[EnergyPlus_Support] Inlet parameters for plant demand side splitter are not physically possible

["hbn_pch" <hbn_pch@xxxxxxxxxxxx>]

I found when i input the inside convection algorithm and outside 
convection algorithm as simple,then the sever as description will 
present.If i input as detailed instead,then the severe will 
disappear,but there are much more warnings as follows:

    ** Warning ** Hot water coil control failed in 4 pipe induction 
unit 2F_10_FPIU
   **   ~~~   **   Iteration limit exceeded in calculating hot water 
mass flow rate

   ** Warning ** Hot water coil control failed in 4 pipe induction 
unit 2F_22_FPIU
   **   ~~~   **   Iteration limit exceeded in calculating hot water 
mass flow rate

  Apprecriated your kind help.thank you very much

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "hbn_pch" <hbn_pch@y...> 
wrote:
>
> Hi,all
>    There is a serve and some warnings that i can't fix.As follows:
> 
>    ** Severe  ** Inlet parameters for plant demand side splitter 
> are   not physically possible
>    **   ~~~   ** Problem in input for plant demand side CHILLED 
WATER 
> LOOP
>    **   ~~~   ** The maximum flow out of the splitter is less than 
> the minimum inlet flow
>    **   ~~~   ** Flow rate inputs for the loop do not match flow 
> requirements of the various branches/components
>    **   ~~~   ** Check your flow rates and make sure that flow 
> balances between the splitter inlet and outlets
> 
>    ** Warning ** SizeWaterCoil: Coil="1F_9_FPIU_CW_COIL", Cooling 
> Coil has leaving humidity ratio > entering humidity ratio.
>    **   ~~~   ** ..will be sized for 50% of design entering 
humidity 
> ratio.
>    ** Warning ** For COIL:Water:Cooling 1F_9_FPIU_CW_COIL
>    **   ~~~   ** CalcCoilUAbyEffectNTU:Given Q impossible for given 
> inlet states,Proceeding With MaxHeat Transfer
> 
>   I check the splitter and find no problems.Meanwhile,flow rates 
are 
> all autosized.I don't know how to eliminate the serve.
> 
>   Many zones have the warning above.I don't know what do they mean.
> 
>   Can anybody give me some suggestion? thanks 
> 
>  pch
>






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