Chamberlain 7200 - Test the Protector System; Test the Safety Reverse System

Adjustment
Step
3
Test
the
Protector
Sysfem@
,vllARhll
Without
a
properly
working
safety
reversing
sensor,
persons
(particularly children)
could
he
seriously
iniured
or
killed
if trapped
by
a
closing
garage
door.
Repeat this
test
once
a
month.
.
Press
the
remote control
push
button
to
open
the
door.
.
Place the
opener
carton
in the
path
of
the
door.
.
Press the
remote
control
push
button
to
close
the
door.
The door
will not move
more
than
an
inch,
and
the opener
light(s)
willflash
for 5 seconds.
Professional
service
is required
if the
opener
closes
the
door
when
the
safety
reversing
sensor
is obstructed.
The
garage
door
opener
will not
close
from
a
remote
if the
indicator
light
in either
sensor
is
off
(alerting
you
to
the
fact
that
the sensor
is
misaligned
or obstructed).
The
garage
door
can be
closed
by
pressing
and
holding
the
Door
Control
push
bar
or button
until
down
travel
is completed.
Test
.
Place
a one-inch
board
(or
a 2x4laid
flat) on
the
floor,
centered
under
the
garage
door.
.
Operate
the
door
in the
down
direction'
The
door
must
reverse
on striking
the
obstruction.
Adjustment
lf the
door súops
on the
obstruction,
it is not
traveling
far enough
in the
down
direction.
.
lncrease
the
DOWN
limit
by turning
the
DOWN
linrit
adjustment
screw
counterclockwise
1/4 turn.
.
Repeat
the
test.
On a
sectional
door,
make
sure
limit
adjustments
do
not
force
the door
arm beyond
a
straight
up and
down
position'
See
the
illustration
on
Page
26.
.
When the
door
reverses
on the
one-inch
board
(or
a2x4laid
flat),
remove
the
obstruction
and
run
the
opener
through
3
or 4 complete
travel
cycles
to
test
adjustment.
lf
the
door
will
not
reverse
after
repeated
adjustment
attempts,
call
for
professional
garage
door
service.
Safety
Sensor
Safety
Reversing
Sensor
GARAGE
DOOR
One-lnch
Board
(ot
a
2x4 Laid
Flat)
lmportant
SafetY
Check:
Repeat
Adjustment
Steps
I
-
4 after:
.
Each adjustment
of door
arm
length,
force controls
or limit
controls.
.
Any
repair
to
or adjustment
of the
garage
door
(including springs
and
hardware).
.
Any repair
to
or buckling
of the
garage
floor'
.
Any
repair
to
or adjustment
of
the
opener'
Adjustment
SteP
4
Test the
Safety
ReYerse
SYsfem
Faiture
fo
fesf
and
adiust
the
safety
reverse
system
may
result
in
serious
iniury
or
death
to
persons
trapped
by a closing
garage door.
Repeat
this
test
once
a month
and
adjust
as
needed.
30
Nortek, Exhibit 1012