Lochinvar & A.O. Smith 100173792 Arm Assembly 321894-709 the D25403 ensures seamless integration

the D25403 ensures seamless integration and technical compliance with existing infrastructure

and 1/20 HP

While many SmartValve bodies can be converted

Common Questions: Is the 56W19 compatible with 56W1901

including the gas valve

Lochinvar & A.O. Smith 100173792 Arm Assembly 321894-709 the D25403 ensures seamless integrationThe Lochinvar & A. O. Smith 100173792 Arm Assembly is a critical OEM component designed for high efficiency burner management in commercial and residential gas fired systems. Engineered for precision and thermal stability, this gas air arm assembly ensures the correct orientation and alignment of the burner interface, which is essential for maintaining stoichiometric combustion and maximizing heat transfer. Built to withstand the harsh operating