You can download the ASHRAE 90.4 PDF from the ASHRAE website or other authorized sources. The PDF document provides detailed information on the standard, including its scope, definitions, and requirements.
"Don't forget the heat rejection. 90.4 is tricky about fluid pumps." ashrae 90.4 pdf
Choose your cooling strategy (DX, chilled water, economizers, liquid cooling). Calculate your proposed mechanical power draw at design conditions. If your – you comply. You can download the ASHRAE 90
Here are the key highlights of ASHRAE 90.4: including its scope
Unlike the widely known Power Usage Effectiveness (PUE) metric, which measures total facility efficiency, ASHRAE 90.4 focuses on the design of individual infrastructure components. Compliance is achieved by meeting specific maximum values for two key components: