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

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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