Resideo ZD18X16TZ Damper 340155-7024 Because it lacks an internal

Because it lacks an internal regulator

This valve is designed for 24Vac floating (3-wire) or two-position SPDT control logic

Direct OEM Fit: Specifically engineered for Carrier 48TJ series units

Can I use this valve with R-22

Resideo ZD18X16TZ Damper 340155-7024 Because it lacks an internalThe Resideo ZD18X16TZ is a high performance rectangular zone damper engineered for heavy duty forced air zoning. Built with a rugged extruded aluminum frame and parallel blades, this 18" x 16" unit delivers low leakage performance, ensuring precise airflow control across multiple zones. The integrated 24Vac synchronous motor is mounted on the 16" side and features a power closed spring return open configuration, providing a fail safe normally open