Fenwal 35-705601-005 Control

The Fenwal 35-705601-005 is a professional-grade 120V Direct Spark Ignition (DSI) control designed for precise burner management in gas-fired equipment. This microprocessor-based module functions as the direct cross-reference for the legacy 05-142401-005, offering significant upgrades in timing accuracy and diagnostic transparency. Built for heavy-duty HVACR applications, it provides a 10-second Trial for Ignition (TFI) with no pre-purge, making it ideal for systems requiring immediate spark delivery upon a call for heat. The 35-705601-005 utilizes remote flame sensing and is compatible with both natural gas and LP configurations. Its robust design features on-board diagnostics with a multi-code LED output, allowing technicians to rapidly identify faults like ignition lockout or flame signal loss. With a wide operating temperature range of -40°F to 175°F and a polarity-insensitive circuit, this 120V ignition module minimizes nuisance lockouts and simplifies field installation for contractors handling commercial cooking, infrared heaters, or crop drying systems.

• Direct Cross-Reference: Seamlessly replaces the older 05-142401-005 analog control without extensive rewiring.
• Precise Microprocessor Timing: Ensures repeatable 10-second TFI and 1-hour automatic reset sequences for maximum system uptime.
• Advanced Diagnostics: Built-in LED provides instant error codes to streamline troubleshooting of gas valves and flame sensors.
• Remote Flame Sensing: Dedicated circuitry for remote flame sense ensures reliable combustion monitoring in demanding burner configurations.
• Installation Flexibility: Polarity-insensitive 120 VAC input reduces the risk of miswiring during field replacements.

Is the Fenwal 35-705601-005 compatible with LP gas?
Yes, this control is designed to manage 120 VAC gas valves for both Liquid Propane (LP) and Natural Gas applications.

How do I troubleshoot a lockout on this ignition module?
The on-board LED flashes specific codes to indicate faults. A steady on or specific flash pattern identifies issues such as "No Flame Detected" or "Internal Circuitry Failure."

Can I use this to replace an 05-14 series control?
Yes, the 35-70 series is the designated modern replacement for the 05-14 series. Ensure you verify the TFI timing and sensing type (remote vs. local) match your existing spec.

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.