How to open a fire damper?


  #1  
Old 01-09-09, 09:51 PM
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How to open a fire damper?

We have almost no air flow in all the registers.
After cutting a hole in the duct between the ceiling and the furnace, I noticed the fire damper was closed. I tried to push in in either directions, but it won't open. How can I open it?
Why the damper was closed by itself? I did see a little handle
at one side, but pulling or pushing it won't help.

Thanks in advance.
 
  #2  
Old 01-10-09, 05:36 PM
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The damper looks like a folded door that completed slided closed over the main hole leading to different rooms. Not sure if I can remove the whole thing if I could not slide it open.
I notice there are just 2 screws holding the sides.
 
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Old 01-11-09, 06:41 AM
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1st never have seen a fire damper in residential. 2nd these can be a $%@&^*$@&%^ to open! I had one in a hospital that closed and it took 4 hours for three of us to open. Most likely you will need to pull it straight up to open it. But I would not do it until you have a new fusible link. 165 degree is standard on most duct systems. Once you get the door open you will have to hold it in place and use your other hand to put the link on. YOU WILL HAVE LOTS OF FUN!!!!
 
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Old 01-11-09, 06:23 PM
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Thumbs up

Thank you, airman. I tried to push it up, but it still could not open. the whole thing lies hotizontally over the ceiling. I do not see fusible linke yet. How it looks like? Does HD sell it?
Any hyperlink? Thanks again.
 
  #5  
Old 01-11-09, 07:41 PM
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I would not think that HD sells them. You will have to go to a HVAC company to get them. Models A & B Fusible Links
 
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Old 01-11-09, 08:15 PM
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Thanks again. I would check that.
 
  #7  
Old 01-12-09, 02:28 PM
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I managed to push the whole damper up. But unable to locate the position of the fusible link. I will probably end up by calling in a plumber.
Thank you.
 
  #8  
Old 01-12-09, 03:05 PM
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the link should be in the center! Should have two metal tabs on each side of the damper to hook the link to. Id call a HVAC company. I don't know to many plumbers that no duct work.
 
 

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