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W classes, PUE and WUE

Liquid cooling foundations for buyers. Lesson 3, 14 min.

Three terms appear in almost every quote and every listing. Learn them first. ASHRAE W classes ASHRAE TC 9.9 names the liquid cooling classes W17, W27, W32, W40, W45 and W+. The number is the highest facility water supply temperature in degrees C. W+ means above 45 degrees C. All classes share a low…

The rest of this lesson is for learners enrolled in the course. See how Liquid cooling foundations for buyers works

Published by . How we check each vendor.

Cooling notes for data centers

A short note now and again: a vendor worth knowing, a cooling-class update, and one source note. No noise.

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