Ei Electronics Ei100BNX Manual

IMPORTANT NOTICE
WHEN THE BATTERY IS
FIRST CONNECTED THE
ALARM MAY SOUND FOR
2-3 SECONDS.
THIS IS NORMAL.
IT MEANS THE BATTERY IS
CONNECTED CORRECTLY.
© Ei Electronics 2013 P/N B10277 Rev14
SMOKE ALARMS
9 VOLT IONISATION
Models
Ei100B Standard Alarm
Ei100L Emergency Light
Ei100S Silencer
Ei100C Interconnect
INSTRUCTION LEAFLET (for all Models)
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.
1
www.acornfiresecurity.com
www.acornfiresecurity.com

2
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 - this is normal.
• ASmokeAlarmdoesnotpreventfires.
• Installcorrectly,inthecentreoftheceilingifpossible.
• Testweekly.
• Replacebatteryyearlyorwhenitbeepsonceaminute.
• 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.
• Nuisancealarmscanbequicklysilencedbyfanningwitha
newspaper or similar to help remove smoke from the unit.
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.
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).
www.acornfiresecurity.com
www.acornfiresecurity.com

Recommended protection, Figure 1,2, & 3
Minimum protection
 •eachstorey
 •eachsleepingarea
 •every7.5metres(25ft)ofhallwaysandrooms
Maximum protection
All rooms (except bathrooms & kitchens)
(b) Multi Storey Dwellings.
If your home is on more than one level you will require a
smoke alarm on each storey (see figure 3).
3
Bedroom
Bedroom Bedroom
Dining
Kitchen
Bedroom
Bedroom
Recreation
Dining
Kitchen
Living
Bedroom
Figure 2: Single storey Dwelling with separate sleeping areas
Figure 1: Single storey Dwelling
Figure 3: Two Storey Dwelling
www.acornfiresecurity.com
www.acornfiresecurity.com

This is because an upstairs smoke alarm is unlikely to detect
afireonlowerfloorsinsufficienttimetoensureanadequate
escape.
(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onpage5).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 Alarm Ei100C is designed for this - when
onealarmsensessmoke,allconnectedalarmsrespond.(see
page 9 for further details).
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 from any light fitting
or decorative object which might obstruct smoke entering the
Smoke Alarm. Keep at least 15 cm away from walls and
corners. See figure 4.
4
DEAD AIR SURFACES
NEVER WITHIN 15cm
OF ANY CORNER
IDEAL IN CENTRE
OF CEILING
15 TO 30 cm
(6-12")
90 cm
(3 FEET)
Figure 4 Figure 5
www.acornfiresecurity.com
www.acornfiresecurity.com

(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).
(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, 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 - wall
mounting if necessary.
•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
moulding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).
(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
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.
The Silencer Smoke Alarm Ei100S is designed for more
difficult areas, as you can silence the alarm for 8 minutes.
Thisgivestimeforsmokeorfumestoclear,(seepage10for
more details).
5
www.acornfiresecurity.com
www.acornfiresecurity.com

Installing your Smoke Alarm
(a) Attaching to Ceiling or Wall.
(NB: for wiring the Ei100C Interconnect model see page 9)
The SmokeAlarm is battery operated and needs no wiring,
(Ei100C excepted). Use figure 6 below, as a help in
mounting.
1. Pull Cover open at Tab (2). Remove Cover from Base by
separating at rear Snap-in Hinges (5).
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 (6).
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.
(b) Connecting the battery.
Withapencil,writethedateofBatteryinstallationontheinside
of the Cover to remind you when to replace the battery (4).
LiftBatteryfromBatteryholder,andsnapBatteryConnectors
to Battery. They fit together only one way (Figure 7).
Gently push Battery into Battery Holder (9)
To close the cover match up Snap-in Hinges (5) and gently
press together until Base and Cover snap together.
6
(1) COVER (2) "OPEN HERE"
TA B(3) TEST BUTTON
(4) WRITE IN
DATE BATTERY
IS INSTALLED
(5) SNAP-IN
HINGES
(6) SCREW
HOLE
(6) SCREW
HOLE
(10) 9 VOLT
BATTERY
(9) BATTERY
HOLDER (8) BATTERY
CONNECTORS
(7) PLASTIC
CLIP
Figure 6
www.acornfiresecurity.com
www.acornfiresecurity.com

NOTE: You may hear a loud chirp when attaching the Battery
Connectors to the Battery. N.B. The emergency light Smoke
Alarm needs 2 batteries (see page 9 for details). Test the
installed Smoke Alarm - see section 5(a) below.
(c) Battery Missing Indicator
All 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8).
Looking after your Smoke Alarm
(a) Testing your Smoke Alarm
It is recommended that you test your Smoke Alarm once a
week 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
9). 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. Refer to “Cleaning Your Smoke Alarm” (c) below.
7
9 Volt
Battery Battery
Connectors
Figure 7
Figure 8
Figure 9
www.acornfiresecurity.com
www.acornfiresecurity.com

WARNING: DO NOT TEST WITH FLAME.
This can set fire to the Alarm and damage the house.
We do not recommend testing with smoke or heat as the
results can be misleading unless special apparatus is used.
(b) Replacing the Battery(ies)
Test the alarm for correct operation using the test button
whenever the battery(ies) is/are replaced.
A fresh Battery should last about one year. When Battery
power is low and replacement is necessary, the Alarm will
“beep” about once per minute for at least 30 days. The battery
must then be replaced. Replace battery if the alarm does not
sound when the Test Button is pressed. For maximum
reliability,replacebatteryatleastonceayear.
OnSmokeAlarmswithaPowerIndicatorflashinglight,ifthe
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 information inside
Smoke Alarm Cover.
WARNING: Use of any other battery may be detrimental to
the operation of the Smoke Alarm.
(c) 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.
Smoke Alarms with Additional Features
A range of Smoke Alarms are produced which are optimized
for different locations and/or uses.
(a) Power Indicator Light.
A number of Smoke Alarms have a Power Indicator Light
which flashes once a minute through the test button to show
the Smoke Alarm is powered. Replace the battery if the
flashing stops.
(b) Emergency Light Smoke Alarm Ei100L
Whenthesmokealarmsensessmoke,thebrightemergency
light turns on to help identify and light the escape route. The
Smoke Alarm should therefore be located where it will light
theescaperoute-inahallway,aboveastairsorneartheexit.
Connection and Replacement of Batteries.
The smoke alarm uses two different types of standard 9 volt
8
www.acornfiresecurity.com
www.acornfiresecurity.com

batteries,analkalinebatteryandageneralpurposebattery.
1. Connect an alkaline battery (use only Duracell MN1604 or
Eveready 522) to the blue battery connector to power the
light. This battery when fresh will normally last 1 year in the
stand by mode and provide over 15 minutes of light when in
alarm. The Smoke Alarm is normally shipped with the alkaline
battery connected to facilitate the customer - this does not
deplete the battery.
2. Connect the general purpose battery to the black battery
connector to power the smoke alarm. This battery when fresh
will normally last over one year before it needs replacement.
Replace both batteries when the smoke alarm gives a short chirp
every minute or when the light looks dim during a button test.
UseonlybatteriesspecifiedontheSmokeAlarm,theuseof
other batteries could have a detrimental effect on smoke
alarm operation or light output.
(c) Interconnect Model Ei100C
A maximum of 12 interconnect Ei100C or 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.
Warning: Do not interconnect to any other Smoke Alarms.
Amaximumof250metres(820ft)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 shown in Figure 10. An opening should be made in the
label covering the wiring hole in the base, and the wires
routed into the unit as shown. Note that the wiring inside the
unitmustbekeptclearofthetestbuttoncontacts,butmust
not impede the air flow. 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.
You must press in and hold the test button for at least 4 to 5
seconds,asthereisatimedelayonsomeunits.
9
WIRING HOLE
TEST BUTTON
CONTACTS
INTERCONNECT
WIRES
TERMINAL 1
TERMINAL 2
Figure 10
www.acornfiresecurity.com
www.acornfiresecurity.com

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
every 2 seconds. Check all the other units similarly.
Wheninterconnectedunitsareinalarm,theredflashinglight
indicates the unit sensing smoke.
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.
(d) Silencer Smoke Alarm Ei100S
This model has a special false alarm silencer feature to help
you control nuisance false alarms.
1.Tocancelafalsealarm,presstheSilencerButtonlocated
on the lower right-hand corner. The Alarm will automatically
switch to a reduced sensitivity condition. This condition allows
unwanted alarms to be silenced for a period of approximately
8minutes.
2. The unit will reset to normal sensitivity at the end of the
silencedperiod.Ifadditionalsilencedtimeisrequired,simply
push the Silencer Button again.
3.Toquicklyreturntonormalnon-silencedoperation,simply
push the Test Button; the alarm will sound briefly and return
toitsnormal,sensitivealarmmode.
4.Ifthecauseofthealarmisnotclear,itshouldbeassumed
that it is due to an actual fire and the dwelling should be
evacuated immediately.
If usage/layout is such that there are an unacceptable level of
nuisance alarms, even with the Silencer Smoke Alarm,
re-locate the Smoke Alarm farther away from the kitchen
where it will be less affected by cooking fumes.
Important Safeguards
When using household protective devices, basic safety
precautionsshouldalwaysbefollowed,includingthoselisted
on next page.
•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 the information 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.)
• Donotattempttorechargeorburnbatteries,astheymay
explode. Wrap in paper and discard normally.
10
www.acornfiresecurity.com
www.acornfiresecurity.com

• 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.
•The chamber located in the center of the Smoke Alarm
contains a small amount of radioactive material. Do not
tamper with the chamber. You may safely change the
battery and clean the Smoke Alarm following instructions
in this leaflet.
•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 14.)
•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 Use & Care leaflet.
•Smoke Alarms are not a substitute for insurance. The
supplier or manufacturer is not your insurer.
Limitations of Smoke Alarms.
Smoke Alarms have significantly helped to reduce the number
of fire fatalities in countries where they are widely installed.
However independent authorities have stated that they may
be ineffective in up to 35% of all fires. 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.
11
www.acornfiresecurity.com
www.acornfiresecurity.com

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.
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.
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receptacles,switches,homewiringandcracked
or frayed electrical cords and plugs.
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 smouldering cigarettes and ashes.
Service furnaces and heating systems regularly.
Be sure all electrical appliances and tools have a recognized
approval label.
NEVER
12
www.acornfiresecurity.com
www.acornfiresecurity.com

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.
Smoke Alarm - Optical or Ionisation?
Both types respond in all standard fires but each type may
respond faster to particular fires as shown. Ei Electronics
manufactures Optical Smoke Alarms Ei105B and
Ei105C which compliment the Ionisation Smoke Alarms
described in this leaflet. 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
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.
13
Ion Sensor
Best for fast flaming fires
- small smoke particles
Optical Sensor
Best for slow smouldering fires
- large smoke particles
www.acornfiresecurity.com
www.acornfiresecurity.com