NFPA 90A:2024

Chapter 1 Administration1.1 Scope. 1.2 Purpose.1.3 Application.1.4 Retroactivity.1.5 Equivalency. Chapter 2 Referenced Publications 2.1 General. 2.2 NFPA Publications. 2.3 Other Publications. 2.4 References for Extracts in Mandatory Sections. Chapter 3 Definitions 3.1 General. 3.2 NFPA Official Definitions. 3.3 General Definitions. Chapter 4 HVAC Systems 4.1 General Requirements for Equipment. 4.2 System Components. 4.3 Materials. Chapter 5 Equipment, Systems, and Rooms 5.1 Air-Cooling and Heating Equipment. 5.2 Materials. 5.3 Mechanical Cooling. 5.4 Furnaces. 5.5 Duct Heaters. 5.6 Evaporative Coolers. 5.7 Applicable Ultraviolet (UV-C) Germicidal Lamp Systems. 5.8 Heat Recovery Equipment. 5.9 Materials for Operation and Control of the Air Distribution System.5.10 Corridor Air Systems. 5.11 Air-Handling Equipment Rooms. Chapter 6 Air Ducts and Air Connectors 6.1 Air Distribution. 9.6 Damper Location Information. 9.7 Installation. 6.4 Supplementary Materials for Air Distribution Systems. 6.5 Air Duct Access and Inspection. 6.6 Air Duct Integrity. 6.7 Building Construction. 6.8 Shafts. Chapter 7 Vibration Isolation Connectors, Air Outlets, and Air Inlets 7.1 Vibration Isolation Connectors. 7.2 Air Outlets. 7.3 Air Inlets — Return or Exhaust or Return and Exhaust. Chapter 8 Plenums 8.1 Plenums. 8.2 Ceiling Cavity Plenum. 8.3 Apparatus Casing Plenum. 8.4 Air-Handling Unit Room Plenum. 8.5 Raised Floor Plenum. 8.6 Wall or Ceiling Finish in Plenums. Chapter 9 Dampers 9.1 Fire Dampers. 9.2 Penetrations — Protection of Openings. 9.3 Smoke Dampers. 9.4 Fire Dampers, Smoke Dampers, Combination Fire-Smoke Dampers, and Ceiling Dampers. 9.5 Fusible Links and Heat-Responsive Devices. 9.6 Damper Location Information.9.7 Installation. 9.8 Maintenance. 9.9 Smoke Barriers. Chapter 10 Electrical and Optical Fiber Wiring and Equipment in Plenums and Ducts 9.6 Damper Location Information. 9.7 Installation. 10.3 Ducts Specifically Fabricated for Environmental Air. 10.4 Other Spaces Used for Environmental Air (i.e., Plenums). Chapter 11 Controls 11.1 Wiring. 11.2 Manual Control. 11.3 Smoke Dampers. 11.4 Smoke Detection for Automatic Control. Chapter 12 Acceptance Testing 12.1 General. 12.2 Fire Dampers, Smoke Dampers, Combination Fire-Smoke Dampers, Corridor Dampers, and Ceiling Radiation Dampers. 12.3 Controls and Operating Systems. Annex A Explanatory Material Annex B Maintenance Annex C Informational References

This standard shall cover construction, installa‐ tion, operation, and maintenance of systems for air condition‐ ing and ventilating, 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.