NFPAUtility Mechanical

NFPA 90A

Installation of Air-Conditioning and Ventilating Systems

US / International
Utility Mechanical

Reference profile

Designation
NFPA 90A
Title
Installation of Air-Conditioning and Ventilating Systems
Issuing body
NFPA
Current edition
[verify]
Status
Library record: draft; official standard status [verify].
Category
Utility Mechanical
1

Overview

Fire-safety requirements for the installation of air-conditioning and ventilating systems, including dampers and duct materials.

2

Scope & Applicability

Covers

  • Fire & smoke dampers
  • Duct materials
  • Air distribution
  • Smoke control interface

Does NOT cover (exclusions)

  • Exclusions are not documented in this library record. Confirm the official publication, neighbouring codes, the adopted edition, and jurisdictional boundaries before application.
3

Key Requirements

Lifecycle requirements

  • HVAC fire-safety design
  • Damper placement
4

Technical Details

Fire-safety requirements for the installation of air-conditioning and ventilating systems, including dampers and duct materials.

Components: Fire damper, Smoke damper, Duct, AHU.

Where to find it in the codeRefer to the official table of contents and the sections cited by the project specification; section numbering can vary by edition.
5

Engineering Notes

  • Governs where fire/smoke dampers are needed and acceptable duct/plenum materials.
6

Related Standards

  • SMACNA

    Companion or referenced standard; verify its exact relationship in the adopted edition.

  • ASHRAE 62.1

    Companion or referenced standard; verify its exact relationship in the adopted edition.

7

Source, Edition & Status

Publisher
NFPA
Edition Year
N/A
Industries
Utility, General Industry
Content Status
draft
Last Reviewed
2026-07-01
Last Updated
2026-07-01
Verified By
Engineering Reviewer
Official Link
N/A

This paraphrased summary is a discovery aid. Do not reproduce or substitute it for the copyrighted official publication or jurisdictional requirements.