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.

A_Weiss
A_Weiss
@a_weiss
Moderator
TESS Engineer
Joined: Jan 19, 2023
Last seen: Nov 8, 2024
Topics: 11 / Replies: 140
Reply
Answer to: Type 515 heating and cooling season scheduler

@shamsoddinghiami I am not able to replicate that behavior, so I do not know what may be going wrong. SeasonScheduler.exe is the executable that is...

3 weeks ago
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Answer to: Use of type66 for calling EES64 with TRNSYS18

@danielsmith I don't see any way the problem would be related to the TRNSYS18 demo version. I am actually a little surprised that the demo works for y...

4 weeks ago
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Answer to: warning emanated from inconsistency in units

@shamsoddinghiami There's a bug in the units designation for that output in the source code of that Type. These checks are independent of the labels...

1 month ago
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Answer to: calculate chiller power consumption with varible chw flow control

@vevek The power consumption of the chiller should be an output of the Type you're using to model the chiller. For example, in TRNSYS18 in the standar...

2 months ago
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Answer to: Sequencing heat pump activation

@shamsoddinghiami How would a real system solve this problem? To the extent I'm familiar, most real systems run off of temperature control. They will ...

2 months ago
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Answer to: Sequencing heat pump activation

@shamsoddinghiami Do you want to control the sequential activation off of a zone temperature, or off of the total desired load? If you want multiple...

2 months ago
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Answer to: Un stable Results

It sounds like you have a variable somewhere in your code that is being used on a call to the Type before it is defined on that call; when that happen...

3 months ago
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Answer to: Un stable Results

@gehadrabee24 I agree, you shouldn't see results change just from adding a component and not connecting it to any other part of your simulation. That'...

3 months ago
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Answer to: ERROR WHEN RUNNING TRNEDIT

There was a procedure added in TRNSYS versions 18.05 and later that fixed this issue. This error is not specific to running TRNSYS through TRNEdit, bu...

3 months ago
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Answer to: Error in Type 515 and 516

@saeidbina I messaged my colleague that wrote the app, and they said the older version of the app used some windows controls plugins that are no longe...

3 months ago
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Answer to: Validation with TRNSYS

@asalburaiki This is going to require a lot more context to understand. Are you comparing a TRNSYS project to measured data, or to another model? If...

3 months ago
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Answer to: Battery 47a Problem

@ASAlburaiki Type47a is designed to be used with an inverter/controller (such as Type48), which allows the user to set high and low limits on the fr...

4 months ago
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Answer to: Error in Type 515 and 516

Hello @saeidbina , The installation on your new computer probably either cannot find or has not registered the Windows 'comdlg32.ocx' file. I wrote ...

4 months ago
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RE: TYPE 5A : unit conversion

The same behavior was true in TRNSYS17 and all earlier versions of TRNSYS, the automatic pop-up notification was added with TRNSYS18 to make the behav...

5 months ago
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Answer to: TYPE 5A : unit conversion

@marcos In TRNSYS18, there is pop-up notification that reads, "WARNING: Changing an input unit will not affect the value calculated by any variables...

5 months ago
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