Hello,
I hope you are pretty well.
I have a PTHP HVAC system for a simple building. I also need to have water thermal storage attached to the PTHP. The idea is that when the PTHP is off, the space heating should be provided via the charged thermal storage. I used an air-to-water heat exchanger. Since the PTHP is like a house appliance, and there is no air duct, piping with a proper branch and a heat exchanger is required.
I have the following error when I run the simulation:
There are some problems in the logic of items attaching most probably. The simulation file is in attached.
I really appreciate it if you could kindly help me to reach out what the problem is and how I can address that.
Thank you very much for your time and assistance.
Sincerely,
Behnam