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Re: Follow directions if possible

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Posted by Ruth on July 31, 2006 at 10:42:13:

In Reply to: Re: Follow directions if possible posted by HeatPro on July 30, 2006 at 23:35:59:

Thanks for your patience HeatPro :)). I am just a homeowner without any knowledge on boilers before. But now I am forced to learn because we had a very bad luck picking the installer. He did the installation without telling me any details. The boiler keeps having problems after the installation and we have already found several installation mistakes. The worst thing is that I always need to provide very solid evidence and reasoning to prove his mistake, otherwise he would try everything to hide his mistake instead of correcting it. For the high pressure (over 70PSI) in the system, he even told me just to ignore it because "the reading of pressure gauge is not accurate".

For the location of the expansion tank, he told me that they have installed several boilers with expansion tank on return and they are all running well (I am not sure if it is true or not since sometimes just lie to me). He certainly doesn't want to re-pipe the system and is trying to convince me that everything is OK.

Back to the 'pump-away' problem, suppose we use only the built in circulator in the boiler.Isn't it forming a 'pump-away' loop? My understanding for the 'pump-away' is that the pump should draw water from the expansion tank, is it right? thanks.

: MAIN POINT OF KNOWLEDGE: The 'pump-away' rule NEVER puts the expansion tank on return piping, so the basic requirement is to know what 'pump-away' means.

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