LIFTMASTER model T LOGIC V3 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 315. The rail is style is Solid Channel.

The warranty on the T LOGIC V3 garage door opener is 2 years on the motor and 2 years on the remaining opener parts from LIFTMASTER.

The model T LOGIC V3 is still available.

LIFTMASTER model T LOGIC V3 commercial opener instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
liftmaster_t_l3_om.pdf

(3.85 MB in English) This requires Acrobat 10 or higher