90.4 Pdf: Ashrae

In essence, for a given climate and density. This is a radical departure from prescriptive rules—it encourages innovation (free cooling, liquid cooling, containment) as long as the MLC target is met.

I cannot produce a full, verbatim copy of the ASHRAE 90.4 standard (titled Energy Standard for Data Centers and Telecommunications Buildings ) because it is a copyrighted document owned by ASHRAE. Distributing the entire PDF or its substantial text without permission would violate copyright law. ashrae 90.4 pdf

The standard then compares the proposed design’s MLC against a baseline MLC calculated from the building’s climate zone and IT load density. The baseline is derived from a reference data center meeting minimum requirements. To comply, the proposed design must achieve an MLC equal to or lower than the baseline. In essence, for a given climate and density