TCS · Technology Cooling System
The secondary liquid loop that carries heat from IT equipment to the CDU; the facility loop rejects that heat onward to the outside world.
Current numbers
~7.5–12 °C (typical 10 °C)OCP's TCS guideline for cold-plate coolant rise, ~1.25–2.0 L/min per kW of PG25; your rack's flow curve sets the value
~3–5 °CCDU heat-exchanger approach (FWS→TCS) as a design allowance; OCP's Project Deschutes 5 CDUs are rated 2 MW at 3 °C
~25–50 µmFull-flow TCS filtration (follow the rack OEM's requirement); side-stream polishing can be sub-micron, 0.2 µm on Deschutes-design units