the Emerson Alco 052955 (XB-1019RC1B) Power Element is the industry standard for restoring precise superheat control

Corrosion Resistance: Stainless steel ball and stem prevent premature wear in high-duty cycle environments

Key Benefits for Technicians: Constant Differential Performance: Maintains a fixed 13°F swing to prevent short-cycling and ensure stable temperature gradients

Engineering for heavy-duty performance

providing reliable power handling for inductive and resistive HVAC loads

Lochinvar & A.O. Smith 100109891 Gas Valve 321702-401 the Emerson Alco 052955 (XB-1019RC1B)The Lochinvar & A. O. Smith 100109891 Gas Valve is a critical OEM replacement part designed for high recovery commercial water heaters and boilers. Engineered for precision, this 24V natural gas valve operates with a 3. 5" WC manifold pressure to ensure stable combustion and optimal thermal efficiency. Built with a rugged 3 4" NPT connection, it is a direct substitute for legacy part numbers such as 9004497205 and 192015, providing a reliable solution