When remote indicators are used with duct smoke detectors, what must the indicators be labeled with?

Remote indicators used with duct smoke detectors must be labeled with the location of the associated duct smoke detector. This requirement is crucial for several reasons. First, in emergency situations or during maintenance, it is essential for responders and personnel to quickly identify which detector has activated. Knowing the specific location of the duct smoke detector helps them address the situation promptly and accurately.

Labeling also aids in proper inspections and testing procedures, ensuring that the correct devices are being evaluated. This is especially important in larger buildings or complex systems where multiple duct smoke detectors may be present, minimizing confusion and enhancing the effectiveness of the fire alarm system.

While the function of the device and listing requirements are important aspects of fire alarm systems, the primary focus in this context is on providing clear location information for the associated duct smoke detector. Thus, emphasizing accurate labeling that includes the specific location serves a critical purpose in the overall safety and functionality of the fire alarm system.