You add the "latent heat" when defining (importing) your material (0 for water liquid and 43987714 j/Kgmol for water vapor) and it does not depend on your boundary conditions (inlet or outlet temperatures). Water in liquid state has latent heat value of zero and in vapor state it is 43987714 j/Kgmol.
I am not sure what you meant by "SSE of water", but yes as I mentioned latent heat should be 0 for liquid and 43987714 j/Kgmol for vapor state.
Hope it helps.
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