Fully redundant cooling unit with phase change flow control unit

A cooling system, comprising:

• a first cooling loop to provide cooling liquid to an immersion tank comprising a heat load, wherein the first cooling loop comprises a first condenser unit, a first liquid supply line, and a first vapor return line;
• a second cooling loop to provide cooling liquid to the immersion tank, wherein the second cooling loop comprises a second condenser unit, a second liquid supply line, and a second vapor return line;
• an interconnection loop coupled to the first vapor return line and the second vapor return line;
• a two-way fluid reducer disposed on the interconnection loop coupling the first vapor return line with the second vapor return line;
• a first pressure sensor coupled to the first vapor return line;
• a second pressure sensor coupled to the second vapor return line;
• and
• at least one main cooling source comprising a fluid control valve controlled based on the first pressure sensor and the second pressure sensor.

A method of controlling a two-phase cooling distribution unit, comprising:

• receiving pressure data from a first pressure sensor coupled to a first vapor return line of a first coolant distribution loop comprising a first condenser unit;
• receiving pressure data from a second pressure sensor coupled to a second vapor return line of a second coolant distribution loop, wherein the second coolant distribution loop comprises a second condenser unit and operates in parallel with the first coolant distribution loop, and wherein an interconnection loop, comprising a two-way fluid reducer, is coupled to the first vapor return line and the second vapor return line;
• controlling a cooling capacity of the first coolant distribution loop based on the pressure data from the second pressure sensor;
• and
• controlling a cooling capacity of the second coolant distribution loop based on the pressure data from the first pressure sensor.