chimney, in a wall cavity, or if the prevailing
air draughts carry the smoke or heat away.
Installing Smoke Alarms on both sides of closed
doors and installing more than one Alarm as
recommended in this leaflet very significantly
improve the probability of early detection.
• The Smoke Alarms may not be heard.
• A Smoke Alarm may not wake a person who
has taken drugs or alcohol.
• The Alarms may not detect every type of
fire to give sufficient early warning. They
are particularly ineffective with: fires caused
by smoking in bed, escaping gas, violent
explosions, poor storage of flammable rags
and/or liquids, (for example petrol, paint,
spirits etc), overloaded electrical circuits, arson,
children playing with matches.
• Current studies have shown smoke alarms
may not awaken all sleeping individuals, and
that it is the responsibility of individuals in the
household that are capable of assisting others
to provide assistance to those who may not
be awakened by the alarm sound, or to those
who may be incapable of safely evacuating the
area unassisted
Limitations of Heat Alarms
There are various situations where a Heat
Alarm may not be effective:
• Fires where the victim is intimate with a
flaming initiated fire; for example, when a
person’s clothes catch fire while cooking.
• Fires where the heat is prevented from
reaching the Heat Alarm due to a closed door
or other obstruction.
• Incendiary fires where the fire grows so
rapidly that an occupant’s egress is blocked
even with properly located Heat Alarms
5. Getting Your Alarm Serviced
If your Alarm fails to work after you have
read the sections on “Installation”, “Testing,
Maintenance and Power Supply Monitoring”,
then contact Customer Assistance at the nearest
address given at the end of this leaflet. If it needs
to be returned for repair or replacement put it
in a padded box with the battery disconnected.
Send it to “Customer Assistance” at the nearest
address given on the Alarm or in this leaflet. State
the nature of the fault, where the Alarm was
purchased and the date of purchase.
6. Installation
Installation Procedure
1. Select a location complying with the advice
in Section 2.
2. Lift off the mounting plate from the Smoke
Alarm.
3. Place the mounting plate on the ceiling
exactly where you want to mount the Alarm.
With a pencil, mark the location of the two
screw holes.
4. Taking care to avoid any electrical wiring in the
ceiling, drill holes using a 5.0mm drill bit through
the centre of the marked locations. Push the
plastic screw anchors provided into the drilled
holes. Screw the mounting plate to the ceiling.
5. Insert the battery or batteries as per the
Quick Start Guide, ensuring the orientation
is correct. If the battery is already installed in
your Alarm just pull the battery tab to power
the Alarm.
Figure 5
ROTATE UNIT ANTI-CLOCKWISE
UNIT WILL NOT TWIST OFF - IT MAY BE
TAMPERPROOFED - SEE FIGURE 8
6. Carefully line up the Alarm on to the
mounting plate, gentle press home and twist
clockwise.
Install all the other Alarms similarly.
7. Press the Test button on each Alarm to ensure
that the Alarm works (see Figure 6).
Figure 6
Smoke Alarm
Tamperproofing the Alarm
The Alarm can be made tamperproof to prevent
unauthorised removal of the Alarm.
Break off the small pillar on the base as shown
in Figure 7a. To remove the Alarm from
the ceiling it is now necessary to use a small
screwdriver, to release the catch (push catch
towards the ceiling) and then twist off the
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