Ei Electronics EI105C User Manual

Basic Information about your Smoke Alarm

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A Smoke Alarm is an early warning device. Used correctly it can
give you and your family valuable extra time to escape.

Note:-

When the battery is first connected the Alarm may sound for

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2-3 seconds and/or the LED may flash quickly for 10 sec
onds - this is normal.

A Smoke Alarm does not prevent fires.

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Install correctly, in the centre of the ceiling if possible.

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Test monthly.

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When the Alarm beeps and

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LED flashes at the same time

replace battery.
If the Alarm beeps without

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the LED flashing at the same
time then clean unit as this is the automatic test feature tell
ing you the chamber is degraded.

Plan your escape route.

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Proper protection may require more thanoneSmoke Alarm.

·

If you have any doubt or query about Smoke Alarms consult

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the supplier or your local Fire Brigade.

Locating your Smoke Alarm

Sufficient smoke must enter your Smoke Alarm before it will re­spond. Your Smoke Alarm needs to be within 10 paces (23 feet)
of the fire to respond quickly. It also needs to be in a position
where its alarm can be heard throughout your home, so it can
wake you and your family in time for you all to escape. A single
Smoke Alarm will give some protection if it is properly installed,
but most homes will require two
early warning is given. For maximum protection you should put
individual Smoke Alarms in allthe rooms where fire is most likely
to break out.

Your first Smoke Alarm should be located between the sleeping
area and the most likely sources of fire (living room or kitchen for
example). But it should not be more than 10 paces (seven me
tres) from the door to any room wherea fire might start and block
your escape from the house.

(a) Single Storey Dwelling.

If your Home is on one level (a bungalow or mobile home for ex
ample) you should put your first Smoke Alarm in a corridor or
hallway between the sleeping and living areas. Place it as near
to the living area as possible, but make sure you can hear it
loudly enough to wake you in the bedroom. (for example, see
figure 1)

If your bungalow is very large and the corridor or hallway is more
than say 22 paces (15 metres) long, one Smoke Alarm will not
be sufficient. This is because no matter where it is located it will
be more than 7.5 metres from potential fires.

or more to ensure that a reliable

Recommended protection, Figures 1,2 & 3

Minimum protection

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each storey

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each sleeping area.

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every 7.5 metres (25 ft) of hallways and rooms.

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Maximum protection.

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­All rooms (except bathroom & kitchens)

Figure 1: Single Storey Dwelling

BEDROOM

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BEDROOM BEDROOM

Figure 2: Single Storey Dwelling with

separate sleeping areas

BEDROOM

BEDROOM

DININGKITCHEN

LIVING

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Figure 3: Multi Storey Dwelling

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KITCHEN

DINING

RECREATION

BEDROOM

In houses with more than one sleeping area, Smoke Alarms
should be placed between each sleeping area and the living
area (for example, see figure 2).

b) Multi Storey Dwellings

If your home is on more than one level the best place for your
first Smoke Alarm is in the downstairs hallway near the stairs.
(for example see figure 3). This is because smoke is likely to be
detectable in the hallway before it reaches the upstairs landing
and bedrooms. Your second Smoke Alarm should be upstairs,
because the downstairs Smoke Alarm is unlikely to detect the
smoke from a fire in a bedroom upstairs.

(c) Maximum Protection

For maximum protection you should put individual Smoke
Alarms in all the rooms where fire is most likely to break out
(apart from the locations to avoid, mentioned below). The living
room is the most likely placefor a fire to start at night, followedby
the kitchen and then the dining room. You should also consider
putting Smoke Alarms in any bedrooms where fires might occur,
for instance, where there is an electrical appliance such as an
electric blanket or heater, or where the occupant is a smoker.
You could also consider putting Smoke Alarms in any rooms
where the occupant is unable to respond very well to a fire start­ing in the room, such as an elderly orsick person or a very young
child.

(d) Checking you can hear your Smoke Alarm

With the Smoke Alarm sounding in its intended location, check
you are able to hear it in each bedroom with the door closed,
above the sound of your 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 you.

If a Smoke Alarm istoo far away for it towake you, it is bestto link
it to another Smoke Alarm near the bedroom. The Interconnect
Smoke Alarms EI105C and EI100C are designed for this - when
one alarm senses smoke, all connected alarms respond.

Positioning your Smoke Alarm

Figure

IDEAL IN CENTRE OF CEILING

DE AD AIR S PACES
NEVER WITHIN 15cm

OF ANY COR NE R

Figure 5

90cm

(a) Ceiling Mounting

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 Alarms must be mounted away from
corners. Place the unit at least 30cm (12 inches) from any light
fitting or decorative object which might obstruct smoke entering
the Smoke Alarm. Keep at least 15 cm (6 inches) away from
walls and corners. See figure 4.

(b) Wall Mounting

When a ceiling position is not practical (for example on a ceiling
having exposed beams or joists, or built-in radiant heating) put
the top edge ofyour Smoke Alarm between 15 and 30 cm (6 and
12 inches) below the ceiling. Keep atleast 15cm(6 inches)from
corners. (see figure 4).

(c) On a sloping Ceiling

In areas with sloping or peaked ceilings install your Smoke
Alarm 90 cm (3 feet) from the highest point measured horizon
tally (see figure 5), because “dead air” at the apex may prevent
smoke from reaching the unit.

(d) Locations to Avoid

Don’t place your Smoke Alarm in any of the following areas:

· Bathrooms, shower rooms, garages or other rooms

where the smoke alarm may be triggered bysteam, conden­sation, normal smoke or fumes.

· Attics or other places where extremes of temperature may

occur (below 4°C/34°F or above 40°C/104°F).

· Near a decorative object, door, light fitting, window

molding etc., that may prevent smoke from entering the

Smoke Alarm.

·

Surfaces that are normally warmeror colder than the rest of
the room (for example attic hatches, uninsulated exterior
walls etc). Temperature differences might stop smoke 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.

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In very high or awkward areas where it may be difficult to
reach the alarm (for testing, battery replacement etc).

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Locate unit at least1.5m (5feet) and route wiring at least 1m
(3 feet) away from fluorescent light fittings as electricial
“noise” and/or flickering may affect the unit.

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Locate away from very dusty or dirty areasas dust build-up
in the chamber can make unit too sensitive and prone to
alarm. It can also block the insect screen mesh and prevent
smoke from entering the chamber.

·

Do not locate in insect infested areas. Small insects get
ting in to the chamber can cause intermittent alarms.

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(e) Nuisance/False Alarms

If, when the alarm goes off, there is no sign of smoke heat or
noise to indicate that there is a fire, you should get your family
into a safe place, before you start investigating.

Check the house carefully in case there is a small fire smoulder
ing somewhere.

Check whether there is some source of smoke or fumes, for ex
ample cooking fumes being drawn past the Smoke Alarm by an
extractor.

If there are frequent nuisance/false alarms it may be necessary
to re- locate the device away from the source of the fumes.

Fanning vigorously with a newspaper or similar will help silence
alarm.

Installing your Smoke Alarm

(a) Attaching to Ceiling or Wall.

(NB: For Interconnecting see page 9)

PUSH BACK

TO EASE

BATTERY

REMOVAL

Figure 6

BATTERY

SCREW HOLE

BATTERY

INSTALLATION

DATE

OPEN TAB

SCREW

HOLE

TEST

BUTTON

CHAMBER

LABEL

The Smoke Alarm is battery operated and needs only wiring, if
the Inter-Link facility is being used.

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1. Pull cover open at tab. Remove cover from base by separat
ing at rear snap-in hinges by rotating cover backwards.

2. Place the base on ceiling or wall exactly where you want to
mount the unit. With a pencil, mark the location of the screw
holes.

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3. Taking care to avoid any electrical wiring in the ceiling or wall,
drill a hole through the centres of the marked locations. Push

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the plastic Screw Anchors provided into the drilled holes. Screw
in firmly.

(b) Connecting the battery

The battery is easily removed from the holder by holding back
one of the plastic clips while lifting the battery with the other
hand.

Snap Battery Connectors to Battery. They fit together only one
way.

Figure 7

Gently push Battery into Battery Holder

With a pencil, write thedate of battery installation on theinside of
the cover to remind you when to replace the battery.

To close the cover match up snap-in hinges and gently press to
gether until base and cover snap together. Test the installed
Smoke Alarm - see section “Manually Testing your Smoke
Alarm”.

NOTE: You may hear a loud chirp when attaching the Battery
Connectors to the Battery.

Battery Missing indicator

Some models are fitted with a warning flag which pops up when
the battery is removed. This prevents the cover from closing
when there is no battery in the unit. When the battery isbeing in
stalled or changed, this flag must be held down while gently
pushing the Battery into the Battery Holder. (Figure 7(a)).

Figure 7(a)

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Looking after your Smoke Alarm

(a) Automatic Self-Test

The smoke chamber automatically testsitself every 40 seconds.
If the chamber is degraded it will beep without

the LED flashing
at the same time. If this happens clean the unit. If the beeping
persists and the beep does not coincide with an LED flash, re
turn the unit for service (see “Getting your Smoke Alarm Serv
iced”)

(b) Manually Testing your Smoke Alarm

It is recommended that you test your Smoke Alarm at least once
a month to be sure the unit is working. It will also help you and
your family to become familiar with the sound of the Alarm.

When you press the Test Button it simulates the effect of smoke
during a real fire. So, there is no need to test the Alarm with
smoke.

Press and hold the Test Button until the Alarm sounds (it may
take up to10 seconds), (Figure 8). The alarm will stop sounding
shortly after the Button is released. If the alarm fails to sound,
follow this checklist.

1. Check Battery Connectors to be sure they are firmly snapped
to the Battery.

2. Replace the Battery. (Check the date marked on the Cover
when you last replaced the Battery).

3. Check forany signof contaminationsuch as cobwebs or dust
and clean the alarm as described on page 9 if necessary.

Figure 8

Figure 9

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2

WARNING: Do not test with flame.

This can set fire to the alarm and damage the house. We do not

­recommend testing with smoke as the results can be misleading

unless special apparatus is used.

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(c) Replacing the Battery

A fresh Battery should last about one year. When Battery power
is low and replacement is necessary, the Alarm will “beep” and
the LED will flash at the same time about once per minute for at
least 30 days. The battery must then be replaced. Replace the
battery if the alarm does not sound when the Test Button is

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pressed. For maximum reliability, replace batteryat least oncea

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year.

Test the alarm for correct operation using the test button when

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ever the battery is replaced.

If the Power Indicator light ceases flashing, replace the battery.
Be sure to replace the Battery as soon as possible to ensure
proper operation and to avoid a leaking Battery. Leakage could
cause damage to the Alarm, furniture, and carpeting.

For replacement batteries, refer to thelabel inside SmokeAlarm
Cover.

WARNING: Use of any other battery may be detrimental to the
operation of the Smoke Alarm.

(d) Cleaning your Smoke Alarm

Clean your Smoke Alarm regularly. Use a soft bristle brush or
the brush attachment of your vacuum cleaner to remove dust
from the sides and cover slots where the smoke enters. Keep
cover closed while cleaning. Do not vacuum or brush inside the
Smoke Alarm. To clean the cover, remove it completely and use
only mild soap and water. Dry coverthoroughly before replacing
it. WARNING: Do not paint your Smoke Alarm.

Other than the maintenance and cleaning described in this leaf­let, no other customer servicing of this product is required. Re­pairs, when needed, must be performed by the manufacturer.

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Interconnecting your Smoke Alarms

A maximum of 12 EI 105C Smoke Alarms maybe wired together
such that when one unit senses smoke all other units sound a
warning. This helps ensure smoke alarms will be heard. The unit
can be also connected to EI100C Ionization type Smoke
Alarms. Do not connect to any other device as it may damage
the unit or affect performance.

A maximum of 5,000 feet (1,500 metres) of 18 AWG (0.82mm)
wire can be used, (maximum resistance between detectors 50
ohm). The units are interconnected by wiring all the terminals
marked 1 together, and all the terminals marked 2 together (as
in figure 9 before screwing to ceiling). Draughts from wiring
openings, conduit, or mounting boxes/holes, may blow smoke
away from the sensing chamber, making it insensitive. It is es

­sential that all such openings be closed by silicone sealant or
similar.

After wiring together the Interconnect Smoke Alarms, test the
first unit by pressing the button. All the detectors should alarm

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