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Question asked by jacques.renaud on Feb 22, 2017

Norme NFPA 90A

Some of these units are fairly large. Some are manufactures (prefabricated or custom) and others are constructed on site. How does NFPA 90A establish the difference between what can be defined as an equipment and, on the other hand, what is part of the duct system or the plenum and therefore subject to the requirements of or ?