Siemens Building Technology GCA126.1U Actuator mario turn the setpoint screw clockwise

turn the setpoint screw clockwise until the Status Open LED illuminates

F) and hot water environments

Repeated tripping typically indicates a direct short in the 24V control circuit

For technicians performing HVAC venting installation or retrofits

Siemens Building Technology GCA126.1U Actuator mario turn the setpoint screw clockwiseThe Siemens GCA126. 1U is a heavy duty OpenAir spring return actuator engineered for 2 position control in demanding HVAC systems. This 24VAC DC damper actuator delivers a robust 160 lb in torque (18 Nm), making it an industry standard for managing return air, exhaust, and face and bypass dampers in high capacity air handling units. Designed for fail safe reliability, the bi directional spring return ensures dampers reach a secure position during