Hi can someone tell me what settings I should choose and/or have to make to have ATO operate with three sensors.
Sensor one as a low level sensor to turn ATO on , sensor two as a safety high level sensor to turn ATO off should a high level be reached and sensor three as a low level pump protection should the ro top up container run low on water.

I have tried to find details both in the manual and the programming guides but I can't find use of three in this way,and I am sorry but I don't understand what to do. So if someone could please post it up as a list, ie level one , choose ATO with two sensors, or choose max/min control, socket X set this as Water 1 or what ever it has to be.

Thanks