5
On-Off control
Electric shock!
WArnIng!
The red limit switch lead is not in-
sulated and carries voltage when
the valve is in the open position!
Î Fuse the operating voltage
with external pre-fuse max.
2A!
Ader
Black
control line
if the auxiliary phase L (230 V~) is energi-
sed, the path AB<>B opens. If there is no
control signal, the valve is put back to the
initial position AB <> A
Brown
permanent live L (230 V~)
Blue
neutral line -N (230V~)
Red
limit switch output signal
black
control cont.
blue
brown
red
14
6
Examples
Solar system with 1 collector and 1 store with 3-port
valve for store loading in layers.
Solar system with 2 collectors and two stores with
3-port valve for store loading in layers.