Ei Electronics Smoke Alarm Ei 405 User Manual

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.  
'Ei Electronics 2003  
P/N B15026 R0  
RADIO SMOKE ALARMS  
with WIRELESS INTERCONNECT  
INSTRUCTION LEAFLET  
Contains vital information on unit operation and installation.  
Read and retain carefully. If you are just installing the unit, this  
leaflet MUST be given to the householder.  
MODELS:  
Ei 405  
Ei 405C  
-
-
Replaceable 9V Battery  
Replaceable 9V Battery &  
hard wired interconnect option  
Ei 405TY  
Ei 405TYC  
-
-
10 Year Lithium Batteries built-in  
10 Year Lithium Batteries built-in  
& hard wired interconnect option  
All with Optical Smoke Sensor  
1
1
 
¥ If the Alarm beeps without the red light flashing at the  
same time then clean unit as this is the automatic test fea-  
ture indicating the chamber is degraded.  
¥ Plan your escape route.  
¥ Proper protection usually requires more than one Smoke  
Alarm.  
¥ If you have any doubt or query about Smoke Alarms con-  
sult the supplier or your local Fire Brigade.  
¥ Models Ei405TY & Ei405TYC - When the Alarm beeps  
and the red light flashes at the same time or the blue light  
flashes every 9 seconds it indicates the battery is depleted  
and the entire alarm must be replaced. This normally  
occurs after 10 years has elapsed.  
¥ Models Ei405 & Ei405C - When the Alarm beeps and the  
red light flashes at the same time replace the battery (see  
fig 1).  
The wireless interconnect will operate as received once the  
batteries are connected. (Program units if nearby systems are like-  
ly to cause false alarms).  
2. INTRODUCTION  
Congratulations on purchasing Ei405 Radio Smoke Alarms.  
You can easily install these alarms throughout the house in  
closed rooms, corridors and in the attic for the fastest  
response to developing fires.  
Closed doors are great for slowing down the spread of fire,  
but unfortunately they can also greatly slow down the  
response time of alarms, as they block the smoke getting to  
them. Without interconnection, closed doors also greatly  
reduce the alarm sound level throughout the house, so even  
though the fire is detected early, the alarm may not be heard.  
The Ei405 Radio Smoke Alarms offer the comfort of intercon-  
nection without the hassle of installing the interconnect wires.  
The wireless interconnect helps ensure the alarm will be  
heard everywhere - including most importantly, the bedrooms.  
The wireless interconnect will operate as received once the  
batteries are connected. To check operation, first connect all  
the batteries (see section 1) and then hold down the test but-  
ton on the first unit until the blue light comes on continuously  
for 3.5 seconds. All the other smoke alarms will respond with-  
in 5 seconds. If there is any possibility of a neighbour having  
a similar system, you should program your units so your sys-  
tem will not cause his/hers to alarm or vice versa. This is eas-  
ily done and only takes a few minutes- see below (section 6.3).  
A remote control Ei410 is available to allow you to test and  
hush the alarms, without having to reach up to the smoke  
alarms on high ceilings. The remote control also has a  
"Locate" button to identify the unit causing the alarm - this is  
3
 
excellent, particularly at night, as it rapidly identifies where  
the fire is located. This is ideal for larger systems as the dis-  
turbance in the house can be kept to a minimum e.g. no need  
to enter all the bedrooms to check to see if the red light is  
flashing rapidly.  
3. LOCATING YOUR SMOKE ALARM  
Sufficient smoke must enter your Smoke Alarm before it will  
respond. Your Smoke Alarm needs to be within 10 paces (7.5  
metres) of the fire to respond quickly. The smoke alarms need  
to be in positions where they can be heard throughout your  
home, so they 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 max-  
imum 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 sleep-  
ing area and the most likely sources of fire (living room or  
kitchen for example). But it should not be more than 10 paces  
(7.5 metres) from the door to any room where a fire might  
start and block your escape from the house.  
3.1 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 exam-  
ple, see figure 2).  
If your bungalow is very large and the corridor or hallway is  
more than say 20 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.  
Recommended locations, Figures 2, 3, & 4  
for minimum protection  
¥ on each storey  
¥ in each sleeping area  
¥ every 7.5 metres of hallways & rooms  
¥ within 3 metres of all bedroom doors  
¥ all units interconnected  
for recommended protection  
in addition  
¥ in every room (except bathrooms and kitchens)  
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Figure 2: Single storey dwelling  
BEDROOM  
KITCHEN  
DINING ROOM  
BEDROOM  
BEDROOM  
Figure 3: Single storey dwelling with separate sleeping  
areas.  
BEDROOM  
BATH  
KITCHEN  
ROOM  
LIVING ROOM  
BEDROOM  
DINING ROOM  
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 3).  
3.2 Multi Storey Dwellings  
If your home has more than one floor, at least one alarm  
should be fitted on each level (see figure 4). The Ei405 Radio  
smoke alarms are ideal in this situation as they are automati-  
cally interconnected without wiring.  
Figure 4: Multi Storey Dwelling  
5
 
3.3 Recommended Protection  
For recommended 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.  
3.4 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 Hi-Fi System. The Hi-Fi  
system 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. These Wireless interconnect smoke  
alarms will help to ensure the alarm will be heard through-out  
the house.  
Figure 5  
Figure 6  
IDEAL IN CENTRE  
OF CEILING  
15 to 30 cm  
(6 to 12")  
DEAD AIR SPACES  
0.9m  
(3 FEET)  
NEVER WITHIN 0.3m  
OF ANY CORNER  
4. POSITIONING YOUR SMOKE ALARM  
4.1. Hot smoke rises and spreads out, so a central ceiling  
position is the recommended 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 0.3m (1ft)  
from any light fitting or decorative object which might obstruct  
smoke entering the Smoke Alarm. Keep at least 0.3m (1ft)  
away from walls and corners. See figure 5.  
4.2 Wall Mounting  
When a ceiling position is not possible (for example on a ceil-  
ing having exposed beams or joists, or built-in radiant heat-  
ing) put the top edge of your Smoke Alarm between 15 and  
30 cm (6 and 12 inches) below the ceiling. Keep at least 0.3m  
(1ft) from corners. (see figure 5).  
6
 
4.3 On a sloping Ceiling  
In areas with sloping or peaked ceilings install your Smoke  
Alarm 0.9m from the highest point measured horizontally (see  
figure 6), because dead air at the apex may prevent smoke  
from reaching the unit.  
4.4 Locations to Avoid  
Don t place your Smoke Alarm in any of the following areas:  
¥ Bathrooms, kitchen, 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 or above 40¡C).  
¥ 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 exteri-  
or 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.  
¥ Locate unit at least 1.5m away from fluorescent light fit-  
tings 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 pre-  
vent smoke from entering the chamber.  
¥ Do not locate in insect infested areas. Small insects get-  
ting in to the chamber can cause intermittent alarms.  
4.5 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 fam-  
ily into a safe place, before you start investigating.  
Check the house carefully in case there is a small fire smoul-  
dering somewhere.  
Check whether there is some source of smoke or fumes, for  
example cooking fumes being drawn past the Smoke Alarm  
by an extractor.  
7
 
If there are frequent nuisance/false alarms it may be neces-  
sary to re-locate the device away from the source of the  
fumes.  
If you installed the smoke alarms as received and did not pro-  
gram them, you may be receiving an alarm signal from a  
neighbouring system. This can be easy rectified by house  
coding your alarms (see section 6.3).  
Pressing the test & hush button on the smoke alarm sensing  
fire (i.e. with the red light flashing rapidly) will silence the  
alarm for 10 minutes. (Pressing the hush button on the option-  
al Ei 410 Remote Control acts in the same way).  
5. INSTALLING YOUR SMOKE ALARMS  
1. Select a location complying with the above advice.  
2. Remove the mounting plate from the Smoke Alarm by  
releasing the tamperproof catch with a small screwdriver as  
shown in figure 1a and sliding the alarm from the mounting  
plate.  
3. Place the base on the ceiling/wall exactly where you want  
to mount the unit. With a pencil, mark the location of the two  
screw holes.  
4. Taking care to avoid any electrical wiring in the ceiling, drill  
holes through the centres of the marked locations. Push the  
plastic screw anchors provided into the drilled holes. Screw in  
firmly.  
5. Connect the battery to the battery snaps as shown in figure  
1b (models Ei405 & Ei405C only).  
6. Carefully line up the unit on the base and slide on. (This  
connects the batteries in the Ei 405C, TY, TYC units.  
Install all the other alarms similarly.  
6. LOOKING AFTER YOUR SMOKE ALARMS  
6.1 Manually Testing your Smoke Alarm  
It is recommended that you test your Smoke Alarm at least  
weekly 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 (Figure 7). The  
alarm will stop sounding shortly  
Figure 7  
after the button is released.  
8
 
If the alarm fails to sound, follow this checklist:  
¥ Check the age of the unit - see the replace by label on  
base of unit.  
¥ Check the battery snaps are firmly connected on the Ei405  
& Ei405C models (see fig 1b).  
¥ On the Ei405TY & Ei405TYC models ensure the unit is  
pushed fully home on the mounting plate, as this connects  
the battery.  
¥ Check for any sign of contamination such as cobwebs or  
dust and clean the alarm as described on page 12 if nec-  
essary.  
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 mis-  
leading unless special apparatus is used.  
6.2 Checking the Wireless Interconnect  
We recommend that the interconnect is tested weekly as  
follows:  
1. Press and hold the test button on the first alarm for 5 sec-  
onds (count up to 10).  
2. The horn will sound and then the blue light will come on  
continuously for 3.5 seconds. (This indicates that the unit is  
transmitting a Radio Alarm signal to the other units). Release  
the test button. The local alarm will cease and you should  
then be able to hear the other alarms sounding in the dis-  
tance.  
3. Repeat this procedure for all the other alarms.  
If any units appear not to operate remove models (Ei405 &  
Ei405C only) from the mounting plate (as shown in figure 1a)  
and ensure battery is firmly connected to the snaps. If the  
wireless link does not appear to operate ensure you have held  
the test button down until the blue light has come on continu-  
ously (this could take up to 5 seconds).  
(If there still appears to be a problem with the wireless link it  
may be necessary to resite/rotate some units - see section  
below on "House Coding your Units").  
We strongly recommend that you house code your units so  
that your system will not be triggered by similar systems in the  
neighbourhood.  
6.3 House Coding your Units  
The units can transmit and receive over 150 metres minimum  
(in free space) so it is important to ensure neighbouring sys-  
tems do not interfere with your system. The following proce-  
dure programs the units so each learns the serial numbers of  
all the other units on the system. After they have been pro-  
grammed they will only communicate with units programmed  
at the same time (that were within range).  
9
 
Program Procedure  
1. Press the test button on the first installed unit three times  
within 1.5 seconds. The blue light will come on momentarily  
each time to show the button is operating. (If the horn sounds  
during these short button depressions, just ignore it). The blue  
light will now flash once every 5 seconds. The unit now sends  
a radio message every 5 seconds stating it is in the program  
mode and containing its own serial number. It is also looking  
for similar messages from other units.  
2. Similarly press the test button three times on the second  
installed unit. After about 30 seconds each of the two units  
will be flashing the blue light twice every 5 seconds to indicate  
it has detected and learned the serial number of two units (i.e.  
itself and the other unit).  
3. Similarly press the test button on the third unit, three times  
to put it in the program mode. After about 30 seconds all the  
units will be flashing the blue light three times every 5 sec-  
onds to indicate there are now three units on the system.  
4. Similarly press the test button three times on all the other  
units to put them in the program mode. (If a Remote Control  
Ei410 is to be used it must also be put into the program mode  
at this time by holding the Test and Locate button down  
simultaneously (see "RF Remote Control" section below). On  
each smoke alarm the blue light will flash rapidly to show the  
number of units with which it has communicated.  
The units will stay in program mode for 15 minutes and then  
reset automatically. ( A smoke alarm can be taken out of pro-  
gram mode quickly by pressing the test button three times in  
1.5 seconds).  
N.B. The quickest method of programming the system is to  
put all units into the program mode at the same time.  
Additional Units  
Additional RF alarms can be added to the system at any time.  
Siimply put all the units, the additional units and those previ-  
ously installed, into the program mode at the same time.  
6.4 Troubleshooting RF Interconnection  
If, for example, there are 6 units in the system, but two of the  
units are only flashing 5 times, it indicates that these two units  
are not communicating. Try resiting / rotating the units (e.g.  
move it away from metal surfaces or wiring) until they both  
flash 6 times while in the program mode.  
Note: Resiting/rotating units may move them out of the range  
of existing units even though they may have learned all serial  
numbers in the system. It is important therefore to check that  
all 6 detectors are communicating in their final installed posi-  
tions.  
10  
 
Clear the serial numbers learned by:  
- disconnecting the battery  
- waiting 10 seconds  
- holding the test button down while re-connecting the battery  
snaps to the Ei405 & Ei405C only. With the Ei405TY &  
Ei405TYC models hold the test button down while sliding it on  
to the mounting plate.  
Then put it into the program mode by pressing the test button  
three times within 1.5 seconds. It will now flash the blue light  
once every 5 seconds indicating there is just one unit (i.e.  
itself) in the system.  
Put all the other units into the program mode and confirm that  
the blue light on each unit is flashing 6 times every 5 seconds  
indicating that RF links are now all satisfactory.  
RF Remote Control Ei 410 (Optional)  
The optional Remote Control Ei410 allows you to test, hush or  
locate units.  
Test:  
Press Test button on remote control. The red light on the con-  
trol will come on continuously to indicate it is transmitting an  
RF signal. The Smoke Alarms within range will alarm in  
10 seconds, with the red light on the smoke alarm flashing  
rapidly. (This indicates that the chamber has been tested in  
exactly the same way as if the test button on the unit itself had  
been pressed).  
Hush:  
If a unit is giving a nuisance alarm e.g. from cooking fumes,  
pressing the Hush button on the remote control, within range  
of the alarm, will silence it for 10 minutes. Note only units  
sensing smoke i.e. with their red light flashing rapidly, will  
have their smoke sensitivity reduced. However, all units will  
be silenced.  
Locate:  
If all the units are in alarm due to one sensing smoke, press-  
ing the Locate button on the remote control within range of  
each unit will silence all units except ones sensing smoke.  
(Note this is different to the operation of the Hush button  
which silences all units). This is a very useful feature, when  
for example twelve units are alarming simultaneously, as the  
unit initiating the alarm can be quickly indentified (even in a  
closed bedroom) and the problem quickly resolved.  
House Coding:  
If you are house coding your Smoke Alarms you must also  
include the Remote Control. It is put into program mode by  
holding down the Test & Locate buttons simultaneously  
until the red light flashes. The flashing will continue for 15  
minutes indicating the remote control is in program mode.  
11  
 
The unit can be quickly removed from the program mode by  
holding down the Test & Locate buttons simultaneously.  
(The house coding can be removed, if necessary, from the  
remote control by first disconnecting the battery for 10 sec-  
onds and then reconnecting the battery while holding down  
both the Test & Locate buttons).  
6.5 Power Indicator Light.  
The Smoke Alarm has a red Power Indicator Light which  
flashes once a minute to show the Smoke Alarm is powered.  
Check regularly. Replace the Smoke Alarm if the flashing  
stops.  
6.6 Hush Feature  
These smoke alarms have a silencer feature to help you con-  
trol nuisance false alarms.  
1. To cancel a false alarm, press the test & hush button. The  
alarm will automatically switch to a reduced sensitivity condi-  
tion. This condition allows unwanted alarms to be silenced for  
a period of approximately 10 minutes. The red light will flash  
every 10 seconds (instead of 40 seconds) to let you know the  
unit has been silenced. It can also be silenced using the Hush  
Button on the optional remote control Ei 410, provided it is  
sensing smoke itself.  
2. The unit will reset to normal sensitivity at the end of the  
silenced period. If additional silenced time is required, simply  
push the test button again.  
3. 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 kitchen usage/layout is such that there are an unacceptable  
level of nuisance alarms, re-locate the Smoke Alarm further  
away where it will be less affected by cooking fumes etc.  
6.7 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  
and cobwebs from the sides and cover slots where the smoke  
enters. Keep cover closed while cleaning. Do not vacuum or  
brush inside the Smoke Alarm.  
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 manufac-  
turer.  
12  
 
6.8 Automatic Self-Test  
The smoke chamber automatically tests itself every 40 sec-  
onds. If the chamber is degraded it will beep without the red  
light flashing at the same time. If this happens clean the unit.  
If the beeping persists and the beep does not coincide with an  
red light flash, return the unit for service (see Getting your  
Smoke Alarm Serviced ).  
6.9 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 minimise  
the effects of contamination. However it is impossible to com-  
pletely 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, contam-  
ination 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 consid-  
ered 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 loca-  
tions, due to contamination of the smoke chamber you could  
consider fitting an ionisation type Smoke Alarm. The principle  
of ionisation detection makes it less vulnerable to the effects  
of dust or insect contamination.  
6.10 Replacing the Battery (Model Ei 405 & Ei405C only)  
A fresh Alkaline Battery should last for over a year. When the  
battery power is low and replacement is necessary, the Alarm  
will beep and the red light 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 the battery at least once a year (see fig 1a for how to  
remove unit from the mounting plate).  
6.11 End of life  
The entire Smoke Alarm must be replaced if:-  
(i) The unit is installed for over 10 years (check the replace-  
ment year marked on the unit).  
13  
 
(ii) Low Battery beeps (Model Ei 405TY & Ei405TYC only)  
The unit is giving a short beep every 40 seconds and the red  
light flashes at the same time for longer than 1 hour. (If the  
unit beeps without the red light flashing at the same time see  
Cleaning your Smoke Alarm above).  
(iii) The unit fails to sound the horn loudly when the test but-  
ton is pressed.  
Before the Smoke Alarm is discarded, remove from the  
mounting plate (Ei405TY & Ei405TYC only) to stop beeps or  
the possibility of the unit alarming. With the Ei405 & Ei405C  
just disconnect the battery. Do not put the Smoke Alarm  
into a fire.  
7. HARDWIRE INTERCONNECTION  
(Models: Ei 405C & Ei 405TYC only)  
Sometimes it may be required to interconnect to battery pow-  
ered Ei Electronics Smoke Alarms which do not have wireless  
interconnect. If any of the interconnected units detect smoke the  
Ei 405C & Ei 405TYC model will send a Radio alarm signal.  
Ei 405TYC  
e.g. Ei 105C  
e.g. Ei 3105TYCH  
Figure 8  
A maximum of twelve (Ei 405C, Ei 405TYC, Ei 3105TYC, Ei  
100TYC, Ei 105C, Ei103C or Ei 100C only) Smoke / Heat  
Alarms may be wired together such that when one unit sens-  
es smoke all other units sound a warning. This helps ensure  
smoke alarms will be heard. Do not connect to any other  
device as it may damage the unit or affect performance.  
Figure 9  
14  
 
A maximum of 250 metres (820ft) of signal cable 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 fig 8)  
before screwing the mounting plate to ceiling. Draughts,  
through the ceiling, from wiring openings, conduit, or mount-  
ing boxes/holes, may blow smoke away from the sensing  
chamber, making it insensitive. It is essential that all such  
openings including the wiring hole (see figure 9) be closed by  
silicone sealant or similar.  
1. Remove the Smoke Alarm from the mounting plate as  
shown in fig 1a  
2. Lift the wiring cover on the mounting plate as shown in fig 9.  
3. Connect the two core cable to the terminal block as shown  
in fig 10.  
4. Replace the wiring cover and attach the smoke alarm to the  
mounting plate.  
Figure 10  
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. Please note it can take up to 5 seconds for some  
of the interconnected units to sound. Check all the other units  
similarly.  
Check the Radio Interconnect as described above.  
These Smoke Alarms should be interconnected only within  
the confines of a single family living unit. If they are connect-  
ed between different units there may be excessive nuisance  
alarms. Everybody may not be aware that they are being test-  
ed or that it is a nuisance alarm caused by cooking etc.  
8. IMPORTANT SAFEGUARDS  
When using household protective devices, basic safety pre-  
cautions 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.  
15  
 
¥ Constant exposure to high or freezing temperatures, high  
humidity or a high level of nuisance alarms may reduce the  
life of the battery.  
¥ Nuisance alarms can be quickly silenced by fanning vigor-  
ously with a newspaper or similar to remove the smoke or  
press the test / hush button.  
¥ Do not attempt to remove, recharge or burn the battery, as  
it may explode.  
¥ If it is necessary to remove the battery for separate dis-  
posal, 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 accumula-  
tion 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).  
¥ This appliance is intended ONLY for premises having a  
residential type environment.  
¥ This is not a portable product. It must be mounted follow-  
ing the instructions in this instruction leaflet.  
¥ Smoke Alarms are not a substitute for insurance. The sup-  
plier or manufacturer is not your insurer.  
8.2 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 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. Test regularly and replace the  
entire unit when it fails to operate.  
¥ Smoke Alarms will not detect fire if sufficient smoke does  
not reach the alarm. Smoke may be prevented from reach-  
ing 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.  
¥ Radio Interconnect may not work due to interference or the  
signal being blocked by furniture, renovations etc.  
¥ A smoke alarm may not wake a person who has taken  
drugs or alcohol.  
16  
 
¥ Smoke Alarms may not detect every type of fire to give suf-  
ficient 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  
¥ Use the Smoke Alarm Test Button to familiarise your fami-  
ly 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.  
9. PLANNING YOUR ESCAPE ROUTE FOR  
WHEN 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 pre-  
arranged 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.  
17  
 
8.2 FIRE SAFETY HINTS  
Store petrol and other flammable materials in proper contain-  
ers.  
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.  
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 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 Fire Brigade.  
10. WHAT IS THE BEST 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 two complementary 10 Year Smoke Alarms,  
Optical Smoke Alarm Ei 3105TYCH and Ionisation Smoke  
Alarm Ei 100TYC with built-in Lithium battery. For dual pro-  
tection install each type.  
Ion Sensor  
Best for fast flaming fires  
- small smoke particles  
Optical Sensor  
Best for slow smouldering fires  
- large smoke particles  
These can be hard wired interconnected to the Optical  
Ei405C or Ei405TYC alarms for wireless transmission of  
alarm signal between floors.  
18  
 
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.  
11. GETTING YOUR SMOKE ALARM SERVICED  
If your Smoke Alarm fails to work after you have read the sec-  
tions on Installing your Smoke Alarms and Looking after  
your Smoke Alarm contact Customer Assistance at the near-  
est address given at the end of this leaflet. If it needs to be  
returned for repair or replacement put it in a padded box with  
the battery disconnected (Ei405 & Ei405C only). The Ei405TY  
& Ei405TYC must be removed from the mounting plate to dis-  
connect the batteries (see fig 1a). 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 pur-  
chase.  
12. FIVE YEAR GUARANTEE (Limited)  
Ei Electronics guarantees this product 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 only applies to normal conditions of  
use and service, and does not include damage resulting from  
accident, neglect, misuse unauthorised dismantling or conta-  
mination howsoever caused. If this product has become  
defective it must be returned to Ei Electronics (see Getting  
Your Smoke Alarm Serviced ) with proof of purchase. If the  
product has become defective during the five year guarantee  
the manufacturer will repair or replace the unit without charge.  
This guarantee excludes incidental and consequential dam-  
ages.  
The replaceable battery in the Ei405 & Ei405C is not covered  
by this guarantee.  
Do not interfere with the product or attempt to tamper with it.  
This will invalidate the guarantee.  
Ei Electronics Ltd.  
Shannon, Co. Clare, Ireland.  
AICO Limited.  
Mile End Business Park,  
Oswestry, Shropshire,  
SY10 8NN, U.K.  
19  
 
13. TECHNICAL SPECIFICATION  
Battery:  
Replaceable 9 Volt Alkaline Duracell  
(Ei405 & 405C only) MN1604, Energizer 522 or Eveready 522.  
Battery Life:  
Battery can power unit in standby for over  
(Ei405 & 405C only) a year.  
Battery:  
Built-in Lithium Battery.  
(Ei405TY &  
Ei405TYC only)  
Battery Life:  
(Ei405TY &  
Lasts up to 10 Years.  
Ei405TYC only)  
Power on Indicator: Red light flashes every 40 seconds.  
Smoke Sensitivity: Meets or exceeds requirements of  
BS5446-1: 2000.  
RF & EMC:  
Complies with the requirements of the  
RTTE Directive Compatibility 1999/5/EC  
(RF Performance to EN300220-3, EMC to  
EMC 301489-3).  
Approvals:  
Complies with BS5446-1: 2000.  
Test/Hush Button: Checks smoke sensor, electronics and  
horn. Also silences nuisance alarms for  
10 minutes and then resets.  
Humidity Range: 15% to 95% RH (non-condensing).  
Audible Alarm:  
Chamber Fault:  
85dB at 3m (minimum).  
The unit checks the sensing chamber  
every 40 seconds, and it beeps if a fault is  
found (with red light flashing).  
Radio Frequency: 868.499 MHz (Regulated 1% duty cycle  
band).  
RF Power:  
Range:  
+5dBm.  
150 meters (minimum) in free space.  
Local Hush Mode: When test/hush button is pressed only  
that unit goes into hush  
20  
 
RF RECEPTION  
External Alarm  
RF Signal:  
Turns on horn without red light flashing  
until it fails to receive alarm confirmation  
for 11 seconds. Stops horn within 3 sec-  
onds, on receipt of an "Alarm "Cancel" sig-  
nal (from any unit). Receiver remains on  
"continuously" for 11 seconds to check for  
further alarm signals.  
Length of  
Program Mode:  
15 minutes  
Remote Test Button: Turns on test button so red light flash, I/O  
(Keyfob Ei410)  
line high. No RF message sent by smoke  
alarm  
Remote Hush:  
(Keyfob Ei410  
It silences its horn for ten minutes  
Remote Locate: Stops smoke alarm sounding unless it is in  
(Keyfob Ei410) local alarm itself i.e. detecting smoke  
RF VISUAL INDICATOR (BLUE)  
Test Button:  
Blue light indicates test button pressed.  
On Transmission: Blue LED lights continuously for 1.5 to 3.5  
seconds while messages are being  
transmitted  
Low Battery  
Indication:  
Unit beeps and red light flashes every 40  
seconds. On Ten Year battery units,  
Ei405TY, blue LED also flashes every 9  
seconds if radio battery is low  
Size of System: A maximum number of 32 units can com-  
municate together on one system (howev-  
er the range is likely to be the limiting fac-  
tor in many cases)  
Communication: All units will communicate together as  
shipped (units uncoded). After a unit has  
been programmed it will only communi-  
cate with units whose serial numbers it  
has learned (i.e. is house coded)  
Entering Program  
Mode:  
Pressing the test button three times within  
1.5 seconds puts the smoke alarm in pro-  
gram mode.  
21  
 
The blue light will turn on as the button is  
pressed.  
Program Mode:  
Number of fast flashes every 5 seconds  
indicates number of units (including  
remote keyfob, Ei410, if used) in system  
Clearing House  
Codes:  
The serial numbers memorised, can be  
deleted (i.e. the smoke alarms can be  
uncoded) by powering down the unit and  
disconnecting the battery. Wait 10 sec-  
onds. Then hold down the test button  
while connecting the battery  
Hard Wired  
Interconnect:  
Up to 11, Ei105C, Ei103C or Ei3105TYCH  
can be connected with 2 core cable to  
an Ei405C or Ei405TYC. RF Alarm signal  
will be transmitted if any unit senses  
smoke.  
22  
 
23  
 
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