I’m replacing a 13-14 year old RainBird controller with a Gen2 unit, I thought I had everything set up but have a problem. None of the circuits are spraying, I think it is because I left one wire disconnected. On the RainBird unit the wire (white in the picture) was connected to a terminal marked “VT = Valve Test”, each of the 10 valves had a single solid-core wire and I transferred them exactly.
So it would seem that the white wire for valve test is needed, my question is where; common or master valve? I’m thinking common but which of the four “C” connectors should I use?