Rotating heat exchanger/bypass combo

A system comprising:

• at least two heat exchangers being alternatively cooled by an outlet medium wherein the outlet medium cools one of the at least two heat exchangers in a first mode of operation for the system and another of the at least two heat exchangers in a second mode of operation for the system;
• and
• a cooling circuit providing a cooling medium to the at least two heat exchangers, wherein the cooling circuit includes:
• a cooling load through which the cooling medium flows;
• a plurality of valves, that includes at least a first valve, a second valve, a third valve and a fourth valve, configured so that:
• the first valves is connected to one side of the cooling load and the fourth valves is connected to another side of the cooling load;
• the first and fourth valves are closed whereby the cooling circuit provides the cooling medium in one direction through the circuit to a first heat exchanger of the at least two heat exchangers in accordance with the first mode, and
• the second and third valves are closed whereby the cooling circuit provides the cooling medium in another direction in the cooling circuit that is reversed from the one direction to a second heat exchanger of the at least two heat exchangers in accordance with the second mode;
• and
• a flow direction of the cooling medium through the cooling load remains constant in the first mode and the second mode.