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NFPA 90A: Standard for the Installation of Air-Conditioning and Ventilating Systems, 2024
- Chapter 1 Administration [Go to Page]
- 1.1 Scope.
- 1.2 Purpose.
- 1.3 Application.
- 1.4 Retroactivity.
- 1.5 Equivalency.
- Chapter 2 Referenced Publications [Go to Page]
- 2.1 General.
- 2.2 NFPA Publications.
- 2.3 Other Publications.
- 2.4 References for Extracts in Mandatory Sections.
- Chapter 3 Definitions [Go to Page]
- 3.1 General.
- 3.2 NFPA Official Definitions.
- 3.3 General Definitions.
- Chapter 4 HVAC Systems [Go to Page]
- 4.1 General Requirements for Equipment.
- 4.2 System Components.
- 4.3 Materials.
- Chapter 5 Equipment, Systems, and Rooms [Go to Page]
- 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 [Go to Page]
- 6.1 Air Distribution.
- 6.2 Mechanical, Electrical, and Plumbing Controls.
- 6.3 Air Connectors.
- 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 [Go to Page]
- 7.1 Vibration Isolation Connectors.
- 7.2 Air Outlets.
- 7.3 Air Inlets — Return or Exhaust or Return and Exhaust.
- Chapter 8 Plenums [Go to Page]
- 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 [Go to Page]
- 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 [Go to Page]
- 10.1 General.
- 10.2 Ducts Used for Dust, Loose Stock, or Vapor Removal.
- 10.3 Ducts Specifically Fabricated for Environmental Air.
- 10.4 Other Spaces Used for Environmental Air (i.e., Plenums).
- Chapter 11 Controls [Go to Page]
- 11.1 Wiring.
- 11.2 Manual Control.
- 11.3 Smoke Dampers.
- 11.4 Smoke Detection for Automatic Control.
- Chapter 12 Acceptance Testing [Go to Page]
- 12.1 General.
- 12.2 Fire Dampers, Smoke Dampers, and CeilingCombination 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 [Go to Page]
