Fenwal 35-630501-007 Ignition Module

The Fenwal 35-630501-007 Ignition Module is a high-performance, microprocessor-based 24 VAC intermittent pilot ignition control engineered for precision timing and flame safety. Designed to replace standard spark-to-pilot units in gas-fired furnaces, unit heaters, and commercial water heaters, this module utilizes DETECT-A-FLAME® technology for reliable flame sensing and high-efficiency operation. This specific model features a 90-second Trial for Ignition (TFI) with a 0-second pre-purge, ensuring immediate spark delivery upon a call for heat via the TH/W terminal. The Noryl gray enclosure houses advanced diagnostic circuitry, including an on-board LED indicator that provides real-time fault codes for rapid field troubleshooting. With support for both local and remote flame sensing and a -40°F to 176°F temperature rating, this Fenwal ignition module maintains system integrity under demanding mechanical room conditions. The Fenwal 35-630501-007 is a direct solution for contractors requiring a rugged, universal ignition module replacement that eliminates the inefficiencies of standing pilots while providing automatic lockout safety.

• Advanced Diagnostics: Built-in diagnostic LED simplifies troubleshooting by identifying ignition lockout or flame signal loss without extra tools.
• Robust Safety Architecture: Features intermittent pilot control with a dedicated 90-second TFI and automated lockout to prevent gas buildup during failed ignition cycles.
• Application Versatility: Compatible with Natural, Propane, and Manufactured gas systems, mounting easily to a standard 4-inch junction box.
• Precision Flame Monitoring: High-sensitivity flame sensing (0.7 µA minimum) reduces nuisance trips and ensures reliable burner supervision.
• Environmental Resilience: The Noryl enclosure and wide operating temperature range protect the microprocessor circuit from moisture and thermal stress.

What is the reset procedure after an ignition lockout?
If the Fenwal 35-630501-007 enters lockout due to a failure to light, it can be manually reset by cycling the thermostat below the room temperature or removing the 24 VAC power input for at least 5 seconds.

How do I test the flame signal on this module?
Technicians can measure the flame current by using a standard microammeter connected in series with the flame sensor lead or by utilizing the on-board flame current test points for direct diagnostics during the burner cycle.

Can this module replace a standing pilot system?
Yes, this intermittent pilot ignition control is designed to upgrade older, less efficient standing pilot assemblies to a modern spark-to-pilot electronic sequence, significantly reducing gas consumption.

This item is not eligible for free shipping.

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.