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Checking you can hear the Smoke & Heat Alarms
With the Alarm sounding in its intended location, check you are
able to hear it in each bedroom with the door closed, above the
sound of the radio. The radio should be set to a reasonably loud
conversation level. If you can't hear it over your radio the
chances are that it wouldn't wake a person.
If a Smoke Alarm is too far away for it to wake a person, it is best
to lnterconnect to another Smoke Alarm or Heat Alarm near the
bedroom. The alarms can be interconnected - when one alarm
senses smoke, all interconnected alarms respond (see below
for further details).
LOCATIONS TO AVOID
Don't place Smoke Alarms in any of the following areas:
·
Bathrooms, kitchens, shower rooms, garages or other
rooms where the smoke alarm may be triggered by steam,
condensation, normal smoke or fumes. Keep at least 6
metres (20 feet) away from sources of smoke.
Don't place Heat Alarms in any of the following areas:
·
Bathrooms, shower rooms or other room where the unit
may be triggered by steam or condensation.
Don't place Smoke or Heat Alarms in any of the following areas:
·
Places where the normal temperature can exceed 40°C or
be below 4°C e.g. attics, furnace rooms etc. directly above
ovens or kettles, as the heat/steam could cause nuisance
alarms.
·
Near a decorative object, door, light fitting, window mould-
ing etc., that may prevent smoke or heat from entering the
Alarm.
·
Surfaces that are normally warmer or colder than the rest
of the room (for example attic hatches, uninsulated exterior
walls etc). Temperature differences might stop smoke or
heat from reaching the unit.
·
Next to or directly above heaters or air conditioning
vents, windows, wall vents etc. that can change the direc-
tion of airflow.
·
In very high or awkward areas (eg. over stairwells) where it
may be difficult to reach the alarm (for testing, hushing or
battery replacement).
·
Locate away from very dusty or dirty areas as dust build-up
in the chamber can impair performance. It can also block the
insect screen mesh and prevent smoke from entering the
smoke detector chamber.
·
Locate the unit at least 1 metre from dimmer controlled lights
and wiring - some dimmers can cause interference.
·
Locate unit at least 1.5m and route wiring at least 1m away from
fluorescent light fittings as electrical "noise" and/or flickering
may affect the unit. Do not wire into the same circuit as fluores-
cent lights or dimmers.
·
Do not locate in insect infested areas. Small insects get-
ting into the smoke detector chamber can cause intermittent
alarms. Insects and contamination on the Heat Alarm sen-
sor can increase its response time.
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·
POSITIONING SMOKE & HEAT ALARMS
The locations must comply with applicable building regulations.
Hot smoke rises and spreads out, so a central ceiling position is
the preferred location. The air is "dead" and does not move in
corners, therefore Smoke & Heat Alarms must be mounted
away from corners. Place the unit at least 0.5m ) from any light
fitting or decorative object which might obstruct smoke / heat en-
tering the Alarm. Keep at least 0.5m away from walls. See fig-
ure 4. (Smoke Alarms should be located directly on the ceiling or
up to 0.57m below it. Heat Alarms should be located directly on
the ceiling or up to 90mm below it).
Wall mounting is not recommended for these Alarms.
Sloping Ceiling
In areas with sloping or peaked ceilings install your Smoke/Heat
Alarm 0.9m from the highest point measured horizontally (see
figure 5), because "dead air" at the apex may prevent smoke
from reaching the unit.
Figure 4
Figure 5
IDEAL IN CENTRE
DEAD AIR
OF CEILING
SPACES
900mm
90cm
(3 ft)
NEVER WITHIN
300mm OF ANY
WALL / CORNER
INSTALLING SMOKE & HEAT ALARMS
The Alarm is designed to be permanently mounted , using it's
own built-in terminal block to connect it to the mains. The mount-
ing plate can be screwed directly to the ceiling. Alternatively it
can be screwed to a standard junction box. It requires a current
of 40mA. The Alarm must not be exposed to dripping or splash-
ing. There are important markings on the underside of the alarm.
IMPORTANT PRECAUTION:
Do not install the actual
alarm itself in new or renovated buildings until all work is
completed (including floor coverings) and the building has
been fully cleaned. The wiring can be installed when appro-
priate. (Excessive dust and debris from building work can
contaminate the smoke chamber or heat sensor and cause
problems, it will also invalidate the guarantee). If it must be
installed, cover it completely, particularly around the
edges, with a dust cover (eg. with the elasticated cover sup-
plied or a plastic bag), until all cleaning is finished.
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The Alarm must not be connected when the house wiring insula-
tion is being checked with high voltages.
WARNING: Mains operated Alarms should be installed and in-
terconnected by a qualified electrician in accordance with local
institutions. Failure to install this Alarm correctly may expose the
user to shock or fire hazards.
An ALL-POLE MAINS SWITCH with a contact separation of at
least 3mm in each pole shall be incorporated in the electricial in-
stallation of the building.
WARNING: The Alarm must be continuously powered 24 hours
a day so it is important that it is not on a circuit that can be turned
off by a switch.
INSTALLATION
1. Select a location complying with the above advice.
2. Disconnect the AC mains supply from the circuit that is going
to be used.
3. Remove the mounting plate from the Smoke/Heat Alarm by re-
leasing the tamper-proof catch with a small screwdriver as shown in
figure 1 and sliding the Alarm from the plate.
4. The house wiring must be connected to the terminal block on
the mounting plate as follows:
L: Live - connect to the house wires coloured brown, red or
marked L.
8
PAGE 6,7,8&9
B13729
REV-1
N: Neutral - connect to the house wires coloured blue, black or
marked N.
IC: Interconnect - connect to the third core. (If you are not inter-
connecting units, do not connect anything to the IC terminal).
(See below for information on interconnecting).
Warning: Mixing Live & Neutral wires will damage intercon-
nected alarms.
We recommend the use of 6243Y mains cable when intercon-
necting units. Use the third core for interconnection.
Do not use an earth wire for the interconnect line.
Lift off the wiring cover as shown in Fig 6.
CEILING GASKET
(MUST BE IN PLACE)
Figure 6
INSERT SCREWDRIVER
TO LIFT AND REMOVE
WIRE COVER
N.B. The alarm does not need to be earthed. However the termi-
nal marked
is provided for the convenience of the installer so
that any copper earth wire or cable coloured green or green &
yellow, can be safely terminated.
TERMINAL
L - LIVE
SCREWS
IC - INTERCONNECT
KNOCKOUT FOR
N - NEUTRAL
SURFACE CABLE ENTRY
(LEAVE TOP INTACT)
(TRUNKING)
Figure 7
EARTH
(IF PRESENT)
RECESSED WIRING
ENTRY
To interconnect the Alarms connect all the IC terminals together
as shown in Figure 8.
5. If the mains wires are recessed, bring the wires through the
rear hole in the mounting plate as shown in figure 7.
If the mains wires are being brought along the surface:
(a) position the mounting plate so the cable trunking is as shown
in figure 7.
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