Hi everyone,

I've been working on a model of a school for quite a while. What has me stumped is how to model demand control ventilation. When I add DCV via the parametric run screen my gas load drops by 50%. It just doesn't seem possible that I would get that degree of savings. My base system is Packaged VAV with hot water reheat. I've included perimeter radiation but have the program sizing it. Has anyone else ever run into this and if so how have you resolved it. Thanks in advance for your help.

Delbert Smith Jr., PE, CPD