•
L
ocate an alarm in every room where electrical appliances are
operated
(
i.e. portable heaters or humidifiers
)
.
•
L
ocate 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.
•
S
moke, 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 construc-
tion.
• For mobile home installation, select locations careful ly to avoid
thermal barriers that may form at the ceiling. For more details,
see M OBI
L
E HOME IN
S
TA
LL
ATION below.
• When mounting an alarm on the ceiling, locate it at a minimum
of 4”
(
10cm
)
from the side wall
(
see figure 1
)
.
• When mounting the alarm on the wall, use an inside wal l with
the top edge of the alarm at a minimum of 4”
(
10cm
)
and a
maximum of 12”
(
30.5cm
)
below the ceiling
(
see figure 1
)
.
FIGURE 2 FIGURE 3
FIGURE 1
• Put smoke alarms at both ends of a bedroom hallway or large
room if the hallway or room is more than 30 ft
(
9.1 m
)
long.
• Install
S
moke Alarms on sloped, peaked or cathedral ceilings at
or within 3ft
(
0.9m
)
of the highest point
(
measured horizontally
)
.
NFPA 72 states: “
S
moke alarms in rooms with ceil ing slopes
greater than 1 ft in 8 ft
(
.3m in 2.4m
)
horizontally shall be locat-
ed on the high side of the room.” NFPA 72 states: “A row of
alarms shall be spaced and located within 3 ft
(
0.9m
)
of the
peak of the ceiling measured horizontally”
(
see figure 3
)
.
MOBILE HOME INSTALLATION
Modern mobile homes have been designed and built to be energy
efficient. Install smoke alarms as recommended above
(
refer to
R
ECOMMENDED
L
OCATION
S
and Figures 1 and 2
)
.
In older mobile homes that are not well insulated compared to
present standards, extreme heat or cold can be transferred from
the outside to the inside through poorly insulated walls and roof.
This may create a thermal barrier which can prevent the smoke
from reaching an alarm mounted on the ceiling. In such units,
install the smoke alarm on an inside wall with the top edge of the
alarm at a minimum of 4”
(
10cm
)
and a maximum of 12”
(
30.5cm
)
below the ceiling
(
see figure 1
)
.
If you are not sure about the insulation in your mobile home, or if
you notice that the outer walls and ceiling are either hot or cold,
install the alarm on an inside wall. For minimum protection, install
at least one alarm close to the bedrooms. For additional protec-
tion, see
S
ING
L
E F
L
OO
R
P
L
AN in figure 2.
WARNING: TEST YOUR SMOKE ALARM OPERATION AFTER RV
OR MOBILE HOME VEHICLE HAS BEEN IN STORAGE, BEFORE
EACH TRIP AND AT LEAST ONCE A WEEK DURING USE.
2. LOCATIONS TO AVOID
• In the garage. Products of combustion are present when you
start your automobile.
•
L
ess than 4”
(
10cm
)
from the peak of an “ A” frame type ceil-
ing.
• In an area where the temperature may fall below 40ºF or rise
above 100ºF, such as garages and unfinished attic s.
• In dusty areas. Dust particles may cause nuisance alarm or fail-
ure to alarm.
To Next Page
Loading...
