3900PLD Manual
Page 1
... For Light Duty Commercial Use Install On Sectional Doors With Torsion Assemblies Only The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com patible with Com Details Owner's Manual See Page 13 for ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the... model number label is located behind the hinged door of your operator. ■ Do NOT exceed 10 complete cycles of door operation per hour. 2 YEAR WARRANTY Serial # Installation Date
... For Light Duty Commercial Use Install On Sectional Doors With Torsion Assemblies Only The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com patible with Com Details Owner's Manual See Page 13 for ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the... model number label is located behind the hinged door of your operator. ■ Do NOT exceed 10 complete cycles of door operation per hour. 2 YEAR WARRANTY Serial # Installation Date