Positioning
On a ceiling
Hot smoke rises and spreads out, so a central ceiling position is the recommended
location. The air is “dead” and does not move in corners, therefore smoke alarms must be
mounted away from corners. Place the unit at least 0.3 m from any light fitting or deco-
rative object which might obstruct smoke entering the smoke alarm. Keep at least 0.3 m
away from walls and corners, see
Figure 4
.
On a wall
When a ceiling position is not practical (for example on a ceiling having exposed beams or
joists, or built-in radiant heating) put the top edge of your smoke alarm between 15 and
30 cm below the ceiling. Keep at least 0.3 m from corners, see
Figure 4 and 5
.
On a sloping ceiling
In areas with sloping or peaked ceilings install your smoke alarm 0.90 m from the highest
point measured horizontally, because “dead air” at the apex may prevent smoke from
reaching the unit, see
Figure 5
.
Attics (uninsulated) or other places where extremes of temperature may occur (below
4°C or above 40°C).
Near a decorative object, door, light fitting, window molding etc., that may prevent
smoke from entering the Smoke Alarm.
Surfaces that are normally warmer or colder than the rest of the room (for example attic
hatches, uninsulated exterior walls etc). Temperature differences might stop smoke
from reaching the unit.
Next to or directly above heaters or air conditioning vents, windows, wall vents etc. that
can change the direction of airflow.
In very high or awkward areas where it may be difficult to reach the alarm for testing or
battery replacement.
Locate unit at least 1.5 m away from fluorescent light fittings as electrical “noise” and/or
flickering may affect the unit.
Locate away from very dusty or dirty areas as dust build-up in the chamber can make
unit too sensitive and prone to alarm. It can also block the insect screen mesh and
prevent smoke from entering the chamber.
Do not locate in insect infested areas. Small insects getting in to the chamber can
cause intermittent alarms.
Testing and maintenance
Your smoke alarm is a life saving device and should be checked periodically. Regularly
check that the status LED on the smoke alarms flashes once a minute to show the units
are powered. Replace the battery if the blinking stops.
Manually testing your smoke alarm
It is recommended that you test your smoke alarms after installation and then at least
weekly to ensure the units are working. It will also help you and your family to become
familiar with the sound of the alarms.
Press and hold the test button until the alarm sounds, see
Installation
. The alarm will
stop sounding shortly after the button is released.
If you are using a supplementary Visit receiver, check that the red Visit LED on the
receiver lights up and that it starts to sound, flash or vibrate depending on the receiver.
See
Installation
on page 3 and the corresponding Visit receiver user manual.
The receiver will time out within 40 seconds.
Repeat this procedure for all other smoke alarms in the system.
Figure 4
Figure 5
0.9 m
3 '
Dead air spaces
Never within 0.3 m
of any corner
Ideal in the centre of the ceiling
Apex
Locations to avoid
Don’t place your smoke alarm in any of the following areas:
Bathrooms, kitchen, shower rooms, garages or other rooms where the smoke alarm
may be triggered by steam, condensation, normal smoke or fumes.
15-30 cm
6-12 "
30
29
EN
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