Welcome to the TRNSYS Users Forum.

The forum is a place where people can interact and have discussions about different topics involving the use of the TRNSYS software package. Here you can post topics for discussion or questions on using TRNSYS and get advice from other users or TRNSYS experts. This forum is not intended for detailed technical support. Users should contact their distributor’s hotline for such assistance.

Some tips for success on using the forum:

  • Follow the Forum Rules posted in Forum Administration.
  • There are categories for different types of topics and questions. Post your topic or question into the proper category.
  • Before posting a topic or question search the existing topics  (and the TRNSYS Users listserv archive or Post archive) to see if a similar topic or question has already been answered.
  • Use a descriptive topic name. Don’t use attention getting subjects, they don’t get attention and only annoy people.
  • State the version of TRNSYS and which add-ons your are using.
  • Include enough specific details for your topic of question to be answered. Just posting “Why am I getting an error?” without describing the specific error and what you are trying to do when you get the error will not receive a response that fixes your issue.
  • Remember when people help you, they are doing you a favor. Be patient, help people out by posting good descriptions of what you need help with, and be polite even if a response does not solve your issue.
  • Moderators may edit your post for clarity or move your topic to a more appropriate category.

Notifications
Clear all

Error Automatic heat transfer calculation

1 Posts
2 Users
0 Reactions
692 Views
0
Topic starter

Hello users,

I am writing to you to seek assistance regarding an issue I am encountering while running a simulation in TRNSYS. When I initiate the simulation, I encounter the following error message:

*** Fatal Error at time : 0.125000

Generated by Unit : 2

Generated by Type : 56

Message : Automatic heat transfer calculation is only allowed on surfaces within a zone. Please check the building input file (.bui)!

I have already checked that the heat transfer coefficient calculation of all my walls (external, boundary and adjacent) and windows is not set to "internal calculation"

Could you kindly provide me with some insights on how to troubleshoot this issue?

Thank you very much for your prompt attention to this matter. I look forward to your guidance and assistance in resolving this issue.

1 Answer
0

@yuri_h,

 If this problem is still active, please send the project and building file to your distributor. If you aren't sure who to contact, you can post those two files as well as the *.lst file that is generated when you run the project here and I'll have a look at it.

kind regards,

 David

 

Share: