LIFTMASTER model APT 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 billion code on OTHER. The rail is style is Solid Channel.
The warranty on the APT garage door opener is 2 years on the motor and 2 years on the remaining opener parts from LIFTMASTER.
The model APT is still available.
LIFTMASTER model APT commercial opener instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
(0.45 MB in English) This requires Acrobat 10 or higher