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Chamberlain LiftMaster Security+ 311 User Manual

Chamberlain LiftMaster Security+ 311
80 pages
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GARAGE DOOR OPENER
Model 311
For Residential Use Only
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.
®

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Chamberlain LiftMaster Security+ 311 Specifications

General IconGeneral
TypeGarage Door Opener
Horsepower1/2 HP
CompatibilityCompatible with most garage doors
Frequency315 MHz
Battery BackupNo
Max Door Height7 ft
Security FeaturesSecurity+ Rolling Code Technology
Security TechnologySecurity+
Maximum Door Height7 ft

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