ATS’ high performance re-circulating and immersion chiller series are used for conditioning the coolant in liquid cooling systems. The re-circulating chiller series is a refrigeration-based system that provides chilled water for cooling purposes. The immersion chiller series are used to remove heat from a fluid tank with a high degree of flexibility and efficiency. The evaporator that is supported with a flexible hose is simply submerged into the fluid tank for heat extraction by the self-contained vapor compression system.