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NFPA
Recommendations for Detector
InstalIation:
Supervised
Smoke Detector
Transmitter (SSD
T)
The Nation Fire Protection Association’s Standard 74, Section 2-l,
reads as follows:
‘2-1.1.1: Smoke
detectors shall be installed outside of each
separate sleeping area in the immediate vicinity of the bedrooms
and on each additional story of the family living unit, including
basements and excluding crawl spaces and
unfinished
attics. The
provisions of 2-1.1.1 represent the minimum number of detectors
required by this standard. It is
recomm
ended that the householder
consider the use of additional smoke or heat detectors for
increased protection for those areas separated by a door from the
areas
protected
by the required smoke detector under 2-1.1.1
above. The recommended additional areas are: living
room,
dining
room, bedroom(s), kitchen, attic (finished or
unfinished),
furnace room, utility room, basement, integral or attached garage,
and hallways not covered under 2-1.1.1 above. However, the use of
additional detectors remains the option of the householders.’
SSDT Installation Considerations:
.
When ceiling mounted, the SSDT should be located in
the center of the room or
hall,
at least four inches from
any
wall.
When the SSDT is mounted on a wall, the top
of the unit should be four to twelve inches from the
ceiling.
.
Do not install the
SSDT:
where normal ambient temperatures are above
l20
degrees
F.
or below
40
degrees F.
in
front of air conditioners, heating vents, or other
locations where normal air circulation
will
keep
smoke from entering the detector.
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