A project I’m working on recently submitted a Design Preliminary Review to USGBC and received comments back.  One of the comments on the model is that my Proposed Case design airflows reported (from Table 1.4.2 in the LEED Output summary report) are not consistent with the Mechanical Schedules.  I admittedly missed this requirement.  My model is set up so that Main airflow for cooling and heating are "to be calculated." Actual airflow on the design documents and Mechanical Schedules is different due to rounding, over-sizing for future, etc.  My question is this - what is the best way to model actual cooling and heating airflow in Trace? I have a very large building (almost 200,000 SF) and very large model due to large number of rooms.  I've now learned i can group like rooms into thermal blocks, will do that next time.  So, inputting actual room airflow into the hundreds of rooms will be incredibly time consuming, albeit the most accurate and full proof approach.  My templates are set up so that "airflow" is set by AHU, meaning each room is assigned to an AHU System by using the templates.  I'm thinking of changing the main airflow template to the % of design option, then calculating the ratio of actual airflow to calculated, and putting that in the template.  If Trace calculated a system needs 1,000 cfm, but my AHU is scheduled for 1,500 cfm, then I can put in 150% into the template so that all rooms are increase proportionally.  Anyone agree with this approach or have other ideas?  My systems are VAV with 30% minimum, hydronic reheat.