rf1?

I too have a possibly faulty RF1 remote unit I can,t find it any where on the web. It appears that we were not given any handbooks when it was installed.from info I can find on the web it appears that this unit may have been obsolete when it was installed. It appears to have two sets of AA batteries in it in two seperate drawers and it is a DRAYTON WILTS RF1. Does anyone have any info where I can get a handbook?
thanks.