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Why should primary and secondary water quality and filtration remain separate?
Direct, data-backed answers to the questions that matter before and during deployment.
In L2L systems, primary (facility) and secondary (IT loop) water quality must be managed separately: facility water quality, particulates and pressure swings must not enter the secondary. The CDU isolates via a plate heat exchanger; the secondary runs its own filtration (50 μm, optional 25 μm), make-up and monitoring to protect microchannels from fouling and corrosion.
Why isolation
Facility water may carry particulates, hardness ions and corrosive agents; direct entry fouls microchannels, scales and corrodes. The plate exchanger transfers heat but not water quality.
How to manage the secondary
Filtration (50 μm, optional 25 μm aligning with OCP 25 μm), routine water tests (conductivity, pH, particulates), make-up records and freeze-protection concentration management.
What to watch
Add primary filtration if facility water misses plate-inlet requirements; set secondary fluid-change intervals from test results; log water quality in operations records.