Overview for Mitsubishi PAC-AKA31BCThe Mr. Slim series from Mitsubishi Electric heating and cooling systems are a convenient, single or multi room solution for homes or offices that formerly relied on electric baseboard heaters in the winter and window air conditioning units in the summer. The Mitsubishi PAC-AKA31BC Port adapter allows the MXZ8B48NA Mitsubishi outdoor condenser for up to 3 connectable indoor units. For the past 30 years, Mitsubishi Electric Cooling & Heating (Mitsubishi Electric), a division of Mitsubishi Electric & Electronics USA, Inc., has enhanced people's lives by improving comfort, conserving energy, and promoting environmental sustainability. Mitsubishi Electric is a leading marketer of variable refrigerant flow (VRF) zoning and split-zoning air-conditioning systems for both commercial and residential installations. VRF systems, which are highly efficient and can dramatically cut energy costs, are one of the fastest growing segments of the American air-conditioning and heating market. Ductless heating and cooling systems have been around for over 30 years and are used widely throughout the world.