2015 NFPA 90B Standard - Current Edition

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Item #: NFPA_90B
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  • Description

    Protect people and property from fire, smoke and gases spreading through homes. Apply the latest edition of NFPA 90B.

    NFPA 90B: Standard for the Installation of Warm Air Heating and Air-Conditioning Systems provides the most up-to-date requirements to keep fire, smoke and gases from originating in and spreading through indoor HVAC systems in 1- and 2-family dwellings, and buildings that are under 25,000 cubic feet.

    Depend on the latest NFPA 90B for vital fire protection assurance. The requirements cover construction, installation, operation, and maintenance of systems for warm air heating and air conditioning -- including filters, ducts, and related equipment. Compliance helps protect lives and property from fire, smoke, and gases resulting from fire or conditions similar to fire.

    Provisions cover:

    • HVAC systems, components, and air distribution
    • Integration of a ventilation and air-conditioning system(s) with building construction
    • Controls including wiring, manual control, smoke dampers, and smoke detection for automatic control
    • Acceptance testing

    Stay up-to-code. AHJs, architects, contractors, mechanical and fire protection engineers, and building owners need NFPA 90B. (Softbound, 18 pp., 2015)


    Interested in other editions of NFPA 90B? Use the drop down menu above to select the edition year you need.

  • Table of Contents (2015 Current Edition)
    NFPA<sup>®</sup> 90B Standard for the Installation of Warm Air Heating and Air-Conditioning Systems 2015 Edition

    NFPA® 90B Standard for the Installation of Warm Air Heating and Air-Conditioning Systems, 2015 Edition

    Chapter 1 Administration
    1.1 Scope
    1.2 Purpose
    1.3 Application
    1.4 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 System Components
    4.1 Supply Systems
    4.2 Return Systems
    4.3 Common Requirements
    Chapter 5 Fire Integrity of Building Construction
    5.1 Clearances to Combustible Material
    5.2 Firestopping
    Chapter 6 Equipment, Wiring, and Controls
    6.1 Equipment
    6.2 Electric Wiring and Equipment
    6.3 Controls
    Annex A Explanatory Material
    Annex B Informational References
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    Sample (NEC® 2014)

    411.2411.3 Definition. Low-Voltage Lighting Systems.


    (A) General. Lighting Ssystems Ooperating at 30 Volts- volts or  Less. A lighting system consisting less shall consist of an isolating power supply, the low-voltage luminaires, and associated equipment that are all identified for the use. The output circuits of the power supply are shall be rated for not more than 25 amperes and  operate at 30 volts (42.4 volts peak) or lessmaximum under all load conditions.


    (B) Class 2. Listed Class 2 lighting equipment shall be rated in conformance with Chapter 9, Table 11(A) or Table 11(B).


    411.3411.4 Listing Required. Lighting systems operating at 30 volts or less shall comply with 411.3(A)411.4(A) or 

    411.3(B).411.4(B). Class 2 power sources and lighting equipment connected to Class 2 power sources shall be llisted.

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