Ei Electronics Ei2110e Series Instruction Manual
Ei2110e Series
Instruction Manual
MULTI-SENSOR FIRE ALARM
with Rechargeable Lithium Cell Back-up
230V~
INSTALLER Section
P/N B18397 Rev1
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1. QUICK GUIDE
1.1 INSTALLATION GUIDE
1.2 ALARM REMOVAL
2. HOW MANY ALARMS TO INSTALL
2.1 LD SYSTEMS
2.2 SELECTING ALARM TYPE
2.3 GRADE D SYSTEM
3. POSITIONING ALARMS
3.1 LOCATIONS TO AVOID
4. INSTALLATION
4.1 MOUNTING & WIRING ALARMS
4.2 INTERCONNECTING ALARMS
CONTENTS
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INSTALL IN THE CENTRE OF CEILING AT LEAST 300mm FROM
LIGHT FITTINGS & WALLS
ENSURE MAINS POWER IS CORRECTLY CONNECTED TO L & N
TERMINALS ON ALL INTERCONNECTED ALARMS - OTHERWISE
UNITS WILL BE DAMAGED
DO NOT FIT ACTUAL ALARMS UNTIL ALL BUILDING WORK IS
COMPLETED TO AVOID CONTAMINATION. AFTER CHECKING
OPERATION, COVER ALARMS WITH DUST COVER UNTIL
REQUIRED FOR USE
HIGH VOLTAGE INSULATION TESTS CAN BE APPLIED TO
MOUNTING PLATES ONLY. ALARM HEADS MUST BE REMOVED
DO NOT ATTEMPT TO OPEN THE ALARM AS IT IS PERMANENTLY
SEALED FOR SAFETY
INTERCONNECT ALL ALARMS
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2. How many Alarms to install
- Categories & Grades -
The ideal system would consist of Multi-Sensor Fire Alarms installed throughout the
dwelling apart from the kitchen which should have a Heat Alarm installed (Note:
Alarms should not be installed in toilets/bathrooms).
The Multi-Sensor Alarm can be installed for superior performance anywhere the
regulations specify an Optical Smoke Alarm or an Ionisation Smoke Alarm.
(The Ei2110e Multi-Sensor Fire Alarm can also be used and interconnected with any
Ei Electronics mains powered compatible Alarm if necessary).
The advice here follows the guidance in British Standard BS 5839-Part 6:2013 in
general (for further information see the BS standard itself).
The main reason for fitting 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 in all escape routes and in all
rooms that contain potential sources of fire. Another important consideration is 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.
BS 5839-Part 6:2013 gives guidance on:
- how many Alarms to install
- what type of Alarm to use
- where to position Alarms
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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 are needed.
2.1 LD Systems
LD (Life protection in Dwellings) systems define the level of fire protection required for
households, depending on the fire risk and regulations. Ei Electronics recommends
that an LD1 system be installed for optimum protection.
Please see following pages for detailed information.
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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)
Basic Protection LD2: 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 )
BASIC PROTECTION
2.2 Selecting Alarm Type
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Multi-Sensor Fire Alarm & Heat Alarm Selection
Locations & Performance
Locations
Hall, Corridors, Escape Routes
Alarm Type
Multi-Sensor
Fire Alarm
Heat
Alarm
Bedrooms
Shower / Bathroom
Kitchens
Living Rooms
Fire Response
Slow Smouldering Fires
(polyurethane foam, ignited bedding etc.)
Nuisance Alarm Immunity
Steam, Condensation & Dust Build-up
Cooking Fumes
- Best
- Better
- Good
- Not Suitable
Fast Flaming Fires
(flaming wood/plastic, oil, solvents, chip pans etc.)
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Temperature >580C
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Some Fire authorities (concerned with the slow response of Heat Alarms) advise that Smoke Alarms (or
Multi-Sensor 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 Multi-Sensor Alarm sited outside in the corridor.
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In enclosed kitchens with doors closed.
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Fast flaming fires generate considerable amounts of heat. The Multi-Sensor Fire Alarm has a heat
enhanced optical smoke sensor to improve the response of the sensor to these types of fires.
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Do not install in kitchens.
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.
2.3 Grade D System
The mains powered, with battery back-up, Multi-Sensor Fire Alarm covered by these instructions
will meet 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 200m
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in area
- existing dwellings with poor structural fire precautions, up to three storeys, with no floor over
200m
2
in area
- Houses in Multiple Occupation (HMOs) of one or two-storeys, with no floor over 200m
2
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.
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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 alarms must be mounted away
from corners. Place 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.
Note: Ceiling mounting is recommended - do not wall mount Alarms.
Sloping Ceiling
In areas with sloping or peaked ceilings install the Alarm 900mm from the highest point
measured horizontally (see Figure 2). This is because “dead air” at the apex may
prevent smoke from reaching the Alarm.
900mm
300mm
300mm (min)
SMOKE ALARMS
<600mm
HEAT ALARMS
<150mm
APEX
xx
Figure 1 Figure 2
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3.1 Locations To Avoid
DON’T place Multi-Sensor Fire Alarms in any of the following areas:
• Bathrooms, kitchens, shower rooms, garages or other rooms where the 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 Multi-Sensor Fire 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 Alarm.
• Next to or directly above heaters or air conditioning vents, windows, wall vents etc. that 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.).
• Locate away from very dusty or dirty areas as dust build-up in the optical sensor chamber can
impair performance. It can also block the insect screen mesh and prevent smoke from entering
the chamber.
• 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.
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