Aico 160 User Manual
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Product Guide for
Smoke & Heat Alarms
Ahead on Quality
Ahead on Performance
Ahead on Features
Ahead on Quality
Ahead on Performance
Ahead on Features
The Solution Provider for
Smoke & Heat Alarm Installation Standards
The Ei Range of Smoke Alarms from Aico offers the complete solution
to meeting the new requirements of BS 5839: Pt.6: 2004 for Residential
Fire Detection. Proven and reliable technology is combined with
innovative product development to provide the best possible
performance available in real fire situations.Various options are
offered in order that specifiers and end users can select the ideal
product for every individual installation with regard to the building
and its occupants. All options offer value for money, unprecedented
ease for the installer and aesthetically pleasing designs.
Our new RadioLINK product is the ultimate solution as it provides for
wireless interconnection of the alarms and achieves 'best practice
installations' in the easiest and most economical way.
What does the British Standard BS 5839:
Part 6: 2004 Recommend?
This is the definitive code of practice to which Architects, Building
Professionals, Enforcing Authorities, Landlords and Installers should refer
for recommendations on the design, installation and use of smoke
and heat alarms in the majority of domestic dwellings. Landlords in
both the public and private sector are considered to have a duty of
care to fit compliant smoke and heat alarms.
New Build Properties
& Materially Altered Dwellings
One to three storeys - Grade D, LD2
●
Mains alarms with battery back-up
●
Optical smoke alarms in circulation spaces - hallways & landings
e.g. Ei146 or Ei166RC with or without RadioLINK
●
Heat alarm in the kitchen e.g. Ei144 or Ei164RC with or without
RadioLINK
●
Smoke alarm or heat alarm as best suited for the particular
circumstance (see page 4 for definitions and usage), in the main
living room
●
All alarms should be interconnected
● The sound pressure level of the alarm signal measured at the
doorway of each bedroom with the door open should be at
least 85dB(A)
Existing Tenanted Properties
Two and three storey - Grade D, LD3
●
Mains alarms with battery back-up
●
Optical alarms in circulation spaces - hallways & landings e.g. Ei146
or Ei166RC with or without RadioLINK
●
If a fire risk assessment shows the property or occupier
to be a high fire risk, increase the number of alarms
installed to meet the risk - e.g. follow new build
recommendations for an LD2 installation
●
All alarms should be interconnected
● The sound pressure level of the
alarm signal measured at the
doorway of each bedroom
with the door open should
be at least 85dB(A)
Single storey - Grade F, LD3
●
Battery powered with a minimum battery life of 5 years e.g.
Ei 10 year alarm
●
Optical smoke alarm in circulation spaces - hallway e.g.
Ei3105TYCH
●
If a fire risk assessment identifies a concern that the occupier
cannot or may not replace a battery, use mains alarms or mains
with battery back-up
● If a fire risk assessment shows the property or occupier to be
a high fire risk, increase the number of alarms installed to meet
the risk - e.g. follow new build recommendations for an
LD2 installation
System Grades and Categories
Six different grades of fire detection systems are defined and generally speaking - the greater the fire risk the more comprehensive
the system should be. Briefly, the Grades are as follows:
GRADE A - A full system with control and indicating equipment
installed to BS 5839: Part 1
GRADE B - Detectors and sounders using simpler specified
equipment
GRADE C - Detectors and sounders or alarms with central control
GRADE D - Mains powered alarms with an integral stand-by
power supply
GRADE E - Mains powered alarms with no stand-by
power supply
GRADE F - Battery powered alarms
Three different categories of life protection systems are defined. Briefly
these are (starting at the highest):
LD1 - Alarms in all circulation spaces that form part of escape routes
and all areas where a fire might start, but not bathrooms,
shower rooms or toilets
LD2 -
Alarms in all circulation spaces that form part of escape
routes and rooms or areas that present a high fire risk
LD3 - Alarms in circulation spaces that form part of escape routes
The Code emphasises that no one type of alarm is most suitable for all
applications. Consideration must be given to the most suitable type of
detection - optical, ionisation and heat (see page 4 for definitions
and usage).
2
The UK Market Leader
As Europe's leading manufacturer of smoke alarms with over 30 years
experience, we currently outsell every comparable product on the
market. Quality in our life saving products is never compromised. We
have a record of industry firsts including the first BSI Kitemarked range,
the first rechargeable back-up power supply in a smoke alarm, the
first mains powered heat alarm, the first with hush technology across
the range and the
only
Easi-fit design.
Ei now offer another first with the RadioLINK wireless interconnect
system.
Residential Fire Detection
& Regulations ... how do they affect me?
What do Building Regulations
Demand in New Build and Materially
Altered Dwellings?
Architects, builders and installers must comply with Building
Regulations and install mains powered smoke alarms in new and
materially altered dwellings.
England & Wales
Building Regulations Approved Document B (Fire Safety) minimum
requirements are currently Grade D, LD3, but also defines that
installation should be to BS 5839 Pt.6 and therefore Grade D,LD2
is recommended.
Grade D, LD2
●
Mains alarms with battery back-up wired to a lighting circuit or a
dedicated circuit
●
Smoke alarms are required in the circulation spaces such as
hallways and landings. In general optical alarms are recommended
e.g. Ei146,Ei166RC
●
Heat alarm to be installed in the kitchen where there is no door
separating the kitchen from the circulation space, e.g. Ei144, Ei164RC
● Building extensions and room conversions, above ground floor level,
require a Grade D, LD2 system to be installed in the property
●
Smoke and heat alarms should be interconnected
●
Mains powered smoke and heat alarms may be interconnected
using radio-links
3
Service & Availability
At Aico we believe the very best alarm technology should be
accompanied by the very best support possible. We offer
unrivalled product information for end users of the product,
specifiers and installers.
On the ground we have an experienced regionally based
technical sales team, a highly trained customer service department
and a responsive sales office. Our products are distributed to the
trade locally via most electrical wholesalers throughout the UK.
Expert training and on site installation advice is readily available.
Scotland
Building Standards Technical Handbook No 2 (Fire) requirements
are currently:
Grade D, LD3
● Mains smoke alarms with battery back-up
● Smoke alarms are required in the circulation spaces, hallways
& landings
●
Smoke alarms should be interconnected
● Alarms may be interconnected using radio-links
Northern Ireland
Building Regulations (Northern Ireland) Technical Booklet E (Fire
Safety) requirements were amended in June 2005 to:
Grade D, LD2
● Mains Smoke alarms with a battery back-up
● Smoke alarms are required in the circulation spaces, hallways
& landings
● A smoke alarm is required in the ‘principal habitable room’
e.g. living room
● A heat alarm is required in every kitchen
● Loft conversions require all the above to be installed
●
Smoke and heat alarms should be interconnected
● Alarms may be interconnected using radio-links
More comprehensive information
is provided in our free 'Guide To
Residential Fire Detection'.
Ionisation Alarms
where should they be used?
Ionisation type sensors are particularly sensitive to the almost invisible
smoke produced by fast flaming fires.This makes them more liable to
false alarm due to cooking fumes if sited in a hallway close to a
kitchen. Ionisation alarms are less vulnerable to false alarms caused
by dense tobacco smoke, excessive dust and insect ingress. The
BS 5839: Pt.6: 2004 Standard recommends that ionisation alarms
should not be used in hallways and landings, where there is a risk of
false alarms caused by cooking fumes.
The Importance of Type
& Interconnection of
4
Heat Alarms
where should they be used?
Heat alarms are less likely to cause false alarm problems as they
are not responsive to any type of smoke or fumes, only heat.
Because of the potential for a slower response than smoke alarms,
they should only be used in a fire alarm system that also includes
smoke alarms, and all of the alarms must be interconnected. The
BS 5839: Pt.6: 2004 recommends that heat alarms should be used in
kitchens. It goes on to suggest that they may also have a role to
play in the main living room but they should not be installed in
circulation spaces or areas where fast response to fire is required.
Optical Alarms
where should they be used?
Optical sensors are more responsive to smouldering fires producing
large particle smoke typical of fires involving furniture and bedding.
They are more immune to invisible smoke produced by 'burning the
toast' and similar cooking fumes. This makes them ideal for siting in
hallways close to kitchens where false alarms from ionisation alarms
may be a particular problem. The BS 5839: Pt.6: 2004 Standard
recommends the use of optical alarms in circulation spaces of a
dwelling, such as hallways and landings. Optical alarms are prone to
false alarm if exposed to steam and should not be located too close
to poorly ventilated bathrooms or shower rooms.
Note: Either type of sensor is generally suitable. The choice of sensor type should, if possible, take into account the type of fire
that might be expected and the need to avoid false alarms.
1. A light beam is pulsed in the sensor chamber every 10 seconds to ‘look’for
smoke. Any smoke present has to be visible to the naked eye so that the
receptor can ‘see’ it. If no smoke is detected, the alarm will remain in a
standby state.
2. When large particle smoke is detected, the light beam will be scattered onto
the light receptor.
3. This will then send an electrical signal to the IC (Integrated Circuit).
4. If two consecutive signals are received by the IC, the alarm will sound.
1. Inside the sensor chamber is a minute (safe) radioactive element that ionises
the air within. This causes a small current to flow in the chamber and this will
remain constant for the life of the alarm unless smoke particles enter.
2. When smoke enters the sensor chamber, the balance of the current
is disturbed.
3. This is detected by the electronics in the alarm circuitry and a signal is sent to
the Integrated Circuit (IC).
4. This causes the alarm sounder to operate.
1. A thermistor (a heat sensitive resistor) is sited in the sensor chamber of
the alarm.
2. When the temperature rises the resistance of the thermistor reduces.
3. The IC continuously monitors the resistance of the thermistor.When this
indicates the temperature is over 54 ºC the IC sends a signal to the
sounder circuit.
4. The alarm sounder then operates.
ALARM SENSOR TYPES
Selection, Positioning, Wiring
Smoke & Heat Alarms
5
SITING DIAGRAMS
Simple Interconnect Wiring for all Mains
Powered Smoke and Heat Alarms
140/160RC Series
140/160RC Series
To mains
power
supply e.g. lighting
circuit or
distribution
board
To other
alarms
in the system
(as required)
Live
Neutral
Interconnect
Which Alarms to Fit Where
Important
Interconnection is
vital to ensure the
alarm is heard
throughout the
property by all
occupants.
Average two storey house Single storey dwelling
Optical or Ionisation smoke alarm as best suited for the particular circumstances
Optical smoke alarm
Smoke or heat alarm as best suited for the particular circumstances
Heat alarm
Do not install smoke or heat alarms in bathrooms, shower rooms or toilets
The control switch when
used should be fitted at
an easy access point
preferably in the hall or
living area.
For additional guidance please use the Customer Service Helpline 0870 758 4000
Interconnection of alarms is vital to ensure an activated alarm is heard throughout
the property by all occupants. Interconnecting Ei mains powered alarms has never
been simpler using standard 3 core cable.
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