The MRCOOL DIY-MULTI4-27HP230D-O DIY 5th Gen 27K BTU Mini-Split Heat Pump Condenser is a high-efficiency outdoor unit designed to provide heating and cooling for multi-zone ductless HVAC systems. It works by transferring heat between the indoor and outdoor environments using advanced heat pump technology, delivering reliable year-round comfort when paired with compatible MRCOOL DIY in... https://www.partshnc.com/mrcool-diy-5th-gen-multi-zone-hvac-condenser-diy-multi4-27hp230d-o