EN
20
Installation
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Installing the additional fan
X
X
Install the additional fan in the exhaust duct.
X
X
Ensure that a minimum clearance of 300 cm is
maintained between the fan units.
X
X
Only use BORA universal fans with your BORA cooktop
extractor system.
Operating the cooktop extractor with a
fireplace that depends on the air in the room
INFO
National and regional laws and regulations
must be observed with regard to the exhaust
duct design. A sufficient air supply must be
ensured.
Fireplaces that depend on the air in the room (e.g. gas,
oil, wood or coal-fired heaters, continuous-flow water
heaters, instantaneous water heaters) draw in air from
the room in which they are installed and release the
exhaust fumes into the outside air via an exhaust system
(e.g. chimney).
If the cooktop extractor is used in exhaust mode, it draws
in air from the room in which it is installed as well as from
neighbouring rooms. If the air supply is insufficient, low
pressure will occur. Toxic gases could be drawn out of the
chimney or extraction ducting and back into the room.
Abb. 6.24 Exhaust air installation – not permitted
Abb. 6.25 Exhaust air installation – correct
X
X
If simultaneously operating both a fireplace and the
cooktop extractor in the same room, ensure that:
Q
Q
the maximum low pressure is 4 Pa (4 x 10–5 bar);
Q
Q
a safety device (e.g. window contact switch, low
pressure warning device) is used to ensure that a
sufficient supply of fresh air is guaranteed;
Q
Q
the exhaust air is not be ducted into a chimney that
is used for exhaust gases of devices operated with
gas or other combustibles;
Q
Q
the installation is checked and approved by an
authorised certified engineer (e.g. heating engineer).
INFO
Never place strain on the cooktop extractor
frame when installing the substructure module.
This will deform the cooktop extractor frame.
X
X
Connect the substructure module [2] to the cooktop
extractor frame [1] by carefully pressing the
substructure module [2] upwards into the relevant
cooktop extractor frame brackets [1]. The module
should audibly click into place on each of the long
sides of the extractor frame to indicate that it has been
correctly connected.
click
click
click
click
Abb. 6.23 Attaching the substructure module
X
X
Use the sealing tape (UDB) provided to adhere the
substructure module [2] to the silence module [3].
X
X
Place the control unit [8] in the plinth area.
INFO
Position the plinth fan and the control unit in
such a way that they are easily accessible and
removable for maintenance work.
Q
Q
The maximum exhaust air duct length is 6 m.
Q
Q
The minimum cross-section of the air ducts must be
176 cm². This corresponds to a round pipe with a
diameter of 150 mm.
Q
Q
For the ducting, only use stable duct elements with
smooth pipe interiors. Do not use flexible or fabric
tubes.
Q
Q
The exhaust air must be directed outside or to the
recirculation unit through appropriate ducts.
Q
Q
For further planning examples and notices, please see
the ventilation handbook (not included in the scope of
delivery).
