Flame sensor

Heating · Oil Furnaces · printed page 140 (PDF page 141)

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Book index entries

Burner – Oil – Flame Sensor Flame Sensor for Oil Burner Oil Burner – Flame Sensor

Text in the illustration

transformer/ ignitor
flame
blast tube (shown clear)
flame sensor (photocell) wired back to primary controller
reset button
primary controller
new style primary controllers use a flame sensor mounted in the blast tube to verify ignition
from oil tank

Generated explanation

The illustration shows an oil burner assembly with its blast tube rendered transparent to reveal the internal burner components and flame sensor. A flame extends from the end of the blast tube. The photocell flame sensor is mounted in the blast tube and wired back to the primary controller to verify ignition. The primary controller has a reset button and sits beside the transformer/ignitor above the burner housing. A fuel supply line is identified as coming from the oil tank.

Components

oil burner blast tube photocell flame sensor primary controller reset button transformer/ignitor burner housing oil supply line sensor wiring