I have a vertical ground loop geothermal system, with water to air and water to water heat pumps. I had a successful model a few weeks ago, but when I change any parameter (construction, load), then the model fails with:
* Fatal * CheckForRunawayPlantTemps: Simulation terminated because of run away plant temperatures, too hot
When replacing the geothermal system with a district heating/cooling plant, the model runs successfully. I've tried deleting the DOAS units and Water to Water heat pumps, but it still runs into the same error.
I am wondering if there is a bug within the Water to Air heat pump coils? Is there a way to pinpoint the diagnosis and figure out a solution?
I attached the .osm and .err file here: https://drive.google.com/drive/folders/1mat3Iyfv7TLlA2ati0htloL-MBhgQlPm?usp=sharing
