Zonefirst AOBD-12X10 Damper Refrigerant providing precise flame impingement on

providing precise flame impingement on the thermocouple for consistent millivolt generation

ranging from the compact EV210B to the large-capacity EV220B (6-100)

which must be purchased separately to ensure the PSC circuit operates at peak efficiency

Installing this Utica gas boiler flame sensor ensures your heating system safety protocols remain intact

Double-Throw) that provides versatile control for both heating and cooling circuits

Zonefirst AOBD-12X10 Damper Refrigerant providing precise flame impingement onThe Zonefirst AOBD 12X10 is a heavy duty automatic opposed blade damper designed for precision airflow management within forced air zoning systems. Measuring 12 inches wide by 10 inches high, this unit features an opposed blade damper configuration, which is the preferred choice for veteran technicians seeking to minimize air turbulence and ensure a more linear pressure drop compared to parallel blade designs. Utilizing a 24Vac power open power closed