1. Power Supply In: This is the power coming in from the transformer. Right or left connection order does not matter.
2. Power Supply Out: This is used to power additional screens. You can only daisy chain if the total number of valves on being powered is 4 or less.
3. Fluid Control Valve: Each valve will be a pair of blue and brown wires. Valves are numbered from right to left just like flowmeters (diagram shows connection in valve 1 used). The wires can go in any order, as long as you keep a consistent pattern all the way through for every valve.