4. Recommended Locations
WARNING: PLEASE READ CAREFULLY AND THOROUGHLY
• For rooms larger than 250 sq. ft. the notification device should
be located within 4.88 m (16’) of the pillow when located in a
sleeping area.
• Locate the first strobe or combination strobe alarm in the bedroom in
which the hearing impaired individual sleeps. Try to monitor the exit
path, as the bedrooms are usually farthest from the exit. Locate the
first alarm in the immediate area of the bedrooms. If more than one
sleeping area exists, locate additional alarms in each sleeping area
(Figure 1A).
• Locate additional strobe or combination strobe alarms in any lived-
in room where a hearing impaired individual would need to be
notified of an alarm condition and near any stairway as stairways
act like chimneys for smoke and heat.
• Locate at least one alarm on every floor level (Figure 1B).
• Locate an alarm in every Sleeping Room.
• Locate an alarm in every room where electrical appliances are
operated (i.e. portable heaters or humidifiers).
• Locate an alarm in every room where someone sleeps with the
door closed. The closed door may prevent an alarm not located in
that room from waking the sleeper.
• Smoke, heat, and combustion products rise to the ceiling and
spread horizontally. Mounting the smoke alarm on the ceiling in
the center of the room places it closest to all points in the room.
Ceiling mounting is preferred in ordinary residential construction.
• When mounting an alarm on the ceiling, locate it at a minimum of
10 cm (4”) from the side wall (Figure 2A).
• When mounting the alarm on the wall, use an inside wall with
the top edge of the alarm at a minimum of 10 cm (4”) and a
maximum of 30.5 cm (12”) below the ceiling (Figure 2A).
• Put smoke alarms at both ends of a bedroom hallway or large
room if the hallway or room is more than 9.1 m (30’) long.
• For mobile home installation, select locations carefully to avoid
thermal barriers that may form at the ceiling. For more details, see
Mobile Homes.
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