ACV Electrodes assy 537DZ024

The ACV Electrodes assy 537DZ024 is an electrode assembly for ACV boilers, including models such as Prestige 100 MK4, Prestige 120 V14, CA 400 Compact, CA 600 Classic, and Delta Pro 85. It serves as both ignition and ionization electrodes, delivering a high-voltage spark to ignite the fuel and proving flame presence via a rectified current. The assembly is resistant to soot accumulation and is designed to withstand high temperatures. It is available in type designations A26 and A40.

When selecting a replacement electrode assembly of this kind, key parameters to match include electrode length and bend, ceramic insulator diameter, spark gap, mounting flange type, and the specific burner series. Ensure the gap meets the manufacturer's specification for the burner, the ceramic insulator is free of cracks, and terminal connections to the ignition transformer are clean and tight. The assembly must be correctly positioned in the combustion head to avoid short-circuiting the spark or losing the flame signal.

Typical failure modes for this kind of electrode assembly include erosion of the electrode tip, cracking of the ceramic insulator, accumulation of soot, and gradual widening of the spark gap, leading to unreliable ignition. When these occur, the burner may fail to ignite or experience intermittent flame loss. Check the electrode tip for erosion, the ceramic for cracks, and the spark gap for proper spacing.