The wrong voltage is connected to a fire/smoke damper actuator
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.
The FSD actuator at [tag/location] appears to have been hit with the wrong voltage. I checked the label/submittal. Do you want electrical/controls to correct power before we install a replacement actuator?
Watch out
Do not keep applying power to a suspected miswired life-safety actuator.
Check
Stop power/testing if smoke, smell, hum, or no movement occurs after wiring.
Check actuator voltage label and project controls diagram.
Confirm electrical/controls source voltage before mounting a replacement.
Use factory-approved replacement actuator and hardware.
Retest damper operation with life-safety/controls commissioning.
Steps
Stop power/testing if smoke, smell, hum, or no movement occurs after wiring.
Check actuator voltage label and project controls diagram.
Confirm electrical/controls source voltage before mounting a replacement.
Use factory-approved replacement actuator and hardware.
Retest damper operation with life-safety/controls commissioning.
Say this to your foreman
The FSD actuator at [tag/location] appears to have been hit with the wrong voltage. I checked the label/submittal. Do you want electrical/controls to correct power before we install a replacement actuator?