GB 11
installation (continued)
NB:
If an extractor hood and a heat source (for example, gas-,
oil- or coal-fired cookers) which take air from the same
room are in use at the same time, there is a possibility that
the extractor hood will cause an underpressure in that room.
The maximum permitted underpressure is 4 Pa, so that no
combustion gases from the heat source can find their way
back into the room. For this reason, an air supply is required
to provide a constant supply of fresh air to the room.
electrical connection
The extractor hood’s plug should be accessible after fitting
or the extractor hood should be isolated by a bipolar switch
with 3 mm plug pins.
When making the electrical connections, make sure that
the socket is earthed and that the voltage and frequency
correspond to the values given on the data plate.
If the connection cable is damaged, it should be replaced
by the service department of the manufacturer or similarly
qualified persons in order to prevent dangerous situations
from arising.
GB 10
installation
some preliminary remarks
An extractor hood should be installed in accordance with
national and local regulations. The minimum distance
between the underside of the extractor hood and the hob
should be 65 cm.
The appliance should be connected by a registered fitter.
Damage arising from incorrect connection or incorrect
fitting is not covered by the guarantee.
attention:
When the extractor hood is incorrectly connected, extra
air resistance occurs. This results in a decrease in suction
capacity and the noise production of the extractor hood
increases.
- Check the diameter of existing ducts, check for
blockages and if they are not connected with other
ducts or spaces
- Avoid constriction and angled bends, but instead use
rounded curves for good air conducting.
- Use smooth ducts with the same internal diameter as the
external diameter of the exhaust of the extractor hood.
- The use of flexible piping must be kept to a minimum
and be used exclusively for making short bridging
connections.
