Kromschroder Ionisation electrode rod 34472920

Kromschroder Ionisation electrode rod 34472920 is a flame-sensing element for Kromschroder ZAI pilot burners. It is designed for ionization flame detection and connects via a 4 mm ignition cable. The electrode is resistant to soot and is used with control units such as IFS/IFD or PFS/PFD. It is a consumable part that must be replaced when damaged.

Parts of this type are selected by electrode length, bend, insulator diameter, spark gap, mounting flange configuration, and the specific burner series for which the rod profile was originally shaped. Before ordering, compare the original rod geometry to ensure exact match for electrode-to-earth position and flame coverage. Install with clean insulators and secure connection to the ignition cable. Verify flame current with a meter during commissioning.

Common failure modes include erosion of the tip, cracking of the ceramic insulator, sooting of the sensing surface, and a drifting gap that can delay flame detection. When the electrode fails, the burner control unit may lose the flame signal and lock out within the safety time. Check the electrode for physical damage, soot buildup, and proper gap alignment.