Re: [EnergyPlus_Support] Re: VolumeFlowperRatedTotCap out of range

["Michael J. Witte" <mjwitte@xxxxxxxx>]

I am not sure what the problem is.  I have forwarded this to our heat pump 
experts.

Mike


On 24 Mar 2006 at 3:22, eric_zhou1223 wrote:

> Hi
> 
> This error has been fixed. I did overlooked the branch air volume.
> 
> Now I put a HP per zone ,and found that the indoor temperature set 
> point can not be met in summer.  It can be satisfied by manually 
> enlarging the cooling capacity of DX coils. Could anyone give me 
> directions what is happening about the autosizing?
> 
> Also, similar situation happens to the supplemental heating coils.
> I have reuploaded the file onto the website.
> 
> Kind regards
> Eric 
> 
> 
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "eric_zhou1223" 
> <eric_zhou1223@...> wrote:
> >
> > Hi
> > 
> > I am trying to enlarge the Unitary Heat Pump's cooling capacity 
> > without touching any other things ,when I learn an example file 
> > HeatPumpAuto.
> > 
> > I replaced the Capacity field using 33500w (originally "autosize", 
> > the value in the eio file is 25885w). Then thousands of error 
> jumped 
> > out saying:
> > 
> >  ** Warning ** COIL:DX:COOLINGBYPASSFACTOREMPIRICAL "HEAT PUMP 
> > ACDXCOIL 1" - Air volume flow rate per watt of rated total cooling 
> > capacity is out of range.
> >    **   ~~~   **  ...VolumeFlowperRatedTotCap=2.334E-05 Occurrence 
> > info=CHICAGO ILLINOIS SUMMER, 07/21 09:00 - 09:10
> >    **   ~~~   ** Expected range for 
> VolumeFlowperRatedTotalCapacity=
> > [3.3560E-05--6.7130E-05]
> > 
> >  *************  ** Warning ** 
> > COIL:DX:COOLINGBYPASSFACTOREMPIRICAL "HEAT PUMP ACDXCOIL 1" - Air 
> > volume flow rate per watt of rated total cooling
> >    *************  **   ~~~   **   This error occurred 82155 times.
> > 
> > I have filled out the fields using suitable air flow rates and 
> > cooling capacity, with their ratios in the aboved range, but the 
> > errors kept there still.
> > 
> > Would you have a check and shed a light on this issue? Thank you
> > 
> > I would upload the file to the problem area.
> > 
> > Eric
> >
> 
> 
> 
> 
> 
> 
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> 
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> 
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>  
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> 
> 
> 
>  
> 
> 
> 
> 






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