The best alternative is the System-Level Heat Exchanger (2P-2P) block.
The nominal condition should be quite easy to set up, but the default correlation coefficient may not work well enough for a plate heat exchanger. If you have some reference data, say heat flow at different flow rates and states of two refrigerants, you may use the Parameter Estimator App to find a good set of b & c coefficients.
I've done this before for Plate Heat Exchanger (TL-2P) against System-Level Heat Exchanger (TL-2P), and this method works pretty well. In case you don't have much reference data, you may try to put the geometry information into the plate heat exchanger (TL-2P), generate some reference data using simulation by varying boundary conditions and flow rates. Use the reference data to estimate the b & c coefficients. Use those coefficients on the 2P side for the System-Level Heat Exchanger (2P-2P) block.
Hope this makes sense.
