OSM results with Ironbug can't connect to HB thermal balance load

Hello everyone and @MingboPeng

Now I’m trying to use HB+ironbug for energy simulations.
I use this forum discussion for references. Thank you for all.

I’m disturbing the error when connecting OSM with Ironbug to HB thermal balance load below.

I attached the GH file.
Could forum member help me?

Best regards

Hi @Take_JD
Load balance cannot be calculated with a real HVAC system, please switch to IdealAirLoad System for load calculation.

Thank you for your quick reply! @MingboPeng !