Owner’s Manual
Please read this manual and the enclosed safety materials carefully! ■
Fasten the manual near the garage door after installation. ■
The door WILL NOT CLOSE unless the Protector System ■
®
is connected and
properly aligned.
Periodic checks of the opener are required to ensure safe operation. ■
The model number label is located on the front panel of your opener. ■
DO NOT exceed 8 complete cycles of door operation per hour. ■
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
COMMERCIAL DOOR OPENER
Model ATS 2113X 1/2 HP
For Residential And Light Duty Commercial Use
Install on Sectional Doors Only
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