NFPA 90B:2021
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Standard for the Installation of Warm Air Heating and Air-Conditioning Systems
Hardcopy
05-31-2023
English
08-14-2021
This standard shall cover construction, installa‐ tion, operation, and maintenance of systems for warm air heat‐ ing and air conditioning, including filters, ducts, and related equipment to protect life and property from fire, smoke, and gases resulting from fire or from conditions having manifesta‐ tions similar to fire.
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