In the General Configuration section of the Circuits/Manifold page, there is the possibility to connect to the circuit at issue (C1 in the example below):
A main/father circuit
One or more interlocked circuits
PHOTO TBD
The main circuit is a circuit which is activated together with the secondary circuit (or secondary circuits) it is associated with if there are two circulators in series to provide circulation.
The interlocked circuits, on the other hand, stop, so if on Page C1 we interblock C2, when C1 starts C2 stops. C2 can restart, if there is demand, when C1 stops.