Standardized Electrical Interfacing: Operates on a 24V AC circuit

This SPST pressure switch consolidates high-side protection and low-side cycling into a single NEMA 1 enclosure

or a complete lack of airflow while the thermostat is calling for heat or cooling

this board requires the specific model and serial number of the unit at the time of order

5" water column full rate setting with a 0

Viessmann 7858519 Assembly 322838-753 Standardized Electrical Interfacing: Operates onThe Viessmann 7858519 Ignitor Flame Sensor Assembly is a critical OEM component designed for high performance combustion control in industrial and commercial heating systems. This dual purpose assembly streamlines maintenance by integrating the electrode responsible for generating a high voltage spark with a precision flame rectification sensor. By providing real time feedback to the ignition control board, the 7858519 ensures safe burner operation