3900PLD Manual
Page 1
® DOOR OPERATOR Model 3900PLD 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! ■...
® DOOR OPERATOR Model 3900PLD 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! ■...