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…

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 th…

[IMG_20190629_121255353A] OK, so I measured the current that one of my Orbit valves draws that is closest to the controller so wire resistance would not reduce the current over the 20 foot distance of the wiring to that valve: it draws 0.186.3 amps as you can see in the attached photo. The US wiri…

Thanks for going to the trouble of your experiment. I have what I need now, except for the 2 miles of zone wires.

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Size zone wiring

Troubleshooting Wiring

BobL27 June 30, 2019, 2:55pm 5

You are welcome.