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Hi Brannon, previously I tried to ask the supplier to generate the data points for the chiller curves and I did a regression with data to get the coefficients for IES chiller curve. However the curves I got only covers part of the operation conditions and looks very different from the default chiller curves of a similar chiller model. I guess in order to get a more accurate curve we need a lot of data and the only place to get them is from the suppliers' proprietary software/database.