Location of heating actuators

[Jeecha]

What would be the best practice for heating actuator location for hot water under floor heating system:
A) in the central electrical distribution box, with wires for each electrothermal drive going to heating distributor;
B) in the heating distributor box, next to the electrothermal drives, with just power and KNX coming from central electrical distribution box.

Also, MDT heating actuator data sheet says that up to 4 valve drives can be connected to each channel. Is this a good practice to connect valves for multiple heating circuits of same room in parallel on same channel?

There will be two heating distributors, one for each floor, with 13 valves (7 rooms/zones) and 12 (8 rooms/zones) valves respectively. Currently it looks like MDT heating actuators will be used, which also allow automation of circuit pump via logic.

[Sebastian Zimmermann]

Hi Jeecha,

It depends since both installations would work but if you have the space then I'd install everything in the central electrical distribution box where all your KNX actuators are. And yes, for larger rooms you can connect multiple heating circuits together.