Indoor unit for electric heat pump

Claim 1

An indoor unit of an electric heat pump, comprising: first and second independent modules adapted to be connected in air flow communication in several different ways; said first module being of right parallelopiped exterior form having a top face, bottom face, one and an opposite longitudinal faces, and one and an opposite lateral faces, and containing therein a refrigerant coil comprised of horizontally extending tubes and fins thereon disposed with their planes in a substantially vertical orientation, said coil extending longitudinally of said module and having its lower longitudinal edge adjacent one lower longitudinal corner of said first module, said coil being tilted inwardly to a degree that its upper longitudinal edge is adjacent the midpoint of the lateral dimension of said first module, said first module further containing a refrigerant compressor in the space adjacent the inner face of said coil; a second module of right parallelopiped exterior shape having an inlet face and an outlet face, and a lateral dimension substantially the same as the lateral dimension of said first module, the interior space of said second module being substantially split laterally into a first space and a second space, said first space containing a single width, single inlet blower having its inlet open to said second space and its outlet open at said outlet face; said second module being adapted to be mounted upon said first module in one position in which said blower is above said coil and air flow through said modules is in a sequence through said one longitudinal face of said first module, said coil and past said compressor to said blower inlet and, alternatively, mounted in another position 180° from said one position and in which said blower overlies said compressor and air flow through said module is in sequence through either of said lateral faces or said bottom face or said opposite longitudinal face, past said compressor, and through said coil to said blower inlet.