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Fire Damper or Motorized Damper?

thread184-488494

Fire Damper or Motorized Damper?

Fire Damper or Motorized Damper?

(OP)
Dear engineers,

Good day!

I have supply and return air duct passing thru a 2hr fire rated wall supplying server room protected with AFSS.

Do I only need fire dampers or motorized combination smoke/fire dampers integrated with the afss?
Thank you

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