ZoneFirst SPRD-14 Damper 322057-301 the lever allows technicians to

the lever allows technicians to manually open the valve for system filling

With a robust 250 PSI pressure rating at temperatures up to 400°F

This part is frequently cross-referenced with component number 209A90

37 lbs—it integrates seamlessly into tight footprints without compromising flow velocity

Replacing a drifting or fouled fixed temperature limit control is essential for resolving E250 error codes and preventing system short-cycling

ZoneFirst SPRD-14 Damper 322057-301 the lever allows technicians toThe ZoneFirst SPRD 14 Damper is a 14 inch round barometric static pressure regulating damper designed for high performance HVAC zoning. In a multi zone system, as individual zone dampers close, duct static pressure naturally increases. This barometric relief damper utilizes a single blade, counter balanced weighted arm to automatically compensate for this excess pressure, preventing coil freeze ups and high limit trips. Specifically engineered for