Rheem-Ruud 62-22578-01 HSI Module 30067439-890 always verify the orifice size

always verify the orifice size against the equipment nameplate data before installation

while the 0

Industrial-grade diaphragm design withstands the extreme temperature fluctuations found within the furnace cabinet

or fan pressure verification

Utilizing a single-pole double-throw (SPDT) configuration

Rheem-Ruud 62-22578-01 HSI Module 30067439-890 always verify the orifice sizeThe 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