[EnergyPlus_Support] A question about the ASHRAE90.1 based centrifugal chiller COP.

[韩星 <foolishstar@xxxxxxx>]

A question about the ASHRAE90.1 based centrifugal chiller COP. 

The COP is a function of the chilled and condenser water temperature differences. In the E+, the chiller curves could be defined in the performance curves, and the curve: cubic could describe the function of the COP and the temperature differences. 

But I cannot figure out where to define the x in the curve. 

Besides, in the chiller performance input, there are cooling capacity function and electric input function, but no COP function.

So I wonder how to deal with the problem.

Thanks!

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