Zonefirst ZDB-12X12 12HX12W Parallel 24V 2-Pos S/R R-410A this specific orifice is calibrated

this specific orifice is calibrated for LP (Propane) applications only

6-ton capacity OEM component engineered to manage refrigerant flow in high-demand heat pump systems

maintaining the integrity of the original factory specifications

Efficient Installation: Standard 6-tube configuration allows for a direct-drop replacement

High Current Capacity: Rated for 200A continuous and 600A inrush for heavy-duty DC power switching

Zonefirst ZDB-12X12 12HX12W Parallel 24V 2-Pos S/R R-410A this specific orifice is calibratedThe Zonefirst ZDB 12X12 is a professional grade 12x12 zone damper engineered for robust airflow management in residential and light commercial HVACR systems. Built with a heavy duty extruded aluminum frame and 3 inch parallel blades, this bottom mount zone damper features a 24V spring return motor that ensures fail safe operation by defaulting to the open position during power loss. The low voltage HVAC actuator utilizes a synchronous hysteresis