GUARDIAN model 628 residential opener is a 3/4hps belt drive. It is part of the pro series. This garage door opener has an dc motor on 110vac. A battery backup is not available. The remotes are billion code on 303. The rail is style is Solid T.
The warranty on the garage door opener is 5 years on the motor and 1 year on the remaining opener parts from GUARDIAN.
The model 628 is still available.
GUARDIAN model 628 residential opener owners manual and instructions in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
(5.61 MB in English) This requires Acrobat 10 or higher