HVAC Fire Damper Replacement/repair est.
I have a fire damper system that needs to be replaced/repaired. There are 6 dampers in a controlled boiler type room where the main hvac systems is housed. I need to get some explaination and also some expert advice on the pricing I have been quoted. Right now, to replace 3 dampers and inspect, replace the other 3 fusible links, I have an estimate of $Removed. the biggest issue is the tearing out the duct work and replacing it, Is this reasonable?
Last edited by HeyBob; 05-08-2008 at 10:58 PM.
Reason: Removed pricing
Read the rules, no pricing here
I can't help you with pricing , but every single fire damper situation that i have worked on always was installed with an access door for easy resetting/replacement of fusible link. i never saw a system that needed duct tearout to service the fd's. Cant u just cut in the abovementioned access doors & do the changeout????? regards , Jack
Sorry about putting the estimate in there. Basically the access panels are too small to get to the dampers to reset them or replace the fusible links. This install was done quite a while ago and looks to be bad work, but that is said and done. the duct work is sheet metal throughout. Question: Is it usual and regulated for a residential unit to have fire dampers?
I can only speak for my area about regulations(chicago & suburbs) that there are no such regs. For your problem with the fd's. I'd still consider getting a good tinnocker to open up your existing acc.panels ,replace the damper guts , and put in better accass doors , still cheaper than major ductwork , in my humble opinion. Jack
There are so many fire dampers installed incorrectly. Fire dampers should not be installed in the ductwork. They should be installed into a sleeve to which the ductwork is attached.
The idea being: If a fire occured and the ductwork collasped it would break away from the sleeve and leave the fire damper in place.
Here is how Ruskin say to do it. http://www.ruskin.com/catalog/servefile.aspx?id=1483
But all FD manufacturers reccommend the same. If the exisiting damper are not installed like this then maybe your contractor wants to do it right and that of course will cost you.
Doing things right costs less in the long run
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Is it resedential single dwelling, or a mulifamly unit.
If the access door is too small, I'd see if a bigger access could be installed.
Originally Posted by rojacman
Sorry to be blunt but. Ya Right
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