50cm min.
Multi-Storey Dwellings
Install a smoke alarm on every floor of a multi-floor dwelling, as shown in Fig. 2.
Fig. 2 – Multi-storey dwelling
Enhanced Safety
To improve early detection performance and safe evacuation, consider
installing additional smoke alarms as follows.
•
At least of two smoke alarms.
•
Inside every bedroom.
•
At both ends of a bedroom hallway if the hallway is more than 12 m.
•
Inside every room where one sleeps with the door partly or completely
closed, since smoke could be blocked by the closed door, and a hallway
alarm may not wake up the sleeper if the door is closed.
•
At the bottom of the basement stairwell.
•
Second-floor smoke alarms at the top of the first-to-second floor stairwell.
•
In your living room, dining room, family room, attic, utility and storage
rooms.
Be sure no door or other obstruction blocks the smoke path to the smoke
alarm.
Installation Location
Install smoke alarms as close to the centre of the ceiling as possible, away
from light fittings and air-conditioning ducts. If this is not practical, put the alarm
on the ceiling, no closer than 50 cm from any wall or corner as shown in Fig. 3.
Fig. 3 – Smoke alarm location from walls
If some of your rooms have sloped, peaked, or gabled ceilings, try to mount
alarms 0.9 m measured horizontally from the highest point of the ceiling.
Where Not to Install Your Smoke Alarm
Nuisance alarms occur when smoke alarms are installed where they will not
work properly. To avoid nuisance alarms, do not install smoke alarms in the
following situations.
•
In or near areas where combustion particles are present, such as
kitchens with few windows or poor ventilation, garages where there may
be vehicle exhaust, near furnaces, combustion heaters, and space
heaters. Combustion particles are the by-products of something that is
burning, which the smoke alarm may detect.
•
Within 6 m of kitchens where combustion particles are normally present.
If a 6 m distance is not possible, e.g. in a mobile home, try to install the
smoke alarm as far away from the combustion particles as possible,
preferably on the wall. Ensure the area is well ventilated.
•
In dead-air areas, where ventilation systems cause air-flow that would
not pass through the smoke alarm sensing chamber. Avoid also air-flow
from areas where normal combustion particles are expected, such as
kitchens. Fig. 4, which indicates the correct and incorrect smoke alarm
locations.
Fig. 4 – Dead-air areas
•
In damp or very humid areas, or within 3 m of bathrooms with showers.
Moisture in humid air can enter the sensing chamber, then condense into
droplets upon cooling, which can cause nuisance alarms.
•
In very cold or very hot areas, including unheated buildings or outdoor
rooms. If the temperature rises above or falls below the operating range
of smoke alarm, it may not function properly. The temperature range for
your smoke alarm is 0 °C ~ 45 °C.
•
In very dusty or dirty areas. Dirt and dust can build up on the smoke
alarm’s sensing chamber, to make it overly sensitive. Additionally, dust
or dirt can block openings to the sensing chamber and limit the smoke
alarm from sensing smoke.
•
Near fresh air vents or high draft areas like air conditioners, heaters or
fans, fresh air vents and drafts, which can drive smoke away from smoke
alarms.
•
In dead air spaces, which are often at the top of a peaked roof or in apex
of ceilings and walls. Dead air may prevent smoke from reaching a
smoke alarm. See Fig. 3 and 4 for recommended mounting locations.
•
In insect-infested areas. If insects enter a smoke alarm’s sensing
chamber, they may cause a nuisance alarm. Where insects are a
problem, get rid of them before installing the smoke alarm.
•
Near fluorescent lights. Electrical “noise” from fluorescent lights may
cause nuisance alarms. Do not install smoke alarms within 1.5 m of such
lights.
In the above locations, a heat alarm could be installed as additional protection.
Also the product shall not be contaminated by paint.
Installation
Please read the previous section
Installation Preparation
, before
commencing installation.
Installing the Smoke Alarm Mains and Interconnection Wiring
WARNING
: To avoid the electrical shock hazard, turn off power to the
area where you plan to install the alarm at the fuse box or circuit
breaker box.
WARNING
: Connect the smoke alarm to a continuous source of mains power.
Ensure the mains power cannot be inadvertently switched off.
1.
Unhinged the smoke alarm from the base by pressing the PUSH button
located on the side of the base part (see Fig. 5).
Fig. 5 – Press PUSH to unhinge base
2.
Place the bracket on the ceiling and mark drill hole locations through the
slots available in the base.
3.
Remove the smoke alarm from the ceiling.
4.
Drill two 5 mm (3/16-inch) holes at the marks and insert the plastic
mounting plugs (supplied), or other mounting solution (depending on the
ceiling type).
5.
Run the mains wiring. Use wiring with conductors of 1 mm
2
~ 2.5 mm
2
cross-sectional area. Wiring should have an insulation resistance of at
least 300 V.
6.
Open the terminal cover to access the terminal screws and install the
wiring as shown in Fig. 6.
Key
L AC 230 V mains live/active
E/LOOP Earth or loop
N Neutral / interconnection common
I Interconnection
Fig. 6 – Mains wiring terminals and mounting slots
7.
Where interconnection to other ZT-MS AC/DC smoke alarms is used,
install the interconnection wiring as shown in Fig. 7.
WARNING
: Take care to ensure the insulation does not get clamped by
the terminal contact.
WARNING
: Do not connect this smoke alarm to any device other than another
ZT-MS smoke alarm, ZT-MH heat alarm or ZT-MSH smoke and heat alarm.
Connecting anything else to this smoke alarm may prevent it from working
properly.
WARNING
: To avoid the electrical shock hazard, do not use old wiring that
may have been used for mains voltages. Use wiring with conductors of 1 mm
2
~ 2.5 mm
2
cross-sectional area. Wiring should have an insulation resistance of
at least AC 300 V.
Up to 24 ZT-MS smoke alarms can be interconnected, with a maximum cable
length of 250 m.
Fig. 7 – Interconnect wiring
8.
After all wiring is installed, close the terminal cover.
9.
Insert the ceiling plugs and attach the bracket to the ceiling with the
screws supplied.
Blue
Live/Active
Brown
Inter-connecled
Neutral
Earth Loop
