Besides the power input plug (which is not a terminal by itself), Rahio features two terminals labeled 24VAC + and -.
These are designed to power sensors, such as wireless rain sensor or flow sensor and are not designed to be used for power input to run the controller itself & a number of valves.
If you want to see what happens if you use the termianals to connect the 24VAC supply instead of the power input plug, here (link) is an example.
