[EnergyPlus_Support] Re: DX Coil Warnings (again)

["luke_dorna" <luke.dorna@xxxxxxxxx>]

I received these warnings when I was submitting to GBCI last year. I acknowledged them, and provided an explanation, as you did below. The reviewer didn't complain. 

However, I will note that there is significant variation between reviewers, so there is no guarantee you will get off so easily. 

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Jim Dirkes  wrote:
>
> Hmmm. Formatting didn't work very well the first time
> 
> James V Dirkes II, PE, BEMP, LEED AP
> www.buildingperformanceteam.com 
> Energy Analysis, Commissioning & Training Services
> 1631 Acacia Drive, Grand Rapids, MI 49504 USA
> 616 450 8653
> 
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of jvd2pe
> Sent: Monday, February 04, 2013 8:41 PM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] DX Coil Warnings (again)
> 
> 
> 
> Dear Forum, Every time I model a DX coil system with a high percentage
> of outdoor air, I receive a LOT of warnings like those shown below. As
> I understand them from discussion with the Help Desk, my part load
> capacity curves are causing the coil discharge air to exceed saturation
> (100% relative humidity). This can be corrected by what appears to be
> a LOT of effort to tweak the curves - and I cannot justify expending
> that effort. Have any of you encountered the same problem? Have you
> found a simple solution? I can live with the warnings because I don't
> think they adversely affect the results, but it is possible that the
> GBCI reviewers will think I'm crazy or incompetent..... (Maybe they
> already think that!)
> 
>    *************  ** Warning ** Calculated Relative Humidity out of range (PsyRhFnTdbWPb)
> 
>    *************  **   ~~~   **   This error occurred 1274130 total times;
> 
>    *************  **   ~~~   **   during Warmup 0 times;
> 
>    *************  **   ~~~   **   during Sizing 0 times.
> 
>    *************  **   ~~~   **   Max=121.085916 %  Min=101.000565 %
> 
>    *************
> 
>    *************  ** Warning ** Enthalpy out of range (PsyTsatFnHPb)
> 
>    *************  **   ~~~   **   This error occurred 253756 total times;
> 
>    *************  **   ~~~   **   during Warmup 0 times;
> 
>    *************  **   ~~~   **   during Sizing 0 times.
> 
>    *************  **   ~~~   **   Max=-42400.082086 J/kg  Min=-65992.31022 J/kg
>




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