Ming,
From your sketch it looks like your fan is inside the plenun - wondering if this is an axial fan? Also from your sketch it looks like you may not have the proper room or straight run of ductwork to do a Pitot Traverse - there are no dimensions on your sketch. design looks like you are...
BuffFan,
I believe the answer is yes however the responsibility belongs with the end user that they install and opearate equipment according to the local codes which can vary from state to state and could alse depend on the local city inspectors.
From a manufacturing standpoint it would be...