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Figure 6: Alarm location
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(2)
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(3)
(4)
A
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(1) Dining Room
(2) Kitchen
(3) Living Room
Required smoke alarms
Additional alarms required for new construction
Where to locate the required smoke alarms in existing
construction
The major threat from fire in a family living unit occurs at night
when everyone is asleep. The principal threat to persons in
sleeping areas comes from fires in the remainder of the unit.
Therefore, a smoke alarm is best located between the
bedroom areas and the rest of the unit. In units with only one
bedroom area on one floor, the smoke alarm should be located
as shown in Figure 6 A.
In family living units with more than one bedroom area or with
more than one floor, more than one smoke alarm is required,
as shown in Figure 6 B.
In addition to smoke alarms outside of the sleeping areas, the
installation of a smoke alarm on each additional story of the
family living unit, including the basement, is required. These
installations are shown in Figure 6 C. The living area smoke
alarm should be installed in the living room or near the stairway
to the upper level, or in both locations. The basement smoke
alarm should be installed in close proximity to the stairway
leading to the floor above. Where installed on an open-joisted
ceiling, the alarm should be placed on the bottom of the joists.
The alarm should be positioned relative to the stairway to
intercept smoke coming from a fire in the basement before the
smoke enters the stairway.
P/N 1061280-ML • REV B • ISS 25JUN12
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(1)
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B
C
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(4) Bedroom
(5) TV Room
(6) Basement
Where to locate the required smoke alarms in new
construction
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All of the smoke alarms specified for existing construction are
required and, in addition, a smoke alarm is required in each
bedroom.
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Are more smoke alarms desirable?
The required number of smoke alarms might not provide
reliable early warning protection for those areas separated by a
door from the areas protected by the required smoke alarms.
For this reason, it is recommended that the householder
consider the use of additional smoke alarms for those areas for
increased protection. The additional areas include the
basement, bedrooms, dining room, furnace room, utility room,
and hallways not protected by the required smoke alarms. The
installation of smoke alarms in kitchens, attics (finished or
unfinished), or garages is not normally recommended, as these
locations occasionally experience conditions that can result in
improper operation.
Since regulations pertaining to smoke alarm/detector
installation vary from state to state, contact the authority having
jurisdiction (AHJ). Where public safety is primary, the AHJ may
be a federal, state, local, or other regional department or
individual such as a fire chief, fire marshal, chief of a fire
prevention bureau, labor or health department, building official,
electrical inspector, or others having statutory authority. For
insurance purposes, an insurance inspection department,
rating bureau, or other insurance company representative may
be the AHJ. In some cases, the property owner or their
designated agent assumes the role of the AHJ. At government
installations, the commanding officer or department official may
be the AHJ.
General guidelines
Before mounting units, program (learn) them into panel
memory and perform a sensor test from the unit's intended
location, to ensure good RF communication to the panel.
Locate units in environmentally controlled areas with
temperature and humidity as defined in "Specifications" on
page 7.
Locate units away from ventilation sources that can prevent
smoke from reaching the unit.
Locate ceiling-mounted smoke alarms in the center of a room
or hallway at least 4 in. (10 cm) from any walls or partitions.
Locate wall-mounted smoke alarms so the top of the alarm is 4
to 12 in. (10 to 31 cm) below the ceiling.
In rooms with sloped, peaked, or gabled ceilings, locate
detectors 3 ft. (0.9 m) down or away from the highest point of
the ceiling.
When mounting to suspended ceiling tile, the tile must be
secured with the appropriate fastener to prevent tile removal.
Note:
Do not mount the unit on the metal runners of
suspended ceiling grids. The metal runners can draw the
magnet's field away from the unit's reed switch, causing a false
tamper alarm.
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