Siemens Building Technology 277-03170 Valve Assembly 321042-401 This geothermal circulation pump is

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

this electronically commutated motor utilizes advanced permanent magnet technology to reduce operating costs while maintaining consistent indoor comfort

this modulating actuator provides reliable service in air plenums and compact mechanical spaces

For technicians troubleshooting a "GV Relay Fail" or ignition lockout

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

Siemens Building Technology 277-03170 Valve Assembly 321042-401 This geothermal circulation pump isThe 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,