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Posted by HeatPro on August 07, 2006 at 12:13:37:
In Reply to: Re: New update and question on sub loop posted by HeatPro on August 07, 2006 at 12:11:36:
: At the end of page 14 of the the manual it does say that "The appliance incorporates its own circulating pump and bypass loop and is capable of providing flow through heating zones".
+++ If it were, then the factory engineers would not need to add that sometimes it is necessary to install another circulator upstream from the boiler on the boiler outlet. As explained in my page here in 'Prevent Banging' http://www.heatpro.us/:
quote: "This is not a problem if the controls can modulate the burner down fast enough to prevent overheating the boiler and the high limit is located in a place where the sensor will shut off the burner before the water sizzles and bangs; but that isn't always the situation."
Does it mean that its own bypass is already sufficient to "assures that no matter what zone is closed, The flow through the boiler is the same"?
+++ It might mean SOMETIMES, but as the instructions are not explicit, we may never know. Engineers are not required to be forthcoming and clear - just declare something because they said so.
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