[EnergyPlus_Support] warning of Fancoil

["dreamerfish8146" <dreamerfish8146@xxxxxxxxxxxx>]

Hi all!
I am simulating the energy consumption of a building.This building
is about 4500m2,fan coil system.Plant equipment are chiller and
boiler.I do the simulation with autosize.I divided it into 3
zones.
There is no error but there is a warning 
"** Warning **
COIL:Water:DetailedFlatCooling in Coil =* COOLING COIL
** ~~~ ** Air Flow Rate Velocity has greatly exceeded upper
design guidelines of ~2.5 m/s
** ~~~ ** Air MassFlowRate[kg/s]=0.000000
** ~~~ ** Air Face Velocity[m/s]=0.000000
** ~~~ ** Approximate MassFlowRate limit for Face Area[kg/s]=-
203849.666002
** ~~~ ** COIL:Water:DetailedFlatCooling could be
resized/autosized to handle capacity".
It happened to all the cooling coils.I wondered how this happened.
Thanks for help!




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