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

1.1 Installation Guide

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,

WARD

THE FL

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

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.

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

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

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

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.

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

(only in areas with cooking fumes, steam,

very dirty/dusty)

Optical/Ionisation/Heat Alarm Selection

Locations & Performance

1 2

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

KE ALARM

<600

HEAT ALARM

APEX

Figure 1 Figure 2

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

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