Siemens Building Technology 277-03170 Valve Assembly 321042-401 Engineered as an authentic Lennox

Engineered as an authentic Lennox replacement part

Simplified Wiring: Includes a built-in transformer to power internal circuitry and clear terminal block connections for faster field installation

Reliable Venting: Efficiently purges toxic combustion byproducts to maintain indoor air quality and safety

This geothermal circulation pump is vital for maintaining the EER and COP ratings of the overall system

Siemens Building Technology 277-03170 Valve Assembly 321042-401 Engineered as an authentic LennoxThe Siemens 277 03170 Valve Assembly is a heavy duty 2 way normally open globe valve engineered for precise modulating control in hydronic heating and cooling systems. Built with a rugged UNS CA 844 bronze body and durable brass trim, this 2 inch NPT assembly is rated for ANSI Class 250 applications, supporting a 40 Cv flow capacity with an equal percentage flow characteristic. This ensures linear heat output even during fluctuating pressure drops,