Owner's Manual

SAFETY
24
ALARM
LIMITATIONS
LIMITATIONS OF SMOKE ALARMS
Alarms reduce deaths resulting from home fires
worldwide. However smoke alarms can only
work
if
they
are properly located, installed and
maintained, and
if
smoke reaches
the
alarms.
• Smoke
alarms may not waken all individuals.
Make sure you create
an
escape plan and
you practice fire drills
with
all members
of
the
family.
• Smoke
alarms cannot work
without
power.
If
they
are powered by batteries,
the
smoke
alarms cannot work
if
the
batteries are
missing, dead or disconnected.
If
they
are
wired,
the
smoke alarms cannot work during
a long power outage and once the backup
battery
is dead. Nest Protect
will
warn you
in
advance when batteries are running low
so
that
you can replace them.
• Smoke
will
not
be
able
to
reach smoke sensor
while
the
dust
cover is
in
place. The
dust
cover
must
be
removed.
• Smoke
alarms cannot
detect
fires
if
the
smoke
does not reach the alarms. For example,
if
a
door is closed, smoke may
not
reach the smoke
alarm. This is why you should have a smoke
alarm
in
each bedroom and
in
the hallways
as
bedroom doors may be closed
at
night.
• Smoke alarms may not
be
heard. Although
the smoke alarm comes
with
a loud horn
of
85 decibels,
it
may not be heard
if:
1)
people
have consumed alcohol or drugs,
2)
the
alarm is drowned by noise
from
stereo,
TV,
traffic,
air conditioner or
other
appliances,
3)
residents are hearing impaired or have high
frequency hearing loss associated
with
aging.
Special smoke alarms should
be
installed
for
those who are hearing impaired.