It’s a units conversion issue.
In your case divide the values in excel by 0.09290 before feeding them as parameter values for Design Heating/Cooling Load
If you are working with MEP families you could also try the MEPover package which allows you to extract values directly in your chosen Revit internal units.
This is my first program in Dynamo. I did an xml version too, and it’s the same problem. I don’t understand why, but it’s working! Thank you sir!!!
I wasn’t writing about this, but this was very helpful too. Thanks!