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Posted by HeatPro on August 07, 2006 at 12:11:36:
In Reply to: Re: New update and question on sub loop posted by Ruth on August 07, 2006 at 10:01:42:
: Thanks HeatPro. The bypass I was talking about is the '1-1/4" bypass' in figure 22 in the endurance installation manual. Is the bypass needed only because of the external circulator?
+++ No. It is part of the boiler subloop to:
The boiler subloop assures that no matter what zone is closed, The flow through the boiler is the same, as explained in the site reference in the post above. The circulator internal to the boiler sends the water around its piping loop which includes the 1-1/4 bypass part of the system main. The heated boiler water blends with the water passing by that point as the system water goes to the radiation.
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