problem

skyhantt · Posts: 2

Program Version,EnergyPlusDLL 4.0.0.024, 2010/11/9 10:31,IDD_Version 4.0.0.024
** Warning ** Timestep: Requested number (2) is less than the suggested minimum of 4.
** ~~~ ** Please see entry for Timestep in Input/Output Reference for discussion of considerations.
** Warning ** For a zone sizing run, there must be at least 1 Sizing:Zone input object. SimulationControl Zone Sizing option ignored.
** Warning ** Site:GroundTemperature:BuildingSurface: Some values fall outside the range of 15-25C.
** ~~~ ** These values may be inappropriate. Please consult the Input Output Reference for more details.
** Warning ** CalcSurfaceCentroid: 31 Surfaces have the Z coordinate < 0.
** ~~~ ** ...in any calculations, Wind Speed will be 0.0 for these surfaces.
** ~~~ ** ...in any calculations, Outside temperatures will be the outside temperature + 9.750E-003 for these surfaces.
** ~~~ ** ...that is, these surfaces will have conditions as though at ground level.
** Warning ** Output:Meter: invalid Name="ELECTRIC EQUIPMENT#16026#GENERALLIGHTS*" - not found.
** Warning ** Output:Meter: invalid Name="ELECTRIC EQUIPMENT#16222#GENERALLIGHTS*" - not found.
** Warning ** Output:Meter: invalid Name="ELECTRIC EQUIPMENT#16350#GENERALLIGHTS*" - not found.
************* 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.
** Severe ** Temperature (low) out of bounds (-100.99) for surface=F_16350_4_0_10331
** Fatal ** EnergyPlus has exited due to the reason stated above
...Summary of Errors that led to program termination:
..... Reference severe error count=1
..... Last severe error=Temperature (low) out of bounds (-100.99) for surface=F_16350_4_0_10331
*************
************* ===== Recurring Error Summary =====
************* The following recurring error messages occurred.
*************
************* ** Severe ** Temperature (low) out of bounds for surface=F_16350_4_0_10331
************* ** ~~~ ** This error occurred 1 times.
************* ** ~~~ ** Max=-100.98581 C Min=-100.98581 C
*************
*************
************* ===== Final Error Summary =====
************* The following error categories occurred. Consider correcting or noting.
************* Temperature (low) out of bounds
************* ..A temperature out of bounds problem can be caused by several things. The user should check:
************* ..1) the weather environment (including the horizontal IR from sky)
************* ..2) the level of interal gains with respect to the zone
************* ..3) the thermal properties of their materials. And other things.
************* ..A common cause is a building with no or little thermal mass - all materials with Material:NoMassdefinitions.
*************
************* EnergyPlus Terminated--Fatal Error Detected. 7 Warning; 1 Severe Errors; Elapsed Time=00hr 04min 26.43sec
i am really confused of the problems above.so,please help me to solve it.I will wait for your reply.
thanks

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