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103934 AS NZS 3823.4.2 2014 Amdt 1 Public Comment.doc - 11/10/2016 13:27:37

COMMITTEE EL-056

DR AS/NZS 3823.4.2:2014 Amd 1:2016

(Project ID: 103934)

Draft for Public Comment Australian/New Zealand Standard LIABLE TO ALTERATION—DO NOT USE AS A STANDARD

BEGINNING DATE FOR COMMENT:

18 October 2016

CLOSING DATE FOR COMMENT:

20 December 2016

Important: The procedure for public comment has changed – please read the instructions on the inside cover of this document.

Amendment 1 to AS/NZS 3823.4.2:2014 Performance of electrical appliances—Air conditioners and heat pumps Part 4.2: Air-cooled air conditioners and air-to-air heat pumps—Testing and calculating methods for seasonal performance factors—Heating seasonal performance factor (ISO 16358-2:2013 (MOD))

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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 heat pumps

Part 4.2: Air-cooled air conditioners and air-to-air heat pumps—Testing and calculating methods for seasonal performance factors—Heating seasonal

performance factor (ISO 16358-2:2013 (MOD))

(Amendment 1 to AS/NZS 3823.4.2:2014)

Comment on the draft is invited from people and organizations concerned with this subject. It would be appreciated if those submitting comment would follow the guidelines given on the inside front cover.

Important: The procedure for public comment has changed – please read the instructions on the inside cover of this document

This document is a draft Australian/New Zealand Standard only and is liable to alteration in the light of comment received. It is not to be regarded as an Australian/New Zealand Standard until finally issued as such by Standards Australia/Standards New Zealand.

DRAFT ONLY 1 DRAFT ONLY


AS/NZS 3823.4.2/Amdt 1/

STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND

Amendment No. 1 to

AS/NZS 3823.4.2:2014 Performance of electrical appliances—Air conditioners and heat pumps

Part 4.2: Air-cooled air conditioners and air-to-air heat pumps—Testing and calculating methods for seasonal performance factors—Heating seasonal performance

factor (ISO 16358-2:2013 (MOD))

REVISED TEXT

The 2014 edition of AS/NZS 3823.4.2 is amended as follows; the amendments should be inserted in the appropriate places.

SUMMARY: This Amendment applies to the Preface, Appendix ZZ and Appendix ZA (new)

Published on . Approved for publication in New Zealand on behalf of the Standards Council of New Zealand on

Preface

At the end of the third paragraph, add the following sentence:

Appendix ZA has been added to provide information on the development of the climate files for Australia and New Zealand.

Appendix ZZ

ZZ2 Delete the text of Paragraph ZZ2 and replace with the following:

The following modifications are required for Australian/New Zealand conditions:

3.12 Delete the definition in Clause 3.12 and replace with the following:

heating full-load operation

operation with the equipment and controls configured for maximum continuous refrigeration capacity at H1, H2 or H3 conditions, the compressor setting is the same for all conditions

3.13 Delete the definition in Clause 3.13 and replace with the following: heating extended-load operation

operation of the equipment at maximum continuous refrigeration capacity at a higher compressor capacity than full-load operation at H2 or H3 conditions, where this mode is available

6.2 Third paragraph, delete the equation and replace with the following: 0 10015 C and 0 Ct t

6.3 After the third paragraph, add the following text: The calculation of Australian and New Zealand cooling and heating seasonal

performance factors is based on temperature bin distributions for three reference climate files. They are derived from the 2016 Nationwide House Energy Rating Scheme (NatHERS) climate files. These consist of a typical meteorological year (TMY) file compiled from raw Bureau of Meteorology climate data.

AMDT No. 1

AMDT No. 1



Table 3 Delete Table 3 and replace with the following three tables:

TABLE 3.1

REFERENCE OUTDOOR TEMPERATURE BIN DISTRIBUTION FOR ‘HOT/HUMID’ ZONE

Bin number j

1 2 3 4 5 6 7 8 9 10 11 12 13

Outdoor temperature tj °C

10 9 8 7 6 5 4 3 2 1 0 1 2

Fractional bin hours

0 0 0 0 0 0 0 0 0 0 0 0 0

Bin hours nj n1 n2 n3 n4 n5 n6 n7 n8 n9 n10 n11 n12 n13

Reference bin hours (nj)

0 0 0 0 0 0 0 0 0 0 0 0 0

Bin number j

14 15 16 17 18 19 20 21 22 23 24 25

Total


3 4 5 6 7 8 9 10 11 12 13 14


0.004 0.014 0.036 0.061 0.105 0.108 0.191 0.155 0.108 0.094 0.069 0.054

Bin hours nj n14 n15 n16 n17 n18 n19 n20 n21 n22 n23 n24 n25


1 4 10 17 29 30 53 43 30 26 19 15 277



TABLE 3.2

REFERENCE OUTDOOR TEMPERATURE BIN DISTRIBUTION FOR ‘MIXED’ ZONE

Bin number j

1 2 3 4 5 6 7 8 9 10 11 12 13


10 9 8 7 6 5 4 3 2 1 0 1 2


0 0 0 0 0 0 0.001 0.001 0.003 0.007 0.018 0.029 0.036

Bin hours nj

n1 n2 n3 n4 n5 n6 n7 n8 n9 n10 n11 n12 n13


0 0 0 0 0 0 1 1 4 9 23 37 47

Bin number j

14 15 16 17 18 19 20 21 22 23 24 25


3 4 5 6 7 8 9 10 11 12 13 14


0.050 0.084 0.077 0.102 0.099 0.095 0.111 0.087 0.080 0.061 0.041 0.020

Bin hours nj

n14 n15 n16 n17 n18 n19 n20 n21 n22 n23 n24 n25


64 108 99 132 128 122 143 112 103 79 53 26 1291



TABLE 3.3

REFERENCE OUTDOOR TEMPERATURE BIN DISTRIBUTION FOR ‘COLD’ ZONE

Bin number j

1 2 3 4 5 6 7 8 9 10 11 12 13


10 9 8 7 6 5 4 3 2 1 0 1 2


0 0 0 0 0.001 0.005 0.008 0.017 0.020 0.026 0.029 0.044 0.045

Bin hours nj

n1 n2 n3 n4 n5 n6 n7 n8 n9 n10 n11 n12 n13


0 0 0 0 3 13 22 44 54 69 77 116 121

Bin number j

14 15 16 17 18 19 20 21 22 23 24 25

Total


3 4 5 6 7 8 9 10 11 12 13 14


0.059 0.064 0.081 0.089 0.123 0.098 0.092 0.071 0.061 0.038 0.020 0.009

Bin hours nj

n14 n15 n16 n17 n18 n19 n20 n21 n22 n23 n24 n25


156 169 216 238 327 262 245 189 163 101 52 23 2660

6.4.4 Delete Item b) 2) of Formula 11 and replace with the following: h j ful, jFullcapacityoperation fL t t

j PL j 1X t F t

j ful, jft t in Formula (11)

j ful, jfP t P t

Annex A Delete Figures A.1, A.2, A.3 and A.4 and replace with the following:



OUTDOOR TEMPERATURE, °C

CA

PA

CIT

Y o

r L

OA

D,

WP

OW

ER

IN

PU

T,

W

t j

t100

P fu l(-7)

P fu l(7)

P fu l , f(2)

Φ fu l(7)

Φ fu l(-7)

Φ fu l(2)

0.82 × Φ fu l(7)

-7 0 2 5.5 7 10 to

Lh(t j)

Φ fu l(t j)

Φ fu l , f(t j)

P fu l(t j)

P fu l , f(t j)

FIGURE A.1 HEATING CAPACITY, POWER INPUT AND LOAD FOR FIXED CAPACITY UNITS




CA

PA

CIT

Y o

r L

OA

D,

WP

OW

ER

IN

PU

T,

W

t j

to

t100

P fu l(-7)

P fu l(7)

Pmin(7)

Pmin(-7)

P fu l , f(2)

Pmin,f(2)

Φ fu l(-7)

Φ min(-7)

Φ min(7)

Φ fu l(7)

Φ min,f(2)

Φ fu l , f(2)0.82 × Φ fu l(7)

-7 0 2 5.5 7 10

Lh(t j)

Φ fu l(t j)

Φ min(t j)Φ fu l , f(t j)

Φ min,f(t j)

P fu l(t j)

Pmin(t j)P fu l , f(t j)

Pmin,f(t j)

FIGURE A.2 HEATING CAPACITY, POWER INPUT AND LOAD FOR TWO-STAGE CAPACITY UNITS




CA

PA

CIT

Y o

r L

OA

D,

WP

OW

ER

IN

PU

T,

W

t j

t h t f tg td te t r

t100

tq

ta

P fu l(7)

P haf(7)

P haf(-7)

P fu l(-7)

Pmin(7)

Pmin(-7)

Pex t ,f(2)

Pex t(-7)

Φ min(-7)

Φ fu l(7)

Φ haf(7)

Φ min(7)Φ haf(-7)

Φex t ,f(2)

Φ fu l(-7)

Φex t(-7)0.82 × Φ fu l(7)

-7 0 25.5

7 10

Φ fu l(t j)

Φex t(t j)

Φ min(t j)

Φ haf(t j)

Φ min,f(t j)

Φ haf,f(t j)

Φ fu l , f(t j)

Φex t ,f(t j)

P fu l(t j)

Pex t(t j)

Pmin(t j)

P haf(t j)P fu l , f(t j)

Pex t ,f(t j)

Pmin,f(t j)

P haf,f(t j)

Lh(t j)

to

FIGURE A.3 HEATING CAPACITY, POWER INPUT AND LOAD FOR MULTI-STAGE CAPACITY UNITS




CA

PA

CIT

Y o

r L

OA

D,

WP

OW

ER

IN

PU

T,

WC

OE

FF

EC

IEN

T o

fP

ER

FR

OM

AN

CE

(CO

P)

t j

t h t f tg td te t rtq

ta

P fu l(7)

P haf(7)

P haf(-7)

P fu l(-7)

Pmin(7)

Pmin(-7)

Pex t ,f(2)

COP,ex t ,f(t f)

COP,haf,f(te)COP,haf(td)COP,min(tq) COP,mh(t j)

COP,mh,f(t j)COP,ht ,f(t j)COP,fe,f(t j)

COP,fu l l , f(tg)

Pex t(-7)

Φ min(-7)

Φ fu l(7)

Φ haf(7)

Φ min(7)Φ haf(-7)

Φex t ,f(2)

Φ fu l(-7)

Φex t(-7)0.82 × Φ fu l(7)

-7 0 2

5.5

7 10

Φ fu l(t j)

Φex t(t j)

Φ min(t j)

Φ haf(t j)

Φ min,f(t j)

Φ haf,f(t j)

Φ fu l , f(t j)

Φex t ,f(t j)

P fu l(t j)

Pex t(t j)

Pmin(t j)

P haf(t j)P fu l , f(t j)

Pex t ,f(t j)

Pmin,f(t j)

P haf,f(t j)

Lh(t j)

to

t100

FIGURE A.4 HEATING CAPACITY, POWER INPUT, LOAD AND COP FOR VARIABLE CAPACITY UNITS

Annex B

B.2 Insert the following sentence at the beginning of the first paragraph of B.2:

If the electric power consumption during inactive mode can be reliably determined by evaluation of control systems, this may be used as an alternative to the full physical tests of this Annex.

B.3 Delete the last paragraph of B.3 and replace with the following:

The default mode hours for the calculation of reference total heating seasonal performance factor are shown in Tables B.2.1, B.2.2 and B.2.3. The calculation of total heating seasonal performance factor may also be undertaken for other distributions of mode hours.



Table B.2 Delete Table B.2 and replace with the following three 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

h

Inactive mode, Hia

h

Disconnected mode

h

Heating only unit 277 6236 2247

Reversible unit 277

(Cooling operation: 2247) 6236 0

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

h

Inactive mode, Hia

h

Disconnected mode

h


Reversible unit 1291


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

h

Inactive mode, Hia

h

Disconnected mode

h


Reversible unit 2660




Appendix ZA

Add new Appendix ZA.

APPENDIX ZA

DEVELOPMENT OF THE AUSTRALIAN/NEW ZEALAND CLIMATE FILES

(Informative)

ZA1 HOT/HUMID ZONE FILES

The ‘hot/humid’ zone (see Figure ZA1) file is based on the 2016 NatHERS TMY(A) file for Rockhampton, Queensland. Rockhampton is situated on the Tropic of Capricorn and is located geographically and meteorologically between the milder climates of the heavily populated south-east of the zone and the sparsely populated northern tropical areas.

The heating season for the hot/humid zone is considered to be from 1 June to 30 September and all hours during this period are tallied. Heating condition temperatures that occur outside these months are not considered.

To account for the likelihood of a residential user turning on their unit in response to the outdoor temperature (tj), a percentage was applied to each bin’s total, as per Table ZA1. At milder temperatures, there is a reduced proportion of hours counted. The percentage increases as the temperature drops, as colder conditions increase the likelihood of heating being used.

ZA2 MIXED ZONE FILES

The ‘mixed’ zone file (see Figure ZA1) is based on the 2016 NatHERS TMY(A) file for Richmond, New South Wales. The mixed zone covers a large population and represents areas where both very hot and very cold weather can be encountered. As heating performance at H2 is important for determining seasonal performance, it is desirable to have a representative location that has an adequate number of bin hours at lower temperatures for this performance to be demonstrated. Coastal locations tend to have milder overnight temperatures, so Richmond, which is slightly inland, allows the calculation of seasonal performance at both low and high temperatures.

The heating season for the mixed zone is considered to be from 1 May to 30 September and all hours during this period are tallied. Heating condition temperatures that occur outside these months are not considered.


ZA3 COLD ZONE FILES

The ‘cold’ zone file (see Figure ZA1) is based on the TMY(A) file for Canberra in the Australian Capital Territory. In addition to a high annual heating load, Canberra experiences many bin hours within the critical frosting temperature range. Locations closer to the coast, while still having a high annual heating load, will not adequately demonstrate seasonal energy consumption that reflects H2 performance. Canberra also has a sufficient number of cooling hours to allow meaningful cooling performance to be demonstrated. This is not the case for the colder, largely unpopulated alpine and sub-alpine regions or New Zealand.

AMDT No. 1



The heating season for the cold zone is considered to be 1 April to 31 October and all hours during this period are tallied. Heating condition temperatures that occur outside these months are not considered.


LEGEND: White = hot/humid zone Grey = mixed zone Black = cold zone

FIGURE ZA1 VISUAL REPRESENTATION OF THE THREE CLIMATE ZONES USED FOR AUSTRALIA AND NEW ZEALAND



TABLE ZA1

FRACTION OF HEATING SEASON HOURS INCORPORATED INTO TEMPERATURE BIN DISTRIBUTION TABLES

Bin number j Outdoor temperature tj °C Fraction of raw hours counted

1 10 0.95

2 9 0.95

3 8 0.95

4 7 0.95

5 6 0.95

6 5 0.95

7 4 0.95

8 3 0.95

9 2 0.95

10 1 0.95

11 0 0.95

12 1 0.95

13 2 0.95

14 3 0.95

15 4 0.95

16 5 0.95

17 6 0.90

18 7 0.80

19 8 0.70

20 9 0.60

21 10 0.50

22 11 0.40

23 12 0.30

24 13 0.20

25 14 0.10

*** END OF DRAFT ***

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The following interests are represented on the committee responsible for this 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 the Environment and Energy

Electrical Compliance Testing Association

Energy Safe Victoria

Institute of Refrigeration Heating and AirConditioning Engineers of New Zealand

The University of New South Wales

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