-pipe
connector.
•
Attach exhaust air pipe to the
reducing connector.
•
Seal both joints appropriately.
Installation instructions
