[EnergyPlus_Support] Induced air terminal unit

["zhaicq98" <chaoqinz@xxxxxxxxxxxxxx>]

Hi,

I am wondering how the induced air terminal unit SINGLE DUCT:CONST 
VOLUME:4 PIPE INDUC is autosized. 

I have a setpoint for the primary supply air temperature, but the 
primary air flow is set as "autosize". The heating and cooling coils 
in the unit are also set as "autosize". I am not sure how EnergyPlus 
determines the supply air flow when the actual supply air temperature 
(different from the primary supply air temperature) is unknown. 

In my simulation, the heating water flow is autosized as a negative 
number, which really confuses me. 

In addition, I ran the example file 5ZoneFPIU.idf, but no HVAC system 
diagram was generated. The .svg file says there is error in the input 
file. 

I will really appreciate if anyone can help me out here. 

-Chaoqin





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