That seems likely normally not viable in most warm places because the humidity would quickly rot out the floors. Part of the ‘conditioning’ in the name is that quite a lot of water will ideally get removed from the air to control humidity too, and that needs to be drained away
Maybe it works in Switzerland due to high altitude reducing humidity?
I have a gas fired hydronic heating system but I still need AC for cooling(mixture of traditional and mini-split style units due to retrofitting requirements).
I'm also located in a high altitude location but for AC alternatives here we would typically see something like a swamp cooler.
The brine is at a temperature where there is no condensation. The ground temp is 11c but the brine is higher than that. Also there is an air circulation system that passes over the cooling fins to remove moisture, but it's nothing like using a dehumidifier, because I have a dehumidifier in my cellar and it takes out plenty of water.
Plus no one has wooden floors. We have cement/epoxy floors. Some neighbors have a wood laminate that's probably mostly epoxy. I don't think you can even get wood floors anymore here. Walls are cement/plaster. Ceilings too.i guess the doors are wood.