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Re: Follow directions if possible

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Posted by Ruth on July 31, 2006 at 12:46:28:

In Reply to: Re: Follow directions if possible posted by HeatPro on July 31, 2006 at 11:17:32:

Thanks HeatPro. I checked with this page. I think the main difference is that they always place the circulator outside of the boiler. The endurance
boiler has a built-in circulator (located inside the boiler) which pumps water away from the boiler to supply. Which is also pumping away from the expansion tank if the tank is on return piping. On the other hand, if we put the expansion tank on supply, then the water will be "pumped away" from the boiler and get INTO the expansion tank, and then supply. Which may actually cause negative pressure because there is no buffer before the pump. Am I right?

: Here is an explanation of 'pump away' and why:

: http://www.heatpro.us/designtree/

: Create a Positive Pressure
: Prevent Negative Pressure

: NO!!! 'pump-away means pumping away from the boiler and the expansion tank ON THE SUPPLY.

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Re: Follow directions if possible HeatPro 13:03:00 7/31/2006 (16)
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- Re: Follow directions if possible Ruth 15:33:20 8/04/2006 (1)
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- Re: Follow directions if possible Ruth 14:10:11 7/31/2006 (11)
  - Re: Follow directions if possible HeatPro 16:34:40 7/31/2006 (10)
    - New update and question on sub loop Ruth 15:38:52 8/04/2006 (9)
      - Re: New update and question on sub loop HeatPro 20:55:50 8/04/2006 (8)
        
        Re: New update and question on sub loop Ruth 10:01:42 8/07/2006 (7)
        
        Re: New update and question on sub loop HeatPro 12:11:36 8/07/2006 (6)
        
        Re: New update and question on sub loop HeatPro 12:13:37 8/07/2006 (5)
        
        Re: New update and question on sub loop Ruth 14:32:48 8/07/2006 (4)
        
        Re: New update and question on sub loop HeatPro 14:46:34 8/07/2006 (0)
        
        Re: New update and question on sub loop Ruth 14:42:50 8/07/2006 (2)
        
        Re: New update and question on sub loop HeatPro 14:51:06 8/07/2006 (0)
        
        Re: New update and question on sub loop HeatPro 14:49:41 8/07/2006 (0)

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: Thanks HeatPro. I checked with this page. I think the main difference is that they always place the circulator outside of the boiler. The endurance : boiler has a built-in circulator (located inside the boiler) which pumps water away from the boiler to supply. Which is also pumping away from the expansion tank if the tank is on return piping. On the other hand, if we put the expansion tank on supply, then the water will be "pumped away" from the boiler and get INTO the expansion tank, and then supply. Which may actually cause negative pressure because there is no buffer before the pump. Am I right? : : Here is an explanation of 'pump away' and why: : : http://www.heatpro.us/designtree/ : : Create a Positive Pressure : : Prevent Negative Pressure : : NO!!! 'pump-away means pumping away from the boiler and the expansion tank ON THE SUPPLY.

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