I use a modified version of the one suggested in the users manual (official or unofficial I'm not sure) and its been running flawlessly for nearly a year ever since I removed the old Tunze system.
Switch 4 and 1 are two water level sensors in my sump at close to the same height and switch 3 is a water on the floor sensor. With the OSC function my ATO comes on every 30 minutes for 1 minute and 10 seconds unless the water level sensors or water on the floor sensor are triggered. Because I also use a kalkwasser reactor I have it setup so that the ATO doesn't run if the reactor's mixing pump is running or if the pH jumps up too high.
OSC 000:00/001:10/030:00 Then ON
If Switch4 OPEN Then OFF
If Switch1 OPEN Then OFF
If Switch3 CLOSED Then OFF
If Outlet Kalkwasser = ON Then OFF
If pH > 08.40 Then OFF
I'd really think twice before connecting an RO/DI system so that it runs directly into the tank. Not only does it significantly increase the risk of a crash which I can see you're obviously worried about. But its also very hard on the membrane to be turning on and off in short bursts all of the time.
I've got my RO/DI system setup on a solenoid to fill a reservoir beside the tank for two and a half hours on Mondays and Thursdays with this.
Set OFF
If Time 15:30 to 18:00 Then ON
If DoW S-TW-FS Then OFF
|