Ei Electronics Ei140e Series User manual

1
230V~ SMOKE & HEAT ALARMS
Ei140e Series
Instruction Manual
with Alkaline Battery Backup
© Ei Electronics 2021
P/N B20412 Rev0
Read and retain carefully for as long as the product
is being used. It contains vital information on the
operation and installation of your Alarm. The manual
should be regarded as part of the product.
If you are just installing the unit, the manual MUST
be given to the householder. The manual is to be
given to any subsequent user.

2
Installer Section
Quick Installation Guide
Alarm Removal
ALARM SHOULD BE CEILING MOUNTED AT LEAST 300mm FROM
WALLS & OBSTRUCTIONS, IDEALLY CENTRALLY IN ROOM/AREA
WIRE TO TERMINALS ON THE MOUNTING PLATE AND FIX
MOUNTING PLATE TO CEILING USING THE FIXINGS PROVIDED
LOCATE CORRECT SITING POINT
1
SLIDE ALARM ONTO MOUNTING PLATE. A CLICK SHOULD
BE HEARD AS THE TAMPER-PROOF CATCH ENGAGES
SLIDE ON ALARM
3
LOCATE THE ARROW ON THE FRONT FACE OF THE ALARM
THE SLOT IS LOCATED DIRECTLY ABOVE THE ARROW
INSERT A FLAT-BLADED SCREWDRIVER HORIZONTALLY
APPROX. 1cm INTO THE CENTRE OF THE REMOVAL SLOT
LOCATE REMOVAL SLOT & INSERT SCREWDRIVER
1
WITH THE SCREWDRIVER STILL INSERTED, PUSH THE LOWER
HALF OF THE ALARM AWAY FROM THE SCREWDRIVER, IN THE
DIRECTION OF THE ARROW ON THE COVER
SLIDE ALARM OFF BASE & REMOVE ALARM
2
PRESS AND HOLD THE TEST BUTTON ON THE ALARM. THE
ALARM AND ANY OTHER INTERCONNECTED UNITS SHOULD SOUND
TEST ALARMS
4
FIX & WIRE MOUNTING PLATE
2
1. Introduction
The Ei140e series is supplied with an Easi-Fit base that
allows very quick and simple installation of the Smoke
Alarm, combined with simple detector head removal
and replacement. The Easi-Fit base automatically
connects both mains power and battery as the detector
head slides on to the Easi-Fit base.
Up to 12 Smoke/Heat Alarms can be interconnected so
that when one senses fire all the units alarm.
Interconnection can be achieved by hardwire or through
an RF mounting plate, the Ei168RC.
All Alarms feature a combined test/hush button.

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1.1 Overview
Top View
Red LED
Alarm Indicator
Green LED
Power Indicator
Test / Hush
Button
Alarm
Sounder
Ei146e Optical Alarm
Smoke Entry
Vents
Alarm
Removal
Latch
Ei144e Heat Alarm
Heat Sensor
(Thermistor)
Alarm
Removal
Latch

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1.2 Technical Specications
Power Supply 230V AC, 50Hz
Power Consumption 0.25W (standby)
Max Current Draw 60mA
Battery Backup 9V Replaceable Alkaline battery
Alarm Sounder Piezoelectric Horn
Alarm Sound Level 85dB(A) at 3 meters (min)
Test/Hush Button
Checks sensors, electronics,
interconnection (when applicable)
and sounder.
If the unit is in alarm when
pressed, it silences the alarm for
10min
Visual indicators
Green LED – Power supply
Red LED – Self-test, alarm (if
coincides with horn sounding),
hush mode, memory or fault
Operational Life 10 years
Interconnection
Up to 12 units can be
interconnected via a hardwired or
wireless system (using optional
Ei168RC mounting plate)
Fixings
Supplied with Easi-fit anti-tamper
mounting plate with integral
terminal block and wiring cover,
includes screws and wall plugs
Operating & Storage
Temperature -10°C to +40°C*
Humidity Range 15% to 95% RH
(non-condensing)
Plastic Material HIPS (UL94V-0 flame retardant
rated)
Dimensions
Ei146e: Product - Ø148mm x 50mm
Package - 155mm x 155mm x 62mm
Ei144e: Product: - Ø148mm x 61mm
Package:
Weight 350g (including packaging)
Warranty 5 years (limited)
Approvals
KM522831, KM83678,
EN14604:2005+AC 2008,
BS5446-2:2003
* Temperature and Humidity conditions are for normal operation and
storage. The Alarms will function outside these ranges as required
by the specific product standards. Extended exposure to conditions
outside these ranges can reduce product life. For advice on
prolonged operation outside these range consult the manufacturer.

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2.1 Important Safety Instructions
WARNING: Mains operated Alarms must be installed
and interconnected by a qualified electrician in
accordance with the local appropriate Regulations
for Electrical Installations. Failure to install this Alarm
correctly may expose the user to shock or fire hazards
and damage the product.
The Alarm is designed to be permanently mounted,
using its own built-in terminal block to connect it to the
mains. The mounting plate can be screwed directly to
the ceiling. Alternatively, it can be screwed to a standard
junction box (BS 4662 single gang accessory box). The
Alarm must not be exposed to dripping or splashing.
There are important markings on the underside of the
Alarm.
WARNING: An all-pole mains switch shall be
incorporated in the electrical installation of the building.
WARNING: Batteries (battery pack or batteries
installed) shall not be exposed to excessive heat such
as sunshine, fire or the like.
ATTENTION: Alternative Energy Sources - (Wind,
Solar, UPS etc.)
This product is designed to be connected to a Pure or
True Sine Wave 230V AC supply.
If connecting to a power source that utilises an inverter,
e.g. PV solar panel, the Total Harmonic Distortion (THD)
must be less than 5%. If in doubt, please check with the
manufacturer of the inverter. This also applies to battery
powered UPS (Uninterruptible Power Supply) inverters.
ATTENTION: Light Dimmer Circuits – The Alarms must
not be powered from a light dimmer circuit.
ATTENTION: Do not install Alarms in new or renovated
buildings until all work is completed.
ATTENTION: The Alarm must not be connected when
the house wiring insulation is being checked with high
voltages. i.e. Do not use a high voltage insulation tester
on the Alarm.
ATTENTION: The Alarm must be continuously powered
24 hours a day so it is important that it is not on a circuit
that can be turned off by a switch.
ATTENTION: (UK) BS 5839-6:2019 gives the following
recommendations regarding the mains supply to be
used in a Grade D system. The power supply for the
Alarms should be derived from the public electricity
supply to the dwelling. The mains supply to the Alarms
should take the form of either:
(a) an independent circuit at the dwelling’s main distribution
board, in which case no other electrical equipment
2. Installation

6
should be connected to this circuit (other than the
supply to a dedicated social alarm control unit); or
(b) a separately electrically protected, regularly used
local lighting circuit.
(See BS 5839-6:2019 for further information).
2.2 Where to Locate the Alarm?
The advice here follows the guidance in British Standard
BS 5839-6:2019 in general (for further information refer
to the standard).
The main reason for fitting Smoke/Heat Alarms in
dwellings is to ensure that when there is a fire, sufficient
early warning is given so that everybody can escape
safely. This means that the Smoke/Heat Alarms should
ideally be located near all potential sources of fires and
that the alarm should be heard throughout the house –
particularly in the bedrooms.
It is also important that nuisance/false alarms are minimised
to ensure the Alarms are not disabled or ignored.
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 recommended protection you should put individual
Smoke Alarms in all rooms where fire is most likely to
break out (apart from the kitchen and bathroom).
BS 5839-6:2019 gives guidance on:
- how many Alarms to install
- what type of Alarm to use
- where to position Alarms
The above points will depend on the type of dwelling to
be protected and the level of fire risk.
Fire Risk Assessment
The ‘Grade’ and ‘Category’ of system that should
be installed depends on the fire risk. It is therefore
recommended that a Fire Risk Assessment is
undertaken. The Risk Assessment would be based on a
combination of probabilities:
- fire occurring
- injury or death to occupant
- system operating correctly with a fire
- early detection and warning to occupants in the event
of a fire
The greater the risks, the more comprehensive and
reliable systems needs to be.
LD (Life protection in Dwellings) Systems define the level
of fire protection required for households, depending
on the fire risk and regulations. Aico/Ei Electronics
recommends that an LD1 system be installed for
optimum protection.

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Optimum Protection LD1: As LD2, but in addition
Smoke or Heat Alarms should be located in all rooms
and other areas of the dwelling.
(apart from toilets or bathroom)
Interconnect all Alarms
for dwellings where occupants may be at high risk (e.g. elderly)
for new or materially altered dwellings or existing dwellings
with poor structural fire precautions
for dwellings where occupants may be at high risk (e.g. elderly)
for new or materially altered dwellings or existing dwellings
with poor structural fire precautions
Basic Protection LD2: Smoke or Heat Alarms in all
rooms or areas that present a high fire risk to occupants.
(apart from toilets or bathroom)
UK Requirements
(BS 5839-6:2019)
Interconnect all Alarms
Heat Alarms located in:
(Heat Alarms must be within 5.3m of potential fire
sources)
each Kitchen
Multi-Sensor or Heat Alarms located in:
each Living room (i.e. most frequently used
daytime room)
Multi-Sensor or Smoke Alarms located:
on each storey
every 7.5 m of hallways and escape routes
within 3m of all bedroom doors
Multi-Sensor
Fire Alarm
Optical
Smoke Alarm
Heat
Alarm
do not
fit Alarm
(apart from toilets & bathrooms )
BASIC PROTECTION
OPTIMUM PROTECTION
Optimum Protection LD1: As LD2, but also including
attics / lofts / other spaces in which a fire might start
(apart from toilets or bathroom).
Interconnect all Alarms
Basic Protection LD2: all circulation areas that form
part of an escaper route within the dwelling, and all high
fire risk areas / rooms e.g. kitchen, living rooms, garages
and all bedrooms (apart from toilets or bathroom).
Interconnect all Alarms
Heat Alarms located in:
(Heat Alarms must be within 5.3m of potential fire
sources)
each Kitchen
Multi-Sensor or Heat Alarms located in:
each Living room (i.e. most frequently used
daytime room)
Multi-Sensor or Smoke Alarms located:
on each storey
every 7.5 m of hallways and escape routes
within 3m of all bedroom doors
Multi-Sensor
Fire Alarm
Optical
Smoke Alarm
Heat
Alarm
do not
fit Alarm
(apart from toilets & bathrooms )
BASIC PROTECTION
OPTIMUM PROTECTION
ROI Requirements (IS 3218:2013)

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2.3 Which Alarm in what Room?
Selecting Alarm Type
Location Ei146e
Optical
Smoke Alarm
Ei144e
Heat
Alarm (i)
Hall, Corridors,
Escape routes
✔ ✗
Kitchens / Garages ✗ ✔ (iii)
Living Rooms ✔ ✔ (ii)
Bedrooms ✔ ✗
Shower /
Bathrooms
✗ ✗
(i) A Heat Alarm should only be used in a room adjoining
an escape route, in conjunction with Multi-Sensor
Fire Alarms or Smoke Alarms on the escape routes.
All the Alarms should be interconnected to ensure
the early warning will be heard.
(ii) Some Fire authorities (concerned with the slow
response of Heat Alarms) advise that Multi-Sensor
Fire Alarms or Smoke Alarms should be fitted in
living rooms. This is acceptable according to BS
5839-6:2019 provided there are clearly not going to
be problems with nuisance alarms. Fit Heat Alarms
only if nuisance alarms are very likely and it is
acceptable that a warning will only be given by the
Heat Alarm when there is a very significant flaming
fire in the room. If the door(s) and windows are not
closed to contain the fire and heat, it is extremely
unlikely that the Heat Alarm would respond before
a Multi-Sensor Fire Alarm or Smoke Alarm sited
outside in the corridor.
(iii) In enclosed kitchens with doors closed.

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Improved Audibility
The effectiveness of a Category LD2 system can
be significantly enhanced if an additional Alarm
(interconnected) is installed in the master bedroom. This
will help ensure that a responsible person will quickly
be alerted to a fire and can arrange for an orderly
evacuation of children and other vulnerable occupants.
Grade D System
The mains powered Smoke and Heat Alarms with
battery back-up, covered by these instructions are
suitable for the requirements for a Grade D System.
A Grade D system is needed for:
- New or materially altered dwellings up to three-storeys,
with no floor over 200m2in area.
- Existing dwellings with poor structural fire precautions,
up to three storeys, with no floor over 200m2in area.
- Houses in Multiple Occupation (HMOs) of one or
two-storeys, with no floor over 200m2 in area.
- Individual dwellings units of two or more rooms in
HMOs.
Check that a Grade D system is adequate for the
dwelling into which the system is being installed.
2.4 Where in the Room?
The locations must comply with applicable building
regulations.
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 Alarms must be
mounted away from corners. Fit the Alarm:
- At least 300mm away from walls. (see Figure 1).
- At least 300mm from any light fitting or decorative
object which might obstruct smoke / heat entering the
Alarm.
300mm
300mm (min)
150mm
to 300mm
Fig.1

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Wall mounting (Ei146e only)
If ceiling mounting is impractical, only the Ei146e Optical
Smoke Alarm may be mounted on a wall, provided that:
a) the top of the detection element is between 150mm
and 300mm below the ceiling (see Figure 2);
b) the bottom of the detection element is above the level
of any door openings;
Wall mounting should only be considered where close
spaced beams or similar obstructions may preclude
ceiling mounting. It is considered to be the responsibility
of the installer/client to determine if the presence of
asbestos in the ceiling material would make ceiling
mounting ‘impractical’.
Sloping Ceiling
With a sloping or peaked ceiling install a Smoke Alarm
within 600mm of the peak (measured vertically) and a
Heat Alarm within 150mm.
If the height of the peak is less than 600mm in the case
of Smoke Alarms or 150mm in the case of Heat Alarms,
it is regarded as being flat. (see Figure 3).
300mm
300mm (min)
150mm
to 300mm
SMOKE ALARMS
<600mm
HEAT ALARMS
<150mm
APEX
xx
Fig.2
Fig.3

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2.5 Locations To Avoid
DON’T place Smoke or Heat Alarms in any of the
following areas:
• Bathrooms, shower rooms or other rooms where the
Alarm may be triggered by steam, condensation.
• Places where the normal temperature can exceed
40°C or be below -10°C (e.g. furnace rooms, directly
above ovens or kettles etc.) as the heat/steam could
cause nuisance alarms.
• Near a decorative object, door, light fitting, window
moulding etc., that may prevent heat or smoke from
entering the Alarm.
• Surfaces that are normally warmer or colder than the
rest of the room (e.g. attic hatches).
Temperature differences might stop heat or smoke
from reaching the Alarm.
• Next to or directly above heaters or air conditioning
vents, windows, wall vents etc. where air draughts
can change the direction of airflow and cause rapid
temperature fluctuations.
• In very high or awkward areas (e.g. over stairwells)
where it may be difficult to reach the Alarm (for testing,
hushing etc.).
• In or near very dusty or dirty areas as dust build-up on
the optical smoke sensor can impair performance. It
can block the insect screen mesh and prevent smoke
from entering the sensor. Dust build up can also
increase the response time of the heat sensor.
• Locate the Alarm at least 1m from dimmer controlled
lights and wiring as some dimmers can cause
interference.
• Locate the Alarm at least 1.5m and route wiring
at least 1m away from fluorescent light fittings as
electrical “noise” and/or flickering may affect the
Alarm. Do not wire into the same circuit as fluorescent
lights or dimmers.
• In insect infested areas. Small insects getting into
the optical smoke sensor can cause intermittent false
alarms. Insects and contamination on the heat sensor
can increase its response time.
• In a damp or humid area.
Do not locate Heat Alarms directly above a sink or
cooker – Keep at least 1 m horizontal distance between
these items and the Alarm.

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2.6 Mounting and Wiring
Disconnect the AC mains supply from the circuit that is
going to be used.
WARNING: to prevent injury, this apparatus must be
securely attached to the ceiling or wall in accordance
with the installation instructions.
1. Select a location complying with the advice in the
previous sections.
2. Place the mounting plate exactly where you want
to mount the Alarm. With a pencil mark the location
of the two screw holes. Taking care to avoid any
electrical wiring in the ceiling/wall, drill holes using
a 5.0mm drill bit through the centre of the marked
locations. Push the plastic screw anchors provided
into the drilled holes.
3. Lift off the wiring cover using a flat head screwdriver
as shown in Figure 4.
The house wiring must be connected to the terminal block
on the mounting plate as follows:
L: Live - connect to the house wires coloured brown or
marked L.
N: Neutral - connect to the house wires coloured blue
or marked N.
WARNING: Wiring must be installed in compliance with
local regulations.
WARNING: Mixing (or poorly terminating) the Live and
Neutral connections when interconnecting Alarms may
damage all the Alarms - ensure that the same colour
wires are used throughout the premises for Live, Neutral
and Interconnect wires.
We strongly recommend that you check for the following
before connecting the Alarm:
• check for Live and Neutral using a two probe tester.
• check for Live using a neon tester.
• check that the Interconnect wire is NOT connected to
Live, Neutral or Earth. Do not use an Earth wire for the
Interconnect line.
FOAM CEILING GASKET
INSERT SCREWDRIVER
TO LIFT AND REMOVE
WIRING COVER
Fig.4

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Note: The Alarm does not need to be earthed. However
the terminal marked is provided for the convenience
of the installer so that any copper Earth wire or cable
coloured green and yellow, can be safely terminated.
To interconnect Alarms connect all the IC terminals
together as shown in Figure 7 (see section 2.7 -
Interconnecting Alarms).
4. If the mains wires are recessed, bring the wires
through the rear hole in the mounting plate as shown
in Figure 5.
If the mains wires are being brought along the surface:
(a)position the mounting plate so the cable trunking is
as shown in Figure 5.
(b)the mounting plate has a removable section, take it
out to interface directly with 25mm conduit as shown
in Figure 6. If interfacing to 16mm conduit carefully
cut around the marked section, leaving the top intact
and replace the section. (If you are not using surface
wiring, the removable section must be left in place for
electrical safety reasons).
There are two other positions which are also suitable for
the surface wiring to enter (and exit) the alarm, one next
to the removable section and another directly opposite.
5. Carefully align the mounting plate and screw into
place. Connect the wires to the terminal block.
With recessed wiring, ensure the rear gasket seals
around the edge of the hole in the ceiling or wall.
This is to prevent air draughts affecting the smoke/
heat entering the Alarm. If the hole is too large or
the Alarm does not seal it, it should be sealed with
silicone rubber or equivalent.
REMOVEABLE
TRUNKING DOOR FOR
Fig.5
Fig.6

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6. Replace the wiring cover.
7. Attach the battery to the battery snaps. Carefully line
up the Alarm on the mounting plate and slide on.
8. Press and hold the test/hush button for 10 seconds.
The horn will sound. On release of the test button
the local alarm will stop sounding immediately and
the interconnected Alarms will stop sounding a few
seconds later.
9. Connect the mains power to the Alarm circuit. Check
the green light is on.
10. Attach the ‘fuse board label” provided on or near the
distribution board and write in date installed and the
number of Alarms on the circuit.
11. Ensure the Alarm operates correctly – see section
3- Maintaining your Alarm.
2.7 Interconnecting Alarms
With interconnected Alarms, when one device detects
fire, all will sound. All Alarms will sound but only Alarms
detecting the emergency event will be flashing their red
LED alarm indicator.
Heat Alarms must always be interconnected to
Smoke Alarms to ensure early warning. They are not
suitable as a fire safety device unless they are part of
a fire safety system i.e. when interconnected to one or
more Smoke Alarms.
Note: A maximum of 12 Alarms and accessory devices
can be interconnected in an Aico/Ei Electronics Alarm
system. If you wish to connect more than 12 Alarms,
contact the Aico Technical Department on 01691
664100.
WARNING: Do not hardwire interconnect mains
powered Alarms with low voltage or battery powered
Aico/Ei Electronics Alarms/devices or any other type
of Alarm produced by another manufacturer. Doing so
may damage the Alarms and could result in a shock or
fire hazard.
Systems using more than 3 or 4 Alarms must be very
carefully planned to ensure nuisance/false alarms are
not excessive. e.g. from cooking fumes or steam. The
following is suggested:
An Alarm Control Switch (model Ei1529RC) or
a Fire/CO Alarm Controller (model Ei450) should
be incorporated into the system and be readily
accessible to all occupants so that the source of an
alarm can be quickly identified.

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Make electrical connections as shown in Figure 7.
In the UK it is recommended that the following coloured
cores are used (for example with triple flat 6243Y cable).
230V supply Brown
Neutral Grey - sleeved blue at terminations
Interconnect Black
The interconnect wire (minimum 0.75mm2cable) must
be treated as if it was Live. It should be insulated and
sheathed.
A maximum of 250 metres of wire can be used (maximum
resistance between detectors 50 Ohms).
These Smoke/Heat 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/false alarms. Everybody may not be
aware that they are being tested or that it is a nuisance/
false alarm caused by cooking etc.
The Alarm can also be RF interconnected to other RF
Alarms and devices by fitting an Ei168RC mounting
plate. The Ei168RC will enable the Ei140e series
Alarms to communicate RF messages to other Ei
Electronics products such as the Ei450 RadioLINK
Alarm Controller where you can remotely locate, test
and hush your Ei140e Series Alarms using this wireless
controller.
For detailed user instructions on using the Ei168RC
with the Ei140e series, please consult the Ei168RC
instruction manual.
Fig.7

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2.8 Removing the Alarm
Locate removal slot
Insert screwdriver
Slide Alarm off mounting plate
Remove Alarm
With the screwdriver still inserted, push the lower
half of the Alarm away from the screwdriver, in the
direction of the arrows on the cover
Hold the lower half of the Alarm and remove from
the mounting plate by lowering the Alarm towards
the floor
Insert a flat-bladed screwdriver horizontally
about 10mm into the centre of the removal slot
Locate the arrow on the front face of the Alarm.
The slot is located directly above
WARNING: Disconnect mains before removal

17
User Section
3.1 Testing your Alarm
Frequent testing of all your Alarms is a requirement to
ensure they are functioning correctly. Guidelines and
best practices for testing are as follows:
1. After the system is installed.
2. Once monthly thereafter.
3. After prolonged absence from the dwelling (e.g. after
holiday period).
4. After repair or servicing of any of the systems
elements or household electrical works.
Inspecting and Testing procedure
(i) Check that the green LED power indicator is on
continuously. (If it is off, check circuit breakers, fuses
and wiring etc.)
(ii) Check that the red LED on the cover flashes once
every 40 seconds to indicate normal operation – If
the memory has been set indicating that the Alarm
has been activated in the last 24 hours, the red LED
will flash twice every 40 seconds. After 24 hours,
the memory will be cleared or if the Test button is
pressed.
(iii) Check also that there are no faults i.e. NO chirps (if
this is the case please see indicator summary table).
Check power
Test
Check that there is a constant green light
on the cover
Press the test/hush button for 10 seconds.
The Alarm will sound loudly
3. Maintaining your Alarm

18
(iv) Check for any sign of contamination such as
cobwebs or dust and clean the Alarm as described
in the “cleaning” section if necessary.
(v) Press the test button for up to 10 seconds to ensure
the sensor chamber, electronics and sounder are
working. A red light on the cover will flash while horn
is sounding. The alarm will stop when the button is
released. Pressing the test button is the best way to
ensure the Alarm is operating correctly. This action
will also clear the memory.
(vi) Interconnected Alarms only - Test the first unit by
pressing the button for 10 seconds. All the units
should alarm within 10 seconds of the first horn
sounding. The red light, on the first unit only, will
flash about once a second. On releasing the button,
the local Alarm will stop sounding immediately and
the remote Alarms will stop sounding approximately
3 seconds later (if testing using RF interconnection
this could take slightly longer). This feature gives an
audible verification that the interconnection is OK.
Check all the other Alarms in the same way.
(vii) Check the functioning of the battery back-up directly
after installation and then at least yearly as follows:
- Turn off the mains power at the distribution board
and check that the green LED is extinguished.
- Press the test button and ensure the horn sounds
loudly for 10 seconds.
- Monitor the Alarm over a 3-minute period for any
fault chirps and red LED fault indicator flashes
(Refer to Fault Mode table on what to do if this
occurs).
- Turn the mains supply at the distribution board back
on.
Switching off Mains for long periods
If the premises are regularly being left without mains
power for long periods the Smoke/Heat Alarms should
be removed from their mounting plates to prevent the
batteries becoming fully depleted. (This is sometimes
done with holiday homes which are only occupied in the
Summer).
The Alarms must be re-attached to the mounting plates
when the premises are re-occupied.
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 effective apparatus
is used.

19
3.2 Changing the battery back up
NOTE: Constant exposure to high or low temperatures
or high humidity may reduce the life of the battery.
1. Switch off mains power to Alarm (green light on cover
should go out).
2. Remove unit as shown in “ALARM REMOVAL”
section on page 16.
3. Locate battery slot in base of Alarm as shown below.
4. Unclip battery from battery snap connectors.
5. Connect new battery by clipping back on to battery
snap connectors. Use only 9V Alkaline batteries
Duracell MN1604, Energizer 522. Other batteries can
cause problems.
We recommend that the “replace by date” on the
battery should still have at least 2 years to go. Older
batteries will give beeps prematurely.
6. Slide unit back on to the base. A click should be
heard as the Alarm engages. (The unit cannot be
replaced on the base unless a battery is installed).
7. Press and hold the test button - horn should sound
loudly.
Reinstate mains power to Alarm (green light on cover
should come on).
3.3 Cleaning your Alarm
Clean your Alarm regularly. In dusty areas it may be
necessary to clean the Alarm more frequently.
(Ei141RC/144RC/146RC ONLY)
Vacuum
Vacuum around the side vents to clean
Wipe
Clean the Alarm with a clean damp cloth
and dry thoroughly

20
Vacuum
Vacuum around the side vents to clean
Wipe
Clean the Alarm with a clean damp cloth
and dry thoroughly
Use the narrow nozzle attachment of your vacuum
cleaner to remove dust, insects and cobwebs from the
sides and cover slots where the airflow enters. Clean
the outside cover by occasionally wiping with a clean
damp cloth then dry thoroughly with a lint free cloth. Do
not use any cleaning agents, bleaches, detergents or
polishes, including those in aerosol cans.
WARNING: Do not paint your Alarm.
Other than the cleaning and changing the battery back
up described above, no other customer servicing of this
product is required. Repairs, when needed, must be
performed by the manufacturer.
All Alarms are prone to dust and insect ingress which
can cause nuisance/false alarms or failure to alarm.
In certain circumstances even with regular cleaning,
contamination can build up in the smoke sensing chamber
causing the Alarm to sound or fail. 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.