Siemens Building Technology GCA121.1U Actuator 321042-401 this Johnson Controls actuator is

this Johnson Controls actuator is the industry standard for maintaining consistent damper actuator performance in light to medium commercial applications

Its integration into automated burner systems enhances safety and operational efficiency

vertical mounting with the pressure connections facing downward is recommended to prevent moisture and sediment accumulation in the sensor housing

Designed with a 3

Failure is typically caused by long-term exposure to thermal cycling or excessive moisture in the combustion area

Siemens Building Technology GCA121.1U Actuator 321042-401 this Johnson Controls actuator isThe Siemens GCA121. 1U is a high performance spring return rotary damper actuator designed for the heavy duty demands of commercial HVAC systems. Delivering a robust 142 lb in torque (rated up to 160 lb in in specific applications), this 24VAC damper actuator provides reliable on off 2 position control for return air, exhaust, and face and bypass dampers. Built with brushless DC motor technology, the unit features integrated stall protection to