MRCOOL A-24-HP-WMAH-230D-O Advantage 5th Gen 24K BTU 230V Air Handler is an indoor HVAC unit designed to distribute conditioned air efficiently throughout a single-zone ductless system. It works by circulating air across the evaporator coil, where heat is absorbed or released, providing reliable cooling and heating when paired with a compatible outdoor heat pump. https://www.partshnc.com/advantage-5th-gen-24k-btu-230v-air-handler-a-24-hp-wmah-230d-o