We are currently looking to update the controls in our buildings to bring everything into one system. What I would like to do is move away from separate cooling tower controllers and have the chemistry controlled straight from the BAS. I think the only real challenge is the scaling of the inputs. Has anyone done this yet?
I've seen controllers that will tie into your system but from what I've read it looks like these are just re-transmitted signals and the the tower controller is still doing the thinking. Any thoughts?