Resideo ZD24X10TZ Damper 318518-761 and ZPT series models such

and ZPT series models such as the ZR84K through ZR144K

The 331-4510 features a factory-set 5-10 psi spring range

Featuring a B 1 3/8-inch bore diameter

a specific conversion kit (typically 393691) is required and must be installed by a licensed technician

Does this model include a positioner

Resideo ZD24X10TZ Damper 318518-761 and ZPT series models suchThe Resideo ZD24X10TZ is a heavy duty 24" x 10" parallel blade zone damper engineered for precise airflow management in high static residential and light commercial forced air systems. This rectangular zone damper utilizes a synchronous 24VAC motor with a power closed spring return open (fail safe) configuration, ensuring optimal ventilation even during power loss. Built with a rugged extruded aluminum frame and parallel blades, this unit is designed