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making it a solid choice for maintaining system longevity and efficiency
requiring specific bracketry and linkage geometry for optimal feedback
preventing catastrophic failures such as ruptured chiller barrel tubes
this genuine HVAC replacement part is built to exacting standards to reduce vibration and extend the operational life of the condenser motor
Siemens Building Technology GMA221.1U Actuator 318518-761 making it a solid choiceThe 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
US$ 29.99
US$ 120.00
US$ 22.99