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• Smoke and other combustion residues rise upwards to the ceiling and spread horizontally.
Mount smoke detectors on the ceiling in the centre of the room, this paces it closest to all
other points in the room.
Ceiling mounting is recommended in conventional residential buildings. In caravans or mo-
torhomes mounting on a vertical wall is required instead, in order to prevent a thermal barrier
that may form at the ceiling.
• If you are installing the smoke detector on the ceiling, ensure locating it at a minimum dis-
tance of 50 cm from the side wall and 60 cm to each corner.
The smoke detector should be attached to a brace suspending from the ceiling or similar
spots. Make sure that you maintain the minimum distances to corners and walls.
For rooms with sloped ceilings (attic), it is recommended to mount a smoke detector on each slope.
Unfavourable installation sites for smoke detectors
The following installation sites should be avoided:
• Kitchen/bathroom and toilet: The cooking fumes or water vapours present in these rooms
may trigger a false alarm.
• Garages: A vehicle's exhaust fumes may trigger a false alarm in garages.
• Near heaters or air conditioners
• Rooms where the temperature is very low or very high
• Gable roof: Hot air (e.g. in summer or when heating the room) may accumulate here, which
would prevent the fumes of a dangerous smouldering fire from reaching the smoke detector.
• Ceilings in caravans or similar: The sun heats up the room ceiling and hence the air in the
upper part of the caravan. The hot air keeps the fumes of a dangerous smouldering fire from
reaching the smoke detector.
• Stationary walls in residential buildings: Here the smoke is detected very late, so that the
warning is delayed.
• Corners in buildings: Here the smoke is detected very late, so that the warning is delayed.
Installation of the smoke detector, inserting the battery
The smoke detector cannot work without a battery or when the battery is dead.
When the "low battery" alert beeps (one short beep every 45 seconds), the battery
must be replaced with a new one.
Test the smoke detector once a week and after each battery change by holding
down the "TEST" button for about 3 seconds. The smoke detector will then emit a
beep and the LED will flash. Also see chapter "Functional test".
For operational safety reasons do not use a rechargeable battery; use only a non-
rechargeable battery.
Due to safety reasons the smoke detector cannot be fastened to the mounting plate,
if the battery is not inserted.
• Remove the mounting plate by turning the smoke detector and take it off (turn the upper part
counter-clockwise to the left, see marking "
• Use the mounting plate as a template and draw bores on the two outer recessed openings
(distance between bores 70 mm).
• Fasten the mounting plate with suitable screws; use wall plugs, if necessary.
Make sure that you do not damage any wires or lines during the process of fastening
or drilling.
For safety reasons, we do not recommend using adhesive tape or a magnetic plate
for the installation.
• Connect a 9 V block battery to the battery cable located inside the battery compartment of the
smoke detector paying attention to the correct polarity.
• Put the smoke detector on the mounting plate and lock it by turning it to the right (turn the
upper part clockwise to the right, see marking "TWIST TO TIGHTEN
Due to safety reasons the smoke detector cannot be fastened to the mounting plate,
if the battery is not inserted. When a battery is inserted, it presses onto a small red
lever inside the battery compartment, which pulls a pin into the housing. Now, the
smoke detector can be mounted to the mounting plate.
Replacing the battery
Once the battery are empty, the smoke detector will beep every 45 seconds. In that
case, replace the flat battery with a new one.
To change the battery, proceed as follows:
• Remove the mounting plate by turning the smoke detector and take it off (turn the upper part
counter-clockwise to the left, see marking "
• Replace the 9 V block battery. Connect a 9 V block battery to the battery cable located inside
the battery compartment of the smoke detector paying attention to the correct polarity.
• Put the smoke detector on the mounting plate and lock it by turning it to the right (turn the
upper part clockwise to the right, see marking "TWIST TO TIGHTEN
Due to safety reasons the smoke detector cannot be fastened to the mounting plate,
if the battery is not inserted. When a battery is inserted, it presses onto a small red
lever inside the battery compartment, which pulls a pin into the housing. Now, the
smoke detector can be mounted to the mounting plate.
TWIST TO REMOVE").
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TWIST TO REMOVE").
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Functional test
• D uring normal operation the red LED next to the "TEST" button flashes briefly every 43 sec-
onds.
• To test the alarm tone, hold down the "TEST" button for approx. 3 seconds. The smoke detec-
tor then emits a short beep and the LED flashes. This indicates that the smoke detector and
the battery are functioning correctly.
I f no alarm is audible, or if the LED does not flash, the battery may be dead. Replace the
battery and perform a new functional test. If this does not help, replace the smoke detector.
It is strongly recommended that the smoke detector is tested weekly to ensure
proper operation.
Establishing an escape plan and practising for an emergency
• Create a plan of your apartment or your house that shows all the doors and windows, and
allocate two escape routes for each room, if feasible. A rope ladder may be necessary for
windows on the second-floor.
• Call a family meeting in order to discuss the escape plan and explain to each person what to
do in case of fire/smoke.
• Arrange for a meeting place outside of your home.
• Familiarise everyone with the alarm of the smoke detector; everyone must know that when
this sound is heard, everyone must leave the house immediately.
• P ractice a smoke/fire drill at least every 6 months. Exercises will help you to put your evacu-
ation plan to the test before an actual emergency situation may arise. It may happen that you
cannot reach your children in a case of fire. It is important that they know too, what to do and
how to behave.
What to do in case of an alarm?
• If the smoke detector detects smoke, it will emit a loud alarm sound. The alarm stops when
the air is free from smoke again.
• In case of an alarm leave the home or the house immediately following the escape plan you
have created. Every second counts; do not waste time by getting dressed or trying to take
your valuables with you.
• D o not open any door without first touching the surface. If the door is hot, or if you see smoke
coming in from under the door, do not open the door! Use the alternative escape route in-
stead.
If the surface of the door is cool, press your shoulder against it, open the door slightly and be
ready to slam it back again, if heat and smoke penetrate from the room behind it.
• I f the air is filled with smoke, stay close to the floor. Breathe through a cloth (if possible)
moistened with water.
• When you have left the apartment or the house, go to the agreed meeting place and make
sure everyone is there.
• Call the fire department from the house of your neighbour; do not call from your own!
• D o not go back into the apartment or the house until the fire brigade consents.
Nuisance alarm
Cigarette smoke or steam produced while cooking can active the smoke detector. Nuisance
alarms are also possible in case of exposure to dust when grinding (e.g. when renovating a
room) and if too much hair spray/deodorant is sprayed in a room, or similar.
Smoking in a room will not set off the smoke detector in general; only if the smoke is
blown directly towards the smoke detector it will trigger an alarm.
If the smoke detector gives an alarm, check first whether the fire is real. If fire or smoke is
discovered, alert your family, and everyone must leave the building. Call the fire department.
If there is no fire or smoke, check whether the above-mentioned reasons could have triggered
the alarm.
Maintenance and cleaning
Apart from the occasional battery change, the product is maintenance-free.
Clean the product with a soft, clean, dry cloth.
Dust on the smoke detector can be easily removed with a soft, clean, long-haired brush or a
vacuum cleaner; this should be done in rooms with a high dust load (e.g. in a bedroom) at least
once a year.
Never use aggressive cleaning agents or chemical solutions since these might damage the
housing or impair the operation.
For operational safety, you should replace the smoke detector for a new one after
8 - 10 years since the smoke chamber and the electronic system are affected by
ageing. Replacement may also be necessary after a "real" fire.
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