AS/NZS IEC 62552.3:2018
Household refrigerating appliances - Characteristics and test methods - Part 3: Energy consumption and volume
Specifies the essential characteristics of household and similar refrigerating appliances cooled by internal natural convection or forced air circulation, and establishes test methods for checking these characteristics. This part of AS/NZS IEC 62552 describes the methods for the determination of energy consumption characteristics and defines how these can be assembled to estimate energy consumption under different usage and climate conditions. This part of AS/NZS IEC 62552 also defines the determination of volume. Identical with, and has been reproduced from, IEC 62552-3:2015.
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AS/NZS IEC 62552.3:2018 Characteristics and test methods Energy consumption and volume
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Applicable test steps for determination of energy and volume
4.1 Setup for energy testing
4.2 Steady state power consumption
4.3 Defrost and recovery energy and temperature change
4.4 Defrost frequency
4.5 Number of test points and interpolation
4.6 Load processing efficiency
4.7 Specified auxiliaries
4.8 Volume determination
5 Target temperatures for energy determination
5.1 General
5.2 Temperature control settings for energy consumption test
6 Determination of energy consumption
6.1 General
6.2 Objective
6.3 Number of test runs
6.4 Steady state power consumption
6.5 Defrost and recovery energy and temperature change
6.6 Defrost interval
6.7 Specified auxiliaries
6.8 Calculation of energy consumption
6.8.1 General
6.8.2 Daily energy consumption
6.8.3 Interpolation
6.8.4 Specified auxiliaries
6.8.5 Total energy consumption
7 Circumvention devices
8 Uncertainty of measurement
9 Test report
Annexes
Annex A (normative) Set up for energy testing
A.1 General
A.2 Additional set up requirements for energy testing
A.2.1 Ice making trays
A.2.2 User adjustable controls
A.2.3 Ambient temperature
A.2.4 Accessories and shelves
A.2.5 Anti-condensation heaters
A.2.6 Automatic icemakers – ice storage bins
Annex B (normative) Determination of steady state power and temperature
B.1 General
B.2 Setup for testing and data collection
B.3 Case SS1: no defrost control cycle or where stability is established for a period between defrosts
B.3.1 Case SS1 approach
B.3.2 Case SS1 acceptance criteria
B.3.3 Case SS1 calculation of values
B.4 Case SS2: steady state determined between defrosts
B.4.1 Case SS2 approach
B.4.2 Case SS2 acceptance criteria
B.4.3 Case SS2 calculation of values
B.5 Correction of steady state power
Annex C (normative) Defrost and recovery energy and temperature change
C.1 General
C.2 Setup for testing and data collection
C.3 Case DF1: where steady state operation can normally be established before and after defrosts
C.3.1 Case DF1 approach
C.3.2 Case DF1 acceptance criteria
C.3.3 Case DF1 calculation of values
C.4 Number of valid defrost and recovery periods
C.5 Calculation of representative defrost energy and temperature
Annex D (normative) Defrost interval
D.1 General
D.2 Elapsed time defrost controllers
D.3 Compressor run time defrost controllers
D.4 Variable defrost controllers
D.4.1 General
D.4.2 Variable defrost controllers – declared defrost intervals
D.4.3 Variable defrost controllers – no declared defrost intervals (demand defrost)
D.4.4 Variable defrost controllers – non compliant
Annex E (normative) Interpolation of results
E.1 General
E.2 Temperature adjustment prior to interpolation
E.3 Case 1: linear interpolation – two test points
E.3.1 General
E.3.2 Requirements
E.3.3 Calculations
E.4 Case 2: triangulation – three (or more) test points
E.4.1 General
E.4.2 Requirements for two (or more) compartment triangulation
E.4.3 Calculations for two compartment triangulation – manual interpolation
E.4.4 Calculations for two compartment triangulation – matrices
E.4.5 Checking temperature validity where there are more than two compartments for triangulation
E.4.6 Calculations for three compartment triangulation – matrices
Annex F (normative) Energy consumption of specified auxiliaries
F.1 Purpose
F.2 Ambient controlled anti-condensation heaters
F.2.1 Outline of the method
F.2.2 Measurement procedure
F.2.3 Data requirements
F.2.4 Regional weather data
F.2.5 Calculation of power consumption
F.2.6 Where anti-condensation heater(s) cannot be disabled but their power consumption can be measured directly
F.2.7 Where anti-condensation heater(s) cannot be disabled and their power consumption cannot be measured directly
F.2.8 Where anti-condensation heater(s) has a user-adjustable setting
F.3 Automatic icemakers – energy to make ice
F.3.1 General
F.3.2 Tank type automatic icemakers
Annex G (normative) Determination of load processing efficiency
G.1 Purpose
G.2 General description
G.3 Setup, equipment and preparation
G.3.1 General
G.3.2 Equipment
G.3.3 Quantity of water to be processed
G.3.4 Position of the water load in compartments
G.3.5 Temperature of the water to be processed
G.4 Load processing efficiency test method
G.4.1 Commencement of the load processing efficiency test
G.4.2 Placement of the load
G.4.3 Measurements to be taken
G.4.4 Conclusion of load processing efficiency test
G.5 Determination of load processing efficiency
G.5.1 General
G.5.2 Quantification of input energy
G.5.3 Quantification of additional energy used to process the load
G.5.4 Load processing efficiency
G.5.5 Load processing multiplier
G.5.6 Addition of user related loads into daily energy
Annex H (normative) Determination of volume
H.1 Scope
H.2 Total volume
H.2.1 Volume measurements
H.2.2 Determination of volume
H.2.3 Volume of evaporator space
H.2.4 Two-star sections and/or compartments
H.3 Key for Figures H.1 through H.5
H.4 Calculation of the volume of the section or sub-compartment in the compartment whose target temperatures are different from each other
Annex I (informative) Worked examples of energy consumption calculations
I.1 Example calculation of daily energy consumption
I.2 Variable defrost – calculation of defrost intervals
I.3 Examples of Interpolation
I.3.1 General
I.3.2 Linear interpolation
I.3.3 Two compartments – manual triangulation
I.3.4 Two compartments – triangulation using matrices
I.3.5 Three compartments – triangulation using matrices
I.4 Calculating the energy impact of internal temperature changes
I.4.1 General
I.4.2 One compartment
I.4.3 Triangulation
I.5 Automatically controlled anti-condensation heater(s)
I.6 Calculation of load processing efficiency
I.7 Determination of annual energy consumption
I.8 Examples of determination of power and temperature from raw data
I.8.1 Manual review of data
I.8.2 Review of data and selection of minimum spread using bespoke software
Annex J (informative) Development of the IEC global test method for refrigerating appliances
J.1 Purpose
J.2 Overview
J.3 Test method objective
J.4 Description of key components of energy consumption
Annex K (normative) Analysis of a refrigerating appliance without steady state between defrosts
K.1 Purpose
K.2 Products with regular characteristics but without steady state operation
K.2.1 General
K.2.2 Special case DF2 approach
K.2.3 Case DF2 acceptance criteria
K.2.4 Case DF2 calculation of values
Annex L (informative) Derivation of ambient temperature correction formula
L.1 Purpose
L.2 Background
L.3 Approach
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AS/NZS IEC 62552.3:2018 Characteristics and test methods Energy consumption and volume
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Applicable test steps for determination of energy and volume
4.1 Setup for energy testing
4.2 Steady state power consumption
4.3 Defrost and recovery energy and temperature change
4.4 Defrost frequency
4.5 Number of test points and interpolation
4.6 Load processing efficiency
4.7 Specified auxiliaries
4.8 Volume determination
5 Target temperatures for energy determination
5.1 General
5.2 Temperature control settings for energy consumption test
6 Determination of energy consumption
6.1 General
6.2 Objective
6.3 Number of test runs
6.4 Steady state power consumption
6.5 Defrost and recovery energy and temperature change
6.6 Defrost interval
6.7 Specified auxiliaries
6.8 Calculation of energy consumption
6.8.1 General
6.8.2 Daily energy consumption
6.8.3 Interpolation
6.8.4 Specified auxiliaries
6.8.5 Total energy consumption
7 Circumvention devices
8 Uncertainty of measurement
9 Test report
Annexes
Annex A (normative) Set up for energy testing
A.1 General
A.2 Additional set up requirements for energy testing
A.2.1 Ice making trays
A.2.2 User adjustable controls
A.2.3 Ambient temperature
A.2.4 Accessories and shelves
A.2.5 Anti-condensation heaters
A.2.6 Automatic icemakers – ice storage bins
Annex B (normative) Determination of steady state power and temperature
B.1 General
B.2 Setup for testing and data collection
B.3 Case SS1: no defrost control cycle or where stability is established for a period between defrosts
B.3.1 Case SS1 approach
B.3.2 Case SS1 acceptance criteria
B.3.3 Case SS1 calculation of values
B.4 Case SS2: steady state determined between defrosts
B.4.1 Case SS2 approach
B.4.2 Case SS2 acceptance criteria
B.4.3 Case SS2 calculation of values
B.5 Correction of steady state power
Annex C (normative) Defrost and recovery energy and temperature change
C.1 General
C.2 Setup for testing and data collection
C.3 Case DF1: where steady state operation can normally be established before and after defrosts
C.3.1 Case DF1 approach
C.3.2 Case DF1 acceptance criteria
C.3.3 Case DF1 calculation of values
C.4 Number of valid defrost and recovery periods
C.5 Calculation of representative defrost energy and temperature
Annex D (normative) Defrost interval
D.1 General
D.2 Elapsed time defrost controllers
D.3 Compressor run time defrost controllers
D.4 Variable defrost controllers
D.4.1 General
D.4.2 Variable defrost controllers – declared defrost intervals
D.4.3 Variable defrost controllers – no declared defrost intervals (demand defrost)
D.4.4 Variable defrost controllers – non compliant
Annex E (normative) Interpolation of results
E.1 General
E.2 Temperature adjustment prior to interpolation
E.3 Case 1: linear interpolation – two test points
E.3.1 General
E.3.2 Requirements
E.3.3 Calculations
E.4 Case 2: triangulation – three (or more) test points
E.4.1 General
E.4.2 Requirements for two (or more) compartment triangulation
E.4.3 Calculations for two compartment triangulation – manual interpolation
E.4.4 Calculations for two compartment triangulation – matrices
E.4.5 Checking temperature validity where there are more than two compartments for triangulation
E.4.6 Calculations for three compartment triangulation – matrices
Annex F (normative) Energy consumption of specified auxiliaries
F.1 Purpose
F.2 Ambient controlled anti-condensation heaters
F.2.1 Outline of the method
F.2.2 Measurement procedure
F.2.3 Data requirements
F.2.4 Regional weather data
F.2.5 Calculation of power consumption
F.2.6 Where anti-condensation heater(s) cannot be disabled but their power consumption can be measured directly
F.2.7 Where anti-condensation heater(s) cannot be disabled and their power consumption cannot be measured directly
F.2.8 Where anti-condensation heater(s) has a user-adjustable setting
F.3 Automatic icemakers – energy to make ice
F.3.1 General
F.3.2 Tank type automatic icemakers
Annex G (normative) Determination of load processing efficiency
G.1 Purpose
G.2 General description
G.3 Setup, equipment and preparation
G.3.1 General
G.3.2 Equipment
G.3.3 Quantity of water to be processed
G.3.4 Position of the water load in compartments
G.3.5 Temperature of the water to be processed
G.4 Load processing efficiency test method
G.4.1 Commencement of the load processing efficiency test
G.4.2 Placement of the load
G.4.3 Measurements to be taken
G.4.4 Conclusion of load processing efficiency test
G.5 Determination of load processing efficiency
G.5.1 General
G.5.2 Quantification of input energy
G.5.3 Quantification of additional energy used to process the load
G.5.4 Load processing efficiency
G.5.5 Load processing multiplier
G.5.6 Addition of user related loads into daily energy
Annex H (normative) Determination of volume
H.1 Scope
H.2 Total volume
H.2.1 Volume measurements
H.2.2 Determination of volume
H.2.3 Volume of evaporator space
H.2.4 Two-star sections and/or compartments
H.3 Key for Figures H.1 through H.5
H.4 Calculation of the volume of the section or sub-compartment in the compartment whose target temperatures are different from each other
Annex I (informative) Worked examples of energy consumption calculations
I.1 Example calculation of daily energy consumption
I.2 Variable defrost – calculation of defrost intervals
I.3 Examples of Interpolation
I.3.1 General
I.3.2 Linear interpolation
I.3.3 Two compartments – manual triangulation
I.3.4 Two compartments – triangulation using matrices
I.3.5 Three compartments – triangulation using matrices
I.4 Calculating the energy impact of internal temperature changes
I.4.1 General
I.4.2 One compartment
I.4.3 Triangulation
I.5 Automatically controlled anti-condensation heater(s)
I.6 Calculation of load processing efficiency
I.7 Determination of annual energy consumption
I.8 Examples of determination of power and temperature from raw data
I.8.1 Manual review of data
I.8.2 Review of data and selection of minimum spread using bespoke software
Annex J (informative) Development of the IEC global test method for refrigerating appliances
J.1 Purpose
J.2 Overview
J.3 Test method objective
J.4 Description of key components of energy consumption
Annex K (normative) Analysis of a refrigerating appliance without steady state between defrosts
K.1 Purpose
K.2 Products with regular characteristics but without steady state operation
K.2.1 General
K.2.2 Special case DF2 approach
K.2.3 Case DF2 acceptance criteria
K.2.4 Case DF2 calculation of values
Annex L (informative) Derivation of ambient temperature correction formula
L.1 Purpose
L.2 Background
L.3 Approach
Previous versions
AS/NZS IEC 62552.3:2018
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.