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POSITIONING SMOKE & HEAT ALARMS
The location must comply with applicable building regulations.
Ceiling Mounting
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 Smoke & Heat Alarms must be mounted away
from corners. Place the unit at least 300mm (12 inches) from any
light fitting or decorative object which might obstruct smoke / heat
entering the Alarm. Keep at least 300mm (12 inches) away from
walls. See figure 4.
On a sloping Ceiling
In areas with sloping or peaked ceilings install your Smoke Alarm
90 cm (3 feet) from the highest point measured horizontally (see
figure 5), because "dead air" at the apex may prevent smoke from
reaching the unit.
Wall Mounting
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 150 and 300mm (6
and 12 inches) below the ceiling. Keep at least 300mm (12
inches) from room corners. (see figure 4).
Wall mounting is not recommended for Heat Alarms.
Figure 5
Figure 4
IDEAL IN CENTRE
OF CEILING
15 TO 30 cm
(6-12")
90 cm
DEAD AIR SURFACES
(3 FEET)
NEVER WITHIN 300mm
OF ANY CORNER
INSTALLING SMOKE & HEAT ALARMS
The Alarm is designed to be permanently mounted on to a
standard or rectangular junction box and connected to the 230
VAC, 50Hz mains supply. It requires a current of 40mA. The Alarm
must not be exposed to dripping or splashing. There are important
markings on the underside of the alarm.
IMPORTANT PRECAUTION: Do not install the actual alarm
itself in new or renovated buildings until all work is completed
(including floor coverings) and the building has been fully
cleaned. The wiring can be installed when appropriate.
(Excessive dust and debris from building work can
contaminate the smoke chamber or heat sensor and cause
problems, it will also invalidate the guarantee). If it must be
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