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LIFTMASTER model GSD LOGIC V4 commercial opener is a 1/3hp sliding 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 GSD LOGIC V4 garage door opener is 2 years on the motor and 2 years on the remaining opener parts from LIFTMASTER.

The model GSD LOGIC V4 is still available.

LIFTMASTER model GSD LOGIC V4 commercial opener instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
liftmaster_gsd_l4_om.pdf

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