Description
The Modine 5H71945 Flame Sensor detects flame presence within the burner assembly by sensing the microamp signal generated during combustion, confirming proper ignition status. It operates using flame rectification, where the sensor rod conducts a small electrical current when exposed to flame, allowing verification of active combustion. Within HVAC systems, it is mounted near the burner area to continuously monitor flame conditions. Its probe structure ensures accurate signal detection, preventing unverified gas flow and preserving the correct burner sequence during repeated operating cycles.
