I have downloaded CIBSE weather data, however when following the steps of installing the weather files from CIBSE and saving then within the Weather data>Cibse folder located at C:\ProgramData\Bentley\Hevacomp V8i\Hevacomp. I cant see no weather data folder after i click into the Hevacomp folder. Does anybody why i cant locate the weather data folder?
Any help is appriciated.
Ive had to manually create a weather data folder and within that create a cibse folder. This is where i have saved both my Norwich DSY AND TRY files. I am trying to add these files to the weather data on Hevacomp, however it keeps on saying "weather file not found....". I have tried following step 1 on the 'installing cibse weather data' of downloading the ndx files, however the links do not work.
Alternatively, i have used the browse button on the weather data to get the correct files up. I have used the TRY files for the ' select new energy weather data file' and the DSY file for the 'summer design year'. I have now run the CIBSE TM52 report and got results. Would you be able to clarify if firstly I have uploaded the correct TRY and DSY file to its correct location in Hevacomp weather data and secondly, if the alternative steps I have taken to complete the cibse TM52 report is correct.
Thanks for the images - that confirms the reason for this. Your screenshot shows the Program Files (x86) folder.
The weather data is not at that location - it is located in the Program Data as listed here, ie:
C:\ProgramData\Bentley\Hevacomp V8i\Hevacomp\Weather Data\CIBSE\
If you cannot see you Program Data folder this will be because of your Windows settings - please see here.
Shane Regan | Senior Building Performance Support Engineer
Answer Verified By: Aakil Patel
I have just downloaded them and will inspect these for you.
One thing to note is that CIBSE's combined type weather files are not compatible, so it would be worth checking with them to make sure this is not what you have been given, ie as mentioned here:
Thank you Aakil,
The files are a different format to the those shown in the list, so that explains your difficulty.
You can however easily use whichever file you require by just instead using the Browse option:
Just select All files as below:
Once you have picked the one you want, it will be added and used in your project:
And will appear in the Simulations as below:
Thanks Shane, you've been a massive help!!
I have been adding the .trv files to the 'select new energy weather data' and the .dsy files to the 'new summer design year' option under weather data.
Then for the 'select weather year option' shown below under frequency simulation I have selected the .trv file before running the TM52 report.
Would you be able to confirm whether my methodology is correct please.
No problem at all! Glad I was of help. TRV files are not supported - only TRY (test reference year) and DSY (design summer year). I assume you mean TRY rather than TRV?
That sounds mostly fine to me, it all depends on your requirements but usually I believe that when running Frequency a DSY file would be specified, to model the overheating worst-case analysis.
Yes I meant TRY. Its a relief to know it sounds right. Thanks for your help Shane.