Otis Aut-O-Safe

Can anyone share some info on this hydro emergency rescue unit? I am not too familiar with them and I was hoping to get some testing info and basic troubleshooting tips/prints. I have a couple that don't seem to be working. I appreciate it. Thank you.

Found the prints and documentation. The main line aux contacts were not wired up. Fixed the wiring, replaced the batteries and it works as it should.