Built for heavy-duty industrial and commercial applications

this unit serves as a direct professional-grade replacement for high-amperage switching requirements

providing full compatibility with SMART SYSTEM control platforms found in modern high-efficiency hydronic systems

Common Questions What does a red flashing light on the Lennox 49W66 indicate

which preserves the life of the igniter and gas valve

Reznor 100526 Retrofit Kit Freon Built for heavy-duty industrial andOptimizing older heating infrastructure requires reliable ignition components that eliminate the inconsistencies of standing pilot systems. The Reznor 100526 Spark Ignition Retrofit Kit is engineered for a direct conversion of Reznor F and B series unit heaters, specifically within the 200 to 250 MBH size range. This OEM Reznor ignition kit replaces outdated pilot lights with a 24V intermittent spark ignition module, ensuring the burner only fires