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
~50-microncommon TCS side-stream filtration (sub-micron, e.g. 0.2-micron, on premium units)
~7.5–12 °Ctarget coolant delta-T across the TCS; cold-plate pressure drop ~20–55 kPa depending on plate and flow (no vendor-published NVL72 figure)
~1.2–2.0 L/min/kWDLC flow rule of thumb (PG25); ~7.5–12 °C coolant delta-T target across the TCS