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AS/NZS ISO 13256.2:2023
[Current]Water-source heat pumps — Testing and rating for performance, Part 2: Water-to-water and brine-to-water heat pumps
AS/NZS ISO 13256.2:2023 identically adopts ISO 13256 2, which establishes performance testing and rating criteria for factory-made residential, commercial and industrial, electrically-driven, mechanical- compression type, water-to-water and brine-to-water heat pumps
Published: 17/02/2023
Pages: 26
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
1.1
1.2
1.3
2 Normative references
3 Terms and definitions
4 Symbols
5 Rating and test conditions
5.1 Rating conditions for the determination of net capacities
5.1.1 Ratings
5.1.2 Load side liquid pump adjustment
5.1.2.1 Heat pump with non-integrated load side liquid pump
5.1.2.2 Heat pump with integrated load side liquid pump
5.1.3 Source side liquid pump adjustment
5.1.3.1 Heat pump with non-integrated source side liquid pump
5.1.3.2 Heat pump with integrated source side liquid pump
5.1.4 Liquid flow rates
5.1.4.1 General
5.1.4.2 Source side flowrate
5.1.4.3 Load side flowrate
5.1.4.3.1 Ratings where the leaving temperature on the load side is fixed
5.1.4.3.2 Rating where the leaving temperature on the load side is not fixed
5.1.5 Installation and connection of the unit
5.1.5.1 General
5.1.5.2 Requirements for separated assemblies
5.1.5.3 Measuring points
5.1.6 Test liquids
5.2 Rating test conditions for cooling and heating capacities
5.2.1
5.2.2
5.2.3
5.2.4
6 Performance Requirements
6.1 General
6.2 Maximum operating conditions test
6.2.1 Test conditions
6.2.2 Test procedures
6.2.3 Test requirements
6.3 Minimum operating conditions test
6.3.1 Test conditions
6.3.2 Test procedures
6.3.3 Test requirements
6.4 Enclosure sweat and condensate test
6.4.1 General
6.4.2 Test conditions
6.4.3 Test procedures
6.4.4 Test requirements
7 Test methods
7.1 General
7.2 General test requirements
7.3 Equipment installation
7.4 Cooling and heating capacity tests procedure
7.4.1 Reconditioning period
7.4.2 Data collection period
7.4.3 Net cooling capacity
7.4.3.1 Heat pump with non-integrated load side liquid pump
7.4.3.2 Heat pump with integrated load side liquid pump
7.4.4 Net heating capacity
7.4.4.1
7.4.4.2
7.5 Uncertainties of measurement
7.6 Data to be recorded
7.7 Uncertainties of measurements and permissible deviations for steady-state cooling and heating capacity tests
7.8 Test results
8 Marking provisions
8.1 Nameplate requirements
8.2 Nameplate information
8.3 Designation of standard rating capacities
8.4 Refrigerant Designation
9 Publication of ratings
9.1 Published ratings
9.2 Additional ratings
Annex A
A.1 General
A.1.1
A.1.2
A.1.3
A.1.4
A.2 Refrigerant flow method
A.2.1
A.2.2
A.2.3
A.3 Refrigerant temperature, pressure, and flow measurements
A.4 Calculation of cooling capacity
A.5 Calculation of heating capacities
Annex B
B.1 General
B.2 Application
B.3 Calculations
B.3.1 Cooling capacity
B.3.2 Heating capacity
B.3.3
Annex C
Bibliography
Cited references in this standard
Content history
[Current]
[Available Superseded]
DR AS ISO 13256.2:2022