Do Proposed BuildingSegments need to match Baseline BuildingSegments?

[JacksonJ-KC]

To put this question into context, I am trying to understand how to write the RMD of a Proposed HVAC System (DOAS for example) that serves an entire building which includes multiple "building segments".

Would the proposed RMD have the same building segments as the baseline RMD, and one of the building segments is selected arbitrarily to contain the HVAC system, then every DOAS terminal is able to reference the DOAS HVAC system, even if it is outside of its building segment?

[JacksonJ-KC]

To me this seems like an issue that stems from HVAC Systems being inappropriately located under BuildingSegment instead of Building and perhaps that was a solution to an issue within a specific ruleset