Hi LeedUsers,

I have one simple question. According to section G3.1.1 of ASHRAE 90.1 Standard each floor for system 5 through 8 shall be modeled with a separate HVAC system. I hope it doesnt mean that each floor shall have its own heating and cooling source but only AHU per floor and these AHUs will be supplied by one central heating/cooling source (or more central sources according to section G3.1.3).

I definitely prefer the second option but I rather ask.

Thank you in advance.