Fenwal 22-100000-664 Electrode Assembly

The Fenwal 22-100000-664 Electrode Assembly is a precision-engineered ignition electrode designed for use with high-output commercial atmospheric burners and specialized boiler ignition systems. As a critical component in the flame rectification circuit, this assembly features a durable ceramic insulator and a resilient sensing rod capable of withstanding the high-temperature environments typical of industrial combustion chambers. This replacement electrode is specifically configured to integrate with Fenwal ignition modules, ensuring consistent spark generation and reliable flame sensing to prevent nuisance lockouts. Proper alignment of the flame sensor rod is essential for maintaining a stable microamp signal to the control board. Contractors should verify the physical dimensions and mounting orientation to ensure direct compatibility with existing burner hardware. Utilizing this OEM-grade spark electrode reduces troubleshooting time and ensures the burner meets factory specifications for startup and flame-proving sequences.

• High-dielectric ceramic insulator prevents voltage leakage during the spark-to-ground sequence.
• Robust alloy sensing rod engineered for thermal stability and corrosion resistance in high-heat zones.
• Compatible with a wide range of Fenwal gas ignition controls for seamless system integration.
• Precision-formed electrode tip ensures a consistent spark gap for reliable gas ignition.
• Designed for direct spark ignition (DSI) and intermittent pilot applications in commercial HVACR equipment.

How do I troubleshoot a weak flame signal with this electrode?
First, ensure the sensing rod is positioned directly in the flame path and clean any carbon buildup with a non-conductive abrasive. Check for a solid ground connection between the burner and the ignition control module, as a poor ground will disrupt the rectification signal.

Can this electrode be used in high-moisture combustion environments?
Yes, the glazing on the ceramic housing is designed to resist moisture absorption, which helps prevent electrical tracking and shorting in varied HVAC mechanical room conditions.

What is the standard spark gap setting for the 22-100000-664?
While typically pre-set, the spark gap should be verified against the appliance manufacturer’s specifications, generally ranging between 1/8" and 3/16" for optimal arc intensity.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.