Nexa FS-558/RF User manual

TECHNICAL DATA
Power source DC 2 x 1.5V AA battery
Battery: Gold Peak Group: GP 15A LR6 or Energizer: E91
Radio frequency 433 MHz
Range, clear line of sight up to 20 m
Alarm signal 85 dB (A) at 3 metres
Operating temperature 5°C – 45°C
Ambient humidity 10 – 90 %
Temperature sensors 54-70 °C (EN-54)
This instruction folder contains important information
on correct installation and maintenance of your smoke
alarm. Read through the whole folder before installing
it, and keep the folder for future reference.
Nexa’s FS-588/RF smoke alarm is designed to detect
smoke particles. It has a built-in temperature sensor to
provide an early warning in the event of a fire (as long
as it is positioned and maintained correctly).
Primary features:
• Built-in temperature warning device
• High levels of sensitivity and stability
• Test and pause functions
• LED shows normal function
• Signal on low battery voltage
• Can be connected in series with up to 12 smoke alarms
IMPORTANT
• The radio range may vary depending on the location, the
design of the building and the materials used in the building.
• Do not remove or disconnect the batteries to stop false
alarms as this will disable the vital function of the smoke
alarm. Open windows or ventilate the air around the smoke
alarm in order to stop it, and/or press the pause button.
• The smoke alarm is intended for use for use in single-
family homes. In multiple-occupancy buildings, each
home must be equipped with its own smoke alarms.
• This smoke alarm is not suitable for use in buildings that
are not used for residential purposes. The smoke alarm
is no substitute for a full alarm system that is required
by law or by the fire authorities.
• The smoke alarm detects combustion particles in the air
(smoke). It does not react to flames or gas.
• The smoke alarm is designed to emit an alarm signal if a
fire is developing.
• The smoke alarm should be tested every week and
replaced every ten years.
POSITIONING THE SMOKE ALARM
For the smoke alarm to provide an early warning, it has to
be installed in the location where the re starts. Therefore,
Nexa recommends that you install smoke alarms in each
room and on all oors.
Single-level home: To achieve minimum protection,
position the alarm in the entrance hall between the living
areas (including the kitchen) and the sleeping areas.
Position it as close as possible to the living areas, and
make sure the alarm can be heard by anyone in the
bedrooms. See Figure 1, for example:
Multi-storey home: To achieve minimum protection,
position and alarm in the stairwell (at ground level) and
another alarm above the landing on the top oor, as well
as an alarm on the ceiling in the basement at the foot of
the stairs. This covers the basement level, but not crawl
spaces and unfurnished attics.
See the example in Figure 2.
Ceiling installation
Hot smoke rises and spreads, so installing your smoke alarm in
a central location on the ceiling is recommended. Avoid areas
where air does not circulate, e.g. corners. Also keep it away
from objects that may prevent the free ow of air. Position the
device at least 30 cm from light ttings or interior ttings that
may prevent smoke/heat reaching the detector. Position it at
least 1 metre away from the wall. See Figure 3A.
Wall mounting, if ceiling mounting is not possible
Avoid installing the device a long way into a corner.
Position the upper edge of the smoke alarm at least 15 cm and
no more than 30 cm away from the ceiling. See Figure 3A.
Sloping ceilings
In the case of sloping surfaces or ceilings that move up
towards a ridge, the detector must be installed 90 cm from
the highest point, measured horizontally, because still air
under the ridge may prevent smoke reaching the device.
See Figure 3B.
NOTE: There must be an alarm in every room (except the
kitchen, bathroom and garage) to provide recommended/
maximum protection. DO NOT POSITION AN ALARM IN THE
KITCHEN or BATHROOM as cooking smells or steam may
activate the alarm. DO NOT POSITION AN ALARM IN THE
GARAGE as there is a risk of it being triggered by exhaust fumes.
INSTALLATION
1. Remove the mounting plate on the back of the
smoke alarm by rotating the mounting plate
counterclockwise.
2. Insert 2 x AA / LR6 batteries. Make sure you are using
the correct polarity (+/-).
3. Test and programme the smoke alarm – see the
sections TESTING and PROGRAMMING.
4. Install the mounting plate in a selected location on the
ceiling. Take care when positioning your smoke alarm.
5. Place the smoke alarm on the mounting plate and rotate
the smoke alarm clockwise until it clicks into place.
6. Press the test button to check that smoke alarm is
working correctly.
TESTING
Test your smoke alarms by pressing the test button. Your
smoke alarm will respond by emitting an alarm signal.
• Test your alarms both before and after installation so
as to be sure that they are working.
• Only test your alarms using the test button. Never use
a naked ame as this may destroy the smoke alarm.
• Get into the habit of testing your smoke alarms once a week.
Testing interlinked alarms: It takes up to 30 seconds
for all interlinked alarms to respond/emit an alarm.
HOLD DOWN THE TEST BUTTON until all smoke
alarms have emitted an alarm.
PROGRAMMING
The FS-558 / RF is equipped with RF transmitter
and receiver to communicate with each other. For
this to work, the re alarms must be connected by
programming.
Select one of the smoke alarms as the master unit and
mark it with an M for ease of recognition.
During programming, the master device sends out radio
code to the other smoke alarms to interconnect them.
1. Press the master unit test button for about 15
seconds until the LED indicator lights up with a solid
light. The master unit is now in programming mode
and ready to hand out radio code the other smoke
alarms. The master unit stays in programming mode
for about 30 seconds before returning to normal
mode.
2. With the master unit in programming mode, press
and hold the slave unit’s test button until the LED
indicator is solidly lit (1-3 seconds), release the
button, and then press it again. Both the master
unit and slave unit LED indicators will now blink
quickly for 2 seconds. This shows that the two are
interconnected.
3. Repeat step 2 with all slave units to be connected to
the same system.
4. Quit programming by pressing the test button on the
master unit so that the LED indicator goes out.
HALL-
WAY
BASEMENT
LIVING ROOM
BATHROOM
KITCHEN
BEDROOM
BEDROOM
BEDROOM
BEDROOM
HALLWAY
Maximum /
recommended
protection
Minimum
protection
CEILING
WALL
BEST IN THE
MIDDLE OF THE ROOM
Min. 1 m
Min.
15 cm
Max.
30 cm
BATHROOM BEDROOM
90 cm
LIVING
ROOM
LANDING
KITCHEN
HALL-
WAY
BASEMENT
LIVING ROOM
BATHROOM
KITCHEN
BEDROOM
BEDROOM
BEDROOM
BEDROOM
HALLWAY
Maximum /
recommended
protection
Minimum
protection
CEILING
WALL
BEST IN THE
MIDDLE OF THE ROOM
Min. 1 m
Min.
15 cm
Max.
30 cm
BATHROOM BEDROOM
90 cm
LIVING
ROOM
LANDING
KITCHEN
FIGURE 1. Single-level home
FIGURE 3A FIGURE 3B
FIGURE 2. Multi-storey home
LOCATION ON CEILING AND WALL
OPTICAL SMOKE ALARM FOR
WIRELESS CONNECTION IN SERIES
Model: FS-558/RF

DELETING PROGRAMMING (resetting)
1. Press and hold the test button on the device to be
reset for about 20 seconds until the LED indicator
starts ashing quickly, then release the button. The
LED indicator is now lit solidly.
2. When the LED indicator is lit solidly, press the test
button twice. Upon successful reset, the re alarm
sounds with a short beep.
3. Repeat steps 1 and 2 with all devices to be reset.
NOTE: everal factors may cause wireless communication
to interfere. Therefore, you should test fire detectors
every week to check that the communication between
the devices is working properly.
OPERATION
When operating normally, the smoke alarm’s LED
ashes every 40 seconds. This means that the battery
and device are working correctly. If the alarm detects
smoke, it will emit a loud, pulsing alarm and the red LED
will ash until the smoke has gone.
PAUSE FUNCTION
The smoke alarm has a combined button for the test
and pause functions. You can use the pause function to
stop the alarm signal if the alarm is triggered due to a
false alarm. The pause function is activated by holding
down the test/pause button while the device is emitting
an alarm. The alarm will be stopped for 10 minutes.
The smoke alarm is reset to normal sensitivity after the
end of the 10-minute pause period. If necessary, press
the pause button again to pause the alarm again. If you
have smoke alarms connected in series, you can pause
all interlinked devices by pressing the test and pause
button on the device that triggered the alarm.
REPLACING THE BATTERIES
How often the batteries need to be replaced is dependent
on the battery type. Where possible, get into the habit of
replacing the batteries once a year, ideally on a specic date.
1. Rotate the smoke alarm counterclockwise to remove
it from the mounting plate.
2. Remove the old batteries.
3. Insert new batteries. Check that the polarity is
correct, +/-.
4. Place the smoke alarm on the mounting plate and
rotate the smoke alarm clockwise until it clicks into
place.
5. Press the test button to test the smoke alarm.
ALARM SIGNALS
The FS-558/RF emits various alarm signals. The alarm that
detected smoke or heat emits a different audible signal so
that you can identify which alarm triggered the alert.
COMMON CAUSES AND HOW TO AVOID
FALSE ALARMS
Smoke alarms detect and react to smoke particles in the
air. These smoke particles are what cause the smoke
alarm to sound. This function means that the smoke alarm
may also react to dust particles, moisture or other particles
in the form of pollen, insects, etc. These factors frequently
cause false alarms.
Manufacturer:
Nexa Trading AB, Sweden
The Declaration of Performance (DoP) can
be found on our website – www.nexa.se
STATUS RED LED ALARM SIGNAL
Normal mode Flashes once
every 40 seconds None
Replace batteries/
low battery voltage
Flashes once
every 40 seconds
Short audible signal
every 40 seconds
Fault notification None Short audible signal
every 40 seconds
Pause mode Flashes once
every 8 seconds None
STATUS RED LED ALARM SIGNAL
The smoke alarm
detects smoke Flashes
Repeating:
3 long audible signals –
pause
The smoke
alarm detects a
temperature increase
Flashes
Repeating:
3 short audible signals –
pause
Devices connected
wirelessly and
receiving signal
from triggered alarm
Flashes
Repeating:
2 short audible signals –
pause
FAULT SOURCE REMEDY
Steam and moisture. A false alarm may be triggered if the
smoke alarm is positioned to close to a bathroom, laundry
room or other areas where ambient humidity is high.
Position the smoke alarm at least 2 metres away from the
bathroom, laundry room or other locations where ambient
humidity may be high.
Dust and dirt. The smoke alarm will attract a certain amount
of dust and pollen particles as the air passes freely through the
detection chamber. This may lead to false alarms. The smoke
alarm may also become more sensitive on account of this,
which may result in unwanted alarms.
Vacuum the smoke alarm regularly, use a plastic nozzle so as
not to damage the electronics. Avoid installing smoke alarms
in locations where there is a lot of dust and dirt. Ideally, place
a “hood” over the smoke alarm or remove it entirely while you
are carrying out renovations at home.
Draughts, dust and air flows. False alarms may be caused if the
smoke alarm is placed too close to doors, windows, ventilation
systems, fans, air ducts, heat pumps and suchlike. This may
cause dust particles to fly up and into the detection chamber.
Do not install smoke alarms in draughty locations or close to
windows or doors, ventilation, fans, air ducts, heat pumps
and suchlike. Find a better location for your smoke alarm,
further away from draughts and air flows.
Temperature variations may cause condensation in the
detection chamber – if the smoke alarm is placed in a room
where windows are opened for ventilation in winter, for
example, or close to exits, balcony doors or other locations
where conditions switch between hot and cold.
Avoid installing smoke alarms in rooms where the temperature
changes rapidly or close to windows or doors that are opened
and closed frequently. Move the smoke alarm to a location
where the temperature is more consistent and stable.
Adverse location. Positioning the smoke alarm incorrectly in
an unstable indoor environment may lead to false alarms due to
draughts, close proximity to electrical devices (EMC) and lighting.
Position smoke alarms at least 5 metres away from
fireplaces, stoves or other heaters. 2 metres away from
ventilation ducts, heat pumps and air conditioning.
1 metre away from lamps and fluorescent tubes.
SMOKE ALARM WARRANTY
This smoke alarm has a three-year limited warranty against
manufacturing faults. (Valid from the date of purchase.)
The batteries are not covered by the warranty. The
warranty liability is limited to the value of a corresponding
smoke alarm. Defective smoke alarms must be returned
to the dealer together with a description of the problem.
Compensation of a new smoke alarm of the same or an
equivalent type will be given in the event of an approved
complaint. A receipt conrming the date of purchase must
be shown when submitting a complaint.
MAINTENANCE AND CLEANING
The smoke alarm should be cleaned regularly, and
at least twice a year. Clean your smoke alarm by
vacuuming externally along the opening to the optical
chamber to remove any dust or dirt.
IMPORTANT: Do not try to open the hatch to clean inside
the smoke alarm as this will invalidate your warranty.
RECYCLING
• The device mainly comprises materials that can be recycled.
• Do not dispose of the packaging, device and
packaging contents with household waste without
following applicable provisions.
• This product must be recycled according to EU
Directive 2002/96/EC on waste from electrical and
electronic equipment (WEEE).
• For more information, phone your dealer or the local
authority responsible for waste disposal.
Test button
Optical chamber
Nexa Bridge and the FS-558/RF smoke alarm allow
you to easily create an automated system that
is triggered when the smoke alarm is activated.
For example, you can send a notication to your
mobile phone, sirens can be activated and lights
can be switched on.
Smoke alarm for household
17
0359
Nexa Trading AB
Karl Johansgatan 152
414 51 Göteborg, Sverige
NEXA13215-CPR-001
EN14604:2005/AC:2008