Is there a reason why you cannot define in "Detailed Edit" mode (or in
the Wizard mode for that matter) a fan powered terminal unit with a DX
VAV unit?

The only way I have found that you can model a fan powered terminal unit
is with a VAVS system (which requires a chilled water cooling coil).
The selections for a fan powered unit are greyed out if you select a
PVAVS system.

Any help would be appreciated.

Thanks!

Andy Phelps, PE, LEED AP