Maxon 125SMA11AA11BB21A0 Gas Valve THPU32HP7Y Confirm the damper shaft diameter

Confirm the damper shaft diameter

the R40154B010 (functionally identical to 40154B-010) prevents the heat exchanger from reaching critical temperatures by interrupting the burner circuit when airflow is restricted

This transition is specifically designed for 90+ RPJ3 series systems

Always check for a grounded "C" wire

Always confirm the specific flow direction and internal check-valve requirements for heat pump applications before installation

Maxon 125SMA11AA11BB21A0 Gas Valve THPU32HP7Y Confirm the damper shaft diameterThe Maxon 125SMA11AA11BB21A0 is a heavy duty, 1 1 4" industrial gas shut off valve designed for high reliability combustion systems. This electromechanical safety valve features a robust cast iron body and a 2 way, normally closed configuration, ensuring instantaneous fuel shut off in less than one second upon power interruption. Engineered with Buna N body O rings and bumpers, the 125SMA series is optimized for general purpose gas service, providing