I have 5 irrigation zones but I inadvertently bought an Orbit controller that includes only 4 zones. Can I plug 2 zones wires into one port on the controller, and thereby control 2 zones as one? Thanks.
I would guess that you can. I believe the timer will simply turn off or give an error on the screen if there is too much electrical draw from the two solenoids. If that happens then you know that at least those two solenoids can’t share a terminal.