I use the ideal air loads system to siumlate the building load, the result shows a big difference between district cooling and heating as follow:

There no big apparent unreasonable sets in the model, So whether this difference arises from the ideal air loads system?

I use the ideal air loads system to siumlate the building load, the result shows a big difference between district cooling and heating as follow:

There no big apparent unreasonable sets in the model, So whether this difference arises from the ideal air loads system?