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</o:shapelayout></xml><![endif]--></head><body lang=DE link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span lang=EN-GB style='font-family:"Arial",sans-serif'>Hello everyone,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-family:"Arial",sans-serif'>I want to implement a heat pump type for a water-to-water heat pump with ground as a source in my simulation, because currently the heat pump is only implemented with a view equations, not with a type. In my case a heat pump with a variable speed compressor is needed. I read some older threads in the archive to modify or extend for example type 927 (single stage water-water hp), even though it seems to just kind of fool the simulation – so does anyone know, if there is maybe already an existing complete type for a modulating ground source heat pump? If not, I want to ask again for some solutions </span><span lang=EN-GB style='font-family:Wingdings'>J</span><span lang=EN-GB style='font-family:"Arial",sans-serif'>. I also read that there will be an update of the TESS library in 2021 – is it expected to emerge soon?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-family:"Arial",sans-serif'>Big thanks in advance!<br><br><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-family:"Arial",sans-serif'>Best regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-family:"Arial",sans-serif'>Manfred Schindler<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-family:"Arial",sans-serif'>FH Technikum Wien<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div></body></html>