Planning - Chamberlain 3595S 3/4 HP Owner's Manual

Planning

Identify the type and height of your garage door. Survey
your garage area to see if any of the conditions below
apply to your installation. Additional materials may be
required. You may fi nd it helpful to refer back to this page
and the accompanying illustrations as you proceed with
the installation of your opener.
SECTIONAL DOOR INSTALLATION
Horizontal and vertical
reinforcement is needed for
lightweight garage doors
(fi berglass, steel, aluminum,
Header
door with glass panels, etc.).
Wall
See page 19 for details.
Safety
Reversing
Sensor
Torsion
Spring
Vertical
Centerline of
Garage Door
Gap between fl oor and
bottom of door must not
exceed 1/4" (6 mm).
Without a properly working safety reversal system,
persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage
door.
• The gap between the bottom of the garage door and
the fl oor MUST NOT exceed 1/4" (6 mm). Otherwise,
the safety reversal system may NOT work properly.
• The fl oor or the garage door MUST be repaired to
eliminate the gap.
FINISHED CEILING
Support bracket &
fastening hardware
Slack in chain is required.
See page 11.
tension is normal
when garage door
is closed.
Extension
Spring
OR
Safety
Reversing
Sensor
4
Motor Unit
Wall-
Mounted
Door
Control
Access
Door