Hello,

I am trying to model an "Autosize" GSHP model for a group of residential buildings which are in the schematic stage of design. I tried to follow some of the example files and other online resources to set this up. The heating loads and temperatures are working fine but in the cooling mode the demand is meet for few days and rest of the time the outlet temp serving the Low temp Radiant system from the WSHP steadily goes up from the expected 18degC to 30 degC OR WSHP stopped working, Refer attached file C:\fakepath\2021-06-13_10h45_31.png. I also replaced the GHX with a cooling tower and it works fine which gives a hint that the problem could be at the GHX side. Is there any parameter which could affect the cooling capacity/demands directly under GHX objects for an "Autosize" setup?

Thank you,