Standard
Track updates
AS/NZS ISO 5151:2023
[Current]Non-ducted air conditioners and heat pumps — Testing and rating for performance
AS/NZS ISO 5151:2022 identically adopts ISO 5151:2017 and its Amendment No. 1, which specify performance testing, the standard conditions and the test methods for determining the capacity and efficiency ratings of air-cooled air conditioners and air-to-air heat pumps. Applies to non-ducted air-cooled air conditioners and non-ducted air-to-air heat pumps.
Published: 17/02/2023
Pages: 77
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Cooling tests
5.1 Cooling capacity test
5.1.1 General conditions
5.1.1.1
5.1.1.2
5.1.2 Temperature conditions
5.1.2.1
5.1.2.2
5.1.2.3
5.1.2.4
5.1.2.5
5.1.3 Airflow conditions
5.1.3.1 Indoor-side air quantity — Air enthalpy test method
5.1.3.1.1
5.1.3.1.2
5.1.3.2 Outdoor-side air quantity
5.1.4 Test conditions
5.1.4.1 Preconditions
5.1.4.1.1
5.1.4.1.2
5.1.4.1.3
5.1.4.2 Testing requirements
5.1.4.3 Duration of test
5.2 Maximum cooling performance test
5.2.1 General conditions
5.2.2 Temperature conditions
5.2.3 Airflow conditions
5.2.4 Test conditions
5.2.4.1 Preconditions
5.2.4.2 Duration of test
5.2.5 Performance requirements
5.2.5.1
5.2.5.2
5.2.5.3
5.3 Minimum cooling, freeze-up air blockage and freeze-up drip performance tests
5.3.1 General conditions
5.3.2 Temperature conditions
5.3.3 Airflow conditions
5.3.4 Test conditions
5.3.4.1 Preconditions
5.3.4.2 Duration of test
5.3.5 Performance requirements
5.3.5.1
5.3.5.2
5.3.5.3
5.4 Freeze-up drip performance test
5.4.1 General conditions
5.4.2 Temperature conditions
5.4.3 Airflow conditions
5.4.3.1 Preconditions
5.4.3.2 Duration of test
5.4.4 Performance requirements
5.5 Condensate control and enclosure sweat performance test
5.5.1 General conditions
5.5.2 Temperature conditions
5.5.3 Airflow conditions
5.5.4 Test conditions
5.5.4.1 Preconditions
5.5.4.2 Duration of test
5.5.5 Performance requirements
5.5.5.1
5.5.5.2
6 Heating tests
6.1 Heating capacity tests
6.1.1 General conditions
6.1.1.1
6.1.1.2
6.1.1.3
6.1.1.4
6.1.1.5
6.1.1.6
6.1.2 Temperature conditions
6.1.2.1
6.1.2.2
6.1.2.3
6.1.2.4
6.1.3 Airflow conditions
6.1.3.1 Heat pump set-up requirements
6.1.3.2 Requirements when using the indoor air enthalpy method
6.1.4 Defrost operation
6.1.4.1
6.1.4.2
6.1.5 Test procedure — General
6.1.5.1
6.1.5.2
6.1.6 Preconditioning period
6.1.6.1
6.1.6.2
6.1.6.3
6.1.7 Equilibrium period
6.1.7.1
6.1.7.2
6.1.8 Data collection period
6.1.8.1
6.1.8.2
6.1.8.3
6.1.8.4
6.1.8.5
6.1.8.6
6.1.8.7
6.1.9 Test procedure when a defrost cycle (whether automatically or manually initiated) ends the preconditioning period
6.1.9.1
6.1.9.2
6.1.10 Test procedure when a defrost cycle does not end the preconditioning period
6.1.10.1
6.1.10.2
6.1.10.3
6.1.10.4
6.1.11 Test procedure for transient tests
6.1.11.1
6.1.11.2
6.1.11.3
6.1.11.4
6.1.11.5
6.1.11.6
6.1.12 Heating capacity test results
6.2 Maximum heating performance test
6.2.1 General conditions
6.2.2 Temperature conditions
6.2.3 Airflow conditions
6.2.4 Test conditions
6.2.4.1 Preconditions
6.2.4.2 Duration of the test
6.2.5
6.3 Minimum heating performance test
6.3.1 General conditions
6.3.2 Temperature conditions
6.3.3 Airflow conditions
6.3.4 Test condition
6.3.4.1 Preconditions
6.3.4.2 Duration of test
6.3.5 Performance requirements
6.4 Automatic defrost performance test
6.4.1 General conditions
6.4.2 Temperature conditions
6.4.3 Airflow conditions
6.4.4 Test conditions
6.4.4.1 Duration of test
6.4.5 Performance requirements
7 Test methods and uncertainties of measurements
7.1 Test methods
7.1.1 General
7.1.2 Calorimeter test method
7.1.2.1
7.1.2.2
7.1.3 Indoor air enthalpy test method
7.1.3.1
7.1.3.2
7.1.4 Capacity tests
7.2 Uncertainties of measurement
7.2.1
7.2.2
7.2.3
7.2.4
7.3 Test tolerances for steady-state cooling and heating tests
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
7.4 Test tolerances for performance tests
8 Test results
8.1 Capacity results
8.1.1 General
8.1.2 Adjustments
8.1.2.1
8.1.2.2
8.1.3 Cooling capacity calculations
8.1.3.1
8.1.3.2
8.1.4 Heating capacity calculations
8.1.4.1 Steady-state capacity tests
8.1.4.1.1
8.1.4.1.2
8.1.4.1.3
8.1.4.2 Transient capacity tests
8.1.4.2.1
8.1.4.2.2
8.1.4.2.3
8.2 Data to be recorded
8.3 Test report
8.3.1 General information
8.3.2 Capacity tests
8.3.3 Performance tests
8.3.3.1
8.3.3.2
8.3.3.3
8.3.3.4
8.3.3.5
8.3.3.6
8.3.3.7
9 Marking provisions
9.1 Nameplate requirements
9.2 Nameplate information
9.3 Split systems
10 Publication of ratings
10.1 Standard ratings
10.1.1
10.1.2
10.1.3
10.1.4
10.2 Other ratings
Annex A
A.1 General test room requirements
A.1.1
A.1.2
A.1.3
A.2 Equipment installation
A.2.1
A.2.2
A.2.3
A.2.4
A.2.5
Annex B
B.1 Airflow determination
B.1.1
B.1.2
B.2 Airflow and static pressure
B.3 Nozzle apparatus
B.3.1
B.3.2
B.3.3
B.3.4
B.3.5
B.3.5.1
B.3.5.2
B.3.5.3
B.3.5.4
B.4 Static pressure measurements
B.4.1
B.4.2
B.5 Discharge airflow measurements
B.5.1
B.5.2
B.6 Indoor-side airflow measurements
B.6.1
B.6.2
B.6.3
B.7 Ventilation, exhaust and leakage airflow measurements — Calorimeter test method
B.7.1
B.7.2
B.7.3
Annex C
C.1 General
C.1.1
C.1.2
C.1.3
C.1.4
C.1.5
C.1.6
C.1.7
C.1.8
C.1.9
C.1.10
C.1.11
C.2 Calibrated room-type calorimeter
C.2.1
C.2.2
C.2.3
C.2.4
C.3 Balanced ambient room-type calorimeter
C.3.1
C.3.2
C.3.3
C.3.4
C.4 Calculation of cooling capacity
C.4.1
C.4.2
C.4.3
C.4.4
C.4.5
C.4.6
C.4.7
C.4.8
C.4.9
C.4.10
C.5 Calculation of heating capacity
C.5.1
C.5.2
C.5.3
Annex D
D.1 General
D.2 Application
D.2.1
D.2.2
D.2.3
D.2.4
D.3 Calculation of cooling capacity
D.4 Calculation of heating capacity
D.5 Airflow enthalpy measurements
D.5.1 General
D.5.2 Tunnel air enthalpy method
D.5.3 Loop air enthalpy method
D.5.4 Calorimeter air enthalpy method
Annex E
E.1 General description
E.1.1
E.1.2
E.1.3
E.1.4
E.2 Refrigerant flow method
E.2.1
E.2.2
E.2.3
E.3 Refrigerant temperature and pressure measurements
E.4 Calculation of cooling capacity
E.5 Calculation of heating capacity
Annex F
F.1 General
F.1.1
F.1.2
F.2 Test room requirements
F.2.1
F.2.2
F.2.3
F.3 Testing conditions
F.4 Calculations
F.4.1
F.4.2
F.4.3
Annex G
G.1 General
G.1.1
G.1.2
G.2 Test room requirements
G.3 Measurement
G.3.1
G.3.2
Annex H
H.1 General
H.1.1
H.1.2
H.2 Test room requirements
H.3 Measurement
H.3.1
H.3.2
Annex I
I.1 General
I.1.1
I.1.2
I.1.3
I.2 Measurement
I.2.1
I.2.2
I.2.3
Annex J
J.1 General
J.2 Calculations
J.2.1
J.2.2
Annex K
K.1 General
K.2 Procedure flow chart for heating capacity test
Bibliography
Amendment 1
Cited references in this standard
[Current]
Uncertainty of measurement - Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) - SUPPLEMENT 2: Extension to any number of output quantities
Content history
[Current]
[Current]
[Available Superseded]
DR AS/NZS ISO 5151:2022
One-time Purchase
Access via web browser on any device
One-time purchase
Single publication
Offline access via PDF^
$259.88 AUD
Inclusive of GSTFormat *
Web Reader
Licenses *
1 user
Total$259.88 AUD
IMPORTANT