Dual Circuit Control: Integrated 2-SPDT switch allows for simultaneous equipment shutdown and remote status signaling

preventing window condensation while ensuring consistent comfort

reducing external wiring complexity

making this the standard for contractors requiring an adjustable pressure switch that integrates seamlessly with modern building automation systems

Resideo ZD20X14TZ Damper 320720-756 Dual Circuit Control: Integrated 2-SPDTThe Resideo ZD20X14TZ Damper is a professional grade rectangular parallel blade zone damper designed specifically for heavy duty forced air zoning systems. Built with a robust extruded aluminum frame and parallel blades, this unit is engineered for low leakage performance, maintaining less than 1% leakage at 0. 5 in. WC. This 20" wide by 14" high HVAC zone damper features a 24Vac synchronous motor mounted on the 14" side, operating as a power closed