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AS/NZS ISO 13256.1:2023

[Current]

Water-source heat pumps - Testing and rating for performance, Part 1: Water-to-air and brine-to-air heat pumps

AS/NZS ISO 13256.1:2023 identically adopts ISO 13256 1:2021, which establishes performance testing and rating criteria for factory-made residential, commercial and industrial, electrically-driven, mechanical- compression type, water-to-air and brine-to-air heat pumps
Published: 17/02/2023
Pages: 45
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 Power input of fans for heat pumps without duct connection
5.1.3 Power input of fans for heat pumps with duct connection
5.1.3.1
5.1.3.2
5.1.4 Power input of liquid pumps
5.1.4.1
5.1.4.2
5.1.5 Airflow rates
5.1.5.1
5.1.5.2
5.1.5.3
5.1.5.4
5.1.5.5
5.1.5.6
5.1.6 Liquid flow rates
5.1.6.1 General
5.1.6.2 Source side flowrate
5.1.6.3
5.1.6.4
5.1.7 Test liquids
5.1.7.1
5.1.7.2
5.1.7.3
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
6.1.1
6.1.2
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 General
7.4.2 Reconditioning period
7.4.3 Data collection period
7.4.4 Net total cooling capacity
7.4.4.1
7.4.4.2
7.4.5 Net heating capacity
7.4.5.1
7.4.5.2
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 ratings capacity
8.4 Refrigerant designation
9 Publication of ratings
9.1 Published ratings
9.2 Additional ratings
Annex A
A.1 General test room requirements
A.2 Equipment installation
A.2.1
A.2.2
A.2.3
A.2.4
A.2.5
A.3 Static pressure measurements across indoor coil — Equipment with a fan and a single outlet
A.3.1
A.3.2
A.4 Equipment with fans and multiple outlets or multiple indoor units
A.4.1
A.4.2
A.5 Equipment without a fan and with a single outlet
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.2 Application
C.2.1
C.2.2
C.2.3
C.3 Calculation of cooling capacity
C.4 Calculation of heating capacity
Annex D
D.1 General
D.1.1
D.1.2
D.1.3
D.1.4
D.2 Refrigerant flow method
D.2.1
D.2.2
D.2.3
D.3 Refrigerant temperature, pressure, and flow measurements
D.4 Calculation of cooling capacity
D.5 Calculation of heating capacities
Annex E
E.1 General
E.2 Application
E.3 Calculations
E.3.1 Cooling capacity
E.3.2 Heating capacity
E.3.3
Annex F
F.1 Fan Correction
F.2 Pump Correction
Annex G
Annex H
H.1 General
H.2 Calculations
H.2.1
H.2.2
Bibliography
Cited references in this standard
Content history
[Available Superseded]
AS/NZS 3823.1.3:2005 Rec:2016
DR AS/NZS ISO 13256.1:2022