Compliance with Standard 90.4 is achieved by meeting or exceeding both the and Electrical Load Component (ELC) requirements. Mechanical Load Component (MLC)
: While Standard 90.1 covers general buildings, 90.4 is the specialized "sister" standard designed for the unique high-density loads of data centers (typically defined as spaces with IT loads >10kW). Compliance Metrics : ashrae 904 pdf upd
ASHRAE maintains these documents through a "continuous maintenance" process, releasing addenda as technologies evolve. Read-Only Versions of ASHRAE Standards Compliance with Standard 90
Broadened scope to address sustainability metrics like water use and carbon impact. Core Structural Framework ashrae 904 pdf upd