Standard for Leakage Rated Dampers for Use in Smoke Control Systems
Scope:
These requirements cover dampers intended for use in heating, ventilating and air conditioning (HVAC) systems.
Leakage-rated dampers (smoke dampers) are intended to restrict the spread of smoke in HVAC systems that are designed to control the movement of smoke within a building when the HVAC system is operational in engineered smoke control systems.
Combination Fire and Smoke Dampers are intended to restrict the spread of smoke in HVAC systems that are designed to control the movement of smoke within a building when the HVAC system is operational in engineered smoke control systems, and provide a barrier to passage of flame and hot gases. Combination Fire and Smoke Dampers shall meet the requirements of CAN/ULC-S112, Standard Method of Fire Test of Fire-Damper Assemblies and this Standard.
Project need:
There currently is a reference to NFPA 90A-02 in 4.3.4 Exception B.
The referenced edition of the NFPA standard (2002) is currently unavailable on NFPA read-only standards.
Sleeve thickness, if required by this standard should be clearly indicated.
According to UL-ULC style manual V9, para 32, the standard should be self-sufficient.
NFPA 90A is not used in the National Building Code of Canada and should be removed to avoid confusion.
NFPA 90A-2024 refers to the manufacturer's instructions, listing and SMACNA Fire, Smoke and Radiation Damper Installation Guide.
However, the SMACNA guide should not be used if it conflicts with the manufacturer literature and is not proposed to be included in S112.
Finally, according to UL-ULC style manual V9, para 12, the standard editions should be removed and reference made to the latest editions published.
Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.
Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.