SOMMER model SYNORIS 550 residential opener is a 3/4hps chain drive. It is part of the premium series. This garage door opener has an dc 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 garage door opener is Lifetime on the motor and lifetime on the remaining opener parts from SOMMER.
The model SYNORIS 550 is still available.
SOMMER model SYNORIS 550 residential opener owners manual and instructions in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
sommer_synoris_550_om.pdf
(7.13 MB in English) This requires Acrobat 10 or higher