Ask the AHJ? It differs from county to county. Logic seems to be lost. Authorities pay more attention to verbage than logic - it's rediculous and sad. And you can't question these people - I mean gods. This is the same county that prohibited a fart fan from discharging into a parking deck. I...
Lee County Florida prohibits condensate disposal into the sanitary system. I so far am at a loss as to why. Is it because of micro's in the condensate or what. I know of no other AHJ that stipulates this. Looking for feedback.
Trolling? Not intentionally, but if so it worked. The last two comments are valid - junior engineers and designers. These are the reasons why a decision to go RA plenum is "not automatic". But if I can, I will. I'm out.
RA plenums are not an automatic, but any time you can use them. They are great for mold prevention. Designing hard ducted RA systems because you think so and so is really irresponsible. If you did it for me, you would be out the door.