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Subject: cast iron sectional
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sunrayfarmUser is Offline
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Posts:2
02/12/2010 9:41 AM  

I found this American Standard cast iron boiler at a local church and they were kind enough to let me play with it. I found soot under two of the five cast sections in just a small area. Does this indicate a leak? The rest of the boiler looks clean. Little flakes of carbon seem to be leaking out intermittently at the breeching when the ID fan is operating. Could this be a result of the sooting or is it indicitive of  another problem? The boiler is located in the basement in an interior room. The air supply is a 10" duct. Is this adequate?











ReedUser is Offline
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Posts:179
10/25/2010 7:27 AM  
I apologize for the long delay on this. I'm supposed to get emails notifying me when someone posts, but it didn't work this time.

Does there appear to be adequate supply air to the boiler room? These problems look like a lack of oxygen. There is no leak. If there was, water would be leaking out. An accumulation of soot just indicates incomplete combustion, which means not enough air. There is no way for me to determine whether or not a 10" duct is big enough. My assumption would be that it is. A more common problem is lack of air supply to the boiler room. There should be a big vent hole in the wall with louvers in it or even one with a supply fan. If there is a fan, is it working?

Reed
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Forums > Boiler Plant Training > Pictures! > cast iron sectional


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