The MRCOOL MCAEAMPEF42C21AA Signature Series 42K BTU Multi-Position Split System Air Handler is an indoor HVAC unit designed for compatible MRCOOL split-system heating and cooling applications. It works with an outdoor condenser or heat pump by circulating refrigerant through the indoor coil, while the blower distributes conditioned air through the ductwork. Its multi-position design ... https://www.partshnc.com/mrcool-signature-series-multi-position-air-handler-mcaeampef42c21aa