like parts or elements fig1 shows a side view of a direct exchange system having a primary vapor hot gas refrigerant transport line 1 situated between a compressor 2 and the earth 39 s surface 3 the primary transport line 1 is operatively connected to an exterior air source heat exchange supplement or high level heat dissipater hlhd 4 which includes finned refrigerant transport tubing 5 exposed to the exterior air outside of the interior space after exiting the hlhd 4 the refrigerant the flow direction of which is indicated by arrows 6 travels into the sub surface entry point 7 to the sub surface geothermal heat exchanger not shown herein as sub surface geothermal heat exchangers come in a variety of designs that are well understood by those skilled in the art an optional electric fan 8 with a power cord 11 for connection to an electrical power source not shown is shown positioned under the hlhd 4 for optional use in the event of high extreme or over design system operational temperatures and pressures as well as for optional use to decrease the heat absorption load otherwise placed upon the sub surface geothermal heat exchanger a temperature or pressure controlled switch 9 or the like is attached to the primary vapor hot gas refrigerant transport line 1.