TinnerFlow™3rd YearFSD / ControlsYELLOW · Check First
Damper actuators are voltage-specific. If the wrong voltage hits the actuator, stop testing, document it, replace only with approved parts, and have electrical/controls correct the power source.
A fire/smoke damper actuator is not universal. If line voltage is connected to a low-voltage actuator, the motor can burn out immediately.
Stop testing and do not keep cycling it. Verify the actuator label/submittal, control voltage, transformer, wiring responsibility, and replacement requirements. Life-safety actuators should be replaced and tested per manufacturer and commissioning procedure.
Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.