[EnergyPlus_Support] Re: ** Fatal ** Air Primary Loop VAV SYS 1 has no air flow

["sm278424" <shaunmartin@xxxxxxx>]

Thanks Mike,

Actually I had autosized everything, but the problem apparently had 
its start when I commented out one of my DesignDay statements in 
order to get the simulation to run a bit faster. 

Because of the straightforwardness of this part of the input file, I 
didn't read the documentation.  The E+ programmers might want to 
issue a warning if something seems amiss.

Shaun


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte" 
<mjwitte@g...> wrote:
> My apologies for the delayed response.
> 
> This indicates that the air loop has been sized to zero flow.  
First, check 
> your AIR PRIMARY LOOP object.  Is the "Primary air design 
volumetric flow rate" 
> field set to zero?  It must have a value >0 or be set to Autosize.  
If that is 
> not the problem, then check the autosizing reports in the eio 
file.  Are the 
> zone air flow rates being sized to zero?  If so, there may be 
something wrong 
> with the sizing objects or the thermostat controls.
> 
> Mike
> 
> 
> On 15 Jul 2004, at 19:51, sm278424 wrote:
> 
> > Hi, another question/problem, I know this has something to do 
with 
> > nodes/branches but I can't seem to spot it.
> > Any ideas as to where I should look?
> > Thanks
> > Shaun
> > 
> > 
> > 
> > 
> > The primary EnergyPlus web site is found at:
> > http://www.energyplus.gov
> > 
> > The group web site is:
> > http://groups.yahoo.com/group/EnergyPlus_Support/
> > 
> > Attachments are not allowed -- please post any files to the 
appropriate folder
> > in the Files area of the Support Web Site.
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > 
> > 
> > 
> 
> 
> 
> ========================================================
> Michael J. Witte, GARD Analytics, Inc.
> EnergyPlus Testing and Support      
> EnergyPlus-Support@g...



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