jablotron JA-85ST User manual

JABLOTRON ALARMS a.s.
Pod Skalkou 4567/33 46601 Jablonec n. Nisou
Czech Republic www.jablotron.com
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The JA-85ST Wireless combined smoke and heat detector
The JA-85ST Wireless combined smoke and heat detector 1 / 2 MLW55605
The JA-85ST is a wireless component of the JABLOTRON
ALARMS OASIS alarm system. It is used to detect fire hazards in
the interior of residential or commercial buildings. The detector can
be installed in mobile homes or caravans. The product is not
designed to be installed in industrial premises. The JA-85ST
detector uses wireless communication and it is powered with three
AA batteries.
The detector indicates a fire hazard using the built-in LED
indicator and acoustic signalling.
The JA-85ST consists of two independent detectors – an optical
smoke detector and a heat detector. The optical smoke detector
works on the principle detection of scattered light. It is very
sensitive to large dust particles which are present in dense smoke.
It is less sensitive to smaller particles generated by the combustion
of liquids such as alcohol. That is why the fire detector also contains a
built-in heat detector which has a slower reaction but is much better at
detecting fire which generates only a small amount of smoke.
Detector range and location
The smoke detector must be installed so that any smoke easily
drifts into the detector owing to natural thermal currents, e.g. on the
ceiling. It is suitable for residential buildings but not suitable for free
spaces, outdoor environments or interiors with extremely high
ceilings (above 5 m) where fire by-products can disperse over a
large area – the smoke would not reach the detector position.
The detectors should be installed by a trained technician with a
valid manufacturer’s certificate.
Detectors should be installed in the building according to the
project documentation. If such documentation is not available, their
position should comply with the effective standards for fire alarm
signalling systems.
The detector must always be placed in the section leading to the
exit of the building (escape route), see Fig. 1. If the building has a
floor area greater than 150 m2, installation of an additional detector
in some other suitable place is required, see Fig.2.
Fig 1 Fig 2
1. kitchen,
2. living room,
3. – 6. bedrooms
y / basic coverage
{
{
/ recommended
coverage
Fig 3
0,9 m
Fig 4 Fig 5
centre of the room, best location
acceptable location
In multi-storey flats and family houses the detector should be
installed above the stairs. It is recommended to place additional
detectors in rooms where people sleep. See Fig 3.
Installation on level ceilings
Place the detector in the centre of the room if possible. The
detector must not be recessed into the ceiling due to the possible
existence of a cool air layer on the ceiling. Never place the detector
in the corner of the room (always keep at least
0.5 m distance from the corner - see Fig 4). There is an insufficient
circulation of air in the corners.
Installation on sloping ceilings
If the ceiling is not suitable for mounting on a level surface (e.g. a
room under a roof ridge), the detector can be installed as in Fig. 5.
Walls, partitions, barriers and lattice ceilings
The JA-85ST detector must not be installed closer than 0.5 m
from any wall or partition. A narrow room with a width of less than
1.2m requires the detector(s) to be placed at a distance of at least one
third of the room’s width away. In a case when a room is separated
into sections with furniture, racks or semi partition walls which do
not reach the ceiling, the space is considered to be fully separated
if the gap between the top of these and the ceiling does not exceed
0.3 m. A free space of at least 0.5 m is required under and around the
detector. Any irregularities of the ceiling (e.g. girders) exceeding 5 % of
the ceiling height should be considered a wall and the above mentioned
limitations should apply.
Ventilation and air circulation
The detectors must not be installed directly by ventilation or air
conditioning vents. In the case of air being supplied through a
perforated ceiling, each detector must be placed so that no
perforation hole occurs within 0.6 m of the detector.
Avoid installing the detector in the following locations:
x places with poor air circulation (niches, corners, apexes of A-
shaped roofs, etc.)
x places exposed to dust, cigarette smoke or steam
x places with over-intense air circulation (close to ventilators, heat
sources, air conditioning outlets, etc.)
x in kitchens and other cooking places (because steam, smoke or oily
fumes can cause false alarms or reduce detector sensitivity).
x beside fluorescent lights or energy-saving light bulbs (electrical
interference can cause a false alarm)
x in areas with lots of small insects
Warning: Most false alarms are caused by improper detector
location.
See CEN/TS 54-14 standard for detailed installation guidelines.
Installation
When installing the detector, abide by the procedures
recommended in the previous paragraphs.
Fig 1: 1 – detector cover opening; 2 – detector cover closing; 3 – optical
status signalling; 4 – arrow showing where to insert the detector;
5 – production code; 6 – configuration terminals; 7 – battery holders;
8 – button for test
1. Open the detector cover, by turning it anti-clockwise (1)
2. Attach the plastic base to the selected place using screws
3. Use the terminals (6) to set the required detector function –
see the table below
1
ON Siren disabled 3 OFF Smoke (EN 14604 or
EN 54-7) or heat (EN
54-5)
OFF Siren enabled
(EN 14604) 4 OFF
2
ON Memory disabled 3 OFF
Smoke only (EN 14604
or EN 54-7) (not heat)
OFF
Memory enabled
(EN 54-7 and EN 54-
5)
4 ON
ON
OFF
3 ON Heat only (EN 54-5)
(not smoke)
4 OFF
3 ON Both smoke and heat
(both conditions at the
same time)
4 ON
5 ON Immediate alarm
OFF Fire alarm

The JA-85ST Wireless combined smoke and heat detector
The JA-85ST Wireless combined smoke and heat detector 2 / 2 MLW55605
Caution: When the detector is installed in caravan trailers, use only
the “smoke only“ or “both smoke and heat” settings.
4. Proceed according to the control panel installation manual.
Basic procedure:
a. Switch on the enrollment mode in the control panel.
b. When you insert all batteries into the detector, an enrollment code
is sent to the system – its sending is confirmed with a short flash
of the LED indicator (3).
c. The control panel confirms the enrollment with a flashing of the
“A“ LED on the system keypad at the corresponding position.
Note:
The detector can also be enrolled into the system by entering its
production code (5) in the O-Link program. (Enter the last 8 digits
under the bar code).
5. Insert the detector into the plastic base. The detector can be
inserted into the base in one position only. It is marked with
arrows (4) on both plastic parts. Close the detector cover by
turning it clockwise (2).
Note: Detector cover closing is blocked unless all 3 batteries
are inserted!
The mounting base must not be replaced by bases meant for
detectors without the test button consisting of pressing the
body of the detector.
Detector setting
The detector properties can be set in the Devices window in the
O-Link program and with the configuration terminals.
The Reaction option in the Devices window allows you to set the
type of reaction of the system to the activation of the enrolled
detector. The configuration terminals on the detector PCB
determine other reactions:
SIR enables deactivating the built-in siren.
MEM alarm memory signalling – if enabled, the detector LED
remains active for an additional 24 hours Signalling can also be
terminated by pressing the detector body against the base.
SMOKE and TEMP the combination of these terminals defines
whether the detector will react to smoke and heat.
INST if a reaction different than NATURAL is set in the O-Link
program, the control panel will react as set in the program.
Fire alarm
A fire alarm is signalled acoustically and optically according to
the settings.
When the conditions for fire alarm triggering are met (smoke is
detected in the room, the alarm temperature is reached, or both
conditions are met), the detector signals the danger by sounding
the siren and quick flashing the LED indicator (3).
Silencing the siren during an alarm: The siren can be silenced
by pressing the detector body against the base. The siren is
inactive for 10 minutes. If the detector still detects smoke or heat
then, the siren is reactivated.
When the need arises (e.g. in the case of a detector failure), it is
possible to postpone siren reactivation by up to 12 hours. This can
be done by pressing the detector again for 5 s after silencing the
siren. When the detector chirps, you have to release the pressure
within 1 s. The switchover to the postponed siren mode is
confirmed with 5 chirps. The detector LED flashes all the time
during the postponement.
Alarm memory: If it is enabled, alarm indication continues even
when the smoke clears or when the temperature decreases. The
slow-flashing indication lasts 24 hours unless it is terminated by
pressing the detector body.
Tamper alarm: When the detector cover is opened, the detector
sends a tamper signal.
Detector testing and maintenance
The detector should be tested at least once per month. To
test the detector press the detector against the base and wait until
the LED indicator switches on. The LED flashing signals switchover
to test mode. The LED flashes for the whole duration of the test.
When the test is complete, the LED switches off. The detector then
signals the result. If the detector beeps once, the test has been done
successfully. If a failure is discovered, the LED flashes and beeps
three times. If the battery is low, there is no acoustic signalling but
just one flash when the test is completed.
The result of a test is sent to the control panel. If the detector is
OK then the LCD keypad shows the text “Test OK”. When there is a
problem or fault then the keypad shows the text “Fault”.
The complete functioning of the detector can be tested with a test
spray (e.g.. SD- TESTER) ) or hot air (e.g a hair dryer).
If the control panel is not in the SERVICE/MAINTENANCE mode,
a fire alarm is triggered.
Warning: never test the detector with fire.
Fault indication
The detector checks its functioning. If it discovers a fault, it chirps
and flashes the LED three times and then flashes briefly three
times every 30 s.
A detector test can be carried out when a fault is signalled. To test
the detector, press its whole body against the base. During the test the
detector checks whether there is still a fault. The red LED flashes
during the testing. When the test is completed, the LED stops flashing
and then signals the result. A persistent fault is signalled by 3 flashes
and 3 beeps. If the fault has been fixed, the detector chirps briefly.
If you have not managed to fix the fault, the detector must be sent to
a service centre.
Battery replacement
The detector checks the battery status and if the batteries are
running low, the detector signals that they need replacing by short
flashes repeated every 30 s. The information is also sent to the
control panel. Replace the batteries as soon as possible.
Exchange procedure:
- If the detector is already enrolled to the system it’s
necessary to enter service / maintenance mode
- open the detector
- remove the old batteries
- press and hold the test button (8) until the LED (3) goes ON
- when the LED goes OFF , it shows the capacitors inside the
detector have been discharged
- insert some new batteries
Always replace all three batteries with the same type and
manufacturer.
Use only high-quality 1.5 V AA alkaline batteries.
Do not throw used batteries into ordinary household waste.
Deposit them at authorized collection points.
Technical specifications
Power 3 x Alkaline battery type LR6 (AA) 1.5 V / 2.4 Ah
Please note: Batteries are not included
Typical lifetime approx. 3 years
Smoke detection optical light scattering
Smoke detector sensitivity m = 0.11 - 0.13 dB/m
Pursuant to EN 14604, EN 54-7
Heat detection class A1 according to EN 54-5
Alarm temperature + 60 °C to +65 °C
Communication band 868.5 MHz, Oasis protocol
Communication range approx. 300 m (unrestricted area)
Dimensions diameter 126 mm, height 50 mm
Weight 150 g
Operating temperature range -10 to +65°C
Also complies with EN 54-25,
ETSI EN 300 220, EN 60950-1, EN 50130-4 and EN 55022,
Can be operated according to ERC REC 70-03
14 1293-CPR-0392
1293
JABLOTRON ALARMS a.s. hereby declares that the JA-85ST is in
a compliance with the relevant Union harmonisation legislation:
Directives No: 2014/53/EU, 2014/35/EU, 2014/30/EU, 2011/65/EU.
The original of the conformity assessment can be found at
www.jablotron.com - Section Downloads.
Note: Although this product does not contain any harmful
materials we suggest you return the product to the dealer or
directly to the producer after use.