LIFTMASTER model ATSW commercial opener is a 1/2hp chain drive. It is part of the commercial opener. This garage door opener has an ac motor on 110vac. A battery backup is not available. The remotes are rolling code on MyQ. The rail is style is Solid I.
The warranty on the ATSW garage door opener is 1 year on the motor and 1 year on the remaining opener parts from LIFTMASTER.
The model ATSW is still available.
LIFTMASTER model ATSW commercial opener brochure in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
liftmaster_atsw_brochure_23.pdf
(1.67 MB in English) This requires Acrobat 10 or higher