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The Chamberlain Group, Inc.
A DUCHOSSOIS ENTERPRISE
845 Larch Avenue, Elmhurst, Illinois 60126
OWNER'S MANUAL
MODEL ATS 211
COMMERCIAL DOOR OPENER
For Residential and Light Duty Commercial Use
Install on Sectional Doors Only
Please read this manual and the enclosed safety materials carefully!
Fasten the manual near the garage door after installation.
Periodic checks and adjustment of the opener are required to ensure safe operation.
The model number label is located on the operator cover.
As of date of
manufacture, meets
all ANSI/UL 325
Safety Standards
and requirements
for residential and
commercial applications.
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Includes Lift-Master
"Protector System"