LIFTMASTER model GT MECHANICAL 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 GT MECHANICAL garage door opener is 2 years on the motor and 2 years on the remaining opener parts from LIFTMASTER.
The model GT MECHANICAL is still available.
LIFTMASTER model GT MECHANICAL commercial opener instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
liftmaster_gt_mech_om.pdf
(2.00 MB in English) This requires Acrobat 10 or higher