Planning - LiftMaster ATS2113X 1/2 HP Manuel D'installation

Planning

Identify the type and height of your door. Survey your 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 operator.
SECTIONAL DOOR INSTALLATION
Horizontal and vertical
reinforcement is needed for
lightweight doors (fi berglass,
steel, aluminum, door with glass
panels, etc.). See page 19 for
details.
Safery
Reversing
Sensor
Header Wall
Vertical
Centerline
of 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 door.
• The gap between the bottom of the 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 door MUST be repaired to eliminate
the gap.
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 11.
Slack in chain tension
is normal when door is
closed.
Extension Spring
OR
Torsion
Access
Spring
Door
Safery
Reversing
Sensor
Header
Bracket
Header
Wall
Door
4
Wall-Mounted
Door Control
CLOSED POSITION
Chain
Pulley
Bracket
Chain Trolley
Door
Emergency
Spring
Release Rope
Straight
& Handle
Door
Arm
Curved
Door
Door
Bracket
Arm
Rail