[TRNSYS-users] water to water heat pump

[Pascual Ortiz, Carol]

Hi TRNSYS users,

I would like to simulate  water  to water heat pump but I don't know which type I have to use, Type 927 or type 1221? I have read that the difference between them is the stage number, can anyone send me some information about parameters/inputs/outputs to know what type  fits better to my model?

Thanks in advance,
Kind Regards

Carol Pascual
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