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Draughts, dust and air flows. False
alarms may be caused by the smoke
alarm device being placed too close to
doors, windows, ventilation systems,
fans, air ducts, heat pumps or suchlike.
This can lead to dust particles being
carried up into the detection chamber.
Do not install smoke alarm devices in
a draughty location, close to windows
or doors, ventilation, fans, air ducts,
heat pumps or suchlike. Find a better
location for the smoke alarm device,
further away from draughts and air
flows.
Temperature variations. Temperature
variations may lead to condensation
in the detection chamber. This may
happen, for example, if the smoke
alarm device is placed in a room
where windows are opened for ven-
tilation in the winter, or close to exits,
balcony doors or other places that
switch between hot and cold.
Avoid fitting smoke alarm devices
in rooms with rapid temperature
changes or close to windows and
doors that are frequently opened and
closed. Move the smoke alarm device
to a place with a more even and stable
temperature.
Generally unfavourable positions.
Incorrect positioning in an unstable
indoor environment, a draughty area,
close to electronic apparatus (EMC)
and lighting may cause a false alarm.
Place smoke alarm devices at least
6 metres from open fires, stoves or
other heating devices; 2 metres from
ventilation ducts, heat pumps and
air conditioning; 1,5 metres from light
bulbs and fluorescent tubes.