ULC 540

This Standard sets forth the minimum requirements for the design, installation, inspection, testing and maintenance of residential fire warning systems for use within dwelling units and care occupancies not requiring fire alarm systems conforming to CAN/ULC-S524, Installation of Fire Alarm Systems. (See Appendix A, Explanatory Materials, Clause A1.1).

NOTE: This Standard is intended to apply to both required and voluntary residential fire warning system installations. (See Appendix A, Explanatory Materials, Clause A1.1-Note)

This Standard specifies how such residential fire warning systems shall be installed to perform their intended function. (See Appendix A, Explanatory Material, Clause A1.2.)
This Standard is not intended to specify the type and extent of residential fire warning systems.

The installation of fire detection and alarm devices not covered by the requirements in this Standard shall be in accordance with good engineering practice and the manufacturer's published installation instructions.