3. Positioning Alarms
The locations must comply with applicable building regulations.
Hot smoke rises and spreads out, so a central ceiling position is the preferred location.
The air is “dead” and does not move in corners, therefore alarms must be mounted away
from corners. Place the Alarm:
- At least 300mm away from walls. See
Figure 1
.
- At least 300mm from any light fitting or decorative object which might obstruct smoke
/ heat entering the Alarm.
Note: Ceiling mounting is recommended - do not wall mount Alarms.
Sloping Ceiling
In areas with sloping or peaked ceilings install the Alarm 900mm from the highest point
measured horizontally (see
Figure 2
). This is because “dead air” at the apex may
prevent smoke from reaching the Alarm.
900mm
300mm
300mm (min)
0.3m
SMOKE ALARMS
<600mm
HEAT ALARMS
<150mm
APEX
x
x
Figure 1
Figure 2
11
