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1.1 Installation Guide
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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,
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REMOVE ALARM
LOCATE REMOVAL SLOT
LOCATE THE ARROW ON THE FRONT FACE OF THE ALARM.
THE SLOT IS LOCATED DIRECTLY ABOVE THE ARROW
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INSERT SCREWDRIVER
INSERT A FLAT-BLADED SCREWDRIVER HORIZONTALLY
APPROX. 1cm INTO THE CENTRE OF THE REMOVAL SLOT
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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.
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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
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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 )
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
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