Ei Electronics Ei141 Ionisation User manual

IDEALLY INSTALL IN THE CENTRE OF CEILING
AT LEAST 300mm FROM LIGHT FITTINGS
LOCATE IONISATION ALARMS AWAY FROM
KITCHENS TO PREVENT NUISANCE ALARMS
ENSURE LIVE MAINS IS CORRECTLY
CONNECTED TO L TERMINALS ON ALL
INTERCONNECTED ALARMS - OTHERWISE
UNITS WILL BE DAMAGED
DO NOT FIT ACTUAL ALARM UNTIL ALL
BUILDING WORK IS COMPLETED TO AVOID
CONTAMINATION. AFTER CHECKING
OPERATION, COVER SMOKE ALARM WITH
DUST COVER UNTIL REQUIRED FOR USE
DISCONNECT THE ALARM BEFORE APPLYING
HIGH VOLTAGE INSULATION TESTS TO WIRING
DO NOT ATTEMPT TO OPEN THE ALARM AS
IT IS PERMANENTLY SEALED FOR SAFETY
DO NOT CONNECT ALTERNATIVE ENERGY
SOURCES e.g. WIND, SOLAR, UPS WITH
NON-SINUSOIDAL OUTPUTS
(see INSTALLATION section on page 10)
INTERCONNECT ALL ALARMS
230V~ SMOKE & HEAT ALARMS
INSTALLER INSTRUCTIONS
Ei141 - Ionisation Ei144 - Heat Ei146 - Optical
RECHARGEABLE LITHIUM CELL BACK-UP
Ei161RC - Ionisation Ei166RC - OpticalEi164RC - Heat
ALKALINE PRIMARY BATTERY BACK-UP
© Ei Electronics 2012P/N B16008 Rev3

1.1 Installation Guide
2

2. ALARM REMOVAL
SLIDE ALARM OFF BASE
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
HOLD THE LOWER HALF OF THE ALARM AND REMOVE FROM
THE BASE PLATE BY MOVING IT VERTICALLY DOWNWARDS,
T
O
WARD
S
THE FL
OO
R.
REMOVE ALARM
LOCATE REMOVAL SLOT
LOCATE THE ARROW ON THE FRONT FACE OF THE ALARM.
THE SLOT IS LOCATED DIRECTLY ABOVE THE ARROW.
INSERT SCREWDRIVER
INSERT A FLAT-BLADED SCREWDRIVER HORIZONTALLY
APPROX. 1cm INTO THE CENTRE OF THE REMOVAL SLOT
T
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3

2. HOW MANY ALARMS TO INSTALL
- CATEGORIES & GRADES -
The advice here follows the guidance in British Standard
BS 5839-Part 6: 2004 in general (for further information
see the BS standard itself).
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 fire 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 units are not disabled or
ignored.
The BS standard 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. The risk assessment
is 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 are needed.
2.1 Categories of System
There are three Categories of LD systems for Life
protection in Dwellings that can be installed, depending
on the fire risk and regulations.
Please see following pages for detailed information.
4

for dwellings where occupants may be at high risk (e.g. elderly)
OPTIMUM PROTECTION
LD1
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)
Multi Storey Dwelling LD1
Heat Alarms located in:
(Heat Alarms must be within 5.3m of potential fire
sources)
each Kitchen
garages
Living
Room
Bedroom Bathroom
Kitchen
Bedroom Shower
Garage
Smoke or Heat Alarms located in:
each Living room (i.e. most frequently used
daytime room)
Smoke Alarms located:
on each storey
every 7.5 m of hallways and escape routes
within 3m of all bedroom doors
in all other rooms & areas other than listed below
(apart from toilets & bathrooms )
Additional Protection LD2: As LD3, but in addition
Smoke or Heat Alarms in all rooms or areas that
present a high fire risk to occupants.
Heat Alarms located in:
(Heat Alarms must be within 5.3m of potential fire
sources)
each Kitchen
Smoke or Heat Alarms located in:
each Living room (i.e. most frequently used
daytime room)
Smoke Alarms located:
on each storey
every 7.5 m of hallways and escape routes
within 3m of all bedroom doors
(apart from toilets & bathrooms )
Bedroom
Bedroom Bedroom
Kitchen / Dining Room
Living Room
Bathroom
Single Storey Dwelling LD1
Heat Alarm do not fit alarm
Ionisation or Optical
Smoke Alarm Optical Smoke Alarm
for existing dwellings
MINIMUM PROTECTION
LD3
Minimum Protection LD3:
Smoke Alarms in all
hallways, stairways and circulation areas that form
part of the escape routes from the dwelling.
Multi Storey Dwelling LD3
Living
Room
Bedroom Bathroom
Kitchen
Bedroom Shower
Garage
Smoke Alarms located:
on each storey
every 7.5 m of hallways and escape routes
within 3m of all bedroom doors
(apart from toilets & bathrooms )
Bedroom
Bedroom Bedroom
Kitchen / Dining Room
Living Room
Bathroom
Single Storey Dwelling LD3
do not fit alarm
Ionisation or Optical
Smoke Alarm Optical Smoke Alarm
for new or materially altered dwellings or existing dwellings
with poor structural fire precautions
ADDITIONAL PROTECTION
LD2
Multi Storey Dwelling LD2
Living
Room
Bedroom Bathroom
Kitchen
Bedroom Shower
Garage
Bedroom
Bedroom Bedroom
Kitchen / Dining Room
Living Room
Bathroom
Single Storey Dwelling LD2
Heat Alarm do not fit alarm
Ionisation or Optical
Smoke Alarm Optical Smoke Alarm
5

for dwellings where occupants may be at high risk (e.g. elderly)
OPTIMUM PROTECTION
LD1
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)
Multi Storey Dwelling LD1
Heat Alarms located in:
(Heat Alarms must be within 5.3m of potential fire
sources)
each Kitchen
garages
Living
Room
Bedroom Bathroom
Kitchen
Bedroom Shower
Garage
Smoke or Heat Alarms located in:
each Living room (i.e. most frequently used
daytime room)
Smoke Alarms located:
on each storey
every 7.5 m of hallways and escape routes
within 3m of all bedroom doors
in all other rooms & areas other than listed below
(apart from toilets & bathrooms )
Additional Protection LD2: As LD3, but in addition
Smoke or Heat Alarms in all rooms or areas that
present a high fire risk to occupants.
Heat Alarms located in:
(Heat Alarms must be within 5.3m of potential fire
sources)
each Kitchen
Smoke or Heat Alarms located in:
each Living room (i.e. most frequently used
daytime room)
Smoke Alarms located:
on each storey
every 7.5 m of hallways and escape routes
within 3m of all bedroom doors
(apart from toilets & bathrooms )
Bedroom
Bedroom Bedroom
Kitchen / Dining Room
Living Room
Bathroom
Single Storey Dwelling LD1
Heat Alarm do not fit alarm
Ionisation or Optical
Smoke Alarm Optical Smoke Alarm
for existing dwellings
MINIMUM PROTECTION
LD3
Minimum Protection LD3: Smoke Alarms in all
hallways, stairways and circulation areas that form
part of the escape routes from the dwelling.
Multi Storey Dwelling LD3
Living
Room
Bedroom Bathroom
Kitchen
Bedroom Shower
Garage
Smoke Alarms located:
on each storey
every 7.5 m of hallways and escape routes
within 3m of all bedroom doors
(apart from toilets & bathrooms )
Bedroom
Bedroom Bedroom
Kitchen / Dining Room
Living Room
Bathroom
Single Storey Dwelling LD3
do not fit alarm
Ionisation or Optical
Smoke Alarm Optical Smoke Alarm
for new or materially altered dwellings or existing dwellings
with poor structural fire precautions
ADDITIONAL PROTECTION
LD2
Multi Storey Dwelling LD2
Living
Room
Bedroom Bathroom
Kitchen
Bedroom Shower
Garage
Bedroom
Bedroom Bedroom
Kitchen / Dining Room
Living Room
Bathroom
Single Storey Dwelling LD2
Heat Alarm do not fit alarm
Ionisation or Optical
Smoke Alarm Optical Smoke Alarm
6

for dwellings where occupants may be at high risk (e.g. elderly)
OPTIMUM PROTECTION
LD1
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)
Multi Storey Dwelling LD1
Heat Alarms located in:
(Heat Alarms must be within 5.3m of potential fire
sources)
each Kitchen
garages
Living
Room
Bedroom Bathroom
Kitchen
Bedroom Shower
Garage
Smoke or Heat Alarms located in:
each Living room (i.e. most frequently used
daytime room)
Smoke Alarms located:
on each storey
every 7.5 m of hallways and escape routes
within 3m of all bedroom doors
in all other rooms & areas other than listed below
(apart from toilets & bathrooms )
Additional Protection LD2: As LD3, but in addition
Smoke or Heat Alarms in all rooms or areas that
present a high fire risk to occupants.
Heat Alarms located in:
(Heat Alarms must be within 5.3m of potential fire
sources)
each Kitchen
Smoke or Heat Alarms located in:
each Living room (i.e. most frequently used
daytime room)
Smoke Alarms located:
on each storey
every 7.5 m of hallways and escape routes
within 3m of all bedroom doors
(apart from toilets & bathrooms )
Bedroom
Bedroom Bedroom
Kitchen / Dining Room
Living Room
Bathroom
Single Storey Dwelling LD1
Heat Alarm do not fit alarm
Ionisation or Optical
Smoke Alarm Optical Smoke Alarm
for existing dwellings
MINIMUM PROTECTION
LD3
Minimum Protection LD3: Smoke Alarms in all
hallways, stairways and circulation areas that form
part of the escape routes from the dwelling.
Multi Storey Dwelling LD3
Living
Room
Bedroom Bathroom
Kitchen
Bedroom Shower
Garage
Smoke Alarms located:
on each storey
every 7.5 m of hallways and escape routes
within 3m of all bedroom doors
(apart from toilets & bathrooms )
Bedroom
Bedroom Bedroom
Kitchen / Dining Room
Living Room
Bathroom
Single Storey Dwelling LD3
do not fit alarm
Ionisation or Optical
Smoke Alarm Optical Smoke Alarm
for new or materially altered dwellings or existing dwellings
with poor structural fire precautions
ADDITIONAL PROTECTION
LD2
Multi Storey Dwelling LD2
Living
Room
Bedroom Bathroom
Kitchen
Bedroom Shower
Garage
Bedroom
Bedroom Bedroom
Kitchen / Dining Room
Living Room
Bathroom
Single Storey Dwelling LD2
Heat Alarm do not fit alarm
Ionisation or Optical
Smoke Alarm Optical Smoke Alarm
7

2.2 Selecting Alarm Type
1Optical Smoke Alarms are recommended due to their
excellent response to smouldering fires. If there is likely to be
problems with steam, contamination or dust build-up, or if there
is significant risk of a fast burning clean fire an Ionisation Smoke
Alarm should be fitted.
2Some Fire Authorities recommend that both Ionisation and
Optical Smoke Alarms should be fitted for the fastest response
to all types of fires.
3Some Fire authorities (concerned with the slow response of
Heat Alarms) advise that Smoke Alarms should be fitted. This
is acceptable according to BS 5839-6 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
Smoke Alarm sited outside in the corridor.
4In enclosed kitchens with doors closed.
5Greatly depends on ventilation and distance from source of
fumes.
8
Locations
Hall, Corridors, Escape Routes
Alarm Type
Optical Ionisation Heat
Bedrooms
Shower / Bathroom
Kitchens
Living Rooms
Fire Response
Slow Smouldering Fires
(polyurethane foam, ignited bedding etc.)
Nuisance Alarm Immunity
Cooking Fumes
Steam, Condensation &
Dust Build-up
Fast Flaming Fires
(chip pans, flaming wood/plastic, oil,
solvents etc.)
- Best - Good - Acceptable - Not Suitable
Temperature >58
0
C
(only in areas with cooking fumes, steam,
very dirty/dusty)
Optical/Ionisation/Heat Alarm Selection
Locations & Performance
1 2
3
4
5

Improved Audibility
The effectiveness of Category LD2 and LD3 systems can
be significantly enhanced if an additional Smoke 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.
2.3 Grade D, E & F Systems
The mains powered Smoke and Heat Alarms with battery
back-up covered by these instructions are suitable for Grade
D, E & F Systems.
A Grade D system is needed for:
- new or materially altered dwellings, up to three-storeys,
with no floor over 200m2
- existing dwellings with poor structural fire precautions, up
to three storeys, with no floor over 200m2
- Houses in Multiple Occupation (HMOs) of one or
two-storeys, with no floor over 200m2
- 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.
3. POSITIONING ALARMS
The locations must comply with applicable building
regulations.
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 & Heat Alarms
must be mounted away from corners. Place the unit:
- At least 0.3m away from walls. See Figure 1.
- At least 0.3m from any light fitting or decorative object
which might obstruct smoke / heat entering the Alarm.
(Smoke Alarms should be located directly on the ceiling or,
if not possible, up to 575mm below it. Heat Alarms should
be located directly on the ceiling or, if not possible, up to
125mm below it).
Sloping Ceiling
With a sloping or peaked ceiling install a Smoke Alarm
within 600mm of the peak or a Heat Alarm within
150mm of the peak (measured vertically). If this height
0
.
3m
S
M
O
KE ALARM
S
<600
m
m
HEAT ALARM
S
<
15
0
m
m
APEX
x
x
Figure 1 Figure 2
9

is less than 600mm for Smoke Alarms or 150mm for
Heat Alarms it is regarded as being flat (see Figure 2).
3.1 Locations To Avoid
DON’T place Smoke Alarms 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 away from sources of normal smoke/
fumes.
DON’T place Heat Alarms in any of the following
areas:
• Bathrooms, shower rooms or other rooms where the unit
may be triggered by steam or condensation.
DON’T place Smoke or Heat Alarms in any of the
following areas:
• Places where the normal temperature can exceed 40°C or
be below 4°C (e.g. attics, 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 smoke or heat 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 smoke or heat 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 (e.g. over stairwells) where
it may be difficult to reach the alarm (for testing, hushing
or battery replacement).
• Locate away from very dusty or dirty areas as dust build-up
in the chamber can impair performance. It can also block the
insect screen mesh and prevent smoke from entering the
smoke detector chamber.
• Locate the unit at least 1m from dimmer controlled lights
and wiring as some dimmers can cause interference.
• Locate unit at least 1.5m and route wiring at least 1m
away from fluorescent light fittings as electrical “noise”
and/or flickering may affect the unit. Do not wire into the
same circuit as fluorescent lights or dimmers.
• Do not locate in insect infested areas. Small insects
getting into the smoke detector chamber can cause
intermittent alarms. Insects and contamination on the
Heat Alarm sensor can increase its response time.
4. INSTALLATION
The Alarm is designed to be permanently mounted ,
using it’s 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. It requires a current of 40mA. The Alarm
10