Resideo ARD9TZ Damper Freon What is the difference between

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ensuring exact magnetic pull for consistent armature movement

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This non-spring return electric actuator is engineered for precise modulation of dampers and valves

ensuring performance in varied HVAC environments

Resideo ARD9TZ Damper Freon What is the difference betweenThe Resideo ARD9TZ is a 9 inch automatic round damper engineered specifically for high efficiency forced air zoning systems that require reliable airflow control. Operating on 24Vac, this two position damper uses a power closed spring return open actuator, ensuring a fail safe open position during power loss to maintain system circulation. This model is the professional grade direct replacement for ARD9TZ U, RDS 9, and CRDS09 legacy dampers.