×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

FM200 and HVAC system dampers

FM200 and HVAC system dampers

FM200 and HVAC system dampers

(OP)
A variety of steps are always taken to seal a room where there is a clean agent suppression system like FM200 installed. One action is to put automatic shut-off dampers in HVAC ducts coming into or out of the room.

Are these requirements actually contained in any codes? I do not find them specifically addressed in NFPA 2001.

I have been told that a UL listed fire/smoke damper is required for the HVAC system shut-off dampers. It doesn't seem like they would be required for this application unless mandated by code somewhere, and interlocking them to the FM system discharge panel would be more difficult than a tight closing control damper.

Thanks for any input

Chaz

RE: FM200 and HVAC system dampers

More than likely the code you are looking for is the mechanical code sections covering ducts that pass through fire rated walls.  In the International Codes these are IMC Section 607 and IBC 907.10 & 907.11.  Essentially the FM200 system doesn't trigger the dampers it's the duct penetration of the rated wall.

RE: FM200 and HVAC system dampers

A room using FM200 or similar system is required to pass a pressure test to ensure the room isn't too leaky for the system to work properly.

A room with open ducts could be considered 'too leaky' for the system.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources