<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-2">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Dear All,<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
I am trying to simulate Type 941 air-to-water heat pump system (file Multizone_AWHP_V2_H&C_08.30_BP.idf), directly connected to floor heating and slab cooling, however the model does not work for some reasons. Trnsys message 441 comes up, saying that some listed
inputs have not coverged during the simulation. It seems to occur escpecially in case of heating - the simulation does not even finish. However, in case of cooling the model seems to work - starting with June the simulation goes on until the first periods
of heating. <br>
<br>
Do you have any ideas what the problem could be and how to solve it? <br>
Would really appreciate it!<br>
<br>
Also, it is strange that it is the case for Budapest weather data, or all other that needs heating a lot. In case of Sydney weather, it seems to run properly (Multizone_AWHP_V2_H&C_08.26_massflow.idf). I am also attaching a file calculating the heat loads for
a specific case (Multizone_AWHP_HeatLoads.idf)<span style="background-color:rgb(255, 255, 255);display:inline !important">, and the building itself (AWHP_V2_H&C_08.26.b18)</span><br>
<br>
Hope you have solutions!<br>
Thank you in advance,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span style="margin:0px;font-family:"Sitka Heading", Cochin, serif;color:rgb(12, 100, 192);background-color:rgb(255, 255, 255)"><b>Laszlo GERGELY</b></span><br>
<span style="margin:0px;font-family:"Sitka Heading", Cochin, serif;color:rgb(12, 100, 192);background-color:rgb(255, 255, 255)">PhD student</span><br style="background-color:rgb(255, 255, 255)">
<span style="margin:0px;font-family:"Sitka Heading", Cochin, serif;color:rgb(12, 100, 192);background-color:rgb(255, 255, 255)">Budapest University of Technology and Economics</span><br>
</div>
</body>
</html>