You want to connect a onesto digital programmable timer switch on the wires from the distribution board to the geyser with three ports bottom side what wires go where?

To connect the Onesto digital programmable timer switch to the geyser, first identify the three terminals on the bottom side of the timer: typically, these will be labeled as L (live), N (neutral), and LOAD. Connect the live wire from the distribution board to the L terminal, the neutral wire to the N terminal, and the wire leading to the geyser to the LOAD terminal. Ensure all connections are secure and double-check the wiring against the manufacturer's instructions to ensure safety and proper function.