I need to run zone wires about 800’. Most commercial controllers will require 16ga zone wires for that distance, but that depends on the transformer output in the controller. What is the transformer output voltage in the Rachio G3 and does it’s distance capability compare with other controllers like the RB controllers?
Personally, I think you’d be better off running a heavier guage wire if the valve coils pull enough current to cause a voltage drop at the far end of the cabling. I don’t think I’d want to increase the voltage to the controller, which would in my opinion could damage the controller. I’m not sure that the coils would draw enough current ( I never had reason to measure what my Orbit valves draw, but I might measure it) to cause a voltage drop enough to not operate the valve. Now you got me curious. 800 feet is a long distance and the resistance of 16g wire might be a problem, but I don’t think so.
Thanks for going to the trouble of your experiment. I have what I need now, except for the 2 miles of zone wires.
You are welcome.