you must select a different color-coded spring to avoid compromising the regulator's accuracy

While often the cause

High-Voltage Efficiency: Optimized for 460V 50W operation

a critical OEM replacement part engineered for selective gas-fired heating systems

Zonefirst AOBM-8X18 Damper Els PW 17895 you must select a differentThe Zonefirst AOBM 8X18 is a professional grade 8 inch by 18 inch motorized zone damper designed for bottom mount or top mount integration in horizontal rectangular ductwork. Engineered with an opposed blade damper configuration, this unit ensures precise airflow modulation by utilizing counter rotating blades that minimize turbulence and system noise. The damper is driven by a heavy duty 24Vac power open power closed actuator, requiring a three wire