[Equest-users] Pump flow vs. Loop Flow

[Maudud Quazi]

Omar,

I believe that despite of the pump capacity that you put in, the software
uses a flow that the building needs in order to provide enough heating to
the building load.  As a result, the PV-A is giving is different numbers
that what you have manually put in.  I am not 100% sure if my answer is
right, therefore if someone else can also share something, that would be
great.

Regards,

Hassan




On Fri, Oct 7, 2011 at 1:03 PM, Omar Katanani <omar at ecoconsulting.net>wrote:

>  Dear all,
>
>
>
> I just noticed the following while examining my PV-A Report:
>
>
>
> I have 2 boilers connected to the same hot water loop, each having a pump
> attached to it.
>
> Attached to the primary HW loop is a Secondary hot water loop with its
> secondary pump attached to it. The screenshot “Heating Strategy.jpg”
> explains this.
>
>
>
> Now, I assigned a loop flow of 200gpm for each boiler pumps, and 200gpm for
> the secondary HW pump. The loop recirculation flows for the Primary AND
> secondary HW loops is 200gpm also for each.
>
>
>
> The issue is that, in my PV-A Report, I see:
>
> Ø       200gpm for the 3 pumps (as expected), BUT
>
> Ø       562gpm for Primary HW Loop
>
> Ø       362gpm for Secondary HW Loop
>
>
>
> Does anyone have an idea of why the last 2 numbers changed, even though I
> manually set these to 200gpm in the program?
>
>
>
> The issue is that I need to simply stuff for the LEED Reviewer, because
> they’re being really annoying in terms of auditing every single decimal
> point!
>
>
>
> Many thanks for your help.
>
>
>
> Best regards,
>
> Omar
>
>
>
> *Please note that EcoConsulting is holding a new series of eco-seminars on
> Green Building & LEED GA Training in November. *
>
> *More information available at:*
>
> *http://ecoconsulting.net/www/Seminar_Series_Lebanon_Nov11.htm  *
>
>
>
> ___________________________
>
> Omar Katanani
> Sustainable Design Engineer
>
> Email: omar at ecoconsulting.net
>
>
>
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>
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>
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>
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>
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>
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>
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