Vitodens 200, 300-W WB2 WB3A 44/66 Ionisation Electrode 7818364

Viessmann Ionisation Electrode 7818364

For use with the following boilers:

• 7144152 Vitodens 200-W WB2 44kW System Boiler
• 7159979 Vitodens 200-W WB2 44kW System Boiler
• 7170193 Vitodens 200-W WB2 60kW EG-E Cascading Boiler
• 7176778 Vitodens 300-W WB3A 49kW System Boiler
• 7176779 Vitodens 300-W WB3A 66kW System Boiler
• 7144153 Vitodens 200-W WB2 60kW System Boiler
• 7176780 Vitodens 300-W WB3A 49kW System Boiler
• 7176781 Vitodens 300-W WB3A 66kW System Boiler

Usually, there are two types of electrodes, ignition electrodes and flame sensing electrodes (also known as an ionisation electrode)

The ignition electrode is responsible for making the spark that begins combustion.

The flame sensing electrodes are responsible for checking if there is a flame present in the burner.

This is an important task and if the flame is not detected the boiler knows to re-attempt ignition.