Hello,
I have a constellation with an analog sensor board and zone expander and the LAN connection is not connected. After a delayed commissioning of the Zone Expander, nothing related to the new valve group (3 valves) no longer works properly. However, I also lack any information about the zone expander. I couldn't find anything in the download area either. Can someone give me the information where I can find it?
Can you see any wiring errors in the picture?

The red wires are outputs 1-8 on the Ospi and 1 on the Zone Expander
Channel 17 works if 18 and 19 are not connected to the valves.