Elevator Forum ForumsWhat’s NewRecent PostsMembers Forums General Discussion Technical Questions otis italia Notifications Clear all otis italia Technical Questions Last Post by Anonymous 1 week ago 2 Posts 1 Users 0 Reactions 2,231 Views RSS denzelevator79 (@denzelevator79) Joined: 1 second ago Posts: 0 Topic starter 20/08/2014 11:30 am [#11853] could anyone tell me whats the timer (ARR)used for on a Otis italia hydraulic controller. Quote ThyssenKrapp (@ThyssenKrapp) Joined: 1 second ago Posts: 0 20/08/2014 4:10 pm Advance registration relay, Or Automatic return relay ? ReplyQuote Share: