Dear all,

As I noticed, the LEED Online letter template for IEQ Prereq1 can not be used for VAV systems supplying multiple zones. The letter template calculates the outdoor air without taking into consideration all the equations in ASHRAE 62.1-2007 Appendix A (Evz, Zd, Xs, Vou, Diversity factor D...) and therefore I am not meeting the minimum outdoor flow rate for 90% of my zones!

As such, can I upload a clear excel sheet to LEED Online demonstrating compliance according to ASHRAE 62.1-2007 Appendix A?

Many thanks!