Read it in context.
Liebert XD system design manual SL-16655_REV17_08-24, §3.11, printed pages 24–25 (PDF pages 30–31). Equipment-specific supply/return context; does not prescribe a BMS crosswalk.
The linked guide explains how this source informs its topic. Check the document’s scope and the edition adopted by your project before applying it. A publisher overview or product guide does not reproduce the full requirements of a standard.
Read the library’s edition and applicability notes.