[EnergyPlus_Support] Re: PIU fans (PFP Boxes) always have identical primary and secondary max flow rates!

["hisham.rashrash" <hisham.rashrash@xxxxxxxxx>]

Hi, thanks for replying.
Is there no way to solve this issue? because I need to know the Secondary Supply Air Maximum Flow Rate, and I don't understand why it is wrong in E+ output and always equal to primary air flow.

Thank you very much,
Hisham.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "jeannieboef@..." <jeannieboef@...> wrote:
>
> Others are experiencing problems with the PIUs.
> 
> Mit freundlichen Grü�en- Sent from my iPhone (excuse the brevity)
> 
> i. A.
> Jean Marais
> b.i.g. bechtold
> Tel.   +49 30 6706662-23
> 
> On 08.10.2013, at 16:42, "hisham.rashrash" <hisham.rashrash@...>  
> wrote:
> 
> > Hi,
> > I have been into this problem, no matter how I define the  
> > HVACTemplate:Zone:VAV:FanPowered object, whether to have autosize  
> > for everything, to be series, parallel, or having a well defined  
> > number like 0.274m3/s for Secondary Supply Air Maximum Flow Rate  
> > with the Primary Supply Air Maximum Flow Rate set to autosize and  
> > Primary Supply Air Minimum Flow Fraction set to autosize too. I  
> > always have the Primary and Secondary Maximum Flow Rates to be  
> > identical in the output file, even if the Primary Supply Air Minimum  
> > Flow Fraction was autosized to zero or any other value like in this  
> > picture:
> >
> > Click here to see image
> >
> > How can I set the correct settings to have ASHRAE 90.1-2007 section  
> > 3.1.3.14 requirements regarding flow and power to be met?
> > Please advise.
> >
> > Best regards,
> > Hisham
> >
>



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