Split vs all in one

[hammerone]

What is the difference between split systems and all in one systems.
Thanks

[watercop]

"All-in-one" systems are more commonly called "package" systems.

Splits have separate cabinets for compressor and air handler, connected by refrigerant lines.

Package units combine everything in one box. There is a slight gain in efficiency but both air and water have to be supplied and returned to the package unit's location

[herohero]

Just do the Google search for you to imagine easier: