Which test is explicitly required for system-type smoke detectors in one- and two-family dwellings?

Which test is explicitly required for system-type smoke detectors in one- and two-family dwellings?

• A. Functional test per manufacturer's instructions
• B. Sensitivity test using calibrated instrument
• C. Smoke entry test using aerosol
• D. None of the above

Answer: (A)

The main idea is that residential system-type smoke detectors must be tested to verify they actually operate as intended, and the test must follow the manufacturer's instructions. A functional test demonstrates that the detector will respond to smoke and trigger the alarm or panel as designed, ensuring the interconnection and signaling work properly. This is the standard requirement for one- and two-family dwellings. Sensitivity tests using calibrated instruments are more specialized and not routinely required for typical home systems, and aerosol smoke entry tests are not standard field tests for these installations because they can be unsafe or inappropriate for home detectors. Following the manufacturer’s prescribed functional test ensures the device is operating correctly and consistently with how it was designed to perform.

The main idea is that residential system-type smoke detectors must be tested to verify they actually operate as intended, and the test must follow the manufacturer's instructions. A functional test demonstrates that the detector will respond to smoke and trigger the alarm or panel as designed, ensuring the interconnection and signaling work properly. This is the standard requirement for one- and two-family dwellings.

Sensitivity tests using calibrated instruments are more specialized and not routinely required for typical home systems, and aerosol smoke entry tests are not standard field tests for these installations because they can be unsafe or inappropriate for home detectors. Following the manufacturer’s prescribed functional test ensures the device is operating correctly and consistently with how it was designed to perform.