Zonefirst ZDB-12X12 12HX12W Parallel 24V 2-Pos S/R R-410A maintaining the integrity of the

maintaining the integrity of the original factory specifications

it is highly recommended to use the fixed OEM SWT2515 to ensure the system trips at the exact pressure mandated by the design

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

the internal electromagnet in the valve may be faulty

while the high-side range operates between 100 psi and 425 psi with a fixed 65 psi differential

Zonefirst ZDB-12X12 12HX12W Parallel 24V 2-Pos S/R R-410A maintaining the integrity of theThe 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