Hi, I'm new here and tried searching on this question but didn't find any answers to my specific question yet... I'm just waiting on my Rachio enclosure to arrive (hopefully before this weekend) before I can install my Iro, so maybe the answer will become obvious when I remove the existing controller.
Looking at my existing controller, it has a common wire, a set of 4 red wires for the 4 different zones, a short wire acting as a jumper between the two sensor terminals, and two wires connected to terminals marked "24V." That's all there is, so this looks like a very simple, straight-forward install.
Reading the installation instructions, I see that the Iro doesn't need the 24V inputs. Reading the detailed installation instructions on the Rachio website, I also see it doesn't need the 24V wires, but I haven't seen anything that says what to do with the existing wires? Do I cap them off? When I take apart the existing controller box, will I find that they just go away when converting to the Rachio?