Rheem-Ruud 62-22578-01 HSI Module 30067439-890 Common Questions Is the White-Rodgers

Common Questions Is the White-Rodgers 755-1 a direct replacement for the 755-11

preventing changes in pressure drop across the valve from influencing system operation—essential for equipment facing widely varying ambient conditions

Is the rotation of this wheel reversible

Whether you are performing a standing pilot retrofit or replacing a damaged pilot assembly line

What is the difference between the K-370 and the D25519

Rheem-Ruud 62-22578-01 HSI Module 30067439-890 Common Questions Is the White-RodgersThe Rheem Ruud 62 22578 01 HSI Module is a critical 120 24V electronic hot surface ignition control designed for precise burner sequencing in residential HVAC units. This OEM certified module manages the 34sPP (34 second pre purge) cycle to clear the combustion chamber of residual gases before initiating the 8sTFI (8 second trial for ignition) window. As a veteran grade HVAC ignition control board, it utilizes a dual voltage architecture (120V for the