A few days ago I asked a question about HVAC for a clinic that I was inspecting, where my principal was sure there was a hole in the system.
Several people wrote with positive suggestions: Darren Spencer, Timothy Race, Wayne Wilson, Scott Frakes, Andrew Griffin, without critizing either my position as an inspector for this particular situation, or my lack of knowledge on the subject.
I thank all of the above, and especially Wayne Wilson who ended up being right: his suggestion was that the dampers might be acting up. Well, one of them was.
I climbed to the roof (lots of snow up there) with an HVAC fellow from my principal’s group, and found that a closed damper was partially open (some of the vanes were).
As a bonus, during the inspection I found a leak in the metal roof that must have been there for some time, as the structural member under the metal was already impacted by it. This allowed me to insert a recommendation for inspection of the roof.
So, Wayne Wilson et al, thank you very much…- Arnold