RainMachine Pro-8/16 devices are equipped with "push-in" head terminal blocks to connect the power, master valve and zones wires (size AWG 14-22).
To connect the wires you'll need a small screwdriver or a similar tool.
- Push down the connector head with the screwdriver tip or a similar tool.
- Insert the wire into the hole cavity underneath.
- Release the connector head.
- Check that the wire is secure.