Have you had AHJ’s request FPE seals on hood fire suppression systems often? It’s in the letter of UFC 3-600-01 (this is a US military project) but has not come up before for us.
Do you have an opinion on what needs to happen if the system (or the majority of it) is factory installed in the hood? Can it be treated as part of the UL listed assembly?
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PE PREP SERIES