Both the COP (Hot) for best and COP (Cold) for worst COP I imagine. Presume the 'total excl. pumps' is the COP if you ignore the seawater and heated water circulation pump power consumption. Examples of litres/second sea water pumping, pages 17 and 24 at https://varmepumpeindustrien.dk/Assets/pdfs/RaymondCDecorvet_Mega_heat-pumps_v2.pdf
Comments
COP (Cold)-1.84 1.97 2.04
COP (total excl. pumps)-4.68 4.94 5.08
I wonder which line we should pay most attention to?
I suspect the top, but if the btm line is the significant number then all to the good....