[EnergyPlus_Support] about the humid ratio control and the preheat desigh set temperature

["beyangj" <beyangj@xxxxxxxxxxx>]

Dear,

In my simulation model, the Zone heating design supply air humidity 
ratio doesn't need to be controlled. I set the Fieild:Zone heating 
design supply air humidity ratio as blank, but the following error 
message was given: 
** Severe  ** Error detected in Object=ZONE SIZING, name=SP1
**   ~~~   ** Field [Zone heating design supply air humidity ratio] 
is required but was blank

In my model, there is no  preheat coil, so I didn't control the 
preheat design set temperature, and I set this field as blank. Also 
the error message about it was given as follow:
** Severe  ** Error detected in Object=SYSTEM SIZING, name=VAV SYS 1
**   ~~~   ** Field [Preheat design set temperature] is required but 
was blank

For these two fields, they both can't be set as blank, but they 
don't need to be controlled in my model, how can I set these two 
fields? 

Best,

Stewart 






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