Fenwal 35-655005-023 Control Board R-407A the R44957-001 is the official

the R44957-001 is the official manufacturer replacement

Durable Construction: High-grade silicon carbide element designed to withstand frequent cycling in commercial applications

resulting in water backing up into the inducer or pressure switches

When you're upgrading an existing oil-fired boiler or furnace

Fenwal 35-655005-023 Control Board R-407A the R44957-001 is the officialThe Fenwal 35 655005 023 Control Board is a high performance direct spark ignition control designed for 24VAC gas fired appliances. Engineered with a microprocessor based circuit, this module provides precise timing for trial for ignition (TFI) sequences, ensuring reliable burner operation in commercial and industrial HVACR environments. This specific model features a 7 second ignition trial and a 30 second inter purge period, optimized for systems