Hello experts, We recently received comments back from LEED and one of the comments says the following: It appears the equipment capacities (fan volume, fan power, cooling capacity, etc.) for the HVAC systems in the Proposed model are inconsistent with the equipment capacities in the actual design when comparing the LEED Energy Performance Summary Report to the mechanical schedules provided for PIf4: Schedule and Overview Documents G3.1.10 in the Proposed building column requires that the Proposed model reflect all HVAC systems at actual equipment capacities and efficiencies. The HVAC equipment capacities cannot be autosized in the Proposed model. Revise the Proposed model to reflect all HVAC systems at actual equipment capacities. In addition, update Table 1.4.7B, and provide a revised LEED Energy Performance Summary Report and the System Enterd Values reports for the Proposed model reflecting the changes. Further, if the equipment capacities and efficiencies are based on updated mechanical schedules and/or HVAC submittal sheets, provide the updated mechanical schedules and/or HVAC submittal sheets. The only question that I have is why would they require for the airflows, to be exactly the same, to the original load calculations when the load calculations looks for the worst case scenario (using ashrae basic envelope, lighting, values), while the energy model looks for the most energy efficient model (actual installed envelope, occupancy, etc). It make sense that they are looking for something similar but it?s definitely not going to match the capacities and or airflows, (load calcs tend to be oversized). I would greatly appreciate your opinion. Thanks. Catalina Caballero. AIA. Assoc., LEED GA. Sustainability Coordinator Johnson, Avedano, Lopez, Rodriguez & Walewski Engineering Group, Inc. Engineering for High Performance Buildings. MEPF - BIM - LEED - Cx 2510 NW 97 Ave, Ste 220, Miami, FL 33172. P: 305.594.0660 Ext: 217 ? F: 305.594.0907 www.jalrw.com | ccaballero at jalrw.com [cid:image001.png at 01CFE21D.DEFFD1B0] [cid:image002.png at 01CFE21D.DEFFD1B0] [cid:image003.png at 01CFE21D.DEFFD1B0] [cid:image004.png at 01CFE21D.DEFFD1B0] This email and any files transmitted with it are confidential and intended solely for the addressee. If you are not the named addressee you should not disseminate, distribute, copy, or alter this email. Please consider the environment before printing this email.