The HAH018FPA is a 1.5-ton, 18,000 BTU PSC air handler designed for use in central ducted HVAC systems. As an indoor unit, it works by circulating conditioned air from a compatible heat pump or air conditioning condenser through the ductwork to provide consistent indoor comfort. Its durable construction, efficient airflow performance, and flexible installation options make it suitable... https://www.partshnc.com/mrcool-prodirect-series-psc-air-handler-hah018fpa