Document ID: chunk:federal_register_of_legislation:F2022C00033:front:0:p4
Version: federal_register_of_legislation:F2022C00033
Segment Type: other
Provision Reference: 
Character Range: 7873–10854

to be considered an ASHP or a small SWH could in December 2016 be viewed on the Clean Energy Regulator's website (http://www.cleanenergyregulator.gov.au/RET/Pages/Forms and resources/Forms-and-resources-for-manufacturers.aspx).
Small SWHs shall be rated for climate zones 1 to 4 specified in AS/NZS 4234:2008.  ASHPs shall be rated for climate zones 1 to 5 based on the five heat pump climate zones HP1-Au to HP5-Au specified in AS/NZS 4234:2008 and AS/NZS 4234:2008 Amendments 1 and 2.
The method is as follows:
1. Using the TRNSYS computer modelling package, format the TRNSYS deck files as set out in the TRNSYS Modelling Guidelines in Part 3 of this Schedule.
2. Calculate the total annual auxiliary energy use (MWh/y) for the small SWH or ASHP using the TRNSYS computer modelling package with the following TRNSYS input parameters:
           a. Solar collector slope = 20°.
           b. Solar collector azimuth = 45°.
           c. For the climatic zones, use the weather data published by the Clean Energy Regulator.
Note:   Weather data could in December 2016 be found on the Clean Energy Regulator's website (http://www.cleanenergyregulator.gov.au/RET/Pages/Forms and resources/Forms-and-resources-for-manufacturers.aspx).
           d. Select the appropriate hot water load for the small SWH or ASHP as detailed below. A minimum delivery temperature of 45°C must be achieved in each zone for which STCs are to be claimed.
              i. Select the hot water load (small, medium or large) for a small SWH. A minimum energy savings of 60% must be achieved in zone 3 for the small SWH to be rated with medium or large load.
              ii. Select the hot water load (small or medium) for an ASHP. A minimum energy saving of 60% must be achieved in zone 3 for the ASHP to be rated as medium load.
              iii. The percent energy savings, for the purpose of defining load size, shall be calculated as per clause 3.14.1 of AS/NZS 4234:2008.
           e. The modelling of the small SWH or ASHP shall show compliance with the legionella control requirements specified in AS 3498-2009.
           f. To rate thermosiphon SWHs and thermosiphon sidearm heat exchangers, use extension package TRNAUS.
           g. ASHP COP and power consumption performance shall be determined from full system tests in a temperature and humidity control test chamber to the requirements of AS/NZS 5125.1:2010 including the Low Temperature Performance Penalty for Class A Low Temperature products. The performance shall be correlated using the method described in AS/NZS 5125.1: 2010. All ASHPs that operate in heat pump mode at ambient temperatures lower than the initial frosting temperature shall include the Low Temperature Operation Penalty specified in AS/NZS 5125.1:2010 and AS/NZS 4234:2008 Amendment 1.
           h. The modelled lengths of piping shall be based on the following:
              i. For a pumped circulation system, the length of pipe between the storage tank and