Fenwal 22-100001-117 Electrode Assembly

The Fenwal 22-100001-117 Electrode Assembly is a specialized direct spark ignition (DSI) electrode designed for precise flame sensing and high-voltage ignition in industrial gas-fired equipment. This dual-probe configuration utilizes high-purity alumina ceramic insulation to prevent dielectric breakdown under extreme thermal conditions. Compatible with various Fenwal ignition modules, this assembly ensures consistent spark gap spacing for reliable burner light-offs and accurate microamp signal transmission to the control board. The rugged stainless steel electrode tips resist carbon buildup and oxidation, maintaining conductivity through high-cycle operations in commercial heaters and industrial furnaces. Proper installation of this replacement spark electrode is critical for preventing nuisance lockouts and ensuring the flame rectification circuit operates within OEM specifications for heating systems.

• Optimized Ignition Geometry: Precise probe alignment ensures a consistent spark path for rapid gas ignition.
• High-Temperature Durability: Engineered with premium refractory materials to withstand localized burner heat without cracking.
• Reliable Flame Sensing: Provides low-impedance feedback for flame monitoring systems to minimize downtime.
• Standard Thread Mounting: Designed for direct replacement into existing burner brackets for fast field service.

What causes this electrode to fail in high-output burners?

Failure typically stems from ceramic insulation cracking or excessive soot accumulation on the probes, which results in spark tracking or a weak flame signal. Regular inspection of the porcelain body is recommended.

Can the probe length be modified for custom burner applications?

Altering the factory dimensions can compromise the spark gap and signal strength. This assembly should be used in applications matching the Fenwal 22 series specifications to ensure board compatibility.

How do I verify if the flame signal is adequate via this electrode?

A technician should measure the DC microamps (µA) in series with the sensing lead; many Fenwal controls require a minimum stable signal to maintain gas valve energization.

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.