ZoneFirst ZDS-12X10 Damper 321042-401 this is a mechanical rebuild

this is a mechanical rebuild kit consisting of diaphragms

freeze protection sensors

Whether you are performing routine maintenance or complex troubleshooting on specialized Aaon equipment

High Compatibility: Universal SPST open-high action and wide AC voltage ratings (up to 277Vac) allow this part to serve as a drop-in replacement for various HVAC temperature controllers

both meet the same performance and safety standards for the North American market

ZoneFirst ZDS-12X10 Damper 321042-401 this is a mechanical rebuildThe ZoneFirst ZDS 12X10 is a professional grade rectangular zone damper engineered for precision airflow management in multi zone residential and light commercial HVAC systems. This 12" wide by 10" high unit features high quality extruded aluminum construction and a parallel blade design to ensure smooth operation with minimal pressure drop. The ZDS 12X10 damper is equipped with a 24Vac synchronous motor mounted on the 10" side, specifically