With a Ductless split system, the evaporator fan coil end up being inside the cellar but it will be connected to the compressor via two copper lines.
The evaporator and condenser are already a part of one unit which sits in the wall and vents of your cellar on the adjacent enough space. https://objectstorage.ap-singapore-1.oraclecloud.com/p/_MmB6DHQz1YWcwYtOnOxDgq2kwHIBjQpB2WteGoaGqnKPVLJ-coF9RPQQiG0Wwul/n/axqjqojndoew/b/Ruou-tay/o/Pha-che-doc-dao-voi-Jagermeister:-Tao-ra-nhung-trai-nghiem-thu-vi..docx.html