LIFTMASTER model 3900, jackshaft light duty commercial opener is a 3/4hps jackshaft drive. It is part of the commercial opener. This garage door opener has an dc motor on 110vac. A battery backup is optional. The remotes are dip switch on 315. The rail is style is None.
The warranty on the 3900, jackshaft light duty garage door opener is 2 years on the motor and 2 years on the remaining opener parts from LIFTMASTER.
The model 3900, jackshaft light duty is discontinued.
LIFTMASTER model 3900, jackshaft light duty commercial opener brochure in PDF format at NO CHARGE!
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