Which unit provides remote alarm signaling for airflow issues?

• A. Airflow remote alarm unit
• B. Indicating and control panel
• C. Pinwheel sensor unit
• D. Duct damper assembly

Answer: (A)

Remote alarm signaling for airflow issues is provided by the airflow remote alarm unit. This device is designed to take input from airflow sensors and send an alarm signal to a remote annunciator or centralized monitoring system, so responders can be alerted even when they’re not at the sensor location. It often wires into the monitoring system and can trigger audible or visual alerts at a distant location, ensuring quick awareness of an airflow problem.

Other components don’t serve this remote signaling role by themselves. The indicating and control panel shows local status and allows manual control at the point of use. The pinwheel sensor unit detects airflow but doesn’t transmit alarms remotely on its own. The duct damper assembly regulates or modulates airflow and isn’t involved in signaling alarms.