With a DC resistance of 180 Ohms and a low 37 mA current draw

Contractor-Friendly Design: The compact footprint and 1/2" NPT connections facilitate fast installs in restricted areas

and 9-13 PSI ranges

providing a reliable alternative to standard copper when corrosive combustion byproducts are a concern

maintaining the structural integrity of the fan housing

Resideo ARD9TZ Damper Els PW 17895 With a DC resistance ofThe 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.