Appendix B: Transmitter Installation
CommPact Installation Manual
122
11.
Mount
the
back
cover
to
the
wall
using
two
screws
and
replace
the
PCB.
Use
#
6
x
3/4
ʺ
countersunk
wood
screws
(ISO
7050
‐
ST3.5
x
22)
or
similar
countersunk
screws
so
that
the
screw
head
will
not
touch
the
PCB
–
see
Figure
B
‐
15.
12.
Thread
the
detector’s
cable
through
the
wiring
hole.
13.
Connect
the
detector’s
cable
to
the
terminal
block
as
shown
in
Figure
B
‐
38.
14.
Replace
the
PCB
inside
the
back
cover
making
sure
that
it
clicks
into
place.
15.
Before
permanently
mounting
the
detector,
place
a
wet
rag
over
the
terminals
(located
on
the
bottom
of
the
detector).
The
EL
‐
2661
transmits
an
alarm
30
seconds
after
detecting
the
presence
of
water.
This
30
‐
second
delay
verifies
that
the
alarm
is
caused
by
a
significant
amount
of
water
and
is
designed
to
prevent
false
alarms
caused
by
humidity
or
condensation.
Similarly,
the
EL
‐
2661
sends
a
restore
signal
30
seconds
after
the
detector’s
terminals
are
dry.
When
the
tamper
switch
is
open,
the
30
‐
second
delay
is
canceled
in
order
to
speed
up
the
test
procedure.
Make
certain
that
the
LED
is
lit
during
transmissions.
The
LED
indicator
does
not
function
when
the
tamper
switch
is
closed.
16.
Fix
the
detector
to
the
floor
using
the
two
screws,
spacers
and
wall
anchors
provided.
Alternatively,
you
can
fix
the
detector
to
the
floor
using
the
double
‐
sided
adhesive
tape
provided
–
see
the
following
section.
17.
Close
the
front
cover
of
the
transmitter.
Detector Installation with Double-sided Adhesive Tape
If
using
double
‐
sided
adhesive
tape
to
install
the
detector,
perform
the
following
procedure
for
best
results:
1.
Clean
all
surfaces
using
a
low
strength
solvent
such
as
isopropyl
alcohol
to
ensure
that
the
surfaces
are
clean,
dry
and
grease
‐
free.
2.
Peel
away
the
backing
from
the
pieces
of
adhesive
tape
and
attach
them
to
the
underside
of
the
detector.
Do
not
touch
the
adhesive
with
your
fingers.
3.
Peel
away
the
backing
from
the
other
side
of
the
adhesive
tape.
4.
Fix
the
detector
to
the
floor
by
firmly
applying
pressure
for
a
few
seconds.
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