IK-E322-001GB
5
_____________________________________________________________________________
circuit
board
(PCB)
with
contact
pins
are
visible
from
the
bottom
side.
These
contact
pins
hold
a
connector
(11)
to
interconnect
several
detectors
in
a
network.
5
INSTALLATION
The
detectors
are
recommended
to
be
installed
in
all
rooms
exposed
to
a
high
fire
hazard
level.
They
may
be
mounted
in
hallways,
staircases
as
well
as
in
passages
between
rooms
endangered
by
a
fire
occurrence.
It
is
recommended
to
install
the
detector
on
ceilings,
leaving
at
least
20
cm
of
unobstructed
space
from
walls
or
other
elements
that
may
hamper
free
smoke
access
to
the
detector.
Two
holes
(with
72
‐
mm
spacing)
should
be
drilled
in
order
to
install
extension
anchor
bolts
fixing
the
detector
to
the
ceiling.
In
case
the
detectors
are
intended
to
work
in
a
network,
they
should
be
linked
–
all
detector
GND
clamps
must
be
interconnected;
the
same
concerns
the
I/O
clamps.
When
cables
are
led
under
the
wall
plaster
(semi
‐
flush
mounting),
the
base
should
be
drilled
in
its
centre;
in
case
of
on
‐
plaster
cable
leading
(surface
mounting),
the
hole
should
be
drilled
in
the
base
side
wall
(suggested
hole
locations
are
shown
on
Fig.
1)
leaving
the
minimum
distance
from
the
bottom.
The
cables
should
be
placed
into
the
holes
and
then
the
base
should
be
fixed
in
the
place
intended
for
installation.
The
detectors
may
be
interconnected
using
a
typical
telecommunication
PVC
insulated
cable
of
0.12
–
0.5
mm
2
cross
section
(0.4
–
0.9
mm
diameter).
Two
wires
may
be
connected
to
one
contact
(wire
and
resistor
endings).
It
is
allowed
to
use
different
size
wires
(within
0.4
–
0.9
mm
range)
in
one
contact.
The
minimum
length
of
the
wire
protruding
from
the
base
is
5
cm.
Bare
(un
‐
insulated)
ends
of
wires
(at
least
8
mm
long)
should
be
pushed
in
the
connector
taken
out
from
the
base
as
it
is
shown
on
Fig.
2.
The
clamps
of
the
connector
will
clench
the
wires
automatically.
Fig.
2
A
removal
of
a
wire
from
the
connector
is
possible
after
pressing
down
an
orange
blocking
push
‐
button
with
a
finger
nail.
The
connector
with
the
wires
should
be
pushed
on
the
contact
pins
protruding
from
the
detector.
The
battery
should
be
connected
and
inserted
so
that
the
red
blocking
plate
pulls
back
according
to
the
Figure
3.
The
detector
operation
should
be
checked
by
pressing
down
the
test
push
button
for
few
seconds.
The
test
result
is
positive
when
a
LED
flashes
several
times
and
subsequently
an
acoustic
signal
is
heard.
The
inspected
detector
can
be
installed
in
the
base
turning
it
clockwise
until
the
catches
snap.
