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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Dear TRNSYS users,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m looking for an air-to-water-heat pump type, which allows an infinitely variable control of its compression power, for TRNSYS 16 or 17.<o:p></o:p></p><p class=MsoNormal>As far as I know, the only type, which comes into consideration is type 372, one of the TRANSSOLAR non-standard types.<o:p></o:p></p><p class=MsoNormal>Unfortunately, up to now, my institution is exclusively working with the TESS libraries, and we have so far no access to this type 372.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thus, in order to avoid unnecessary expenses, my questions are:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Is there really no type in the TESS libraries for modeling such an air-to-water heat pump with infinitely variable compressor control?<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>If there is really not such type available, do you have an idea how to simulate such a heat pump with one of the single-stage heat pump types existing in the TESS libraries?<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Is it possible with type 372 to define ranges for the infinitely variable control (100% to 40% of total capacity) and an oscillating control (below 40% total capacity).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks in advance for your help.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Kind regards,<o:p></o:p></p><p class=MsoNormal>Johannes<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 style='margin-left:3.0pt;border-collapse:collapse;border:none'><tr><td style='border:solid gray 1.0pt;border-right:none;padding:7.5pt 7.5pt 7.5pt 7.5pt'><table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 style='margin-left:3.0pt;border-collapse:collapse;border:none'><tr><td style='border:solid gray 1.5pt;padding:3.0pt 3.0pt 3.0pt 3.0pt'><p class=MsoNormal style='mso-margin-top-alt:6.0pt;margin-right:3.0pt;margin-bottom:6.0pt;margin-left:3.0pt'><b><span lang=DE style='font-size:9.0pt;font-family:"Arial","sans-serif"'>Johannes Schrade</span></b><span lang=DE style='font-size:9.0pt;font-family:"Arial","sans-serif"'><br>Abteilung Wärmetechnik<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:6.0pt;margin-right:3.0pt;margin-bottom:6.0pt;margin-left:3.0pt'><span lang=DE style='font-size:9.0pt;font-family:"Arial","sans-serif"'>Fraunhofer-Institut für Bauphysik<br>Nobelstr. 12<br>70569 Stuttgart<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:6.0pt;margin-right:3.0pt;margin-bottom:6.0pt;margin-left:3.0pt'><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'><a href="mailto:johannes.schrade@ibp.fraunhofer.de"><span lang=DE style='color:blue'>johannes.schrade@ibp.fraunhofer.de</span></a></span><span lang=DE style='font-size:9.0pt;font-family:"Arial","sans-serif"'><br>Telefon 0711 / 970-3416<br>Telefax 0711 / 970-3399<br></span><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'><a href="http://www.ibp.fraunhofer.de/wt/" target="_blank"><span lang=DE style='color:blue'>www.ibp.fraunhofer.de/wt/</span></a></span><span lang=DE style='font-size:9.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p></td></tr></table></td><td style='border:solid gray 1.0pt;border-left:none;padding:7.5pt 7.5pt 7.5pt 7.5pt'><table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 style='margin-left:3.0pt;border-collapse:collapse;border:none'><tr><td style='border:solid gray 1.5pt;padding:3.0pt 3.0pt 3.0pt 3.0pt'><p class=MsoNormal style='mso-margin-top-alt:6.0pt;margin-right:3.0pt;margin-bottom:6.0pt;margin-left:3.0pt'><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>Johannes Schrade</span></b><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'><br>Department Heat Technology <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:6.0pt;margin-right:3.0pt;margin-bottom:6.0pt;margin-left:3.0pt'><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>Fraunhofer Institute for Building Physics<br>Nobelstr. </span><span lang=DE style='font-size:9.0pt;font-family:"Arial","sans-serif"'>12<br>70569 Stuttgart, Germany<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:6.0pt;margin-right:3.0pt;margin-bottom:6.0pt;margin-left:3.0pt'><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'><a href="mailto:johannes.schrade@ibp.fraunhofer.de"><span lang=DE style='color:blue'>johannes.schrade@ibp.fraunhofer.de</span></a></span><span lang=DE style='font-size:9.0pt;font-family:"Arial","sans-serif"'><br>Phone +49 711 / 970-3416<br>Fax +49 711 / 970-3399<br></span><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'><a href="http://www.ibp.fraunhofer.de/wt/" target="_blank"><span lang=DE style='color:blue'>www.ibp.fraunhofer.de/wt/</span></a></span><span lang=DE style='font-size:9.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p></td></tr></table></td></tr></table><p class=MsoNormal><span lang=DE><o:p> </o:p></span></p></div></body></html>