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[EnergyPlus_Support] Phase Change Materials


Hello All!

I'm developping a simulation model to study the use of PCM. 
As a first approach I' ve took a look on the 
           
      CondFD1ZonePurchAirAutoSizeWithPCM.IDF 

example file. By running the file, I've got the following error:

        ** Severe  ** Temperature out of bounds (NAN) for surface =
ZN001:WALL001

By serching the support mailing list, I saw that this kind  of
situation has already happened although the way to solve was not
presented.

The NAN error is related to a division by zero... but I did'n t make
any change to the original file...

Could somebody help me on this 

Thanks in advance for your help
Best Regards

Filipe Madureira

Entire error message:

Program Version,EnergyPlus 2.0.0.025, 21/08/2007 18:17,IDD_Version
2.0.0.025
   ************* Beginning Zone Sizing Calculations
   ** Warning ** Weather file location will be used rather than
entered Location object.
   **   ~~~   ** ..Location object=CHICAGO_IL_USA_WMO_725300
   **   ~~~   ** ..Weather File Location=LISBOA PRT INETI DATA WMO#=085360
   ** Severe  ** Temperature out of bounds (NAN) for surface=ZN001:WALL001
   **   ~~~   ** in Zone=RESISTIVE ZONE
   **   ~~~   **  Occurrence info=CHICAGO_IL_USA ANNUAL HEATING 99%
DESIGN CONDITIONS DB, 01/21 00:00 - 00:00
   **   ~~~   ** A temperature out of bounds problem can be caused by
several things.  The user
   **   ~~~   ** should check the weather environment, the level of
internal gains with respect
   **   ~~~   ** to the zone, and the thermal properties of their
materials among other things.
   **   ~~~   ** A common cause is a building with no thermal mass --
all materials with
   **   ~~~   ** Regular-R definitions.
   **  Fatal  ** EnergyPlus has exited due to the reason stated above
   ************* Fatal error -- final processing.  More error messages
may appear.
   ************* Testing Individual Branch Integrity
   ************* All Branches passed integrity testing
   ************* Testing Individual Supply Air Path Integrity
   ************* All Supply Air Paths passed integrity testing
   ************* Testing Individual Return Air Path Integrity
   ************* All Return Air Paths passed integrity testing
   ************* No node connection errors were found.
   ************* EnergyPlus Terminated--Fatal Error Detected. 1
Warning; 1 Severe Errors; Elapsed Time=00hr 00min  1.95sec





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