Zonefirst ZDB-12X18 12HX18W Parallel 24V 2-Pos S/R Refrigerant Specifically calibrated for high-performance units

Specifically calibrated for high-performance units like the HC5B(024-060)F1 and HC8B(024-060)F1 series

the setpoint sliders can be limited or locked using HFO-0027 setpoint stops to prevent unauthorized adjustments in public spaces

Always verify your existing bracket alignment to ensure the springs make solid contact with the electrode tabs

Key Benefits Universal Compatibility: Reduces inventory by replacing over 150 ignitor models including White-Rodgers HotRod and various Norton series

Zonefirst ZDB-12X18 12HX18W Parallel 24V 2-Pos S/R Refrigerant Specifically calibrated for high-performance unitsThe Zonefirst ZDB 12X18 is a professional grade 12HX18W Parallel 24V 2 Pos S R zone damper engineered for high static HVAC environments. Built with a heavy duty extruded aluminum frame and 3 inch parallel blades, this bottom mount zone damper ensures quiet, low leakage performance in rectangular ductwork. The unit utilizes a 2 wire spring return motor rated for 24VAC, providing a fail safe open position when de energized and a powered closed state.