wiring system requirements regarding motorized fire dampers

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mustafa

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Please advise (with code references) power supply /electrical connections requirements for motorized fire dampers.
Regards
 
mustafa said:
Please advise (with code references) power supply /electrical connections requirements for motorized fire dampers.
Regards
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I have a job that has some of these. I have never had to connect these before and I haven't looked into it yet, but am not aware of any special requirements. Power holds them open so there is no need for any backup power supply
 
If you Google "Mike holt fire damper" (try smoke damper too) you will find some past threads that should answer your questions.

Seems like dedicated circuiting not required, disconnect not required. I don't see any reason to provide a different wiring method than for any other widget.

Might want to find out if they need a connection to the FA system or to kill the air handler if they close/fail.
 
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