From 1st of July 1 2009 in Australia and 9th June 2011 in New Zealand, Water and Air Cooled Packaged Water Chillers of 350 Kw in capacity and above are regulated for MEPS in Australia and New Zealand. The MEPS and compliance requirements are covered in AS/NZS 4776.2-2008. The method for Rating is covered in AS/NZS 4776 1.1-2008 and the method for Testing is covered in AS/NZS 4776 1.2-2008. Registration of products can be done on line at http://reg.energyrating.gov.au.
All chillers that are to be imported or manufactured in Australia after 1st July 1 2009 and 9th June 2011 in New Zealand must be registered before being imported or sold.
Program Scope
A – The standards cover water and air cooled packaged chillers with a capacity of 350kW and above:
- Leaving chilled water temperature between 4-9°C
- A water cooled condenser that has condenser water entering at between 18-40°C
- Leaving chilled water temperature between 4-9°C
- An air cooled condenser that has air entering the condenser at between 13-52°C
B – The Standards do not cover:
C – The standards cover both full load and part load performance
Note: that the referenced Standards are published jointly by Standards Australia and Standards New Zealand and are available from SAI Global.
Rating and Testing Procedures for Chillers
The Rating and Testing Standards of the Air Conditioning, Heating and Refrigeration Institute of the USA and the European Committee of Air Handling and Refrigeration Equipment Manufacturers (Eurovent) were used as a basis for the Australian/New Zealand Standards. The objective of the Rating Standard is to establish methods of rating the performance of factory made liquid chilling packages using the vapour compression cycle.
The objective of the Testing Standard is to prescribe the method of testing liquid chilling packages using the vapour compression cycle to determine the capacity, power and efficiency of equipment under a specific set of conditions.
It is not the intent of this Standard to provide for testing in-field installations, where steady state and uniform conditions are difficult to achieve and provisions for measurements are not made.
MEPS Requirements
The objectives of the MEPS Standard is to:
When rated and testing in accordance with AS/NZS 4776, Parts 1.1 and 1.2, the efficiency levels shall be not lower than those defined in Table 1. Future proposed efficiency levels are shown in Table 2.
TABLE 1
MINIMUM ENERGY PERFORMANCE STANDARDS (MEPS)
MINIMUM REQUIREMENTS FOR LIQUID CHILLING PACKAGES
| Capacity (kWR) | Minimum COP | Minimum IPLV | ||
| Air Cooled | Water Cooled | Air Cooled | Water Cooled | |
| < 350 | N/A | N/A | N/A | N/A |
| 350 – 499 | 2.70 | 5.00 | 3.70 | 5.50 |
| 500 – 699 | 2.70 | 5.10 | 3.70 | 6.00 |
| 700 – 999 | 2.70 | 5.50 | 4.10 | 6.20 |
| 1000 – 1499 | 2.70 | 5.80 | 4.10 | 6.50 |
| > 1500 | 2.70 | 6.00 | 4.10 | 6.50 |
| NOTE: Above capacities of 499, 699, 999 and 1499 cover all decimal values up to the next whole number. For liquid chilling packages operating under non-standard rating conditions as define in Part 1.1, the MEPS COP and IPLV levels are adjusted in accordance with Appendix E. | ||||
TABLE 2
PROPOSED FUTURE MEPS LEVELS
| Capacity (kWR) | Minimum COP | Minimum IPLV | ||||||
| Air Cooled | Water Cooled | Air Cooled | Water Cooled | |||||
| Path A | Path B | Path A | Path B | Path A | Path B | Path A | Path B | |
| < 350 | 2.70 | N/A | 4.50 | 4.40 | 3.70 | N/A | 5.5 | 5.9 |
| 350 – 499 | 2.70 | N/A | 5.00 | 5.00 | 3.70 | N/A | 5.7 | 6.7 |
| 500 – 699 | 2.70 | N/A | 5.10 | 5.10 | 3.75 | N/A | 6.0 | 7.8 |
| 700 – 999 | 2.70 | N/A | 5.50 | 5.50 | 4.10 | N/A | 6.2 | 7.8 |
| 1000 – 1499 | 2.70 | N/A | 6.00 | 6.00 | 4.10 | N/A | 6.5 | 8.8 |
| > 1500 | 2.70 | N/A | 6.20 | 6.20 | 4.10 | N/A | 6.5 | 8.8 |
NOTE:
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Registration Requirements and Process
Products certified by AHRI or Eurovent
In the case of liquid chilling packages using vapour compression cycles that are listed on the AHRI website or the Eurovent website, suppliers shall register each model using the form (in accordance with Appendix A) provided on the www.energyrating.gov.au website.
Products not certified by AHRI or Eurovent
a) Products from a range part of which is certified by AHRI or Eurovent. In the case of liquid chilling packages from a range that includes products listed on the AHRI website or the Eurovent website but that are themselves outside of the scope of these programs owing to their capacity range or power supply frequency, suppliers shall register each model using the form (in accordance with Appendix B) provided on the www.energyrating.gov.au website. Products that qualify under this category shall have the same generic model number as the certified products in the range and shall also be manufactured at the same facility as the certified products in the range.
b) Products from a range none of which is certified by AHRI or Eurovent. In the case of liquid chilling packages other than those specified in Clauses 6.2.1 and 6.2.2 (a), suppliers shall register each model using the form (in accordance with Appendix C) provided on the www.energyrating.gov.au website. For such products, a test report prepared in accordance with AS/NZS 4776.1.1 and AS/NZS 4776.1.2 shall be provided. A sample of such a test report is provided in Section C6.
NOTE: For registration, contact the relevant state regulatory authority.
This letter offering some clarification on the registration requirements for rental chillers, from the Chair of the Equipment Energy Efficiency Committee, was distributed to Commercial Building Chiller stakeholders in August 2009.
