[TRNSYS-users] Unknown unit number + negative flow rate errors

Currie, Sam R scurrie at purdue.edu
Mon May 6 05:19:55 PDT 2013

Hi JB,

Open the project up in TRNBUILD and check the inputs and outputs for the Type56. As soon as you open up the project there is a dialogue box that lists out project name, the editor, and location. At the bottom of that menu are options for setting the specific inputs and outputs that you see in simulation studio. Add the appropriate ones and go back to simulation studio. Here you have to right click on the Type56 component and update the variable list.

Hope this helps, in the future you may consider using the TRNSYS plugin for Google SketchUp. Also if submit a question you probably want to start a new thread, just a heads up ☺

Sam Currie
Purdue University

From: Jhumoor Biswas [mailto:jhumoorb at yahoo.com]
Sent: Monday, May 06, 2013 4:48 AM
To: TRNSYS users mailing list at the Solar Energy Lab, UW-Madison
Subject: Re: [TRNSYS-users] Unknown unit number + negative flow rate errors

I am new to TRNSYS. I am trying to design a 3 storey building. Each of the flooors are divided into a zone. Using the building wizard one zone was compeleted. The other two zones are being added in TRNSBUILD. There is no problem on that issue. However when TRNSYS simulations take place it seems that the solver is not considering the added zones. Do some modificatios have to take place to couple the zones in TRNSYS?
Thanks a lot

From: Flynn Ciaran <ciaran.flynn at aalto.fi>
To: "TRNSYS users mailing list at the Solar Energy Lab, UW-Madison" <trnsys-users at cae.wisc.edu>
Sent: Friday, May 3, 2013 8:11 PM
Subject: Re: [TRNSYS-users] Unknown unit number + negative flow rate errors

Hey Damien,

Click on the “Lst file…” tab, you can see it from the screenshot you took. This will open your lst file and when you scroll to the bottom of it you will get more information about the type of errors you are getting.
(Note that to access this file directly, go to the same directory as your trnsys file and it’s the text file in the same name)

Hope this helps,

Bon wkd,

TRNSYS-users mailing list
TRNSYS-users at cae.wisc.edu<mailto:TRNSYS-users at cae.wisc.edu>

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