Halocarbon Clean Agent Extinguishing System Units

Designation Number:
ANSI/CAN/UL/ULC 2166
Standard Type:
National Standard of Canada - Domestic
Standard Sub-Type
Joint Canada-U.S. National Standard
Standard Development Activity:
Amendment Revision
ICS code(s):
13.220.20
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

These requirements cover the construction and operation of halocarbon clean agent fire extinguishing system units intended to be installed, inspected, tested, and maintained in accordance with the Standard on Clean Agent Fire Extinguishing Systems, NFPA 2001 and with the National Fire Code of Canada.

These requirements also cover halocarbon clean agent automatic extinguisher units that may have a manual means of operation, and are intended to be used in accordance with the manufacturer's installation instructions. Automatic extinguisher units are not intended:

a) For use as a general substitute for pre-engineered or engineered clean agent extinguishing system units; or

b) For protection of fire risks larger than those specified in the manufacturer's instructions for a single unit by using multiple units.

Project need:

As referenced in ANSI/CAN/UL/ULC 2166, “Halocarbon Clean Agent Extinguishing System Units,” halocarbon clean agent fire extinguishing system units are intended to be installed, inspected, tested, and maintained in accordance with the Standard on Clean Agent Fire Extinguishing Systems, NFPA 2001 and with the National Fire Code of Canada. In addition, where these requirements reference "extinguishing system unit," the requirements also apply to “automatic extinguisher units” unless specifically noted otherwise. An automatic extinguisher unit discharges extinguishing agent upon thermal actuation, could have a mechanical manual operation, is intended for use in normally unoccupied space, and is limited to a single protected area. The heat detection tubing definition is being introduced for clarification and to distinguish it from heat detection and distribution tubing. Heat detection tubing has been an identified part for actuation of automatic extinguisher units certified to UL 2166 since 2003; and is referenced in the instruction manual for certified automatic extinguisher unit. The heat detection and distribution tubing definition is being introduced to distinguish it from heat detection tubing. In addition, since the plastic tubing is being used to distribute the agent, a long term pneumatic strength test has been introduced at the maximum operating temperature and a 2.5 times safety factor relative to the maximum operating pressure corresponding to the maximum operating pressure for the clean agent pressure-temperature curve based on the maximum fill density for the cylinder/valve assembly. Additional supporting information requiring listing as defined in NFPA 2001:2022 is included in Sections 3.3.34, 4.2.1.1, 5.2.1.1, and 5.2.1.4.

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.