Does this damper require a 3-wire or 2-wire connection

which directly reduces motor bearing stress and eliminates harmonic noise in the ductwork

ensuring reliable pull-in even during minor voltage fluctuations

Built with durable high-temperature insulation

this unit ensures reliable switching for compressors

Resideo ZD20X24TZ Damper Els PW 29614 Does this damper require aThe Resideo ZD20X24TZ is a heavy duty parallel blade zone damper designed for precision airflow control in multi zone HVAC systems. Building on the reliable design of the legacy ZDB 20X24, this 20 inch wide by 24 inch high damper features a synchronous motor mounted on the 24 inch side. Operating on a standard 24Vac signal, the actuator utilizes a power closed spring return open configuration, ensuring the zone defaults to an open state during power