Fitech like others only provides a ground output when the desired temp is reached. None of the systems provide any type of switching for turn on without relays or some type of controller.
i would much rather use relays to control the fans then have a direct wire to the fan. fans can fail an short out an im sure that would be bad for the fitech.......lol, fan relays is always the way to go.
and the powermaster 120 clears the eddie heads. havent had an issue yet.
