ISO 16358-1:2013/Amd 1:2019

INTERNATIONAL ISO
STANDARD 16358-1
First edition
2013-04-15
AMENDMENT 1
2019-04
Air-cooled air conditioners and air-
to-air heat pumps — Testing and
calculating methods for seasonal
performance factors —
Part 1:
Cooling seasonal performance factor
AMENDMENT 1
Climatiseurs à condenseur à air et pompes à chaleur air/air — Essais
et méthodes de calcul des coefficients de performance saisonniers —
Partie 1: Coefficient de performance saisonnier de refroidissement
(COPSR)
AMENDEMENT 1
Reference number
ISO 16358-1:2013/Amd.1:2019(E)
©
ISO 2019
ISO 16358-1:2013/Amd.1:2019(E)

© ISO 2019
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Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 16358-1:2013/Amd.1:2019(E)

Foreword
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This document was prepared by Technical Committee ISO/TC 86, Refrigeration and air-conditioning,
Subcommittee SC 6, Testing and rating of air-conditioners and heat pumps.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
ISO 16358-1:2013/Amd.1:2019(E)
Air-cooled air conditioners and air-to-air heat pumps —
Testing and calculating methods for seasonal performance
factors —
Part 1:
Cooling seasonal performance factor
AMENDMENT 1
Page 1, 1.2
Add “ and T3” after the words “the rating conditions are those specified under T1”.
Page 3, 3.13
Add “ or T3” after the words “cooling capacity at T1”.
Page 3, 3.14
Add “ or T3” after the words “electric power input at T1”.
Page 3, 3.15
Add “ or T3” after the words “capacity which is 50 % of cooling full capacity at T1”.
Page 3, 3.16
Add “ or T3” after the words “electric power input when operated at 50 % of cooling full capacity at T1”.
Page 3, 3.17
Add “ or T3” after the words “capacity at T1”.
Page 3, 3.18
Add “ or T3” electric power input at T1”.
Page 3, after 3.22
Add 3.23 and 3.24
ISO 16358-1:2013/Amd.1:2019(E)

3.23
T1 climate
standardized range of climate conditions for a moderate climate
3.24
T3 climate
standardized range of climate conditions for a hot climate
Page, 3, Clause 4 Symbols
Add the following row after C row
CSE
C degradation coefficient
D
Add the following row after P (t ) row
ful j
Pful(46) cooling full power input at T3 temperature condition W
Add the following row after P (t ) row
haf j
Phaf(46) cooling half power input at T3 temperature condition W
Add the following row after P (t ) row
min j
P (46) cooling minimum power input at T1 temperature condition W
min
Add the following row after ϕful(tj) row
ϕful(46) cooling full capacity at T3 temperature condition W
Add the following row after ϕhaf(tj) row
ϕhaf(46) cooling half capacity at T3 temperature condition W
Add the following row after ϕmin(tj) row
ϕmin(46) cooling minimum capacity at T3 temperature condition W
Page 5, 5.2 Test conditions
Add
“for units rated for T1 climate and Table F.1 in Annex F for units rated for T3 climate”
after
“for calculation shall be as specified in Table 1”
Page 6, 5.3.2 Low temperature cooling capacity tests
Add
“for T1 climate or Table F.1 for T3 climate”
after
“default values as given in Table 1”
2 © ISO 2019 – All rights reserved

ISO 16358-1:2013/Amd.1:2019(E)

Page 7, 5.3.3 Low humidity cooling test and cyclic cooling test
Add
“for T1 climate or Table F.1 for T3 climate”
after
“default values as given in Table 1”
Page 7, Clause 6 Calculations
Add the following sentences and Table after the first sentence:
For units rated for T1 climate, calculations shall be made according to Clause 6 and for units rated for
T3 climate, calculations shall be made according to F.2.
NOTE A calculation tool (spreadsheet) is available to perform all the calculations of Clause 6, given the
individual test input. It is available at https: //standards .iso .org/iso/16358/ -1/ed -1/en/amd/1. The issuer is
permitted to use the calculation tool in its original format without any modifications for the purpose specified in
this document.
Table 2 shows the formulae used for T1 climate and T3 climate in order to read this document more easily.
Table 2 — Formulae used to calculate CSPF and FCSP for T1 climate and T3 climate
T1 climate T3 climate
CSPF, FCSP (1) and Annex B (1) and Annex B
Cooling load L (t ) (2) with t = 20 °C and t = 35 °C (2) with t = 20 °C and t = 46 °C
c j 0 100 0 100
ϕ (t ) (3) (F.1), (F.2)
ful j
P (t ) (4) (F.3), (F.4)
ful j
Fixed
(CSTL), L (5) (5)
CST
(CSEC), C (6), (7), (8) (6), (7), (8)
CSE
ϕ (t ) (3) (F.1), (F.2)
ful j
ϕ (t ) (9) (F.5), (F.6)
min j
P (t ) (4) (F.3), (F.4)
ful j
Two-stage
P (t ) (10) (F.7), (F.8)
min j
(CSTL), L (5) (5)
CST
(CSEC), C (11), (7), (12), (13), (4) (11), (7), (12), (13), (4)
CSE
ϕ (t ) (3) (F.1), (F.2)
ful j
Φ (t ) (14) (F.9), (F.10)
haf j
ϕ (t ) (9) (F.5), (F.6)
min j
P (t ) (4) (F.3), (F.4)
ful j
P (t ) (15) (F.11), (F.12)
haf j
P (t ) (10) (F.7), (F.8)
min j
Multi-stage
(CSTL), L (5) (5)
CST
(CSEC), C when (16), (7), (17), (18), (19), (20), (4) (16), (7), (17), (18), (19), (20), (4)
CSE
minimum capaci- (Annex E) (Annex E)
ty available
(CSEC), C when (21), (7), (19), (20), (4) (21), (7), (19), (20), (4)
CSE
minimum capaci-
(Annex E) (Annex E)
ty not available
ISO 16358-1:2013/Amd.1:2019(E)

Table 2 (continued)
T1 climate T3 climate
ϕ (t ) (3) (F.1), (F.2)
ful j
Φ (t ) (14) (F.9), (F.10)
haf j
ϕ (t ) (9) (F.5), (F.6)
min j
P (t ) (4) (F.3), (F.4)
ful j
P (t ) (15) (F.11), (F.12)
haf j
P (t ) (10) (F.7), (F.8)
min j
Variable (CSTL), L (5) (5)
CST
(16), (7), (22), (23), (24), (25), (16), (7), (22), (23), (24), (25),
(CSEC), C when
CSE
(26),(27),(4) (26),(27),(4)
minimum capaci-
(Annex E) (F.13), (F.14), (F.15), (F.16),
ty available
(F.17), (F.18)
(CSEC), C when (21), (7), (24), (25), (26),(27),(4) (21), (7), (24), (25), (26),(27),(4)
CSE
minimum capaci-
(Annex E) (F.15), (F.16), (F.17), (F.18)
ty is not available
Page 7, 6.2
Replace “Table 2 — Defined cooling load”
with
“Table 3 — Defined cooling load”
Page 7, 6.3
Replace
“Table 3 — Reference outdoor temperature bin distribution for T1 climate”
with “Table 4 — Reference outdoor temperature bin distribution for T1 climate”
Page 13, Clause 7 Test report
Add the following sentence at the end of the last sentence of the Clause.
“It shall be specified whether the CSPF is for T1 climate, T3 climate or a location specific temperature
bin distribution.”
Annex A
Replace Figure A.1 — Cooling capacity, power input and cooling load for fixed capacity units, by the
following figure:
4 © ISO 2019 – All rights reserved

ISO 16358-1:2013/Amd.1:2019(E)

Key
X outdoor temperature
Y1 capacity or load
Y2 power input
Figure A.1 — Cooling capacity, power input and cooling load for fixed capacity units
Replace Figure A.2 — Cooling capacity, power input and cooling load for two-stage capacity units, by
the following figure:
ISO 16358-1:2013/Amd.1:2019(E)

Key
X outdoor temperature
Y1 capacity or load
Y2 power input
Figure A.2 — Cooling capacity, power input and cooling load for two-stage capacity units
Replace Figure A.3 — Cooling capacity, power input and cooling load for multi-stage capacity units, by
the following figure:
6 © ISO 2019 – All rights reserved

ISO 16358-1:2013/Amd.1:2019(E)

Key
X outdoor temperature
Y1 capacity or load
Y2 power input
Figure A.3 — Cooling capacity, power input and cooling load for multi-stage capacity units
Replace Figure A.4 — Cooling capacity, power input and cooling load and EER for variable capacity
units, by the following figure:
ISO 16358-1:2013/Amd.1:2019(E)

Key
X outdoor temperature
Y1 capacity or load
Y2 power input
Figure A.4 — Cooling capacity, power input and cooling load and EER for variable capacity units
Annex B
Page 19, B.2
Replace Table B.1 with the following table
Temperature condition 5 °C 10 °C 15 °C 20 °C
Weighting factor, T1 climate 0,05 0,13 0,27 0,55
Weighting factor, T3 climate 0,00 0,18 0,27 0,55
In the definition for H add “for T1 climate or Table B.3 for T3 climate” after “as given in Table B.2”.
ia
Page 19, B.3, second sentence
Add “and for T3 climate according to Annex F.”
after
8 © ISO 2019 – All rights reserved

ISO 16358-1:2013/Amd.1:2019(E)

“according to the main body of this document”.
Add “for T1 climate”
after
“Calculation of L and C is”
CST CSE
Page 20, B.3
Add “for T1 climate or Table B.3 for T3 climate”
after
“cooling seasonal performance factor are shown in Table B.2”.
Add Table B.3 after Table B.2
Table B.3 — Default hours for T3 climate by mode for the calculation of reference total cooling
seasonal performance factor
Active mode Inactive mode, H Disconnected mode
ia
Unit
h h h
Cooling only unit and
6 493 2 267 0
reversible unit
Annex C
Page 21, C.1
Replace the sentence “Testing condition for cyclic test is shown in Table C.1”
by
”Testing conditions for cyclic cooling tests are shown in Table C.1 for T1 climate and Table C.2 for T3
climate.”
Add new Table C.2.
Table C.2 — Temperature and humidity conditions for T3 climate cyclic cooling test
Indoor temperature Outdoor temperature
°C °C
Test
Dry-bulb Wet-bulb Dry-bulb Wet-bulb
A test:
27 13,9 or less 35 —
Steady, dry coil
B test:
27 13,9 or less 35 —
Cyclic, dry coil
The entering air to the unit shall have a low enough moisture content so that no condensate forms on the indoor coil. (It is
recommended that an indoor wet-bulb temperature of 13,9 °C or less be used.)
NOTE  Maintain the airflow nozzles static pressure difference or velocity pressure during the ON period at the same
pressure difference or velocity pressure as measured during the A test.
Add this sentence
“For T1climate and T3 climate, duration of ON and OFF interval of cyclic operation test is shown in
Table C.3”
ISO 16358-1:2013/Amd.1:2019(E)

after the new table C.2
Replace “Table C.2 — Duration of ON and OFF interval of cyclic operation test”
with
“Table C.3 — Duration of ON and OFF interval of cyclic operation test”
Page 22, C.2.2.1
Replace
“Table C.2”
with
“Table C.3”
in the sentence “Duration of ON and OFF interval shall be in accordance with Table C.2.”
Page 22, C.2.2.4, second paragraph
Replace
“Test tolerance of the dry-bulb temperature shall be ±2,5°CC on the indoor side and ±5 °C on the
outdoor side as specified in ISO 5151, ISO 13253 and ISO 15042.”
with
“Variation of individual readings of the dry-bulb temperature shall be ±2,5 K on the indoor side and
±5 K on the outdoor side and variation of arithmetical mean values of the dry-bulb temperature shall
be ±1,5 K on both the indoor and outdoor side as specified in ISO 5151, ISO 13253 and ISO 15042.”
Page 23, C.2.2.4, fifth paragraph
Add “for T1 climate and Table C.2 for T3 climate” after “A test and B test of Table C.1”.
Annex E, Page 25
Replace Annex E label “(informative)” to “(normative)”.
Add the following sentence after the title
“For units rated for T1 climate the following calculations apply. See Annex F for units rated for T3
climate.”
∅ 29 −∅ 35
() ()
fulful
Replace Formula (E.2) with “∅ tt=∅ 35 + ×−35
()
() ()
fulj ful j
35−29
()
Add the following new Annex F.
10 © ISO 2019 – All rights reserved

ISO 16358-1:2013/Amd.1:2019(E)

Annex F
(informative
...