Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
The answer is "depending on the EMS Calling Point you use".
I was using as calling point Inside HVAC System Iteration Loop. It gave me more precise results during simulation than Begin Timestep Before Predictor.
However, it seems that ideal load calculation during sizing is not performed as an HVAC System, so the calling point Inside HVAC System Iteration Loop is not valid for sizing. I have changed to Begin Timestep Before Predictor and now the program is working for Sizing too.
Hope this findings are useful to the rest of you.
