Light switch has no function for these models. Remove?

[killtux]

I am running some "SAC_GLOBAL_MINI4WAY" and a "SAC_RAC", but the light switch looks like it has no function (even if the SAC_RAC has a display). Nothing happens when pushing it so i think the light switch function is not supported for these models and it can get removed for them.

I also have a MIM-H04EN Wifi Kit to connect the A/C's above. There's a switch labeld "switch". Whats should be the purpose of it? I think it has also no effect on the devices but i am not sure.