
4
SECTIONAL DOOR INSTALLATION
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.
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.
Horizontal and vertical
reinforcement is needed for
lightweight garage doors
(fi berglass, steel, aluminum,
door with glass panels, etc.).
See page 19 for details.
Header Wall
Wall-Mounted
Door Control
Safety
Reversing
Sensor
Torsion
Spring
OR
Vertical
Centerline of
Garage Door
Extension Spring
Access
Door
Rail
Garage
Door
Spring
Straight
Door
Arm
Curved
Door
Arm
Door
Bracket
Header
Wall
Garage
Door
Chain
Header
Bracket
Chain
Pulley
Bracket
Emergency
Release Rope
& Handle
CLOSED POSITION
Safety
Reversing
Sensor
Gap between fl oor and bottom of
door must not exceed 1/4" (6 mm).
Slack in chain tension is
normal when garage door
is closed.
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 11.
Trolley
Summary of Contents for ATS
Page 35: ...35 NOTES ...
Page 71: ...35 REMARQUES ...