We are working on a Manufacturing Building project in India.  Direct evaporative cooling units (ECU) are used for cooling in certain spaces like office areas and a manufacturing area in the building. As per the review comments, per the definitions within ASHRAE 90.1-2010 evaporative units are not considered mechanical cooling, these spaces are considered unconditioned and must be modeled identically in both the Proposed and Baseline buildings. And we are asked to Update the Baseline models so that the evaporative units are modeled identically to the Proposed, in accordance with Appendix G requirements. But in reality, the ECUs are chosen instead of the Conventional AC system as they provide comfort equally and are more energy-efficient than conventional AC systems. Modeling the same system in both base & design will not give any advantage of energy savings. Can someone guide on this?