MRCOOL O-ES-18-HP-C-230C-O1 Olympus Mini-Split Heat Pump Condenser is an outdoor HVAC unit designed to provide efficient heating and cooling for compatible ductless mini-split systems. It works by compressing and circulating refrigerant between the outdoor condenser and indoor air handler, enabling efficient heat transfer for dependable year-round climate control. https://www.partshnc.com/mrcool-olympus-4th-gen-single-zone-condenser-o-es-18-hp-c-230c-o1