Bought this particular model a month or so ago. I had the same model but in a different color however, I had to install it upside down to make it work. I'm not sure why but that was the way it was set up, I guess, to operate the opposite direction as to my door. Anyway, I love the convenience of these looks. No more messing with keys or worrying about loosing them. All you have to do is remember your code, which is easy to set. The first lock will be installed on my back door when I get it done, it works the opposite direction to the front door. I don't think there is any particular direction associated with these locks but the first one seemed to have a specific direction and will work for this door.