Draft for Public Comment Australian/New Zealand Standard

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1 COMMITTEE EL-056 DR AS/NZS :2014 Amd 1:2016 (Project ID: Draft for Public Comment Australian/New Zealand Standard LIABLE TO ALTERATION DO NOT USE AS A STANDARD BEGINNING DATE FOR COMMENT: CLOSING DATE FOR COMMENT: 18 October December 2016 Important: Te procedure for public comment as canged please read te instructions on te inside cover of tis document. Amendment 1 to AS/NZS :2014 Performance of electrical appliances Air conditioners and eat pumps Part 4.2: Air-cooled air conditioners and air-to-air eat pumps Testing and calculating metods for seasonal performance factors Heating seasonal performance factor (ISO :2013 (MOD COPYRIGHT

2 Draft for Public Comment Australian/New Zealand Standard Te committee responsible for te issue of tis draft comprised representatives of organizations interested in te subject matter of te proposed Standard. Tese organizations are listed on te inside back cover. Comments are invited on te tecnical content, wording and general arrangement of te draft. Te metod for submission of comment on tis document is to register and fill in an online form via Standards Hub Website. Instructions and examples of comment submission are available on te website.. Please use te following link ttps://ub.standards.org.au/ub/public/listopencommentingpublication.action Comment must be via Hub, any s or forms sent to us by fax or mail will not be considered by te Committee wen it reviews te Public Comment received. Please place relevant clause numbers beside eac comment. Editorial matters (i.e. spelling, punctuation, grammar etc. will be corrected before final publication. Te coordination of te requirements of tis draft wit tose of any related Standards is of particular importance and you are invited to point out any areas were tis may be necessary. Please provide supporting reasons and suggested wording for eac comment. Were you consider tat specific content is too simplistic, too complex or too detailed please provide an alternative. If te draft is acceptable witout cange, an acknowledgment to tis effect would be appreciated. Once you ave registered and submitted you comments via te online form, your comments are automatically submitted to te committee for review. Normally no acknowledgment of comment is sent. All comments received via te Standards Hub Website by te due date will be reviewed and considered by te relevant drafting committee. We cannot guarantee tat comments submitted in oter forms will be considered along wit tose submitted via te Standards Hub online form. Were appropriate, canges will be incorporated before te Standard is formally approved. If you know of oter persons or organizations tat may wis to comment on tis draft Standard, could you please advise tem of its availability. Furter copies of te draft are available from te Publiser SAI Global at ttp:// SAI GLOBAL Customer Service Centre Telepone: Facsimile: Internet: ttp://

3 Draft for Public Comment STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Committee EL-056 Room Air Conditioners DRAFT Australian/New Zealand Standard Performance of electrical appliances Air conditioners and eat pumps Part 4.2: Air-cooled air conditioners and air-to-air eat pumps Testing and calculating metods for seasonal performance factors Heating seasonal performance factor (ISO :2013 (MOD (Amendment 1 to AS/NZS :2014 Comment on te draft is invited from people and organizations concerned wit tis subject. It would be appreciated if tose submitting comment would follow te guidelines given on te inside front cover. Important: Te procedure for public comment as canged please read te instructions on te inside cover of tis document Tis document is a draft Australian/New Zealand Standard only and is liable to alteration in te ligt of comment received. It is not to be regarded as an Australian/New Zealand Standard until finally issued as suc by Standards Australia/Standards New Zealand.

4 DRAFT ONLY 1 DRAFT ONLY STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND AS/NZS /Amdt 1/ Amendment No. 1 to AS/NZS :2014 Performance of electrical appliances Air conditioners and eat pumps Part 4.2: Air-cooled air conditioners and air-to-air eat pumps Testing and calculating metods for seasonal performance factors Heating seasonal performance factor (ISO :2013 (MOD REVISED TEXT Te 2014 edition of AS/NZS is amended as follows; te amendments sould be inserted in te appropriate places. SUMMARY: Tis Amendment applies to te Preface, Appendix ZZ and Appendix ZA (new Publised on. Approved for publication in New Zealand on bealf of te Standards Council of New Zealand on AMDT No. 1 AMDT No. 1 Preface At te end of te tird paragrap, add te following sentence: Appendix ZA as been added to provide information on te development of te climate files for Australia and New Zealand. Appendix ZZ ZZ2 Delete te text of Paragrap ZZ2 and replace wit te following: Te following modifications are required for Australian/New Zealand conditions: 3.12 Delete te definition in Clause 3.12 and replace wit te following: eating full-load operation operation wit te equipment and controls configured for maximum continuous refrigeration capacity at H1, H2 or H3 conditions, te compressor setting is te same for all conditions 3.13 Delete te definition in Clause 3.13 and replace wit te following: 6.2 eating extended-load operation operation of te equipment at maximum continuous refrigeration capacity at a iger compressor capacity tan full-load operation at H2 or H3 conditions, were tis mode is available Tird paragrap, delete te equation and replace wit te following: t 15 C and t 0 C After te tird paragrap, add te following text: Te calculation of Australian and New Zealand cooling and eating seasonal performance factors is based on temperature bin distributions for tree reference climate files. Tey are derived from te 2016 Nationwide House Energy Rating Sceme (NatHERS climate files. Tese consist of a typical meteorological year (TMY file compiled from raw Bureau of Meteorology climate data.

5 DRAFT ONLY 2 DRAFT ONLY Table 3 Delete Table 3 and replace wit te following tree tables: TABLE 3.1 REFERENCE OUTDOOR TEMPERATURE BIN DISTRIBUTION FOR HOT/HUMID ZONE Bin number j Outdoor temperature tj C Fractional Bin ours nj n1 n2 n3 n4 n5 n6 n7 n8 n9 n10 n11 n12 n13 Reference (nj Bin number j Outdoor temperature tj C Fractional Bin ours nj n14 n15 n16 n17 n18 n19 n20 n21 n22 n23 n24 n25 Reference (nj Total

6 DRAFT ONLY 3 DRAFT ONLY TABLE 3.2 REFERENCE OUTDOOR TEMPERATURE BIN DISTRIBUTION FOR MIXED ZONE Bin number j Outdoor temperature tj C Fractional Bin ours nj Reference (nj Bin number j Outdoor temperature tj C Fractional Bin ours nj Reference (nj n1 n2 n3 n4 n5 n6 n7 n8 n9 n10 n11 n12 n n14 n15 n16 n17 n18 n19 n20 n21 n22 n23 n24 n

7 DRAFT ONLY 4 DRAFT ONLY TABLE 3.3 REFERENCE OUTDOOR TEMPERATURE BIN DISTRIBUTION FOR COLD ZONE Bin number j Outdoor temperature tj C Fractional Bin ours nj Reference (nj n1 n2 n3 n4 n5 n6 n7 n8 n9 n10 n11 n12 n Bin number j Outdoor temperature tj C Fractional Bin ours nj n14 n15 n16 n17 n18 n19 n20 n21 n22 n23 n24 n25 Total Reference (nj Delete Item b 2 of Formula 11 and replace wit te following: Fullcapacityoperation L t t X t F t t j PL j 1 t j ful, f j j ful, f j in Formula (11 Pt P t j ful, f j Annex A Delete Figures A.1, A.2, A.3 and A.4 and replace wit te following:

8 DRAFT ONLY 5 DRAFT ONLY CAPACITY or LOAD, W POWER INPUT, W (7,f (2 (-7 ( (7 (2 (-7,f,f t 100 L t o OUTDOOR TEMPERATURE, C t j FIGURE A.1 HEATING CAPACITY, POWER INPUT AND LOAD FOR FIXED CAPACITY UNITS

9 DRAFT ONLY 6 DRAFT ONLY CAPACITY or LOAD, W POWER INPUT, W (7,f (2 (-7 (7,f (2 (-7 ( (7,f (2 (-7 (7,f (2 (-7,f,f L,f,f t t o t j OUTDOOR TEMPERATURE, C FIGURE A.2 HEATING CAPACITY, POWER INPUT AND LOAD FOR TWO-STAGE CAPACITY UNITS

10 DRAFT ONLY 7 DRAFT ONLY P ext CAPACITY or LOAD, W POWER INPUT, W P ext,f (2 (7 P ext (-7 (-7 P af (7 P af (-7 (7 (-7 (7 Φ ext,f ( (7 Φ ext (-7 Φ af (7 (-7 (7 Φ af (-7 (-7 L,f Φ af,f,f P ext,f,f P af,f,f Φ ext,f P af Φ ext Φ af t t t f 0 t g 2 t d t e t q 7 t r t a t j t o OUTDOOR TEMPERATURE, C FIGURE A.3 HEATING CAPACITY, POWER INPUT AND LOAD FOR MULTI-STAGE CAPACITY UNITS

11 DRAFT ONLY 8 DRAFT ONLY COEFFECIENT of PERFROMANCE (COP C OP,min (t q C OP,m C OP,af (t d C OP,af,f (t e C OP,m,f C OP,full,f (t g C OP,t,f C OP,ext,f (t f C OP,fe,f P ext CAPACITY or LOAD, W POWER INPUT, W P ext,f (2 (7 P ext (-7 (-7 P af (7 P af (-7 (7 (-7 (7 Φ ext,f ( (7 Φ ext (-7 Φ af (7 (-7 (7 Φ af (-7 (-7 L,f Φ af,f,f P ext,f,f P af,f,f t 100 Φ ext,f P af Φ ext Φ af -7 t t f 0 t g 2 t d t e 7 t r t a t q t o OUTDOOR TEMPERATURE, C t j Annex B FIGURE A.4 HEATING CAPACITY, POWER INPUT, LOAD AND COP FOR VARIABLE CAPACITY UNITS B.2 Insert te following sentence at te beginning of te first paragrap of B.2: If te electric power consumption during inactive mode can be reliably determined by evaluation of control systems, tis may be used as an alternative to te full pysical tests of tis Annex. B.3 Delete te last paragrap of B.3 and replace wit te following: Te default mode ours for te calculation of reference total eating seasonal performance factor are sown in Tables B.2.1, B.2.2 and B.2.3. Te calculation of total eating seasonal performance factor may also be undertaken for oter distributions of mode ours.

12 DRAFT ONLY 9 DRAFT ONLY Table B.2 Delete Table B.2 and replace wit te following tree tables: TABLE B.2.1 DEFAULT HOURS BY MODE FOR THE CALCULATION OF REFERENCE TOTAL HEATING SEASONAL PERFORMANCE FACTOR FOR THE HOT/HUMID ZONE Unit Active mode Inactive mode, Hia Disconnected mode Heating only unit Reversible unit 277 (Cooling operation: TABLE B.2.2 DEFAULT HOURS BY MODE FOR THE CALCULATION OF REFERENCE TOTAL HEATING SEASONAL PERFORMANCE FACTOR FOR THE MIXED ZONE Unit Active mode Inactive mode, Hia Disconnected mode Heating only unit Reversible unit 1291 (Cooling operation: TABLE B.2.3 DEFAULT HOURS BY MODE FOR THE CALCULATION OF REFERENCE TOTAL HEATING SEASONAL PERFORMANCE FACTOR FOR THE COLD ZONE Unit Active mode Inactive mode, Hia Disconnected mode Heating only unit Reversible unit 2660 (Cooling operation:

13 DRAFT ONLY 10 DRAFT ONLY AMDT No. 1 Appendix ZA Add new Appendix ZA. APPENDIX ZA DEVELOPMENT OF THE AUSTRALIAN/NEW ZEALAND CLIMATE FILES ZA1 HOT/HUMID ZONE FILES (Informative Te ot/umid zone (see Figure ZA1 file is based on te 2016 NatHERS TMY(A file for Rockampton, Queensland. Rockampton is situated on te Tropic of Capricorn and is located geograpically and meteorologically between te milder climates of te eavily populated sout-east of te zone and te sparsely populated nortern tropical areas. Te eating season for te ot/umid zone is considered to be from 1 June to 30 September and all ours during tis period are tallied. Heating condition temperatures tat occur outside tese monts are not considered. To account for te likeliood of a residential user turning on teir unit in response to te outdoor temperature, a percentage was applied to eac bin s total, as per Table ZA1. At milder temperatures, tere is a reduced proportion of ours counted. Te percentage increases as te temperature drops, as colder conditions increase te likeliood of eating being used. ZA2 MIXED ZONE FILES Te mixed zone file (see Figure ZA1 is based on te 2016 NatHERS TMY(A file for Ricmond, New Sout Wales. Te mixed zone covers a large population and represents areas were bot very ot and very cold weater can be encountered. As eating performance at H2 is important for determining seasonal performance, it is desirable to ave a representative location tat as an adequate number of at lower temperatures for tis performance to be demonstrated. Coastal locations tend to ave milder overnigt temperatures, so Ricmond, wic is sligtly inland, allows te calculation of seasonal performance at bot low and ig temperatures. Te eating season for te mixed zone is considered to be from 1 May to 30 September and all ours during tis period are tallied. Heating condition temperatures tat occur outside tese monts are not considered. To account for te likeliood of a residential user turning on teir unit in response to te outdoor temperature, a percentage was applied to eac bin s total, as per Table ZA1. At milder temperatures, tere is a reduced proportion of ours counted. Te percentage increases as te temperature drops, as colder conditions increase te likeliood of eating being used. ZA3 COLD ZONE FILES Te cold zone file (see Figure ZA1 is based on te TMY(A file for Canberra in te Australian Capital Territory. In addition to a ig annual eating load, Canberra experiences many witin te critical frosting temperature range. Locations closer to te coast, wile still aving a ig annual eating load, will not adequately demonstrate seasonal energy consumption tat reflects H2 performance. Canberra also as a sufficient number of cooling ours to allow meaningful cooling performance to be demonstrated. Tis is not te case for te colder, largely unpopulated alpine and sub-alpine regions or New Zealand.

14 DRAFT ONLY 11 DRAFT ONLY Te eating season for te cold zone is considered to be 1 April to 31 October and all ours during tis period are tallied. Heating condition temperatures tat occur outside tese monts are not considered. To account for te likeliood of a residential user turning on teir unit in response to te outdoor temperature, a percentage was applied to eac bin s total, as per Table ZA1. At milder temperatures, tere is a reduced proportion of ours counted. Te percentage increases as te temperature drops, as colder conditions increase te likeliood of eating being used. LEGEND: Wite = ot/umid zone Grey = mixed zone Black = cold zone FIGURE ZA1 VISUAL REPRESENTATION OF THE THREE CLIMATE ZONES USED FOR AUSTRALIA AND NEW ZEALAND

15 DRAFT ONLY 12 DRAFT ONLY TABLE ZA1 FRACTION OF HEATING SEASON HOURS INCORPORATED INTO TEMPERATURE BIN DISTRIBUTION TABLES Bin number j Outdoor temperature tj C Fraction of raw ours counted *** END OF DRAFT ***

16 PREPARATION OF JOINT AUSTRALIAN/NEW ZEALAND STANDARDS Joint Australian/New Zealand Standards are prepared by a consensus process involving representatives nominated by organizations in bot countries drawn from all major interests associated wit te subject. Australian/New Zealand Standards may be derived from existing industry Standards, from establised international Standards and practices or may be developed witin a Standards Australia, Standards New Zealand or joint tecnical committee. During te development process, Australian/New Zealand Standards are made available in draft form at all sales offices and troug affiliated overseas bodies in order tat all interests concerned wit te application of a proposed Standard are given te opportunity to submit views on te requirements to be included. Te following interests are represented on te committee responsible for tis draft Australian/ New Zealand Standard: Airconditioning and Refrigeration Equipment Manufacturers Association of Australia Australian Building Codes Board Australian Industry Group CHOICE Clean Energy Regulator Consumer Electronics Association of New Zealand Consumer Electronics Suppliers Association CSIRO Department of te Environment and Energy Electrical Compliance Testing Association Energy Safe Victoria Institute of Refrigeration Heating and AirConditioning Engineers of New Zealand Te University of New Sout Wales

17 Standards Australia Standards Australia is an independent company, limited by guarantee, wic prepares and publises most of te voluntary tecnical and commercial standards used in Australia. Tese standards are developed troug an open process of consultation and consensus, in wic all interested parties are invited to participate. Troug a Memorandum of Understanding wit te Commonwealt government, Standards Australia is recognized as Australia s peak national standards body. Standards New Zealand Te first national Standards organization was created in New Zealand in Te New Zealand Standards Executive is establised under te Standards and Accreditation Act 2015 and is te national body responsible for te production of Standards. Australian/New Zealand Standards Under a Memorandum of Understanding between Standards Australia and Standards New Zealand, Australian/New Zealand Standards are prepared by committees of experts from industry, governments, consumers and oter sectors. Te requirements or recommendations contained in publised Standards are a consensus of te views of representative interests and also take account of comments received from oter sources. Tey reflect te latest scientific and industry experience. Australian/New Zealand Standards are kept under continuous review after publication and are updated regularly to take account of canging tecnology. International Involvement Standards Australia and Standards New Zealand are responsible for ensuring tat te Australian and New Zealand viewpoints are considered in te formulation of international Standards and tat te latest international experience is incorporated in national and Joint Standards. Tis role is vital in assisting local industry to compete in international markets. Bot organizations are te national members of ISO (te International Organization for Standardization and IEC (te International Electrotecnical Commission. Visit our web sites