Abstract: A reversible system for recovery of heat energy by sampling and transfer of calories from one or more media into one or more other media of any type. The innovation is a new principle of refrigeration operation that makes it possible—with a nonreversible plate exchanger, a reversible plate exchanger, and a finned battery on an outside air circuit—to implement the following functions: total or partial restoration of calories on the nonreversible exchanger from the outside battery or from the reversible exchanger in evaporator mode, total or partial restoration of the calories on the reversible exchanger from the outside battery, refrigeration production on the reversible exchanger with total or partial evacuation of the calories on the nonreversible exchanger and/or on the outside battery.

Abstract: A reversible system for recovery of heat energy by sampling and transfer of calories from one or more media into one or more other media of any type. The innovation is a new principle of refrigeration operation that makes it possible—with a nonreversible plate exchanger, a reversible plate exchanger, and a finned battery on an outside air circuit—to implement the following functions: total or partial restoration of calories on the nonreversible exchanger from the outside battery or from the reversible exchanger in evaporator mode, total or partial restoration of the calories on the reversible exchanger from the outside battery, refrigeration production on the reversible exchanger with total or partial evacuation of the calories on the nonreversible exchanger and/or on the outside battery.