We had the same problem- bought a 6Kw split model that was heating only. But found that Daikin supply a conversion kit (about £150 I think) to add a condensate tray and different pressure sensor, then you need to cut a link on the board to enable cooling. I fitted it a month ago and it work’s really well with a fan coil. Couldn’t find a uk supplier though so bought it from a French company. Can dig out the details if you’re interested