Note, these split type AC units are not similar to other units that have compression cooling power. Heat transfer is achieved by circulating a working fluid between two heat exchangers operating at different latent absorbtion/rejection heat phases and therefore would need a minimum of 2K differential in boundry areas for heat exchange to occur.

Cassette indoor split air conditioner heat transfer rates 36,000 Btu’s / 60,000 Btu’s for commercial cooling applications. Coefficient of Performance base on 60,000 Btu’s (COP) 50:1