KENYA STANDARD       DKS 2464 -2:2019  
ICS  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Performance of household electrical 
Appliances — Refrigerating appliances  
                    
Part 2:  
Minimum energy performance standard  
requirements  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 © KEBS 201 9 First Edition , 2019 
 
 
  DKS 2464 -2:2019  
 
ii  © KEBS 2019 — All rights reserved  TECHNICAL COMMITTEE REPRES ENTATION  
 
The following organizations were represented on the Technical Committee:  
 
Energy Regulatory Commission  
Kenya Association of Manufacturers  
Ministry of Energy  
New Edge Technologies Ltd. 
Consumer Information Network  
Intertek International Ltd.  
Energy Advisory Ltd  
Rift Valley Railways/Kenya Railways Corporation  
Ozone Engineering/Frigoglass East Africa  
Kenyatta University  
Kenya Industrial Research and Development Institute  
Raerex (EA)  Ltd. 
HEVAC Kenya  
Hot point Appliances Ltd  
National Ozone Unit (Ministry of Environment and Forestry)  
Apex Management Consultant Ltd.  
National Environment Management Authority  
Kenya Bureau of Standards — Secretariat  
 
 
 
REVISION OF KENYA STANDARDS  
 
In order to keep abreast of progress in industry, Kenya Standards shall be regularly reviewed.  Suggestions 
for improvements to published standards, addressed to the Managing Director, Kenya Bureau of Standards, 
are welcome.  
 
 
 
 
 
© Kenya Bureau of Standards, 2019 
 
Copyright. Users are reminded that by virtue of Section 25 of the Copyright Act, Cap. 130 of 2001  of the Laws of Kenya, copyright subsists 
in all Kenya Standards and except as provided under Section 25 of this Act, no Kenya Standard produced by Kenya  Bureau of Standards 
may be reproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing f rom the 
Managing Director.  
  KENYA STANDARD                                          DKS 2464 -2:2019  
ICS  
© KEBS 2019 — All rights  reserved    iii  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Performance of household electrical 
Appliances — Refrigerating  appliances  
                    
Part 2:  
Minimum energy performance standard  requirements  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
KENYA BUREAU OF STANDARDS (KEBS)  
 
Head Office: P.O. Box 549 74, Nairobi -00200, Tel.: (+254 020) 605490, 602350, Fax: (+254 020) 604031  
E-Mail: info@kebs.org, Web:http://www.kebs.org  
 
Coast Region     Lake Region      Rift Valley Region  
P.O. Box 99376, Mombasa -80100   P.O. Box 2949, Kisumu -40100        P.O. Box 2138, Nakuru -20100  
Tel.: (+254  041) 229563, 230939/40  Tel.: (+254 057) 23549, 22396        Tel.: (+254 051) 210553, 210555  
Fax: (+254  041) 229448    Fax: (+254 057) 21814  
 
  DKS 2464 -2:2019  
 
iv  © KEBS 2019 — All rights reserved  Foreword  
 
This Kenya Standard was prepared by the Refrigeration and Air Conditioning Technical Committee under the 
guidance of the Standards Projects Committee, and it  is in accordance with the procedures of the Kenya 
Bureau of Standards.  
 
During the preparation of this standard, reference was made to the following documents:  
 
IEC 62552 -2:2015  Kenya Standard — Household refrigerating appliances — Characteristics and test 
methods Part 2: Performance requirements, First Edition . 
 
IEC 62552 -3:2015  Kenya Standard — Household refrigerating appliances — Characteristics and test 
methods Part 3: Energy  consumption and volume, First Edition . 
 
IEC/TR 63061:2017  Kenya Standard — Adjusted volume calculation for refrigerating appliances, First 
Edition . 
 
ISO 817:2014  Kenya Standard — Refrigerants — Designation and safety classification,  Second 
Edition . 
 
Ackno wledgement is hereby made for the assistance derived from these sources . 
 
  
KENYA STANDARD          DKS 2464 -2:2019  
 
 
© KEBS 2019 — All rights reserved    1  
Performance of household electrical Appliances — Refrigerating 
appliances  
                    
Part 2:  
Minimum energy performance standard requirements  
 
 
1 Scope, general and field of application  
 
1.1 Scope  
 
This Kenya Standard specifies the Minimum Energy Performance Standard (MEPS) requirements for 
household vapour compression refrigerating appliances,  cooled by internal natural convection or forced air 
circulation that can be connected to mains power.  
 
Such refrigerating appliances that are used in the commercial sector are included within the scope. This 
Standard does not specify safety requirements.  Separate standalone wine storage cabinets are not specifically 
within the scope of this standard.  
 
In particular, this Standard specifies the following:  
 
a) Projected annual energy consumption (PAEC).  
b) Projected MEPS energy consumption (PMEC).  
c) Volume.  
d) Adjusted volume.  
e) Normalized volume.  
f) Comparative energy consumption (CEC).  
g) Star rating.  
h) Performance criteria.  
i) MEPS for refrigerating appliances.  
j) Registration test report information.  
k) Printing requirements for refrigerating appliance energy star rating label s. 
 
All of the above parameters defined in this Standard need to be determined using test measurements 
conducted in accordance with KS IEC 62552 -3. 
 
1.2  Exclusions  
 
The following products are excluded from the scope of this standard:  
 
a) products that are designed exclusively for use in caravans, vehicles (e.g. mobile homes, campervans 
and/or rail cars) or boats and which have a total gross volume of less than 60 l.   
 
b) portable products that have a gross volume of less than 30 l;  
 
c) products that have a gross volume of less than 30 l where the refrigeration function is secondary (e.g. 
boiling or cooled water dispensers);  
 
d) products that have no options for connection to a 240 V or 415 V 50 Hz mains electricity supply;  
 
e) products that cool using technologies other than the vapor compression cycle.  
  
2  © KEBS 2019 — All rights reserved  1.3  Objective  
 
The objective of this standard is to define performance, energy labelling and MEPS requirements which are to 
be met such that a refrigerating appliance can carry a valid ene rgy star rating label.  
 
2 Normative references  
 
The following documents are referred to in the text in such a way that some or all of their content constitutes 
requirements of this document. For dated references, only the edition cited applies. For undated references, 
the latest edition of the referenced document (including any amendments) applies.  
 
KS EAS 124,  Rounding off numerical values. Statistical Methods and Basic Measurement  
 
KS IEC 62552 -1, Household Refrigerating Appliances – Characteristic s and Test Methods – Part 1: General 
requirements  
 
KS IEC 62552 -2, Household refrigerating appliances — Characteristics and test methods Pa rt 2: Performance 
requirements  
 
KS IEC 62552 -3, Household refrigerating appliances — Characteristics and test methods Part 3: Energy 
consumption and volume  
 
KS IEC/TR 63061,  Adjusted volume calculatio n for refrigerating appliances  
 
KS ISO 817 , Refrigerants — Design ation and safety classification  
 
3 Term s and definitions  
 
For the purposes of this document , the definitions given in KS IEC 62552 -1, and the following apply:  
 
3.1  
adjusted volume (V)  
 
3.1.1  
adjusted volume (V adj)  
the rated gross volume of a compartment adjusted to compensate for heat loadings on spaces which are at 
temperatures other than that of fresh food type space. It is determined as specified in 7.5 (Units: litres)  
 
3.1.2 
total adjusted volume (V adj tot)  
the total of the V adj of all compartments of the appliance (units: litres)  
 
3.2  
base energy consumption (BEC)  
the nominal energy consumption of an appliance model of a given group and total adjusted volume with a SRI 
of 1.00 (refer also to 7.6) (Units: kWh /y)  
 
3.3  
check test  
a full or part test in accordance with the relevant Standard to verify the performance or energy consumption, 
or both, of an individual brand and model bearing an energy label  
 
3.4 
comparative Energy Consumption (CEC)  
the nominal average energy consumption of a model of refrigerating appliance. It is based on the PAEC of the 
model (refer also to Clause 7.4). The CEC appears on the energy a v label. (Units: kWh/y.)  
 
3.5 
compartment and sub -compartment  
These are defined as  follows:  DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    3  
a) compartment , an enclosed space within a refrigerating appliance, which is directly accessible through 
one or more external doors. A compartment may contain one or more sub -compartments and one or 
more convenience features;  
 
b) sub-compartment , a permanently enclosed space within a compartment or sub -compartment which 
is designated as being a different type of food storage space, (i.e. has a different operating temperature 
range) from the compartment or sub -compartment within whi ch it is located.  
Throughout this standard, except when referring to door allowances (Ad or A d t ot) or sealing face 
dimensions (see also Annex A), the term ‘compartment’ means ‘compartment and sub -compartment’, 
or ‘compartment or sub -compartment’, or ‘c ompartment nor sub -compartment’ as appropriate for the 
context.  
3.6 
family of models  
a range of models of the one brand, to which a single set of test reports is applicable and where each of the 
models has the same relevant physical characteristics, comp arative energy consumption, energy efficiency 
rating and performance characteristics and which are grouped for the purpose of registration. The term ‘model’ 
is synonymous with ‘family of models’  
 
3.7 
good  
a good is a product to which this Standard applies  
3.8 
grandfathering  
refer to Annex F for a definition of ‘grandfathering’  
 
3.9 
minimum energy performance standard (MEPS)  
the mandatory level of energy efficiency which has to be met by each individual unit of an appliance model. 
The MEPS cut -off level is the maximum allowable energy consumption of the model determined from its size, 
features and configuration (refer to Clause 8 .5). (Units: kWh/y.)   
 
3.10 
projected annual energy consumption (PAEC)  
the estimate of energy used by a single unit during one year’s use. It assumes a particular ambient temperature 
and normally no door openings (refer also to C.2.3) (units: kWh/y)  
 
3.11 
portable products  
units that are specifically designed to be moved from place to place as part of their normal use as stated in the 
accompanying product literature (i.e. operating manual or user instructions)  
 
NOTE  Energy labelling and MEPS is only exem pt for portable products where they have a gro ss volume of less than 30 l .  
 
3.12   
registration  
the completion and submission of the prescribed application form to the regulator as specified in the 
registration system. An approved registration means a record that has been reviewed and accepted by the 
relevant regulator and marked with an approved status  on the basis that the record is complete, all relevant 
documents have been provided, all relevant requirements of the standard continue to be met and the relevant 
fee (where applicable) has been paid  
 
A valid registration is one where the status remains a pproved on the relevant date. A registration status of 
‘expired’ or ‘grandfathered’ is valid only for existing stock that was manufactured or imported prior to the expiry 
or grandfathering date and where it had a status of ‘approved’ at the time of manufac ture or importation.  
 
A registration status of ‘cancelled’ is not valid for any stock, irrespective of the date of manufacture or 
importation.  
 
3.13  
4  © KEBS 2019 — All rights reserved  star rating  
the number of stars displayed on the energy label. Available stars are between a minimum of o ne and a 
maximum of five. The star rating is calculated from the Star Rating Index (refer also to 2.8.) (dimensionless)  
 
3.14 
star rating index (SRI)  
an indication of the claimed energy efficiency of a model. A higher SRI indicates higher energy efficiency. It is 
derived from the CEC. (Refer also to 7.7.) (Dimensionless)  
 
3.15 
statements of intention  
 
3.15.1  
shall indicate s that a statement is mandatory   
 
3.15.2  
should indicates a recommendation   
 
3.16  
variant  
a model variant is an alternative version of a model which has the same sales specification and the same 
model number or other form of designation as another version of the model, and offers the same performance 
except that it has a different PAEC av, and may have a different SRI (refer also to 7.4.2)  
 
3.17 
measured quantities  
quantities used in conjunction with this Standard shall be measured in accordance with KS IEC 62552 -3.  
 
3.18 
rounding  
unless otherwise stated, numbers shall be rounded and recorded to five significant figure s in accordance with 
KS EAS 124  
 
4  Determination of energy consumption  
 
4.1 General  
 
This clause sets out the required methods and settings to be applied when determining the energy 
consumption of a refrigerating appliance within the scope of this Standard.  
 
The relevant components of energy consumption of a refrigerating appliance shall be determined in 
accordance with the test methods as described in the test standard  and in particular the KS IEC 62552 -3, 
Sections, 4, 5 and 6. Equation numbers from the test standard  are indicated in parentheses throughout this 
Standard. Where required, a test report submitted as part of a registration shall  contain the applicable 
information specified in Annex  E. 
 
All refrigerating appliances shall be allocated a Group  in accordance with Table 1 . Refer to Clause 4.10  where 
a refrigerating appliance can b e configured to be more than one Group . 
 
Different approaches for the determination of energy consumption and required settings are to be applied for: 
calculations in relation to the energy rating label  (see Clause 4.2 ); and calculations in relation to MEP S 
requirements (see Clause 4.3 ). 
 
Unless otherwise stated, calculated numbers shall be rounded and recorded to not less than five significant 
figures in accordance with KS EAS 124.  
 
Where a single point is used to determine the daily energy consumption for energy labelling or MEPS , the 
calculated temperature in all compartments shall  be at or below the relevant target temperature defined in the 
KS IEC 62552 -3, Table1. Otherwise, a mor e accurate value for daily energy consumption may be estimated 
using two or three -point interpolation as follows:  DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    5  
Where two -point interpolation is used to determine daily energy consumption, this shall be performed in 
accordance with the KS IEC 62552 -3, Annex E. The energy -temperature slope Si of the compartment  used for 
interpolation in accordance with the KS IEC 62552 -3, Equation (32) shall be reported as well as the temperature 
in all compartments  at the point of interpolation.  
 
Where three -point interp olation is used, this shall be performed in accordance with the KS IEC 62552 -3, 
Annex  E. The coefficients E 0, A and B shall be reported as well as the temperature in all compartments  at the 
point of interpolation.  
 
Where the appliance has an ambient contro lled anti -condensation heater, the average heater power Wheaters -
AU shall be determined using the methodology set out in the KS IEC 62552 -3.,  
 
When determining energy consumption, any refrigerating appliance that has smart features shall  be configured 
in accordance with the specifications of the manufacturer for use in the home. Such features shall be 
configured as ready for use, but should  not be actively used by the test laboratory during tests.  
 
Any declared automatic control  that redu ces energy consumption under energy test conditions (including 
management of heaters) but which is not generally saving energy during normal use shall be defeated where 
possible. Where the refrigerating appliance has a declared automatic control  that could  not be disabled for 
the energy consumption test, or where a circumvention device  is discovered, the energy impact of this feature 
shall be quantified and this value used to adjust each measured energy consumption in accordance with 
Equation 2.1 . The value of Edaily-adjusted  is then used (as applicable for each ambient temperature) to calculate 
the PAEC . 
 
𝐸𝑑𝑎𝑖𝑙𝑦 −𝑎𝑑𝑗𝑢𝑠𝑡𝑒𝑑 =𝐸𝑑𝑎𝑖𝑙𝑦 +2×𝑃𝑟×0.024 (𝑘𝑊ℎ𝑑𝑎𝑦⁄ )−−−−−−−−−−−−− 
 
−−2.1 
where: P r = the average power reduction resulting from t he activation  of the feature in watts  
 
 
Table 1 — Refrigerating appliance designations and groups  
 
Refrigerating 
appliance 
designation  
 
(see Note 1) Compartment type  
 Configuratio
n 
requirement
s 
(see Note 5) 
 Defrost 
System 
Requirem
ents 
(See  
Note 6)  
 
 Group  
See 
Note 
14 
 Unfrozen compartment  
  
Frozen compartment  
Wine 
stora
ge Cell
ar or 
pant
ry Fres
h 
food  Chill  Zero -
star One-
star Two- 
star Freezer 
(three 
or four - 
star)     
Refrigerator  O O Y O O N N   1 
     
Cooled 
appliance  L L L L L N N N     
Refrigerator  O O Y O O Y N N 2 
     
Cooled 
appliance  L L L L L Y N N     
Refrigerator  O O Y O O O Y N 3 
     
Cooled 
appliance  L L L L L O Y N     
Refrigerator/  
freezer  O O Y O O O O Y   
   Automatic 
defrost in 
unfrozen 
compartm
ents  
See Note 6  
  4 
  Cooled 
appliance  L L L L L O O Y 
Refrigerator/  
freezer  O O Y O O O O Y Bottom 
freezer  Automatic 
defrost in 
all 5B  
6  © KEBS 2019 — All rights reserved   
NOTE  1 See Clause  1.6.19 for definitions of refrigerating appliance designations.  
 
NOTE  2 To determine the Group to which an appliance belongs, its refrigerating appliance designation (Clause  1.6.19), constituent 
compartment types (KS IEC 62552 -1), configuration (Clause  1.6.10), defrost system (KS IEC 62552 -1) and defrost type for each 
compartment (KS IEC 62552 -1) need to first be established. Each row of Table 1 i s then considered from the top until the applicable row, 
and hence the Group, is established. The target temperature for energy determination for each compartment type is defined in the KS 
IEC 62552 -3. 
 
NOTE  3 In determining the Group of an appliance, Tabl e 1 is applied to compartments and sub -compartments. Convenience features 
are not considered.  
 
NOTE  4 Requirements to be met by the appliance in question regarding food storage compartment types: “Y” — indicates “yes” (i.e. the 
appliance shall have at leas t one compartment of each of the types marked Y). “N” — indicates “no” (i.e. the appliance shall have no 
compartments of the types marked N). “L” — indicates “at least one” (i.e. the appliance shall have at least one compartment from the 
types marked L wit hin each of the food storages types [unfrozen or frozen, as applicable]). “O” — indicates “optional” (i.e. the appliance 
may or may not have any compartments from the types marked O).  
 
NOTE  5 This column sets out the requirements to be met by the appliance  regarding configuration. A blank cell in this column indicates 
no particular requirements regarding configuration and therefore includes any configuration. A frost -free cooled appliance with a freezer 
and unfrozen compartment shall be classified as Group 5T irrespective of configuration.  
 
NOTE  6 This column sets out the system requirements to be met by the appliance regarding the prevention or removal of frost. A blank  
cell in this column indicates no particular system requirements. The entry “manual defro st” indicates that the appliance shall have at least 
one frozen compartment that is not automatic defrost.  
 
NOTE  7 Any refrigerating appliance which is configured as a Group 4 appliance but does not meet the defrost type criteria shall be 
deemed to be a Gr oup 3 appliance. This particular requirement applies even though the appliance contains a freezer compartment.  
 
NOTE  8 An appliance with frozen compartments with both chest and upright configurations shall be classified as Group 6C where the 
volume of the chest component exceeds 50 % of the total volume. Otherwise it shall be classified in the appropriate upright Group.  
 
NOTE  9 If a product can be classified as either Group 1 or Group 2, it shall be assigned Group 1.  
 
NOTE  10 The following compartment types  are defined as unfrozen: pantry, cellar, wine storage, fresh food, chill, zero -star. 
 
NOTE  11 The following compartment types are defined as frozen: ice -making (one -star), short -term frozen food storage (two -star), 
freezer (three -star and four -star).  
 
NOT E 12 The terms zero -star, one -star, two -star, three -star and four -star are definitions of compartment temperature performance as 
set out in the KS IEC 62552 -1 and are not related to star ratings defined in this Standard.  
 
NOTE  13 See Annex  A for examples o f hypothetical appliances and the applicable Group for each.  
 
NOTE  14 Where  a refrigerating appliance contains variable temperature compartments that may alter the Group, the refrigerating 
appliance designation is determined for the primary Group as required for energy labelling and MEPS. Where additional Groups are 
declared for energy labelling, the relevant refrigerating appliance designation is separately determined for each additional Group. See 
Clause  4.10.  
 
4.2  Energy consumption determination for energy labelling  
 
4.2.1   General  
 
Energy consumption for the energy rating label shall  be determined using the following measurements:  Refrigerator/free
zer O O Y O O O O Y Side by side  Automatic 
defrost in 
all 5S 
Refrigerator/  
freezer  O O Y O O O O Y Not Group 5S 
or 5B  
 Automatic 
defrost in 
all 
  5T 
  Cooled 
appliance  L L L L L O O Y 
Freezer  N N N N N O O Y Chest  
 6C 
   6C 
  Cooled 
appliance  N 
 N N N N L L L 
Freezer  N N N N N O O Y Upright  
 Manual 
defrost  
  6U 
  Cooled 
appliance  N N N N N L L L 
Freezer  N N N N N O O Y Upright  
 Automatic 
defrost in 
all 
  7 
  Cooled 
appliance  N N N N N L L L DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    7  
a) The steady -state power consumption as determined in accordance with Annex  B of the KS IEC 62552 -
3. 
 
b) The incremental energy for defrost and recovery as determined in accordance with Annex  C of the KS 
IEC 625 52-3. 
 
c) The defrost frequency as determined in accordance with Annex  D of the KS IEC 62552 -3. 
 
d) The energy consumption of specified auxiliaries as determined in accordance with Annex  F of the KS 
IEC 62552 -3, where applicable.  
 
e) The load processing efficiency as determined in accordance with Annex  G of the KS IEC 62552 -3. 
 
4.2.2   Test requirements for energy labelling  
 
Table 2  sets out requirements to be applied when undertaking tests for energy labelling.  
 
Table 2 — Energy consumption testing — requirements for energy labelling  
 
 
 
Table 2 (continued)  
 
Test Standard  Section or 
Clause  Aspect  Requirement  Test 
Standard  Section 
or Clause  Aspect  Requirement  
Part 1  Section 4  Climate class  Climate class is not specified in this 
Standard and a declared climate class in 
the KS IEC 62552 -1 does not affect 
conditions for  energy testing  
Part 1  Clause 
A.3.3  Electrical supply  230V and 50Hz  
Part 3  Section 5  Target temperatures  As per Table 1  
Part 3  Section 6  Ambient temperatures to be used 
for the determination of energy 
consumption  Both 16  °C and 32  °C 
Part 3  Section 6  Method for calculating and 
optimizing the estimate of the daily 
energy consumption for a given 
ambient temperature  Interpolation in accordance with Annex E 
— optional  
Part 3  Clause 
A.2.5  Manually switched anti -
condensation heaters  These shall be set in the ON position for 
energy labelling tests or in the maximum 
(highest energy) position where there is a 
variable control  
Part 3  Clause 
A.2.6  Automatic icemakers  Storage bin to remain in place and all 
associated auxiliaries to be operating as 
per Clause A. 2.6 
Part 3  Annex B  Ambient temperatures to be used 
for the determination of steady -state 
power consumption during stable 
operation  Both 16  °C and 32  °C 
Part 3  Annex B  Ambient temperatures to be used 
for the determination of 
compartment internal temperature 
during stable operation  Both 16  °C and 32  °C   
8  © KEBS 2019 — All rights reserved  Part 3  Annex C  Ambient temperatures to be used 
for the determination of the 
representative incremental energy 
for defrost  and recovery  Both 16°C and 32°C  
Part 3  Annex C  Values of ΔEdf representative 
incremental energy for defrost and 
recovery  Measured value times 1.3 for 
run-time defrost controllers to 
give ΔEdf-a  
Measured value times 1.9 for all 
other defrost controller types to 
give ΔEdf-a 
NOTE: These values are 
empirical corrections to account 
for differences between 
laboratory measurements and 
normal use. See Bibliography 
Item [7].  
Part 3  Annex C  Values of ΔThdf representative 
temperature difference for defrost 
and recovery used for determining 
the calculated compartment 
temperature  As measured  
Part 3  Annex D  Defrost interval ( tdf) to be used 
when determining energy 
consumption  Defrost interval as determined in 
the relevant section of Annex D  
Part 3  Annex G  Ambient temperatures to be used 
for the determination of the 
processing efficiency  32°C, measurement at 16°C is 
optional  
Part 3  Annex G  The deemed processing load to be 
used for the determination of the 
load processing efficiency  Processing load as defined in 
Annex G of the test standard Part 
3. The required parameter is the 
load processing efficiency as 
defined in Equation (52) of the 
test standard Part 3.  
Part 3  Annex H  Determination of compartment 
volume  Rated value stated by the 
supplier.  
 
 
4.2.3  Calculation of energy consumption for the energy rating label  
 
Energy consumption in relation to the energy rating label shall  be calculated as follows:  
 
For separate ambient test temperatures at both 32°C and 16°C, determine the following values:  
 
a) The steady -state power Pss for the selected temperature control setting in accordance with the KS 
IEC 62552 -3, Annex  B. Ensure that this steady -state power value  is corrected for the measured 
ambient test room temperature in accordance with the KS IEC 62552 -3, Equation  (15). 
 
b) The representative incremental energy for defrost and recovery ΔEdf in accordance with the KS IEC 
62552 -3, Annex  C. The number of valid defrost and recovery periods to determine a representative 
value shall meet the requirements as set out in the KS IEC 62552 -3, Clause  C.4, Option 1 or Option 
2. Any defrost cycle that has been initiated by the test laboratory (forced defrost) shall be omit ted when 
determining representative incremental energy for defrost and recovery.  
 
NOTE  An appliance tested with a dry evaporator or subject to forced defrost will give an artificially low value for incremental 
energy for defrost and recovery.  
 
c) For each val id value for incremental energy for defrost and recovery ΔEdf in accordance with the KS 
IEC 62552 -3, Annex  C, the defrost heater energy Edf-heater  shall be reported and the defrost adder 
for each defrost as specified in Equation  2.2 shall be calculated and reported.  
 DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    9 ∆𝐸𝑑𝑓−𝑎𝑑𝑑𝑒𝑟 =∆𝐸𝑑𝑟−𝐸𝑑𝑓−ℎ𝑒𝑎𝑡𝑒𝑟                                                                                                    2.2 
 
 
d) Measured values of ΔEdf shall be multiplied by the Kenya scaling factors set  out in Table 2  to give 
ΔEdf-a for use in the determination of daily energy consumption Edaily. 
 
e) The representative temperature difference for defrost and recovery in each compartment  i  
 
ΔTh df-i in accordance with the KS IEC 62552 -3, Annex  C shall be determined where there is automatic 
defrost system.  
 
f) The defrost interval tdf in accordance with the KS IEC 62552 -3, Annex  D shall be calculated where 
there is automatic defrost system. For variable defrost controllers, the value for tdf32 (KS IEC 6255 2-
3, Equation  (27)) used for determination of energy consumption Edaily shall not exceed 24  h at 32°C 
and shall not exceed 48  h at 16°C.  
 
g) The compartment  temperature in each compartment  for the selected temperature control setting in 
accordance with the KS IEC 62552 -3, Equation  (3), which shall include the representative temperature 
difference for defrost and recovery in each compartment  (where applicable).  
 
h) The daily energy consumption at the selected control setting Edaily in accordance with the KS IEC 
62552-3, Equation  (2). The final values, after interpolation where applicable, shall be recorded as 
Edaily32C -label  and Edaily16C -label  as applicable.  
 
The procedure specified in Annex  G of the KS IEC 62552 -3 is used to measure the load processing efficiency . 
This efficiency is then used to calculate the additional energy that the refrigerating appliance would require to 
remove a known amount of user heat load. A nominal user heat load of 0.75 Wh per day per litre of unfrozen 
volume  and 0.25 Wh per day per li tre of frozen volume  is assigned for all Groups  when determining the PAEC . 
 
Determine the load processing efficiency Efficiency  load,  ambient  at an ambient test temperature of 32°C in 
accordance with the KS IEC 62552 -3, Annex  G, Equation  (52). The supplier may also elect to determine the 
load processing efficiency Efficiency  load,  ambient  at an ambient test temperature of 16°C in accordance with 
the KS IEC 62552 -3, Annex  G, Equation  (52), in which case the average value for 16°C and 32°C is used for 
the energy labelling calculation. Where a supplier elects not to measure the load processing efficiency, a 
default value for Efficiency  load,  ambient  is specified in Clause  3.3. 
 
Where one or more defrosts occur during a load processing test, the modified KS IEC 62552 -3, Annex  G, 
Equation  (51) set out in Equation  2.3 shall be used to calculate ΔE additional -test: 
 
∆𝐸𝑎𝑑𝑑𝑖𝑡𝑖𝑜𝑛𝑎𝑙 −𝑡𝑒𝑠𝑡 =(𝐸𝑒𝑛𝑑−𝐸𝑠𝑡𝑎𝑟𝑡 )−𝑃𝑎𝑓𝑡𝑒𝑟 ×(𝑡𝑒𝑛𝑑−𝑡𝑠𝑡𝑎𝑟𝑡 )−𝑧×∆𝐸𝑑𝑓−𝑎𝑑𝑑𝑒𝑟 −
∑𝐸𝑑𝑓−ℎ𝑒𝑎𝑡𝑒𝑟                                                                                          2.3 
 
Where Σ Edf-heater  is the sum of defrost heater energy for all defrosts that occur during the load pr ocessing 
test and ΔEdf-adder  is the representative defrost adder calculated for all valid defrosts specified in 
Equation  2.2. 
 
Determine the volume  of each compartment  in accordance with the KS IEC 62552 -3, Annex  H. Allocate the 
volume  of each compartment  as either frozen ( Vfrozen ) or unfrozen ( Vunfrozen ), as classified under Table 1 . 
 
4.3  Energy consumption determination for MEPS  
4.3.1   General  
 
Energy consumption for MEPS shall  be determined using the following measurements:  
  
a) The steady -state power consumption as determined in accordance with Annex  B of the KS IEC 
62552 -3. 
b) The defrost and recovery energy as determined in accordance with Annex  C of the KS IEC 62552 -
3. 
c) The defrost frequency as specified in Table  2.3 for the relev ant defrost controller type.   
10  © KEBS 2019 — All rights reserved  d) The energy consumption of specified auxiliaries as determined in accordance with Annex  F of the 
KS IEC 62552 -3 where applicable.  
 
NOTE  The load processing efficiency is not considered in the energy consumption determination for  MEPS . 
 
4.3.2   Test requirements for determining MEPS compliance  
 
Table  2.3 sets out requirements to be applied when undertaking tests for energy consumption demonstrating  
compliance with the MEPS  requirements.  
 
Table 2.3  — Energy consumption testing — Requirements for MEPS compliance  
 
 
 
 
 
 
 
 
 
 
Table 2.3 (continued)  
 Test Standard  Section 
or Clause  Aspect  Requirement  
Part 1  Section 4  Climate class  Climate class is not specified in this 
Standard and a declared climate 
class in the KS IEC 62552 -1 does 
not affect conditions for energy 
testing  
Part 1  Clause 
A.3.3  Electrical supply  230V and 50Hz  
Part 3  Section 5  Target temperatures  As per Table 1  
Part 3  Section 6  Ambient temperatures to be used 
for the determination of energy 
consumption  28°C only (i.e. a measurement at 
16°C is not required for MEPS ) 
Part 3  Section 6  Method for calculating and 
optimising the estimate of the daily 
energy consumption for a given 
ambient temperature  Interpolation in accordance with 
Annex E — optional  
Part 3  Clause 
A.2.5  Manually switched anti -
condensation heaters  These shall be set in the ON 
position for MEPS tests or in the 
maximum (highest energy) position 
where there is a variable control  
Part 3  Clause 
A.2.6  Automatic icemakers  Storage bin to remain in place and 
all associated auxiliaries to be 
operating as per Clause A.2.6  
Part 3  Annex B  Ambient temperatures to be used 
for the determination of power 
consumption during stable 
operation  32°C only (i.e. a test at 16°C is 
not required for MEPS )  
 
Test Standard  Section or Clause  
 Aspect  Requirement  
Part 3  Annex B  Ambient temperatures to 
be used for the 
determination of 
compartment internal 
temperature during stable 
operation  32°C only (i.e. a test at 16°C 
is not required for MEPS)  DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    11  
4.4 Calculation of energy consumption for MEPS requirements  
 
Energy consumption in relation to MEPS shall  be calculated as follows:  
 
For an ambient test temperature of 32°C only determine the following values:  
a) The steady -state power Pss for the selected temperature control setting in accordance with the 
KS IEC 62552 -3, Annex  B. Ensure that this power value is corrected for the measured ambient 
temperature in accordance with the KS IEC 62552 -3, Equation  (15). 
b) The representative incremental energy for defrost and recovery ΔEdf in accordance with the 
KS IEC 62552 -3, Annex  C. The number of valid defrost and recovery periods to determine a 
representative value shall meet the requirements as set out in the KS IEC 62552 -3, Clause  C.4, 
Option 1 or Option 2. Any defrost cycle that has been initiated by the test laboratory (forced 
defrost) shall be omitted when determining a representative incremental energy for defrost and 
recovery.  
 
NOTE  An appliance tested with a dry eva porator or subject to forced defrost will give an artificially low value for incremental energy for 
defrost and recovery.  Part 3  Annex C  Ambient temperatures to 
be used for the 
determination of 
representative incremental 
energy for defrost and 
recovery  32°C only (i.e. a test at 16°C 
is not required for MEPS)  
Part 3  Annex C  Values of ΔEdf 
representative incremental  
energy for defrost and 
recovery  Measured value used without 
adjustment  
Part 3  Annex C  Assumed value of ΔThdf 
representative 
temperature difference for 
defrost and recovery used 
for determining the 
calculated compartment 
temperature  0 K.h  (this is a deemed value, 
measured value is not used)  
Part 3  Annex D  The defrost interval ( tdf) to 
be used when determining 
energy consumption 
according to the relevant 
defrost controller type  Elapsed time defrost 
controllers - measured value 
as set out i n the test standard 
Part 3, Clause D.2.  
Compressor run time defrost 
controllers — calculated 
value in accordance with the 
test standard Part 3 Clause 
D.3.  
Compliant variable defrost 
controllers — a deemed 
defrost interval of 60 h is 
applied where the cont roller 
complies with the test 
standard Part 3, Clause D.4.2 
or Clause D.4.3  
Non-compliant variable 
defrost controllers — 
measured or determined 
value in accordance with the 
test standard Part 3, Clause 
D.4.4  
Part 3  Annex H  Determination of 
compartment volume  Rated value stated by the 
supplier   
12  © KEBS 2019 — All rights reserved   
The defrost interval tdf in accordance with the KS IEC 62552 -3, Annex  D, except for a qualifying variable 
defrost control, the defros t interval is set to a default value of 60  h. 
 
c) The daily energy consumption at the selected control setting Edaily in accordance with the KS 
IEC 62552 -3, Equation  (2). 
d) The steady -state compartment  temperature in each compartment  for the selected temperature 
control setting in accordance with the KS IEC 62552 -3, Annex  B. 
 
NOTE  For MEPS  energy determination, the temperature difference during defrost and recovery ΔThdf is not taken into account (this is 
set to a value of zero), so o nly the measured steady -state temperature is used for single point values and interpolation.  
 
4.5  Calculations for the energy rating label  
 
4.5.1  General  
 
This section sets out the equations and procedures for calculating values of the CEC  and the star rating , which 
appear on an energy rating label . 
 
The process consists of measuring the energy consumption and other relevant characteristics of each unit 
tested (see Section 2 ), then calculating the projected annual energy consumption  (PAEC ) of the unit. The 
comparative energy consumption  (CEC ) for the appliance model is determined from the values of PAEC  for 
the units tested to determine the label particulars. The CEC  and normalized volume  (Vnorm ) are then used to 
calculate the BEC, star rating index  and the star rating . 
 
NOTE  For example of calculations carried out on a typical set of test results, see Annex  B. 
 
4.5.2  Number of tests and processing of data  
 
4.5.2.1  Number of units required  
 
When determining the CEC  of a model for labelling, at least one unit of the nominated model shall be tested 
for energy consumption in accordance with the requirements of Clause  4.2. At the supplier’s discretion, energy 
consumption tests can be performed on multiple units and the results aggregated into a single test report for 
a representative single unit. Suppliers may choose to run tests on multiple units of the same model and submit 
a test report for more than one unit.  
 
The energy consumption declared on the energy rating labe l is based on the samples submitted for 
registration . All products supplied  to the market need to comply with the relevant regulatory requirements.  
 
4.5.2.2  Number of tests per unit  
 
Each unit shall be tested with sufficient test runs to enable a valid value of PAEC  to be determined for that 
unit. This determination shall be documented in a test report containing the test results for all test runs used 
to derive PAEC . (See Clause  4.2.) 
 
4.5.3  Projected ann ual energy consumption (PAEC)  
 
5.4.1  PAEC calculation for one appliance  
 
The PAEC  of a single refrigerating appliance shall be calculated to represent energy consumption at 22  °C 
according to Equation  3.1 as follows:  
 
𝑃𝐴𝐸𝐶 =259 ×𝐸𝑑𝑎𝑖𝑙𝑦 32𝐶−𝑙𝑎𝑏𝑒𝑙 +106 ×𝐸𝑑𝑎𝑖𝑙𝑦 16𝐶−𝑙𝑎𝑏𝑒𝑙 +𝑊ℎ𝑒𝑎𝑡𝑒𝑟𝑠 ×8.76+𝑉𝑓𝑟𝑜𝑧𝑒𝑛 ×0.091 +𝑉𝑢𝑛𝑓𝑟𝑜𝑧𝑒𝑛 ×0.274
𝐸𝑓𝑓𝑖𝑐𝑖𝑒𝑛𝑐𝑦 𝑙𝑜𝑎𝑑3.1 
where  
 
259  =  the prescribed number of days operating at an ambient temperature of 32°C  DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    13 Edaily32C -
label  =  the daily energy consumption in kWh/day determined at an ambient 
temperature of 32°C as specified in Clause 4.2  
106 =  the prescribed number of days operating at an ambient temperature of 16°C  
Edaily16C -
label  =  the daily energy consumption in kWh/day  determined at an ambient 
temperature of 16°C as specified in Clause 4.3  
Wheaters  =  the average power in watts of any ambient controlled anti -condensation heater 
present in accordance with the test standard Part 3, Annex F (this is a value of 
0 where th ese auxiliaries are not present)  
8.76  =  a factor that converts average power in watts to kWh/year  
Vfrozen  =  the total volume of all frozen compartments in accordance with the test 
standard Part 3, Annex H and Table 1 of this Standard in litres  
Vunfrozen  =  the total volume of all unfrozen compartments in accordance with the test 
standard Part 3, Annex H and Table 1 of this Standard in litres  
0.091 and 
0.274  =  the deemed user processing load for frozen and unfrozen compartments in 
kWh/year/li tre of volume (equivalent to factors of 0.25 Wh/day/litre and 0.75 
Wh/day/litre respectively)  
Efficiency load-
label  =  the load processing efficiency. At the supplier’s discretion, one of the following 
three values shall be used for Efficiencyload -label —  
a) the measured value of Efficiency load in accordance with the test standard Part 
3, Annex G at an ambient temperature of 32°C divided by two plus the measured 
value of Efficiency load in accordance with the test standard Part 3, Annex G at 
an ambient temperature of 16°C divided by two; or  
b) the measured value of Efficiency load in accordance with the test standard Part 3, 
Annex G at an ambient temperature of 32°C only; or  
c) the rated compressor COP (W/W) according to ASHRAE rating conditions times a 
factor of 0.4. Where a variable output compressor is used, the COP shall be 
determined at the highest speed. The ASHRAE rating conditions for:  
i) Low Back Pressure compressors used  in Groups 4, 5T, 5B, 5S, 6U, 6C and 7 
are: evaporating temperature −23.3°C and a condensing temperature of +54.4°C.  
ii) Medium to High Back Pressure compressors used in Groups 2 and 3 are: 
evaporating temperature −15°C and a condensing temperature of +54.4°C.  
iii) Medium to High Back Pressure compressors used in Group 1 are: evaporating 
temperature −10°C and a condensing temperature of +54.4°C.  
Where the load processing effi ciency is measured, the measured value shall be reported for each 
ambient temperature, as applicable.  
Where a value is based on the compressor rated value, the compressor brand, model, cooling 
capacity (W), power consumption (W) and COP (W/W) at rated output under ASHRAE conditions 
shall be reported. The compressor technical data sheet should be supplied.  
NOTE  1 The highest value for load processing efficiency and lowest PAEC  will be obtained from the average of measured values at 
16°C and 32°C. See Table 1  for the classification of unfrozen compartments  and frozen compartments . 
  
14  © KEBS 2019 — All rights reserved  NOTE  2 According to Kenya metrological data temperature is 28  °C and this ambient is assumed in this Standard when determining the 
PAEC . The IEC has published a technical report that outlines a methodology that is used to incorporate this target ambient in Equation  3.1 
(IEC TR 6306 1). 
 
Where a refrigerating appliance contains a declared automatic control  that could not be defeated for the test, 
or where a circumvention device  is detected, the values for Edaily32C -label  and Edaily16C -label  are adjusted 
in accordance with Equation  2.1 prior to the calculation of PAEC . 
 
Where only a single unit is tested, the value of PAEC  determined in accordance with Equation  3.1 is deemed 
to be PAEC av. 
 
5.4.2   PAEC calculation for multiple units  
 
If more than a single unit is tested in accordance with Clause  5.2.1 , the separate values of PAEC  for each unit 
determined in accordance with Equation  3.1 shall be averaged to give PAEC av. 
 
5.5  Comparative energy consumption (CEC)  
 
The CEC  for a model shall not be less than the PAEC av. The CEC shall  be an integer with units of kWh/y.  
The CEC  declared on the energy rating label should  be representative of the average production energy 
consumption.  
 
The declared CEC  may be greater than the PAEC av to allow for variations such as manufacturing tolerances . 
 
5.6  Normalized volume ( Vnorm ) 
 
5.6.1   Volume normalization factor  
 
The normalized volume  is a value that is used to determine the appliance star rating  and uses the compartment  
size and temperature of operation at an ambient temperature of 28  °C to determine a comparative relative 
overall volume  for each appliance. Normalized volume  is used in the calculation of the BEC. 
 
To determine the normalized volume , the volume  normalization factor for each compartment  (Nf) shall be 
determined firstly from Table 3 . 
 
Table 3  — Volume normalization factors for specified types of compartments  
 
Compartment type  Volume normalization 
factor  
(Nf) 
Pantry  0.456  
Cellar, Wine Storage  0.666  
Fresh food  1.000  
Chill 1.083  
Ice-making (zero -star) 1.166  
Ice-making (one -star) 1416  
Short -term frozen food storage 
(two-star) 1.666  
Freezer (three -star and four -star) 1.916  
NOTE The volume normalization factor assumes an average ambient 
temperature of 28°C to calculate a relative heat gain factor for each 
compartment type (relative to fresh food) at its target temperature for 
energy consumption.  
 
5.6.2   Variable temperature compartments  
 
The volume  normalization factor to be applied to any variable temperature compartment shall  be determined 
by the compartment  type that is applicable when it is set to the function selected for continuous operation 
during the determination of energy consumption . The primary function selected for energy labelling 
determination is the function that results in the highest energy consumption (usually the coldest function). 
Additional functions can be selected as set out in Clause  4.10 (see Table 4 ).  DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    15  
Table 4  — Group configuration adjusters for determination of normalized volume  
 
 
The normalized volume  of an appliance (for determination of energy labelling) is then given by the following 
equation:  
 
                                                                                                  3.2 
 
where 
 
Vnorm  =  the calculated normalized volume for the appliance in litres ;  
Vi  =  the volume for compartment i (from l to ncompartments ) in litres determined in 
accordance with the test standard Part 3, Annex H ;  
Nfi  =  the volume normalization factor for compartment i (from l to ncompartments ) from 
Table 3 ; and   
Jnorm  =  the Group configuration adjuster from Table 4 for the relevant Group . 
 
NOTE  for most appliance layouts, the normalized volume should  be similar to the total volume . 
 
5.7  Base energy consumption (BEC)  
 
5.7.1  General  
 
The base energy consumption  for an appliance model shall be calculated  using the following equation:  
                                                                                  3.3 
 
where  
Cf  =  fixed allowance factor for its Group in kilowatt hours per year ;  
Cv  =  variable allowance factor for its Group in kilowatt hours per litre per 
year; and   
Vnorm  =  normalized volume for the model in litres in accordance with Clause 
5.6. 
The BEC is not rounded.  
 
Factors Cf and Cv shall be in accordance with Table 5 . 
 
Group  Representative layout  Compartment temperature 
(normalization factor)  Group configuration 
adjuster ( Jnorm ) 
1, 2 and 3  90 % Fresh food  
10 % one -star +4.0 °C (1.0)  
−6.0 °C (1.416)  1.0417  
 
4, 5T, 5B and 5S  70 % Fresh food  
30 % Freezer  +4.0 °C (1.0)  
-18.0 °C (1.916)  1.2748  
6C, 6U and 7  100 % Freezer  -18.0 °C 1.916)  1.916   
16  © KEBS 2019 — All rights reserved  5.7.2  Calculation of normalized volume  
 
To determine normalized volume  for a refrigerating appliance, the relevant Group configuration  adjuster is 
selected. These are based on prescribed representative layouts for each Group . 
 
Table 5  — Fixed and variable allowa nce factors  
 
Appliance 
Group  Fixed allowance factor ( Cf) 
kWh/y  Variable allowance factor ( Cv) 
kWh/L/y  
1, 2 and 3  90 4.5 
4, 5T, 5B and 
5S 55 10.0 
6C, 6U and 7  120 7.5 
 
 
5.8 Star rating index (SRI)  
 
To determine the star rating index  of a refrigerating appliance, an energy reduction factor (ERF) of 0.18 shall 
be used for all Groups . 
 
The star rating index shall  then be given by the following equation:  
𝑆𝑡𝑎𝑟  𝑟𝑎𝑡𝑖𝑛𝑔  𝑖𝑛𝑑𝑒𝑥 =1+[log 𝑒(𝐶𝐸𝐶
𝐵𝐸𝐶)
log 𝑒(1−𝐸𝑅𝐹 )]                                                  3.4 
where  
CEC  =  comparative energy consumption for the model in kWh/y (see 
Clause 5.5  
BEC  =  base energy consumption for the model in kWh/y (see Clause 
5.7)  
ERF  =  energy reduction factor, which equ als 0.18 for all appliance 
Groups  
NOTE  1 Where the CEC  of a model is equal to its base energy consumption  (BEC), its star rating index  is 1.00.  
 
NOTE  2 The energy reduction factor (ERF) is the proportion by which the CEC  of a model would have to be reduced to increase its star 
rating index  by 1.00. For all Groups  this represents 18  % reduction in energy consumption per additional star earned.  
 
5.9 Star rating  
 
The star rating shall  be obtained from Table 6  using the star rati ng index  (SRI) determined according to 
Clause  5.8 
NOTE  1 See Annex  C for a method to estimate the CEC  required for any particular target star rating . 
 
NOTE  2 For an example of calculations carried out on a typical set of test results, see Annex  B. 
 
Table 6  — Determination of star rating  
 
SRI Star rating  
𝑆𝑅𝐼 <2.0 1 
2.0≥𝑆𝑅𝐼 <3.0 2 
3.0≥𝑆𝑅𝐼 <4.5 3 
4.5≥𝑆𝑅𝐼 <6.0 4 
6.0≥𝑆𝑅𝐼 5 
 
5.9.1   Energy labelling and MEPS for products with variable temperature compartments and 
multiple Groups  
 DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    17 Where a refrigerating appliance contains one or more variable temperature compartments , the compartment  
function selected for each variable temperature compartment  for the determination of energy consumption 
shall be that which results in the highest energy consumption for the refrigerating appliance. This value shall 
be used to determine the primary comparative energy consumption  and the star rating  for the appliance shown 
on the energy rating label . 
 
However, whe re one or more variable temperature compartments  can be operated in a way that can change 
the Group , the manufacturer may elect to claim the energy consumption and star rating  for each such Group  
in addition to the primary comparative energy consumption . 
 
Any claimed additional Groups  for a model which are documented in the product literature shall be separately 
registered for energy labelling and MEPS  for the model. Each Group  registered will be individually listed on 
the energy rating website. Each additi onal Group  registered shall comply with the relevant MEPS  requirements 
for the Group  registered.  
 
The product needs to be capable of meeting the pull down test and the storage test requirements (see 
Clauses  5.3 and 5.4) for all claimed Groups . However, onl y a single set of test reports for the Group  that has  
the highest energy consumption is required to demonstrate compliance with the storage test or pull down test 
requirements for the purposes of energy labelling and MEPS registration . 
 
The details on the energy rating label  displayed on the product shall show the registered details for the primary 
Group  nominated.  
 
NOTE  A separate application for each Group  claimed needs to be submitted for the model.  
 
6 Performance criteria  
 
6.1 General  
 
The criteria set out in Clauses  6.1 to 6.11 shall be met by each unit tested, for the refrigerating appliance model 
to comply with energy labelling and MEPS  requirements.  
 
6.2 Total volume  
 
The volume of  each compartment  and total volume  of the appliance shall be measured in accordance with 
Annex  H of the KS IEC 62552 -3. 
 
6.3 Pull-down  
 
The refrigerating appliance shall be tested in accordance with Annex  A of the test standard  Part 2. The test 
shall be conducted in an ambient temperature of 43°C, irrespective of th e climate class of the product.  
 
All refrigerating appliances shall achieve a pull down time of 6  h or less in all relevant compartments . 
 
While all units within a model are required to meet the pull down requirements, a test report for at least one 
unit is required to confirm this for the purposes of energy labelling and MEPS registration . 
 
6.4 Storage test  
 
The refrigerating appliance shall meet the requirements set out in Section 6  of the test standard  Part 2 when  
tested at ambient temperatures + 10  °C and + 32  °C, irrespective of the claimed climate class for the 
refrigerating appliance.  
 
While all units within a model are required to meet the storage test requirements in the test standard  Part 2, a 
test report for at least one unit is required to confirm this for the purposes of energy labelling and MEPS 
registration . 
 
6.5  Adjusted volume ( Vadj) 
  
18  © KEBS 2019 — All rights reserved  6.5.1   Volume adjustment factors  
 
The adjusted volume  is a value that is determined for the purposes of MEPS  assessment and uses the relative 
temperature of operation for each compartment  at an ambient temperature of 32°C to weight the volume  of 
each compartment . 
 
To determine the adjusted volume  of each compartment  to assess compliance with MEPS , the volume  
adjustment factor for each compartment  (Ks) shall be determined from Table 7 . 
 
Table 7  — Volume adjustment factors for specified types of compartments  
 
Compartment type  Volume adjustment factor  
(Ks) 
Pantry  0.5357  
Cellar  0.7143  
Fresh food  1.0000  
Chill 1.0714  
Ice-making (zero -star) 1.1429  
Ice-making (one star)  1.3571  
Short -term frozen food storage (two -star) 1.5714  
Freezer (three -star and four -star) 1.7857  
 
6.5.2  Variable temperature compartments  
 
The volume  adjustment factor to be applied to any variable temperature compartment shall  be determined by 
the compartment  type that is applicable when it is set to the function selected for continuous operation during 
the determination of energy consumption. The function selected for MEPS  determination shall be the function 
that results in the highest energy consumption (usu ally the coldest function).  
 
6.5.3   Determination of total adjusted volume  
 
The adjusted volume  of a compartment  is given by the following equation:  
𝑉𝑎𝑑𝑗=𝑉𝑖×𝐾𝑠𝑖(𝑙𝑖𝑡𝑟𝑒𝑠 )                                                                                     4.1 
 
where 
 
Vi  =  rated volume of compartment i in litres determined in accordance with 
the test standard Part 3, Annex H ; and   
Ksi  =  volume adjustment factor for the compartment type for compartmenti 
as specified in Table 7 . 
 
The total adjusted volume Vadj-tot is the sum of the adjusted volume  values for all compartments . 
 
6.6 Projected MEPS energy consumption (PMEC)  
 
Determine the projected MEPS energy consumption  (PMEC ) for each unit tested as follows:  
365  =  the prescribed number of days operating at an ambient 
temperature of 32  °C  
Edaily32C -
MEPS  =  the daily energy consumption in kWh/day determined at an 
ambient temperature of 32°C as specified in Clause 4.3  DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    19  
 
 
 
 
 
 
 
 
 
𝑃𝑀𝐸𝐶 =365 ×𝐸𝑑𝑎𝑖𝑙𝑦 32+8.76×𝑊ℎ𝑒𝑎𝑡𝑒𝑟                                                                                   4.2 
 where  
 
Where a refrigerating appliance contains a declared automatic control  that could not be defeated for the test, 
or where a circumvention device  is detected, the value for Edaily32C -MEPS  is adjusted in accordance with 
Equation  2.1 prior to the calculation of PMEC  
. 
6.7  MEPS  
 
6.7.1   General  
 
For all refrigerating appliances, the MEPS  cut-off levels are defined in Clause  4.7.2 . For compact refrigerating 
appliances  only (with a footprint that is less than 0.36m 2), the supplier may elect to use the MEPS  levels 
defined in Clause  4.7.3  as specified.  
 
6.7.2   MEPS — All Groups  
 
From the date set out in the relevant legislation , the PMEC  for each unit when determined in accordance with 
Clause  4.6 shall not exceed the MEPS  cut-off level, which is determined as follows:  
 
MEPS  cut-off level = 𝐾𝑓+𝐾𝑉×𝑉𝑎𝑑𝑗𝑡𝑜𝑡 +𝐴𝑤𝑖+𝐴𝑏𝑖(𝑘𝑊ℎ𝑦⁄)                                                 4.3 
 
where  
Kf  =  fixed allowance factor for its appliance Group (see Table 8) (kWh/year) ; 
Kv  =  variable allowance factor (see Table 8) (kWh/y/L) ; 
Vadj tot  =  total adjusted volume (see Clause 4.5) (litres) ;  
Awi  =  an allowance of 52 kWh/y which applies where an appliance has a “through -the-door 
ice dispenser”, that is, it has an automatic ice -maker coupled with a device for 
delivery on demand of ice externally through a door (without opening the door). This 
allowance also applies if the through -the-door dispenser also dispenses chilled 
water. A chilled water dispenser alone is not eligible for this allowance. Multiple 
“through -the-door ice dispensers” are only eligible for one allowance;  and 
Abi  =  an allowance of 40 kWh/y for all Groups except Group 5S, which has an allowance 
of 100 kWh/year, that applies where an appliance complies with the definition of a 
built in product as set out in Clause 1.6.3.  
 
NOTE  1 An example of a calculation of a MEPS  cut off level is included in Annex  B. 
 
NOTE  2 If any of the individual test results are close to the MEPS  limit or if there is significant variation in the sample results, 
manufacturers should  only proceed with caution after additional testing indicates that they are confident that all production units are likely 
to pass the MEPS  requirement.  
 
6.7.3   MEPS Option — Compact refrigerating appliances  
 
For a model that complies with the definition of a compact refrigerating appliance  as set out in Clause  1.6.6 , 
the supplier may elect to use the Compact MEPS  level below instead of the MEPS  level defined in 
Clause  4.7.2 . Group  6C are not eligible for the Compact MEPS  level, irrespective of the footprint area . In the Wheaters -  =  the average power in watts of any ambient controlled anti -
condensation heater present in accordance with the test 
standard Part 3  
8.76  =  a factor that converts average power in Watts to kWh/year   
20  © KEBS 2019 — All rights reserved  case where the Compact MEPS  level is used, no allowances for a “through -the-door ice dispenser” or for built 
in products  can be included. If a supplier wishes to claim these feature allowances, the MEPS  levels for 
standard products in Clause  4.7.2  shall be used.  
 
From the date set out in the relevant legislation , a compact refrigerating appliance  the PMEC  for each unit 
when determined in accordance with Clause  4.6 shall not exceed the Compact MEPS  cut-off level, which is 
determined as follows:  
 
Com pact MEPS  cut-off level =  
 
                                                                                 4.4 
where  
Kf  =  fixed allowance factor for its appliance Group (see Table 8) (kWh/year) ;  
Kv  =  variable allowance factor (see Table 8) (kWh/y/L) ;  
Vadj-tot  =  total adjusted volume (see Clause 4.5) (litres) ;  
W  =  is the external width of the refrigerating appliance in metres ; and   
D  =  is the external depth of the refrigerating appliance in m etres.  
 
NOTE  A refrigerating appliance has to have a base area of less than 0.36m2 (W × D) to qualify as a compact 
product under this Standard.  
 
6.7.4   Fixed and variable allowance factors ( Kf and Kv) 
 
The fixed and variable allowance factors used in Equation  4.3 or Equation  4.4 (as applicable) are determined 
from the Group  as specified in Table 8 . 
 
Table 8  — MEPS cut -off level factors  
 
Appliance Group  Fixed Allowance Factor(Kf)  
kWh/y  Variable Allowance Factor(Kv)  
kWh/y/l  
1 219.3  0.2717  
2 181.4  0.2247  
3 270.9  0.3397  
4 247.3  0.3101  
5T 256.9  0.3133  
5B 348.1  0.3431  
5S 327.4  0.3304  
6C 182.2  0.4375  
6U 252.0  0.2559  
7 296.9  0.3960  
 
6.8 Temperature excursions during defrost and recovery  
 
The intent of this clause is to ensure that the refrigerating appliance limits the duration and extent of any defrost 
temperature excursion to ensure that food safety and quality is maintained during normal operation.  
Where a product has a defrost control cycle, during the defrosting operation in an energy consumption test, 
the maximum temperatur e of any freezer compartment  air temperature sensor shall not exceed 0°C for a 
period of more than 20  min. This assessment should  be undertaken for each freezer compartment  temperature 
sensor for each defrost. See Figure 1  and Figure 2 for examples. For verification tests, the test  run selected 
DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    21 shall be valid for a single point energy determination where the freezer compartment  average temperature is 
at or below the target temperature.  
 
 
 
NOTE  This figure is a schematic representation of requirement as defined in Clause  4.8 and it passes the performance requirements of 
Clause 6.8 . 
 
Figure 1  — Example of meeting the requirement defined in Clause 6.8  
 
 
 
Figure 2  — Example of failing the requirement defined in Clause  6.8 
 
6.9 Requirements regarding disposal of moisture  
 
Any automatic defrost system shall meet all ongoing defrosting needs, without any user intervention, as may 
occur under a wide range of normal use cond itions.  
 
Under any ambient condition or test control setting specified in this Standard, any excess melting or condensed 
water from an evaporator or other refrigerated surface of the appliance shall be collected, evaporated or 
otherwise disposed without th e need for user intervention.  
 
22  © KEBS 2019 — All rights reserved   
6.10 Declared automatic controls  
 
When a refrigerating appliance contains a declared automatic control , it shall be declared in the product 
registration . Information on the purpose and operation of the control shall be provided by the supplier in the 
product registration . When a declared automatic control  is present, the refrigerating appliance shall meet all 
the relevant performance requirements of Section 6 , with and without the declared automatic control  operating . 
 
Declared automatic controls  are to be set up and configured to operate during energy tests as they would 
under normal use conditions. Information on whether these controls operate during normal use, whether they 
are likely to operate during energy tests  (in the absence of normal use activities) and how to correctly configure 
these controls for energy testing (in order to minimize the impact on the energy measurement), shall be 
provided by the supplier.  
 
NOTE  A declared automatic control  could include, fo r example, a “holiday” mode that defers defrosting when there are no door openings 
for an extended period. This type of control is permitted but has to be defeated during energy tests because it does not oper ate during 
normal use.  
 
Any declared automatic control  that may activate during an energy test shall be noted in the product 
registration.  The test laboratory may undertake appropriate (minimal) actions, where applicable, to ensure that 
such controls do not operate as per normal use during an energy te st. Where a low ambient temperature 
compensation heater is present, it shall be noted in the product registration . 
 
Declared automatic controls  are generally not treated as circumvention devices  where information about their 
purpose and operation is included in the registration . 
 
The following controls and devices are not included in the scope of declared automatic controls  — 
a) automatic controls that are required for the maintenance of satisfactor y food preservation 
temperatures within unfrozen compartments  in a refrigerator -freezer  when operating at low ambient 
temperatures (low ambient temperature compensation heaters); or  
 
b) compliant variable defrost controls that comply with the requirements of the KS IEC 62552 -3, Annex  D; 
or 
 
c) ambient controlled anti -condensation heaters (within the scope of the KS IEC 62552 -3, Annex  F). 
 
Specific requirements regarding ambient controlled anti -condensation heaters are set out in the KS IEC 62552 -
3, Annex  F. Low a mbient temperature compensation heaters are allowed to operate normally for energy tests. 
Additional controls that are outside the scope of declared automatic controls  may be added by amendment to 
this clause.  
 
6.11 Circumvention devices  
 
6.11.1  General  
 
Any refrigerating appliance that is found to contain a circumvention device  which reduces energy consumption 
shall have the additional energy penalty quantified as specified in Section 4.1  and this shall be included in the 
appliance’s measured energy consu mption for verification tests.  
 
A refrigerating appliance may contain a declared automatic control  that alters the energy consumption during 
normal use or under other specific conditions. Declared automatic controls  are controls that could be 
interpreted a s circumvention devices  if they are not declared by the supplier but are subsequently detected. 
Suppliers are required to declare these in the product registration , including information on how they work, the 
basis for the operation and how to ensure that they do not operate during energy tests as set out in 
Clause  4.10. 
 
6.11.2  Circumvention detection during a check test  
 
Where the presence of a circumvention device  is suspected during a check test , the test laboratory should  
report the suspected circumvention to the relevant regulator, who will determine appropriate action. Regulators 
may request test laboratories to undertake investigative tests to identify possible circumvention devices . DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    23  
7 Marking requirements  
 
7.1 General  
 
Refrigerating appliances markings shall comply with Clauses  5.2 to 5.7. Refer to KS IEC  60335.1 for  
requirements on legible and durable marking.  
 
7.2 Model details  
 
The model, serial number and Group shall  be durably and legibly marked on the appliance.  
Where an appliance can be configured to operate as more than one Group  and this option is claimed, then the 
Group  and the refrigerating appliance designation  for each configuration shall  be marked.  
 
7.3 Model identification  
 
Any model identification, either on the appliance or in the product literature, and which may be interpreted as 
indicating a rated total volume  in litres shall not be numerically greater than the rated volume . 
 
7.4 Volume  
 
The total volume  and the volume  and t ype of each compartment shall  be durably and legibly marked on the 
appliance in litres.  
 
7.5 Intended use markings  
 
The marking on the appliance and all other indications of intended use, including compartment  type and 
refrigerating appliance designation , appe aring either on the appliance or in the product literature shall not be 
inconsistent with the classification of the appliance in accordance with Clauses  1.6.14  and 1.6.19 . 
 
7.6 Marking location  
 
Markings of brand, model, Group  (see Clause  5.2) and rated volumes  (see Clause  5.4) shall be visible when  
the appliance is installed as in normal use.  
 
7.7 Date of manufacture  
 
The date of manufacture of each appliance shall be able to be determined from information legibly and durably 
marked on the appliance. The dat e of manufacture may be non -encrypted, encrypted or able to be determined 
from a serial number or other markings on the appliance and shall be visible when the appliance is in its 
position of normal use. Information on how to determine the date of manufact ure shall be provided in the 
registration  
 
8 Printing and placement of energy rating labels  
8.1 Placement  
 
At the time of supply , the energy rating label shall  be  
 
a) clearly visible; and  
b) affixed to the packaging and product  
 
The energy rating label shall  be adhered to the upper por tion of each appliance; either  
 
a) for an upright  appliance, on the outside of the door; or  
b) for an appliance of chest configuration , on the lid.  
  
24  © KEBS 2019 — All rights reserved  In the case of a chest -configured appliance where the lid is of the lift -off type (i.e.  not attached by a hinge or 
similar), or if the lid surface is unsuitable for attachment of a label, the label shall be adhered in a conspicuous 
location on the front of the appliance.  
 
8.2 Mater ial and shape  
 
The label shall be designed as set out in Clause  6.5. 
 
The label shall be a self -adhesive label . 
 
All labels shall be suitably affixed to the product to ensure that they remain in place and visible while on display 
at the point of sale.  
 
NOT E Where labels are removed from products which are on display at the point of sale, the retailer may be subject to fines under 
energy labelling regulations.  
 
8.3 Label specifications  
 
Refer to A nnex D . 
 
 
 
 
 
 
 
 
 
 
Annex  A 
(informative)  
 
Example determinations of  appliance Group  
 
This Annex  sets out a number of hypothetical refrigerating appliances and the applicable Group  for each. 
Details of the calculations are summarized in Table  A.1. 
 
EXAMPLE 1  
 
Unfrozen compartments:  fresh food — 330 l, cellar — 80 l 
Unfrozen defrost system:  cyclic  
Frozen compartments:  none  
Therefore:  Refrigerating appliance designation is refrigerator  
Group = 1 
 
EXAMPLE 2  
 
Unfrozen compartments:  fresh food — 100 l, cellar — 140 l  DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    25 Unfrozen defrost system:  cyclic  
Frozen compartments:   none  
Therefore:  Refrigerating appliance designation is cooled appliance (fresh food is 
less than 50 % of unfrozen volume — see Clause 1.6.19(b)(i) and (ii) as 
appropriate, and Clause 1.6.19(d))  
Group = 1 
EXAMPLE  3 
 
Unfrozen compartments : fresh food — 380 l  
Unfrozen defrost system:  automatic but not cyclic  
Frozen compartments : none  
Therefore:  Refrigerating appliance designation is refrigerator  
Group = 1 
EXAMPLE 4  
 
Unfrozen compartments : fresh food — 260 l  
Unfrozen defrost system:  manual  
Frozen compartments : sub-compartment — 30 l ice -making (one -star) 
Frozen defrost system:  manual  
EXAMPLE 5  
 
Unfrozen compartments : fresh food — 260 l, cellar — 60 l 
Unfrozen defrost system:  manual  
Frozen compartments : sub-compartment — 50 l short -term frozen 
food (two -star) 
Frozen defrost system:  manual  
Therefore:  Refrigerating appliance designation is refrigerator  
Group = 3 
EXAMPLE 6  
  
26  © KEBS 2019 — All rights reserved  Unfrozen compartments : cellar — 200 l  
Unfrozen defrost system:  manual  
Frozen compartments : sub-compartment — 40 l; short -term frozen 
food (two -star) 
Frozen defrost system:  manual  
Therefore:  Refrigerating appliance designation is cooled appliance (no fresh food)  
Group = 3 
EXAMPLE 7  
 
Unfrozen compartments : fresh food — 350 l  
Unfrozen defrost  system:  cyclic  
Frozen compartments : freezer — 90 l 
Frozen defrost system:  manual  
Therefore:  Refrigerating appliance designation is refrigerator/freezer  
Group = 4 
EXAMPLE 8  
 
Unfrozen 
compartments : fresh food — 350 l, cellar — 80 l 
Unfrozen defrost 
system:  cyclic  
Frozen 
compartments : freezer — 140 l; short -term frozen food (two -star) — 80 l 
Frozen defrost 
system:  manual  
Configuration:  side by side  
Therefore:  Refrigerating appliance designation is cooled appliance [less than 80 % of 
frozen compartment volume is freezer and the volume of other frozen 
compartments exceeds 30 l – see Clause 1.6.19(b)(i) and (ii) as appropriate 
and Clause 1.6.19(d)]  
Group = 4 (note that side by side configuration does not affect Group in this case)  
EXAMPLE 9  
Unfrozen compartments : fresh food — 200 l  DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    27 Unfrozen defrost system:  manual  
Frozen compartments : freezer sub -compartment — 80 l; ice -making 
sub-compartment — 20 l 
Frozen defrost system:  manual  
Therefore:  Refrigerating appliance designation is refrigerator/freezer [80 % of 
frozen compartment volume is freezer — see Clause 1.6.19(b)(i) and 
(ii) as appropriate]  
Group = 3 (as unfrozen compartment is not automatic defrost)  
 
EXAMPLE 10  
Unfrozen compartments : fresh food — 400 l  
Unfrozen defrost system:  cyclic  
Frozen compartments : freezer — 150 l  
Frozen defrost system:  automatic  
Configuration : upright : freezer compartment is at the bottom  
Therefore:  Refrigerating appliance designation is refrigerator/freezer  
Group = 5B 
EXAMPLE 11  
Unfrozen compartments : fresh food — 420 l  
Unfrozen defrost system:  automatic  
Frozen compartments : freezer — 160 l  
Frozen defrost system:  automatic  
Configuration:  upright : freezer compartment is not at the bottom  
Therefore:  Refrigerating appliance designation is refrigerator/freezer  
Group = 5T 
EXAMPLE 12  
Unfrozen compartments : fresh food — 420 l   
28  © KEBS 2019 — All rights reserved  Unfrozen defrost system:  automatic  
Frozen compartments : freezer — 210 l  
Frozen defrost system:  automatic  
Configuration:  side by side  
Therefore:  Refrigerating appliance designation is refrigerator/freezer  
Group = 5S 
EXAMPLE 13  
Unfrozen compartments : fresh food — 420 l  
Unfrozen defrost system:  automatic  
Frozen compartments : freezer — 160 l; short -term frozen food (two -star) — 50 l 
Frozen defrost system:  automatic  
Configuration:  side by side  
Therefore:  Refrigerating appliance designation is cooled appliance [less than 80 % of 
frozen compartment volume is freezer and the volume of other frozen 
compartments exceeds 30 l — see Clause 1.6.19(b)(i) and (ii) as appropriate, 
Clause 1.6.19(d) and NOTE 4 of Table 1]  
Group = 5T 
 
EXAMPLE 14  
Unfrozen compartments : chill compartment — 60 l; cellar compartment 
— 90 l; fresh food — 380 l  
Unfrozen defrost system:  automatic  
Frozen compartments : freezer 1 — 100 l; freezer 2 — 80 l 
Frozen defrost system:  automatic  
Configuration:  upright — cellar and chill compartments are at 
the top, fresh food compartment in the middle, 
freezer compartments at the bottom  
Therefore:  Refrigerating appliance designation is refrigerator/freezer  
Group = 5B 
EXAMPLE 15  
Unfrozen compartments : chill compartment — 50 l; cellar compartment 
— 80 l; fresh food — 375 l  DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    29 Unfrozen defrost system:  automatic  
Frozen compartments : freezer — 130 l; two-star — 30 l (ice -making)  
Frozen defrost system:  automatic  
Configuration:  upright — Layer 1 (top): fresh food, Layer 2: 
two-star and chill. Layer 3: freezer , Layer 4: 
cellar  
Therefore:  Refrigerating appliance designation is refrigerator/freezer (more than 
than 80 % of frozen compartment volume is freezer , other frozen do not 
exceed 30 l )  
Group = 5T ( freezer is not at the bottom, not side by side)  
EXAMPLE 16  
Unfrozen compartments : none  
Frozen compartments : freezer — 250 l  
Frozen defrost system:  automatic  
Configuration:  chest  
Therefore:  Refrigerating appliance designation is freezer  
Group = 6C  (defrost system does not 
affect Group for chest type)  
 
EXAMPLE 17  
Unfrozen compartments : none  
Frozen compartments : freezer — 250 l  
Frozen defrost system:  manual  
Configuration:  chest  
Therefore:  Refrigerating appliance designation is freezer  
Group = 6C  
EXAMPLE 18  
Unfrozen compartments : none  
Frozen compartments : freezer — 250 l; short -term frozen food (two -star) — 60 l 
Frozen defrost system:  automatic  
Configuration:  upright   
30  © KEBS 2019 — All rights reserved  Therefore:  Refrigerating appliance designation is cooled appliance [more than 80 % 
frozen compartment volume is freezer but the volume of other frozen 
compartments exceeds 30 l — see Clause 1.6.19(b)(i) and (ii) as appropriate]  
Group = 7 
EXAMPLE 19  
Unfrozen compartments : none  
Frozen compartments : freezer — 250 l; short -term frozen food (two -star) — 70 l 
 
 
 
Frozen defrost system:  manual  
Configuration:  upright  
Therefore:  Refrigerating appliance designation is cooled appliance [as less than 80 % of 
frozen compartment volume is freezer — see Clause 1.6.19(b)(i) and (ii) as 
appropriate and Clause 1.6.19(d)]  
Group = 6U  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    31  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Annex  B 
(informative)  
 
Example of energy efficiency calculations  
B.1 General  
 
This Annex  assesses the energy consumption and performance of a hypothetical refrigerating appliance 
against the requirements of this Standard. Using the appliance details and test results provided, calculations 
are performed to determine the energy  rating label  details and to assess MEPS  compliance. Calculation of the 
following parameters is illustrated:  
 
a) Normalized volume . 
b) Adjusted volume . 
c) Daily energy consumption for energy labelling.  
d) Daily energy consumption f or MEPS . 
e) Projected Annual Energy Consumption (PAEC) . 
f) Comparative Energy Consumption (CEC) . 
g) Base energy consumption (BEC) . 
h) Star Rating Index (SRI) . 
i) Star rating . 
j) Projected MEPS Energy Consumption (PMEC) . 
k) The MEPS  cut-off level.  
l) Whether the model complies with MEPS requirements.  
 
B.2 Classification of the appliance  
 
Using the information given and the relevant clauses in this Standard and the test standard , the classification 
of the appliance is as follows:  
 
a) Compartment  type — details for compartments  are shown in Figure  B.1. 
b) Appliance configuration  — upright (see Clause  1.6.10 ). 
c) Refrigerating appliance designation  — refrigerator/freezer  (see Clause  1.6.19 ). 
 
Appliance Group  — 5T (see Table 1 ). 
Defrost type: Automatic (all compartments ). 
Defrost controller type — variable.  
 
  
32  © KEBS 2019 — All rights reserved   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Dimensions in millimetres  
 DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    33  
 
 
Figure B.1  — Layout and volume by compartment type of the example appliance  
 
B.3 Appliance details  
 
B.3.1  General  
 
The appliance is a 380 l frost -free unit with a variable defrost control. The rated volume  in accordance with the 
KS IEC 62552 -3, the location and type of each compartment  are shown in Figure  B.1. The appliance does not 
have a through -the-door ice dispenser. However, the appliance does have an ambient controlled anti -
condensation heater.  
 
B.3.2  Normalized volume and adjusted volume  
 
 
34  © KEBS 2019 — All rights reserved  The volume  for each compartment  and the relevant adjustment factors are set out in Table  B.1. 
 
The normalized volume  is given by Equation  B.3.2  (1) as follows:  
B.1 
= 
 litres  
 
The adjusted volume  for each compartment  i is given by Equation  B.3.2  (2) as follows:  
 
Vadj = Vi × Ksi (litres)B.2  
 
The sum of the adjusted volume  for each compartment  is 429.642  l as shown in Table  B.1. 
The total volume  of frozen compartments , as set out in Table  B.1, is 90  l, while the  total volume  of unfrozen  
compartments  is 290  l. 
 
B.3.3  Other declared values  
 
The unit has a variable defrost system. The longest and shortest possible defrost intervals in an ambient 
temperature of 32°C have been declared by the manufacturer as 75  h and 5.5  h respectively.  
 
The appliance has an ambient controlled anti -condensation heater. The declared heater power map for the 
defined temperature and humidity bin s in the KS IEC 62552 -3, Annex  F are set out in Table  B.2. 
 
Table B.2  — Ambient controlled anti -condensation heater: Declared power map  
 
Relative  
Humidity bin  Power W at 
16 °C Power W 
at 22  °C Power W at 
32 °C 
0 % – 10 %  0 1 3 
10 %  – 20 %  0 1 3 
20 %  – 30 %  1 2 4 
30 %  – 40 %  1 2 4 
40 %  – 50 %  2 3 5 
50 %  – 60 %  2 4 6 
60 %  – 70 %  3 5 7 
70 %  – 80 %  4 6 8 
80 %  – 90 %  5 7 9 
90 %  – 100 %  6 8 10 
 
The appliance does not have any manually switched anti -condensation heaters. The appliance does not have 
an automatic ice maker or water dispenser. The appliance is not built in and does not have a compact footprint.  
 
B.4 Energy data measured for the appliance  
 
Energy data measured in accordance with the KS IEC 62552 -3 is summarized in Table  B.3 and Table  B.4.  
 
Note that the KS IEC 62552 -3, Annex  I has detailed examples on the calculation of daily energy  consumption 
and the use of interpolation across a range of different cases.  
 
Table B.3  — Measured steady -state power results at 16°C  
DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    35  
Test Point  Point 1  Point 2  Point 3  Target Temperature  
 
Compartment A °C −18.8  −17.1  −19.8  −18 
Compartment B °C −2.1 −0.1 −0.7 0 
Compartment C °C  0.7 3.3 2.3 4 
Compartment D °C  1.2 5.3 4.3 4 
Compartment E °C 8.6 11.2 9.3 12 
Steady -state power W Pss 17.6 15.6 17.2  
NOTE Measured values for steady -state power Pss1 or Pss2 as specified in the test standard Part 3 
are corrected back to the nominal ambient test temperature as set out in the test standard Part 3, 
Equation (15) to give values for PSS as shown.  
 
 
Table B.4  — Measured steady -state power results at 32  °C 
 
Test Point  Point 1  Point 2  Point 3  Target 
Temperature  
Compartment A °C −20.7  −17.5  −16.0  −18 
Compartment B °C −2.1 −0.1 −0.7 0 
Compartment C °C  0.7 3.3 2.3 4 
Compartment D °C  6.5 0.8 7.1 4 
Compartment E °C 8.6 11.2 9.3 12 
Steady -state power W Pss 39.0 36.8 31.7  
NOTE Measured values for steady -state power Pss1 or Pss2 as specified in the test standard Part 3 
are corrected back to the nominal ambient test temperature as set out in the test standard Part 3, 
Equation (15) to give values for PSS shown.  
 
During energy tests, the following load processing efficiency results were measured in accordance with the KS 
IEC 62552 -3, Annex  G, Clause  G.5.4, Equation  (52) as follows:  
 
Load processing efficiency at a test temperature of 16°C: 1.638 (dimensionless, Wh/Wh)  
Load processing efficiency at a test temperature of 32°C: 1.350 (dimensionless, Wh/Wh)  
 
Defrost events did not occur during the load processing efficiency test, so no co rrection to the measured values 
in accordance with Equation  2.2 is required.  
During test measurements, the representative energy and temperature change for defrost and recovery were 
determined as set out in Table  B.5. 
 
Table B.5  — Measured defrost characteristics  
 
Test Point  Ambient 
16 °C Ambient  
32 °C  
36  © KEBS 2019 — All rights reserved  Comp A ΔThdf -A K.h 4.6 5.3 
Comp B ΔThdf -B K.h 0.1 0.2 
Comp C ΔThdf -C K.h 0.2 0.5 
Comp D ΔThdf -D K.h 1.1 0.9 
Comp E ΔThdf-E K.h 0.5 0.8 
Representative incremental energy for defrost and 
recovery ΔEdf Wh (measured)  105.6  112.3  
 
B.5 Calculation of key energy parameters  
 
B.5.1  General  
 
Prior to the calculation of energy rating label  values and assessment of MEPS  compliance, it is necessary to 
calculate several key parameters.  
 
B.5.2  Defrosting parameters  
 
The KS IEC 62552 -3, Annex  D sets out the calculation of defrost interval for different controller types. For 
variable controllers, the default defrost interval is given by the KS IEC 62552 -3, Equation  (27) as follows:  
                                                                                B.3 
For this appliance, the default defrost interval is given by:  
 
 = 21.263 hours                                                                      B.4  
 
This value does not exceed 24  h as specified in Clause  5.2.2  (f), so it i s acceptable for energy labelling.  
 
As specified in the KS IEC 62552 -3, Clause  D.4.2, the calculated defrost interval for 16°C is double that of 
32°C, which is equal to 42.526  h for energy labelling.  
 
As specified in Clause  4.3, the deemed defrost interval for MEPS  for a complying variable defrost controller is 
60 h. 
 
As specified in Clause  5.2, the measured representative incremental energy for defrost and recovery used  for 
energy labelling is adjusted by a factor of 1.9 for va riable defrost systems as set out in Table  B.6. 
 
 
 
Table B.6  — Adjusted defrost energy  
 
Test Point  
 Ambient 16°C  Ambient 32°C  
Measured incremental 
defrost and recovery 
energy for MEPS ΔEdf Wh  N/A 112.3  
DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    37 Adjusted incremental 
defrost and recovery 
energy for labelling ΔEdf-a 
Wh 200.64  213.37  
 
B.5.3  Calculation of daily energy values for energy labelling  
 
Using steady -state power values, measured steady -state temperatures and defrosting characteristics, 
calculate the daily energy values and average compartment  temperatures for energy labelling, including the 
energy and temperature impacts of defrosting. The se are set out in the KS IEC 62552 -3, Equation  (2) and the 
KS IEC 62552 -3, Equation  (3) as follows:  
 
                                                                                                     B.5 
 
Note that ΔEdf-a in KS IEC 62552 -3, Equation  (2) is the adjusted value as specified in Table  B.6 and 
Clause  4.2.1 . 
 
                                                                                                               B.6 
 
Accordingly, the temperature and energy values for energy  labelling calculations for each test point are 
calculated and shown in Table  B.7 and Table  B.8. 
 
Table B.7  — Compartment temperature and da ily energy for labelling at 16° C  
 
Compartment A °C −18.6918  −16.9918  −19.6918  −18 
Compartment B °C −2.0976  −0.0976  −0.6976  0 
Compartment C °C  0.7047  3.3047  2.3047  4 
Compartment D °C  1.2259  5.3259  4.3259  4 
Compartment E °C 8.6118  11.2118  9.3118  12 
Daily energy Wh/day  535.634  487.634  526.034   
 
 
 
 
 
 
 
Table B.8  — Compartment temperature and daily energy for labelling  at 32  °C 
 
Test Point  Point 1  Point 2  Point 3  Target 
Temperature  
 
Compartment A °C −20.4507  −17.2507  −15.7507  −18 
 
38  © KEBS 2019 — All rights reserved  Compartment B °C −2.0906  −0.0906  −0.6906  0 
Compartment C °C  0.7235  3.3235  2.3235  4 
Compartment D °C  6.5423  0.8423  7.1423  4 
Compartment E °C 8.6376  11.2376  9.3376  12 
Daily energy Wh/day  1176.84  1124.04  1001.64   
 
NOTE Energy values used to calculate PAEC are in kWh/day.  
 
 
B.5.4  Interpolation of energy values for energy labelling  
 
As there are three test points at each test temperature for energy labelling, it is then possible to estimate an 
optimum energy value at the target temperature by the interpolation of at least two compartments . Review of 
the data shows that Compartment  A (freezer ) and Compartment  D (larger fresh food) are the most suitable 
compartments  for triangulation. Inspection of the data confirms that all other compartments  are at or below 
target temperature for each of the test points, so can be ignored for the purpo ses of interpolation.  
 
Two approaches to interpolation are possible. The first is manual interpolation. With this approach, a line is 
drawn from Point 2 through the target temperature (Point Q) to intersect with a line from Point 1 to Point 3 at 
Point 4. I nterpolation can be performed along the line from Point 2 to Point 4 to determine energy consumption 
at the target temperature for both compartments  (Point Q). This is illustrated in Figure  B.2 and Figure  B.3. 
Details of this approach are set out in the KS IEC 62552 -3, Clause  E.4.3.  
 
 
 
Figure B.2  — Interpolation of compartment temperatures at test temperature of 32  °C 
 
 
DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    39  
 
Figure B.3  — Interpolation of compartment temperature and energy at test temperature of 
32 °C 
 
Manual interpolation gives an energy value of 1116.56 Wh/day at the target temperature for Compartment  A 
(freezer ) and Compartment  D (larger fresh food). Table  B.9 provides the results of the calculations for 32  °C 
ambient temperature. Similar calculations  can be done for the 16  °C ambient temperature results, as set out 
in Table  B.10. 
 
 
 
 
Table B.9  — Compartment temperature and daily energy for labelling at 28°C  
 
Test Point  Compartment A °C  Compartment D °C  Daily energy Wh/day  
 
Point 1  −20.4507  6.5423  1176.84  
Point 2  −17.2507  0.8423  1124.04  
Point 3  −15.7507  7.1423  1001.64  
Point 4  −18.6576  6.7712  1109.99  
Point Q  −18.0  4.0 1116.56  
NOTE Energy values used to calculate PAEC are in kWh/day.  
 
Table B.10  — Compartment temperature and daily energy for labelling at 16°C  
 
Test Point  Compartment A °C  Compartment D °C  Daily energy Wh/day  
 
Point 1  −18.6918  1.2259  535.63  
Point 2  −16.9918  5.3259  487.63  
Point 3  −19.6918  4.3259  526.03  
 
40  © KEBS 2019 — All rights reserved  Point 4  −19.1141  2.5348  531.58  
Point Q  18.0 4.0 508.51  
 
 
An alternative approach is to use matrices as set out in the KS IEC 62552 -3, Annex  E Clause  E.4.4. The 
concept is to generate 3 simultaneous equations as follows, which can then be solved:  
 
E0 + A × TA1 + B × TB1 = E1 
E0 + A × TA2 + B × TB2 = E2 
E0 + A × TA3 + B × TB3 = E3 
 
where  
TAk  =  temperature in Compartment A for test point k (1 to 3) ;  
TBk  =  temperature in Compartment B for test point k (1 to 3) ; and   
Ek  =  energy consumption for test point k (1 to 3) . 
E0 is a constant value for the refrigerating appliance at the ambient test temperature (in theory this is the 
energy consumption when both compartments  are at 0°C, but in practice this is not normally possible to 
achieve) — variable to be solved.  
 
A is a con stant value for the refrigerating appliance at the ambient test temperature that provides an estimate 
of the influence of the temperature in compartment  A on the energy consumption — variable to be solved.  
 
B is a constant value for the refrigerating appli ance at the ambient test temperature that provides an estimate 
of the influence of the temperature in compartment  B on the energy consumption — variable to be solved.  
In These values can be organized into matrices as follows:  
[M33] × [C31] = [E31]                                                                                                       B.7 
 
longhand this is set out as follows:  
 
 
 
The solution to find the constants matrix C31 is to multiply the energy matrix by the inverse of the temperature 
matrix [M33]−1 as follows:   
 
[C31] = [E31] × [M33]−1                                                                                                                                     B.1 
 
In the example for the test temperature of 32°C, the values are as follows:  
 
[M33] × [C31] = [E31] 
 
 
 
The inverse of [ M33] can be calculated using a spreadsheet as follows:  
 
DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    41  
 
The solution to the constants matrix [ C31] can be calculated as follows:  
 
 
 
This gives values as follows:  
 
E0 = 514.125  
A = −35.887  
B = −10.884  
 
The energy consumption at Point Q is then given by:  
 
EQ = 514.125 + (−35.887)×(−18) + (−10.884)×(4) = 1116.56 Wh/day = 1.11656 kWh/day  
 
Note that interpolation using manual triangulation and matrices gives the same result. Energy values used to 
calculate PAEC  are in kWh/day so energy values in Wh/day need to be divided by 1,000.  
 
The energy slope of the interpolated compartments  is given by the parameters A and B in Wh/K. At the target 
energy consumption of 1,116.56 Wh/day, the impact of changes in the freezer compartment  temperature 
equates to −3.2  % per K while the impact of changes in the fresh food temperature equates to −1.0  % per K.  
A similar calculation can be undertaken for the data at a test temperature of 16°C. The solution to the constants 
matrix  [C31] can be calculated as follows:  
 
[C31] = [E31] × [M33]−1 
 
 
 
This gives values as follows:  
 
E0 = 325.731  
A = −11.6798  
B = −6.8645  
 
The energy consumption at Point Q is then given by:  
EQ = 325.731 + (−11.6798)×(−18) + (−6.8645)×(4) = 508.51 Wh/day = 0.50851 kWh/day  
 
B.5.5  Load processing efficiency for energy labelling  
 
The load processing efficiency has been measured at both 16  °C and 32  °C, so in accordance with Clause  3.3, 
the load processing efficiency for energy labelling is calculated as the ave rage of the measured  value at 16°C 
and 32°C.  
 
Load processing efficiency at a test temperature of 16°C: 1.638 (dimensionless, Wh/Wh)  
Load processing efficiency at a test temperature of 32°C: 1.350 (dimensionless, Wh/Wh)  
Load processing efficiency for energy labelling: 1.4940 (dimensionless, Wh/Wh)  
 
 
42  © KEBS 2019 — All rights reserved  B.5.6  Calculation of daily energy values for MEPS  
 
Using steady -state power values, measured steady -state temperatures and defrosting characteristics, it is 
necessary to calcul ate daily energy values for MEPS . It is only necessary to calculate these additional values 
at a test temperature of 32  °C. For energy consumption for MEPS , the unadjusted incremental defrost and 
recovery energy is used ΔEdf. For a variable defrost system,  the assumed defrost interval is 60  h to align with 
US requirements. Note also that for the MEPS  calculations, the compartment  temperatures are not adjusted 
to take into account temperature excursions during defrosting and recovery. This is to align with U S 
requirements. For example, the daily energy consumption for Point 1 is calculated as follows:  
 
 
The resulting values for MEPS  assessment are as set out in Table  B.11. 
 
 
Table B.11  — Compartment temperature and daily energy for MEPS at 32  °C 
 
Test Point  Point 1  Point 2  Point 3  Target Temperature  
 
Compartment A °C −20.70  −17.50  −16.00  −18 
Compartment B °C −2.10  −0.10  −0.70  0 
Compartment C °C  0.70 3.30 2.30 4 
Compartment D °C  6.50 0.80 7.10 4 
Compartment E °C 8.60 11.20  9.30 12 
Daily MEPS energy 
Wh/day 980.92  928.12  805.72   
NOTE The measured temperatures as set out in Table B.4 are used without adjustment for 
MEPS calculations.  
 
B.5.7  Interpolation of energy values for MEPS  
 
Interpolation of MEPS  energy data are the same as for energy labelling data. The results from   manual 
interpolation are given in Table  B.12. 
 
Table B.12  — Compartment temperature and daily energy for MEPS at 32  °C 
 
Test Point  Compartment A °C  Compartment D °C  Daily energy Wh /day 
 
Point 1  −20.7  6.5 980.92  
Point 2  −17.5  0.8 928.12  
Point 3  −16.0  7.1 805.72  
Point 4  −18.4358  6.7890  896.52  
Point Q  −18.0  4.0 911.23  
 
The matrix solution is given as follows:  
 
[C31] = [E31] × [M33]−1 
 
 
 
This gives values as follows:  
DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    43  
E0 = 308.802  
A = −35.887  
B = −10.884  
 
Note that the values for A and B are approximately the same for MEPS  and energy labelling at a test room 
temperature of 32°C. The energy consumption at Point Q is then given by:  
 
EQ = 308.802 + (−35.887)×(−18) + (−10.884 )×(4) = 911.235 Wh/day = 0.911235 kWh/day  
 
B.6 Calculation energy rating label values  
 
B.6.1  General  
 
The daily energy consumption values calculated previously are used to calculate the values on the energy 
rating label . 
 
B.6.2 Projected Annual Energy Consumption (PAEC)  
 
PAEC =259 ×Edaily  32C −label +106 ×Edaily16C −label  +Wheaters −AU ×8.76+[(VE×0.091 )+(Vunfrozen ×0.274 )]
Efficiency load −label 
PAEC =259 ×1.11656 +106 ×0.50851 +0+[(90×0.091 )+(290 ×0.274 )]
1.4940 
PAEC =289 .18904 +53.90206 +58.668 
PAEC =401 .759 kWh/year  
 
 
B.6.3 Comparative Energy Consumption (CEC)  
 
In accordance with Clause 3.4, the CEC on the energy rating label shall be an integer not less than the PAEC, 
so the lowest value that can be claimed is 402 kWh/year. A higher value could be claimed at the discretion o f 
the supplier.  
 
B.6.4  Base energy consumption (BEC)  
 
In accordance with Clause  3.6, the BEC is calculated in accordance with Equation  3.3. The appliance is Group  
5T, so the fixed and variable energy values are as specified in Table 5  and as shown below.  
 
Fixed label allowance Cf = 55 
 
Variable label allowance Cv = 10.0 
 
 
 
 
 
B.6.5  Star Rating Index (SRI) and Star Rating  
Star  rating  index =1+[𝑙𝑜𝑔 𝑒 (𝐶𝐸𝐶
𝐵𝐸𝐶)
𝑙𝑜𝑔 𝑒 (1−𝐸𝑅𝐹 )] 
 
Star  rating  index =1+[𝑙𝑜𝑔 𝑒 (402
546 .279)
𝑙𝑜𝑔 𝑒 (1−0.18)] 
𝑆𝑡𝑎𝑟  𝑟𝑎𝑡𝑖𝑛𝑔  𝑖𝑛𝑑𝑒𝑥 =2.54535  stars  
 
In accordance with Clause 3.8 and Table 6, the Star Rating of the appliance is 2.0 star.  
 
44  © KEBS 2019 — All rights reserved   
B.7  Assessment of MEPS compliance  
 
B.7.1  General  
 
The daily energy consumption values calculated previously are used to assess compliance with MEPS  
requirements.  
 
B.7.2  Projected MEPS Energy Consumption (PMEC)  
 
The PMEC  is calculated in accordance with Clause  4.6 and Equation  4.2 as set out below.  
 
 
 
 
 
 
 
B.7.3  Projected MEPS cut -off level  
 
MEPS  cut-off level is specified in Clause 4.7.2   Equation 4.3.  
 
MEPS  cut-off level = [ Kf + (Kv × Vadj tot)] + Awi + Abi (kWh/year)  
 
The appliance is Group  5T so Kf from Table 8  is 256.9 while Kv is 0.3133. As the appliance is not built in, nor 
does it have a through the door icemaker, both Awi + Abi are zero.  
 
MEPS  cut-off level = 256.9  + (0.3133  × 429.64)  + 0 + 0 kWh/year  
 
MEPS  cut-off level = 391.507 kWh/year  
 
The appliance PMEC  is 7.4  % lower than the MEPS  cut-off level so it complies with the MEPS  requirements.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    45  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Annex  C 
(informative)  
 
Determination of the maximum CEC value at which a model would qualify for a 
desired star rating  
C.1 General  
 
This Annex  presents two methods for determining the maximum value of the CEC  (CEC max) at which a 
refrigerating appliance model of a given Group  and total adjusted volume  will qualify for a desired star rating . 
 
The first method entails the use of an equation and is exact. The second uses a conversion factor that is 
rounded so the resulting value would be an approximation.  
 
Equations provided in this Annex  are for information only and do not take precedence over the equations 
provided in Section 3  of this standard.  
 
C.2 Determination of target CEC max by formula  
 
C.2.1  Method  
 
The maximum CEC  to achieve a desired star rating  of an appliance model of a given Group  and given total 
adjusted volume  may be obtained from the following formula:  
 
CEC max = BEC × (1 −ERF)(Desired SRI −1)                                                                      C.1 
CEC max = BEC × 0.82 (Desired SRI −1)                                                                               C.2 
 
where  
BE
C  =  base energy consumption   
46  © KEBS 2019 — All rights reserved  ER
F energy reduction factor  
C.2.2  Example  
 
The product is a Group  5T refrigerating appliance with a freezer volume  of 90  l and a fresh food volume  of 
300 l, with a total volume  of 390  l. 
 
The desired star rating  is 3. 
 
The normalized volume  is calculated from Equation  3.2 using the volume  normalization factors in Table 3  and 
the Group configuration  adjustor in Table 4  as follows:  
 
Vnorm  = 
                
  
 
Therefore —  
Vnorm  = 365.75 l 
 
From Equation  3.3 the base energy consumption  is calculated as  
 
BEC = 55 + (10.0  × (365.75)0.67) 
 
From Equation  3.4, the energy reduction factor (ERF) is 0.18.  
 
From Equation  C.1, the CEC max is calculated as — 
 
CEC max = 576.595  × (1 −0.18)(3-1) 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    47  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Annex  D 
(informative)  
 
Energy rating label dimensions  
 
Most of the dimensional information required to create a valid base label is given in table below   
 
Item Description & measurement  
 
Overall Length  9 cm 
Overall Height  15 cm 
 Inner Semicircle – Radius 3.5 cm, Stroke Weight -40 pt  
Sector Divider: Sector line divider for each of the five 
sectors of the semicircle - 5 pt 
Star: The apex for each star point lies on the corner of a 
pentagon. Angles are 108o for the pentagon and 36o for 
each star apex. The pentagon side for the smaller star is 
8 mm and side for the larger star 9mm (middle)  
 Location: Center  
Distance between Semicircle and object: 10 pt  
Length:  8.5 cm. Stroke Weight -40 pt  
Font Type: Regular  
Font Size: 20 pt  
 
48  © KEBS 2019 — All rights reserved   Location: Center  
Distance between Object and previous from top: 15 pt  
Length:  8.5 cm. Overall Height 1.5 cm  
Font Type: Regular  
Font Size: 25 pt  
 
 Location: Center  
Distance between text and object: 15 pt  
Font Type: Regular  
REFRIGERATOR/Energy Consumption: Font Size: 25 pt  
300: 25  
Circle Radius: Inner 1.2 cm Outer: 1.5 cm  
Length of tampering flag: (4 cm,  
Other fonts  16 pt, evenly distributed over remaining space  
Colours  
 The label shall be printed in the following colours  on a 
white background  
Red: Pantone Warm Red  
Green: #006600  
Black: Pant one Black  
 
 
 
 
 
 
 
 
 
 
Annex  E 
(informative)  
 
Items to be included in registration test reports  
 
E.1 Introduction  
 
The following Test Report Items (Clause  F.2) should  be included in test reports that are submitted for 
household refrigerating appliances to be registered.  
 
All parameters are to be measured in accordance with the test standard . 
 
E.2 Test report items  
 
E.2.1  Testing laboratory  
 
Laboratory address where testing was conducted.  
Contact details.  
Test officer.  
 Date(s) of specific tests.  
 Relevant accreditation(s) (where applicable) . 
Authorizing person.  
 
E.2.2  Client  
 
a) Supplier name.  
DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    49 b) Supplier address.  
c) Contact name.  
d) Contact phone number.  
 
E.2.3  Test standards  
 
a) Test Standards and editions used.  
b) Document any permitted variations.  
c) Document any non -conformance or deviations.  
d) Relevant regulation (e.g. GEMS Regulation).  
 
E.2.4  Refrigerating appliance  
 
a) Test item description.  
b) Brand (Trade Mark).  
c) Manufacturer.  
d) Model.  
e) Serial number(s).  
f) Rated voltage and frequency.  
g) Climate class.  
h) Ratings and marking plates, including photographs.  
i) Refrigerant.  
j) Product characteristics:  
1) Type of refrigerating appliance  designation  (Refrigerator /Refrigerator -Freezer /Freezer /Cooled 
Appliance ). 
2) Frost -free or not.  
3) Defrost controller type (variable, run -time, fixed time, other).  
4) Condenser type (grill (stack)/skin (smooth wall)/fan forced (including direction of the 
exhaust)/other, as applicable).  
5) Condenser location (back/side/underneath , as applicable).  
6) Features (chill compartment /automatic ice maker/ through the door ice and/or water dispenser/ 
other).  
7) Compressor details: single speed, variable speed, multiple compressors.  
8) For variable defrost controls, min and max defrost interval (whe re known).  
9) For ambient controlled anti -condensation heater, suppliers should  provide an operation map as 
per the KS IEC 62552 -3, Annex  F. 
10) For user controlled anti -condensation heaters, describe the switch and any associated controls.  
11) Does the appliance hav e a compact footprint? (smaller than 0.36 m2) 
12) Is the appliance built-in? 
13) Rated linear dimensions [mm] (width  × depth  × height):  
i. Overall dimensions.  
ii. Space required in use.  
iii. Overall space required in use.  
 
F.2.5  List of compartments  
 
List of all compartments  and sub-compartments , including:  
 
a) Compartment  type as specified in Clause  3.3 (in the case of a variable temperature compartment , also 
specify the warmest and coldest compartment  type that can be selected and the compartment  type 
selected for the primary configuration , compartment  type with the highest energy).  
b) volume  determined to the KS IEC 62552 -3, Annex  H. 
c) Defrost type (manual defrost/cyclic defrost/frost -free).  
d) Number of external doors.  
e) Access (top/front/drawer/internal).  
f) Temperature control description (where applicable).  
g) Total rated volume  of all compartments  in litres.  
h) Normalized volume  for the appliance (energy labelling) in litres.  
i) Adjusted volume  for the appliance ( MEPS ) in litres.   
50  © KEBS 2019 — All rights reserved   
E.2.6  Summary of testing  
 
E.2.6.1  General  
 
Lists a summ ary of the test results.  
 
E.2.6.2  Storage test results  
 
For each ambient temperature tested, indicate whether the product complies.  
 
Indicate the relevant temperature control settings used to achieve compliance.  
 
See Clause  4.4. 
 
E.2.6.3  Pull down test  
 
Where applicable, indicate the time for each compartment  to reach the specified pull down temperatures and 
the ambient temperature for the test.  
 
Indicate the relevant temperature control settings us ed to achieve compliance ( See Clause  5.3). 
 
E.2.6.4  Temperature excursion during defrost  
 
Where applicable, indicate maximum temperature that occurs for each sensor in each frozen compartment  
during defrost and the time above 0°C (if applicable) and for sensors that are warmer than 0°C, the tim e the  
sensor remains above 0 °C ( See Clause  4.8). 
 
E.2.6.5  Energy consumption  
 
IEC values at 16  °C and 32  °C as applicable:  
 
a) Measured ambient temperature [°C].  
b) Steady -state power at each temperature control setting selected.  
c) Method of establishing stability [SS1 or SS2], total test time.  
d) Measured representative incremental energy for defrost and recovery ΔEdf and the number of valid 
defrost events used to estimate this value.  
e) Scaled representative incremental energy for defrost and recovery ΔEdf-a used to determine energy 
consumption for energy labelling.  
f) The representative defrost and recovery temperature change in each compartment ΔThdf in 
accordance with the KS IEC 62552 -3, Annex  C used for energy labelling.  
g) Average defrost heater energy Edf-heater for these valid defrost events.  
h) Average defrost adder ΔEdf-adder  (ΔEdf – Edf-heater ). 
i) Defrost interval  used to determine each daily energy consumption value, where applicable and how 
this was determined (run -time for run -time controllers, calculated de frost interval in accordance with 
the KS IEC 62552 -3, Annex  D for variable controllers), including declared values for td-max and td-
min at 32°C.  
j) Daily energy consumption Edaily [Wh/day] for each control setting used for energy labelling.  
k) Daily energy cons umption Edaily [Wh/day] for each control setting used for MEPS . 
l) Where interpolation has been used to determine the optimum daily energy consumption, indicate 
the method used.  
m) Daily energy consumption Edaily [Wh/day] declared (optimum) for energy labelling.  
n) Daily energy consumption Edaily [Wh/day] declared (optimum) for MEPS . 
o) Load processing energy input test Einput -test [Wh].  
p) Additional energy for load processing ΔEadditional -test [Wh].  
q) Indicate whether any defrosts occurred during the load processing test.  
r) Load processing Efficiency load, ambient  [W/W].  
s) Confirm that all KS IEC validity criteria have been met for all performance and energy tests  
t) Regional values can be reported where applicable:  
1) Days at each ambient temperature.  
2) Load processing factors.  DKS 2464 -2:2019  
 
© KEBS 2019 — All rights  reserved    51 3) Load processing energy.  
4) Value for Efficiency  load-label  used for labelling calculations and how this is determined.  
5) Where load processing efficiency Efficiency  load-label  is not based on a measured value, 
report the brand and model of compressor, the cooling ca pacity, power input and COP at the 
relevant ASHRAE rated conditions. If a variable speed compressor, report the frequency for 
these rated conditions.  
6) Additional power associated with ambient controlled anti -condensation heaters (noting that 
this requires u se of a regional humidity -temperature distribution) including climate profile 
adopted for calculations.  
7) Total energy consumption Etotal (PAEC av). 
8) Base energy consumption  (BEC). 
9) Energy reduction factor used.  
10) Star rating index . 
11) Star rating . 
 
E.2.6.6  Dimensio ns and volume  
 
Measured linear dimensions [mm] (width  × depth  × height):  
 
i. Overall dimensions.  
ii. Space required in use.  
iii. Overall space required in use.  
iv. List of all compartments  and sub-compartments , including:  
a) Compartment  type.  
b)    Measured volume  in litres.  
c)   Total measured volume  (sum of all compartments ).