Siemens Building Technology GMA221.1U Actuator 322056-301 ensuring internal components match original

ensuring internal components match original equipment manufacturer (OEM) flow rates and static pressure requirements

Using an authentic HVAC expansion orifice prevents liquid slugging and evaporator freeze-ups

enhancing the structural integrity and longevity of the tube

Ensure the system is thoroughly evacuated and the filter drier is replaced during installation

Siemens Building Technology GMA221.1U Actuator 322056-301 ensuring internal components match originalThe Siemens GMA221. 1U is a high performance OpenAir damper actuator engineered for reliable 2 position (on off) control in critical HVAC environments. Operating on a 120 VAC power supply, this direct coupled unit delivers a robust 62 lb in torque (7 Nm), making it the primary choice for managing return air, mixed air, and exhaust dampers in both constant and variable air volume (VAV) systems. The integrated spring return fail safe mechanism ensures