Fenwal 35-725913-000 Ignition Module

The Fenwal 35-725913-000 is an industrial-grade 120v Spark Ignition Module engineered for precise control of gas-fired appliances using Direct Spark Ignition (DSI) technology. This microprocessor-based control provides repeatable timing sequences for pre-purge, inter-purge, and ignition trials, ensuring consistent performance in high-demand environments like commercial cooking equipment, infrared burners, and agricultural heaters. Utilizing DETECT-A-FLAME® flame sensing, the module monitors flame current with a 1.0 μA minimum threshold, preventing hazardous conditions by instantly detecting flame failure. The Fenwal ignition control board is designed to manage 120 VAC gas valves and ignitors while operating reliably within a broad temperature range of -40°F to 175°F. Whether you are performing a field replacement or a new system integration, this module’s compact potted design offers enhanced protection against moisture and vibration, making it a staple for contractors maintaining natural gas or propane combustion systems.

• Advanced Microprocessor Logic: Delivers precise, automated timing sequences for ignition trials and purge cycles to maximize combustion efficiency.
• System Reliability: Built-in flame sensing technology reduces nuisance lockouts by accurately distinguishing between active flames and electrical noise.
• Universal Fuel Compatibility: Fully compatible with natural gas, LP (propane), and manufactured gas systems.
• Versatile Mounting: The compact footprint and high-temperature rating allow for integration into tight control cabinets across diverse commercial HVACR applications.
• Enhanced Durability: Potted construction provides superior resistance to environmental contaminants and mechanical stress on the job site.

• What are the power requirements for this Fenwal module? This unit operates on 120V AC (102-138 VAC) at 50/60 Hz, with a maximum gas valve relay rating of 1.5A.
• Can this replace my existing remote flame sensing setup? Yes, the Fenwal 35-725913-000 supports both local and remote flame sensing configurations, providing flexibility for various burner geometries.
• What does it mean if the system enters lockout? A lockout typically occurs if a flame is not sensed during the designated trial for ignition period or if a flame failure is detected. Resetting the module is achieved via the thermostat or by cycling the power off.

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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.