Abstract: A portable heating and cooling unit intended to be used within a room or area of a building includes a cabinet supported on a plurality of wheels and a refrigeration circuit at least partially carried within said cabinet. The refrigeration circuit includes a first coil, a compressor, a second coil and a refrigerant reversing valve. In a cooling mode of operation, the first coil acts as an evaporator coil and room air is circulated by a first fan across the evaporator coil and delivered into the room. A second fan circulates room air through the second coil acting as a condenser coil and discharges the thus warmed air away from the room area to be cooled. In a heating mode of operation, the refrigerant reversing valve is activated to change the flow direction of the refrigerant through the circuit such that the first coil now acts as a condenser and The second coil now acts as the evaporator.

Abstract: A portable heating and cooling unit intended to be used within a room or area of a building includes a cabinet supported on a plurality of wheels and a refrigeration circuit at least partially carried within said cabinet. The refrigeration circuit includes a first coil, a compressor, a second coil and a refrigerant reversing valve. In a cooling mode of operation, the first coil acts as an evaporator coil and room air is circulated by a first fan across the evaporator coil and delivered into the room. A second fan circulates room air through the second coil acting as a condenser coil and discharges the thus warmed air away from the room area to be cooled. In a heating mode of operation, the refrigerant reversing valve is activated to change the flow direction of the refrigerant through the circuit such that the first coil now acts as a condenser and the second coil now acts as the evaporator.