NFPA 90B 2024 Standard for the Installation of Warm Air Heating and Air-Conditioning Systems

In the event of a fire emergency, fire, smoke, and gases can quickly spread through heating, ventilation, and air-conditioning (HVAC) systems, elevating the risk of injury and loss. NFPA 90B, Standard for the Installation of Warm Air Heating and Air-Conditioning Systems, provides complete provisions for the construction, installation, operation, and maintenance of HVAC equipment, including filters, ducts, and related components. The standard applies to indoor systems in one- and two-family dwellings and buildings under 25,000 cubic feet. NFPA 90B criteria HVAC systems, components, and air distribution Integration of ventilation and air-conditioning system(s) with building construction Fire integrity of building construction Controls including wiring, manual control, smoke dampers, and smoke detection for automatic control Acceptance testing The 2024 edition Alignment of Chapter 4, Noncombustible Materials, with the extracted text UL586 High-Efficiency, Particulate, Air Filter Units, has been added to Chapter 7 to provide additional reference requirements Editorial and reference updates to keep the standard current while ensuring ease of use for the reader.

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