Hi everyone,

I'm currently performing a PRM assessment of an Office building. ASHRAE 90.1 - 2016 has condensed in its appendix G all prescriptive information to model the Baseline building. It is also known that the Proposed Design must follow all the X.4 (mandatory provisions), incluiding the 6.4.3.8 - DCV.

However, it is not clear anywhere in the standard (specially on appendix G) or in the User's Manual that the Baseline building HVAC systems must be modelled with DCV, which I consider quite strange the absence of this prescription. Particularly on Section G3.1.2.5, there seems to be no specification as what to model on the Baseline when the Proposed models DCV.

Can please someone point me in the right direction? Do I must model DCV in the Baseline Building's systems/spaces? Are we to follow the same rules as per the Proposed Design (6.4.3.8)?

Thank you all in advance!

Regards,

Luis Andrade