Key Benefits Automatic Changeover Logic: Seamlessly switches fan coil operations between heating and cooling based on supply water temperature

maintaining signal integrity is critical

System Protection: Precisely calibrated to open at 160°F

10" WC specification for this specific blower assembly

Efficient Performance: Maintains a consistent 1050RPM to provide stable airflow across evaporator coils

Siemens Building Technology GCA121.1P Actuator L99H008 Key Benefits Automatic Changeover Logic:The Siemens GCA121. 1P Actuator is a heavy duty spring return damper actuator designed for critical fail safe applications in commercial HVACR systems. Delivering 160 lb in torque, this OpenAir electronic actuator provides reliable 2 position (On Off) control for return air, mixed air, and exhaust dampers. Engineered with brushless DC motor technology and integrated stall protection, it ensures long term operational stability and prevents motor