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.
Last seen: Apr 29, 2026
@jolind You'd set the simulation start time as 6552 (october 1) and the simulation stop time to 10920 (8760+2160). When Type99 (also Types9 and 15) ge...
@rithesh-chajed I am afraid I do not know how to answer your question. If you don't receive an answer in this forum I would encourage you to reach out...
@mehdi_s you are correct that I didn't see your previous post! Sorry about that. The configuration for a coiled tube heat exchanger in a horizontal...
@shamsoddinghiami It is a bit hard to give an answer simply because there are dozens of different ways that the system could be designed. I'll try to...
@yuichiyasuda Yuichi, thanks for developing this and sharing it! It looks like a very useful tool for TRNFlow users! David
@sm Virk, please bear in mind that this is intended to be a forum where users can share questions, ideas, and solutions amongst themselves. If you are...
@franciscofh I admire your persistence. If you would be willing to share your solution, I would appreciate it. It sounds as though the code needs some...
@franciscofh could you please send the project (*.tpf) and any files required in order to run the project to techsupport@tess-inc.com. If there is a b...
@magraoui_chaima how you define shading depends a bit on what is being shaded. If you are shading the window of a Type56 building then you can define ...
@shamsoddinghiami to me it looks from your screen capture as though you might want the first approach that @a_weiss described. I can't entirely tell; ...
@biz98 I am glad to hear that you found the cause of the behavior.
@jolind my apologies, TALF was a typo. I meant TALM. kind regards, David
@jolind Johan, Yes, my understanding is that TALM is the temperature in the core of the radiant floor. That is not quite the same as the temperature...
@jolind Johan, Yes, my understanding is that TALM is the temperature in the core of the radiant floor. That is not quite the same as the temperature...
@franciscofh, could you please send the project *.tpf, the data files it is using, and any other files needed in order to run the model (even if you d...