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Re: [EnergyPlus_Support] Convergence Error in .err file, but not in .eio file

You converged on the daily warmup max cooling load to 0.07 Watts with a 
tolerance of 0.04 Watts. Probably not much of an impact at all. If any, 
it would affect the equipment sizing so if the zone temperature is 
maintained, don't worry about it.

On 2/6/2012 4:51 PM, luke_dorna wrote:
> A project came back, so I resurrected a v5 model and converted up to v7.
>
> We now get a convergence error when I run the file, which we did not get before. The error says to check the .eio file for specifics on the convergence error. However, the error appears to be during the sizing period, which doesn't appear to show up in the .eio file.
>
> How much will convergence during the sizing period impact model outcomes?
>
> Any thoughts?
>
>    ** Severe  ** CheckWarmupConvergence: Loads Initialization, Zone="148 HONOR DIV LIBRARY" did not converge after 50 warmup days.
>     **   ~~~   ** See Warmup Convergence Information in .eio file for details
>     **   ~~~   ** ...Environment(SizingPeriod)="COLORADO SPRINGS MUNI AP ANN CLG 1% CONDNS DB=>MWB"
>     **   ~~~   ** ..Max Temp Comparison = 1.34E-002 vs Temperature Convergence Tolerance=0.40 - Pass Convergence
>     **   ~~~   ** ..Min Temp Comparison = 0.21 vs Temperature Convergence Tolerance=0.40 - Pass Convergence
>     **   ~~~   ** ..Max Cool Load Comparison = 7.0889E-002 vs Loads Convergence Tolerance=4.00E-002 - Fail Convergence
>
> Warmup Convergence Information,148 HONOR DIV LIBRARY,RunPeriod: WINTER,6.4472726116E-003,8.0143725422E-003,Pass,Pass,7.9555513653E-003,9.5650057725E-003,Pass,Pass
>
> Warmup Convergence Information,148 HONOR DIV LIBRARY,RunPeriod: SUMMER,6.5816786061E-002,6.4586893566E-002,Pass,Pass,3.6430051202E-002,0.1368286734,Pass,Pass
>
>
>
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