Required Labeling of Active System Pipes
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- Pipe labeled on each floor “Radon Reduction System”.
- Circuit breakers for system fan and warning devices labeled “Radon Reduction System” (if necessary).
- Mark pressure range on manometers.
- Exterior fans and pipe labeled using weatherproof labels.
- Mitigation Tag legible from 3′ away.
Manometer
- Typically, active systems will have a manometer similar to the one illustrated here. A simple U-tube manometer is mounted to the system vent pipe.
- The manometer monitors the operation of the SMD or SSD depressurization system fan.
- When the liquid levels in the legs of the manometer are uneven, a pressure differential exists, indicating correct operation of the fan and system.
- If the manometer liquid levels are even, the fan or system is not operating properly and needs repair.
Mitigation Tag
- Installer’s Name
- Installer’s Phone Number
- Installer’s License Number
- Date of Installation
- IEMA Tag number
- This tag # is to be documented by measurement and mitigation licensees for all systems installed after 11-1-09.
- Recommendation to test every 2 years.