Abstract: An air conditioning system for a recreational vehicle is provided having a rooftop mounted air conditioning unit with an outlet for conditioned air and an inlet for return air and an air distribution system. The air distribution system includes ducts mounted between the roof and a ceiling of the recreational vehicle that are in communication with the outlet of the air conditioning unit. The air distribution system also includes registers mounted in openings of the ceiling to discharge the conditioned air from the ducts into various areas of the interior of the recreational vehicle. A ceiling grille is mounted at the ceiling below the air conditioning unit and has a return air grille and a closable register. The return air grille communicates the inlet of the air conditioning unit with the interior of the recreational vehicle.

Abstract: A roof mounted air conditioning unit for recreation vehicles comprising a cabinet made up of a base pan and a removable shroud. The base pan has a bottom wall and an upstanding perimeter wall with an outwardly protruding porch flange extending around the entire upper edge of the perimeter wall to provide stiffening reinforcement and a ledge on which the shroud seats. The ledge has air inlets and outlets therein providing air flow communication between ambient air and the condenser compartment. The perimeter wall also has air inlets and outlets therein. The shroud is generally imperforate and serves as a roof-like cover for the base pan. The shroud has a generally light color and the base pan has a generally dark color such that the air inlets and outlets in the pan perimeter wall are camouflaged from view. The cabinet is sub-divided by bulkheads into junction compartments including an evaporator coil compartment and the condenser coil compartment.