or 240V AC at 50/60 Hz

Simplified Serviceability: The combination control valve design replaces separate regulators and thermostats

By monitoring the voltage across the start winding

25" WC for accurate high-fire and low-fire pressure sensing

Split-Core Convenience: The easy-to-install split-core housing allows for retrofitting onto active circuits without downtime

Resideo ARD14TZ Damper Freon or 240V AC at 50/60The Resideo ARD14TZ is a 14 inch automatic round damper designed for precision airflow control in residential and light commercial HVAC systems. This 24Vac power closed spring return open damper provides a default open fail safe, ensuring ventilation or zone cooling remains active during power loss. Built with heavy duty galvanized steel, the ARD14TZ motorized damper features a two position actuator that is easily reversible for field flexibility. As