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[EnergyPlus_Support] Improper flow delivered by desiccant regen fan



In DOAS model, same error which is below repeated again and again.
I've adjusted air flow and capcity of desiccant coil and 
dehumier:solid=desiccant as you mentioned before.
Should I modify air flow of air loop or other flow rate ?

** Severe  ** Improper flow delivered by desiccant regen fan - 
RESULTS INVALID! Check regen fan capacity and schedule.
   *************  **   ~~~   **   This error occurred 22766 times.
   *************  **   ~~~   ** DESICCANT 
DEHUMIDIFIER:SOLID=DESICCANT 1
   *************  **   ~~~   ** Flow requested [m3/s] from 
FAN:SIMPLE:VARIABLEVOLUME=DESICCANT REGEN FAN
   *************  **   ~~~   **   Max=0.307887
   *************  **   ~~~   ** Flow request varied from delivered 
by [m3/s]
   *************  **   ~~~   **   Max=0.307887  Min=0.204879

** Severe  ** Inadequate heat delivered by desiccant regen coil - 
RESULTS INVALID! Check regen coil capacity and schedule.
   *************  **   ~~~   **   This error occurred 22766 times.
   *************  **   ~~~   ** DESICCANT 
DEHUMIDIFIER:SOLID=DESICCANT 1
   *************  **   ~~~   ** Load requested [W] from 
COIL:GAS:HEATING=DESICCANT REGEN COIL
   *************  **   ~~~   **   Max=42170.148247
   *************  **   ~~~   ** Load request exceeded delivered by 
[W]
   *************  **   ~~~   **   Max=42170.148247



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