Ei105 Series
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Basic Information about your Smoke Alarm
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
2-3 seconds and/or the LED may flash quickly for 10 seconds
- this is normal.
• A Smoke Alarm does not prevent fires.
• Install correctly, in the centre of the ceiling if possible.
• Test monthly.
• When the Alarm beeps and LED flashes at the same time
replace battery.
• If the Alarm beeps without the LED flashing at the same time
then clean unit as this is the automatic test feature telling you
the chamber is degraded.
• Plan your escape route.
• Proper protection may require more than one Smoke Alarm.
• If you have any doubt or query about Smoke Alarms consult
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 or more to ensure
that a reliable early warning is given. For maximum protection
you should put individual Smoke Alarms in all the 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
metres) from the door to any room where a 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
example) 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.
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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 place for a fire to start at night, followed
by 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 or sick 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 is too far away for it to wake you, it is best to
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
(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 of your Smoke Alarm between 15 and 30 cm (6
and 12 inches) below the ceiling. Keep at least 15cm (6 inches)
from corners. (see figure 4).
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90cm
(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
horizontally (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 by steam, 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 warmer or 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 direction of
airflow.
• In very high or awkward areas where it may be difficult to
reach the alarm (for testing, battery replacement etc).
• Locate unit at least 1.5m (5 feet) and route wiring at least 1m
(3 feet) away from fluorescent light fittings as electricial
“noise” and/or flickering may affect the unit.
• Locate away from very dusty or dirty areas as 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 getting
in to the chamber can cause intermittent alarms.
(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.
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Check the house carefully in case there is a small fire
smouldering somewhere.
Check whether there is some source of smoke or fumes, for
example 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)
The Smoke Alarm is battery operated and needs only wiring, if
the Inter-Link facility is being used.
1. Pull cover open at tab. Remove cover from base by
separating 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.
3. Taking care to avoid any electrical wiring in the ceiling or wall,
drill a hole through the centres of the marked locations. Push
the plastic Screw Anchors provided into the drilled holes. Screw
in firmly.
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(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.
Gently push Battery into Battery Holder
With a pencil, write the date of battery installation on the inside
of the cover to remind you when to replace the battery.
To close the cover match up snap-in hinges and gently press
together 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 is being
installed or changed, this flag must be held down while gently
pushing the Battery into the Battery Holder. (Figure 7(a)).
Looking after your Smoke Alarm
(a) Automatic Self-Test
The smoke chamber automatically tests itself 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, return the unit for service (see “Getting your Smoke
Alarm Serviced”).
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(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 to 10 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 for any sign of contamination such as cobwebs or
dust and clean the alarm as described on page 9 if necessary.
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.
(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
pressed. For maximum reliability, replace battery at least once
a year.
Test the alarm for correct operation using the test button
whenever 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 the label inside Smoke
Alarm Cover.
WARNING: Use of any other battery may be detrimental to the
operation of the Smoke Alarm.
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(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 cover thoroughly 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.
Interconnecting your Smoke Alarms
A maximum of 12 Ei105C Smoke Alarms may be 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 essential 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
and the test button on the first unit will flash about once a
second. Check all the other units similarly.
These Smoke Alarms should be interconnected only within the
confines of a single family living unit. If they are connected
between different units there may be excessive nuisance
alarms. Everybody may not be aware that they are being tested
or that it is a nuisance alarm caused by cooking etc.
Important Safeguards
When using household protective devices, basic safety
precautions should always be followed, including those listed
below:
• Please read all instructions.
• Rehearse emergency escape plans so everyone at home
knows what to do in case the alarm sounds.
• For replacement batteries, refer to label inside smoke alarm.
• NOTE: Constant exposure to high or freezing temperatures or
high humidity may reduce the life of the batteries.
• Do not disconnect battery to stop alarm sounding. (Fanning
vigorously with a newspaper or similar will remove nuisance
smoke from the Smoke Alarm and stop it sounding.)
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• Do not attempt to recharge or burn batteries, as they may
explode. Wrap in paper and discard normally.
• When removing battery, handle carefully to avoid possible eye
damage or skin irritation if battery has leaked or corroded.
• To maintain sensitivity to smoke, do not paint or cover smoke
alarm in any manner; do not permit any accumulation of
cobwebs, dust or grease.
• If unit has been damaged in any way or does not function
properly,do not attempt a repair. Return Smoke Alarm (see Getting your Smoke Alarm Serviced page 12.)
• This appliance is intended for household use ONLY and not
for commercial or industrial use.
• This is not a portable product. It must be mounted following
the instructions in this instruction leaflet.
• Smoke Alarms are not a substitute for insurance. The supplier
or manufacturer is not your insurer.
(b) Limitations of Smoke Alarms
Smoke Alarms have significantly helped to reduce the number
of fire fatalaties in countries where they are widely installed.
However independent authorities have stated that they may be
ineffective in some circumstances. There are a number of
reasons for this:
• Smoke Alarms will not work if the batteries are depleted or if
they are not connected, or if the wrong type of battery is
used. Test regularly and replace batteries at least yearly or
when depleted.
• Smoke Alarms will not detect fire if sufficient smoke does not
reach the alarm. Smoke may be prevented from reaching the
Alarm if the fire is too far away, for example, if the fire is on
another floor, behind a closed door, in a chimney, in a wall
cavity, or if the prevailing air draughts carry the smoke away.
Installing smoke alarms on both sides of closed doors and
installing more than one smoke alarm as recommended in
this leaflet very significantly improve the probability of early
detection.
• The Smoke Alarm may not be heard.
• A smoke alarm may not wake a person who has taken drugs
or alcohol.
• Smoke Alarms may not detect every type of fire to give
sufficient early warning. They are particularly ineffective with:
fires caused by smoking in bed, escaping gas, violent
explosions. poor storage of flammable rags and/or liquids,
(for example petrol, paint, spirits etc), overloaded electrical
circuits, arson, children playing with matches.
• Smoke Alarms don’t last indefinitely. The manufacturer
recommends replacement after 10 years as a precaution.
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Planning your Escape for when the Alarm
goes off
Use the Smoke Alarm Test Button to familiarize your family with
the Alarm sound and to practice fire drills regularly with all
family members. Draw up a floor plan that will show each
member at least 2 escape routes from each room in the house.
Children tend to hide when they don’t know what to do. Teach
children how to escape, open windows, and use roll up fire
ladders and stools without adult help. Make sure they know
what to do if the alarm goes off - see below.
1. Check room doors for heat or
smoke. Do not open a hot door.
Use an alternate escape route.
Close doors behind you as you
leave.
2. If smoke is heavy, crawl out,
staying close to floor. Take short
breaths, if possible, through a
wet cloth or hold your breath.
More people die from smoke
inhalation than from flames.
3. Get out as fast as you can. Do
not stop for packing. Have a
prearranged meeting place
outside for all family members.
Check everybody is there.
4. Call the Fire Brigade from a
neighbour’s house. Remember
to give your name and address.
5. NEVER re-enter a burning
house.
(b) FIRE SAFETY HINTS
Store petrol and other flammable materials in proper
containers.
Discard oily or flammable rags.
Always use a metal fireplace screen and have chimneys
cleaned regularly.
Replace worn or damaged sockets, switches, home wiring and
cracked or frayed electrical cords and plugs.
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Do not overload electrical circuits.
Keep matches away from children.
Never smoke in bed. In rooms where you do smoke, always
check under cushions for smoldering cigarettes and ashes.
Service central heating systems regularly.
Be sure all electrical appliances and tools have a recognised
approval label.
This device cannot protect all persons at all times. It may not
protect against the three most common causes of fatal fires:
1. Smoking in bed.
2. Leaving children at home alone.
3. Cleaning with flammable liquids, such as petrol.
Further information can be obtained from the Home Office
Publication entitled “Smoke Detectors in the Home” (FB2) or
from your local fire prevention officer.
What is the best Smoke Alarm - Optical
or Ionisaton ?
Both types respond in all standard fires but each type may
respond faster to particular fires as shown. Ei Electronics
manufactures two complementary 10 Year Smoke Alarms ,
Optical Smoke Alarm Ei3105C and Ionisation Smoke Alarm
Ei100TYC with built-in Lithium battery. For dual protection
install each type.
The Home Office states (in FB2):
“If your home has more than one floor , at least one alarm
should be fitted on each level. In this case a combination of
Optical and Ionisation alarms, preferably interconnected, will
give the best protection.”
Getting your Smoke Alarm Serviced
If your Smoke Alarm fails to work after you have read the
sections on “Connecting the battery” and “Looking after your
Smoke Alarm” contact Customer Assistance at the nearest
address given at the end of this leaflet. If it needs to be returned
for repair or replacement put it in a padded box (battery
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disconnected) and send it to “Customer Assistance and
Information” at the nearest address given on the Smoke Alarm
or in this leaflet. State the nature of the fault, where the Smoke
Alarm was purchased and the date of purchase.
Five Year Product Guarantee
(excluding battery)
Ei Electronics guarantees this product (excluding battery)
against any defects that are due to faulty material or
workmanship for a five year period after the original date of
consumer purchase or receipt as a gift. This guarantee does
not include damage to the product resulting from accident or
misuse. It also excludes incidental and consequential
damages. If the product should become defective within the
warranty period, we will replace it free of charge. (see “Getting
Your Smoke Alarm Serviced”)
Do not interfere with the product or attempt to tamper with it.
This will invalidate the guarantee.
IMPORTANT NOTICE
DUST & INSECT CONTAMINATION
All Smoke Alarms and particularly the optical
(photoelectric) type are prone to dust and insect ingress
which can cause false alarms.
The latest design, materials and manufacturing
techniques have been used in the construction of our
Alarms to minimize the effects of contamination.
However it is impossible to completely eliminate the
effect of dust and insect contamination, and therefore, to
prolong the life of the Smoke Alarm you must ensure that
it is kept clean so that excess dust does not build up. Any
insects or cobwebs in the vicinity of the Smoke Alarm
should be promptly removed.
In certain circumstances even with regular cleaning,
contamination can build up in the smoke sensing
chamber causing the alarm to sound. If this happens the
alarm must be returned to us for servicing or
replacement. Contamination is beyond our control, it is
totally unpredictable and is considered normal wear and
tear. For this reason, contamination is not covered by the
guarantee and a charge is made for all servicing work.
If you experience persistent false alarms, in particular
locations, due to contamination of the smoke chamber
you could consider fitting our ionisation type Smoke
Alarm. The principle of ionisation detection makes it less
vulnerable to the effects of dust or insect contamination.
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The crossed out wheelie bin symbol that is on your
product indicates that this product should not be disposed
of via the normal household waste stream. Proper
disposal will prevent possible harm to the environment or
to human health. When disposing of this product please
separate it from other waste streams to ensure that it can
be recycled in an environmentally sound manner. For
more details on collection and proper disposal, please
contact your local government office or the retailer where
you purchased this product.
Construction Product Type: Smoke Alarm Devices
European Standard: EN14604:2005
Certificate of Conformity: 0333-CPD-292022
MODEL
Ei105B
TYPE
Optical Smoke Alarm
Construction Product Type: Smoke Alarm Devices
European Standard: EN14604:2005
Certificate of Conformity: 0333-CPD-292024
MODEL
Ei105C
TYPE
Optical Smoke Alarm
0333
08
Ei Electronics
Shannon, Co.Clare, Ireland.
&
9 Grundy Street, Liverpool L5-9SG, U.K.
Telephone: 0151 298 1588
www.eielectronics.com
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WARNING
DO NOT INSTALL THE ACTUAL SMOKE
ALARM IN NEW OR RENOVATED
BUILDINGS UNTIL ALL WORK IS
COMPLETED
(INCLUDING
FLOOR
COVERINGS) AND BUILDING HAS BEEN
FULLY CLEANED.
(Excessive dust & debris from building work
can contaminate the smoke chamber and
cause problems).
An installed smoke alarm must be removed or
covered fully (with a plastic bag or similar)
before renovations begin.
P/N B10274 Rev4
© Ei Electronics 2008
OPTICAL
SMOKE ALARM
Models:
Ei105B
Ei105C
WITH INTERCONNECT
Contains vital information on unit operation and installation.
Read and retain carefully. If you are just installing this unit this
leaflet MUST be given to the householder.
Please read the first short section containing basic
information.
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