Template TRNSYS files
These templates must be used by applicants in modelling water heater performance.
The template files:
- incorporate the required structure and inputs for modelling in line with the relevant standards
- support consistency across applications, making it easier for applicants to prepare submissions and for IPART to assess them.
Applicants should use these templates to develop their TRNSYS model for each water heater product being submitted, ensuring that all product-specific inputs, parameters and assumptions are correctly applied.
Setting up your computer to use TRNSYS files
We recommend that all applicants place the include and weather files in the same directory as follows:
c:\TRNSYS15\Include&weather\......
This will allow the TRNSYS simulation to run on any computer that is used to open the decks and assist with smooth application processing.
Standards Australia AS/NZS4234 update in 2026
There is an amendment to AS/NZS4234 currently in progress, which has been through the Standards Australia consultation process. The new template decks will be released on publication of this amendment, which is expected to be by the end of June 2026. We will publish these decks as soon as the amendment is published.
We will be allowing a 2 month transition period once these new decks are published. You should take this into consideration when you plan for modelling.
Applications that do not align with the updated standard and templates may require further information or may be refused for product acceptance.
Download TRNSYS template files
The TRNSYS template files will be available here shortly after the amendment to AS4234 is released. Please check back in here soon.
If you have questions about using these files or preparing your application, contact the Product Applications Team at essproducts@ipart.nsw.gov.au.