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Posted by ralph blaine on January 11, 2004 at 17:42:34:
In Reply to: Re: Problem radiator posted by Harold hydronicnetwork.net on January 11, 2004 at 15:14:46:
Thanks Harold for the technical clarifications. I have checked the basement and found the following conditions:
1. The main steam feed line leading to this rad has a downward pitch which I assume is OK since it has a condensate return line at the end.
2. The branch steam line to the rad itself has a good upwards pitch - well above the specs you mentioned.
3. The vertical part of the condensate line at the end of this main steam line in the basement has been replaced with what looks like a one inch copper pipe. This one inch line comes out of an elbow of the main feed line and goes into what appears to be a two inch iron pipe which goes along the floor to the boiler. Can this one inch copper carry enough liquid?
4. The main steam line to this rad travels about 30 feet from the boiler to the branch feeding this rad. This branch is a foot or two before the vertical condensate line noted above. Nowhere along this 30 feet of main steam line is there a vent of any kind. From what you say it looks like there should be. Should one be added?
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