IEC 63169:2020/AMD1:2024

IEC 63169 ®
Edition 1.0 2024-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
AMENDMENT 1
AMENDEMENT 1
Electrical household and similar cooling and freezing appliances – Food
preservation
Appareils électrodomestiques et appareils de refroidissement et de réfrigération
analogues – Conservation des aliments

IEC 63169:2020-06/AMD1:2024-12(en-fr)

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IEC 63169 ®
Edition 1.0 2024-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
AMENDMENT 1
AMENDEMENT 1
Electrical household and similar cooling and freezing appliances – Food

preservation
Appareils électrodomestiques et appareils de refroidissement et de réfrigération

analogues – Conservation des aliments

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.040.30, 67.040 ISBN 978-2-8327-0062-4

– 2 – IEC 63169:2020/AMD1:2024
© IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL HOUSEHOLD AND SIMILAR COOLING
AND FREEZING APPLIANCES – FOOD PRESERVATION –

AMENDMENT 1
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
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Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
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the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to IEC 63169:2020 has been prepared by IEC technical subcommittee 59M:
Performance of electrical household and similar cooling and freezing appliances, of IEC
technical committee 59: Performance of household and similar electrical appliances.
The text of this Amendment is based on the following documents:
Draft Report on voting
59M/174/FDIS 59M/176/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Amendment is English.

© IEC 2024
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications/.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of this publication be adopted for implementation nationally
not earlier than 12 months or later than 36 months from the date of publication.
___________
1 Scope
Replace the existing Scope with the following:
This document deals with two food preservation tests. A weight loss test and a condensation
test.
The weight loss test simulates the weight loss of leafy produce, given certain conditions of
temperature, humidity and air movement in one or more test zones. The aim of the test is to
measure the weight loss rate by measuring the weight of a test tray prior to the test and again
after a given duration.
The condensation test simulates condensation produced by real food on surfaces of the test
zone, given certain conditions of temperature, humidity and air movement in one or more test
zones. This test assesses the condensation in refrigerator test zones by using test trays
filled with non-woven fabric to generate condensation, and then evaluates the condensation
extent and distribution.
The weight loss test and condensation test apply to test zones that have an average
operating temperature greater than 0 °C.
Both the weight loss test and condensation test are performed in series and not in parallel on
the same refrigerator.
Both the weight loss test and the condensation test can only be applied to test zones having
all dimensions exceeding 200 mm × 150 mm × 100 mm (L × W × H).

– 4 – IEC 63169:2020/AMD1:2024
© IEC 2024
2 Normative references
Replace IEC 62552-1:2015, Household refrigerating appliances – Characteristics and test
methods – Part 1: General requirements
with the following:
IEC 62552-1:2015, Household refrigerating appliances – Characteristics and test methods –
Part 1: General requirements
IEC 62552-1:2015/AMD1:2020
3 Terms and definitions
3.1
test zone
Replace the existing definition with the following:
space inside the refrigeration appliance subject to the weight loss test and the condensation
test
Add the following Notes to entry:
Note 3 to entry: These tests cannot be performed in a compartment that is a non-enclosed space.
Note 4 to entry: The height of the test zone is the lid. If there is no lid, the height is the next horizontal surface
immediately above the test zone.
Add, after 3.5, the following new definitions:
3.6
removable accessory
accessory that is movable, removable, or adjustable by the customer if instructed to do so in
the user instructions to enable a different refrigerator function or configuration to be used
Note 1 to entry: Cleaning is not regarded as a different function so instructions to remove parts for cleaning-only,
do not meet this requirement.
Note 2 to entry: Tools can be required for removal of such parts if so instructed.
3.7
condensation
droplets of water that appear on the cold surfaces of a test zone
3.8
total condensation
sum of all the condensation calculated in 6.5.4
3.9
average condensation
total condensation divided by the number of grid rectangles calculated in 6.2

© IEC 2024
4 Test preparation
Table 1 – Test equipment
Replace the existing Table 1 with the following:
Table 1 – Test equipment
Test tray For 3D printing files (stp and stl files) for both the 18-sheet test tray for the weight loss test and
the 6-sheet test tray for the condensation test – see normative Annex B. The weight loss test
uses a single large tray The condensation test uses a number of small trays as calculated in 6.2
The test tray shall be non-absorbent and watertight. This can be achieved by coating the test tray
after the printing process.
Test sheet Test sheets shall be cut from a filter material (typically material used for radiator evaporators).
The size of a sheet is 75 mm × 125 mm.
A material is specified in informative Annex A. For a method of proving equivalence of alternate
materials, refer to informative Annex D.

Add, after 4.3, the following new subclause 4.4:
4.4 Test tray water
The temperature of the water in the test tray(s) for the weight loss test and condensation
test shall be within ± 2 K of the temperature of the test zone to be evaluated. Each test tray
shall be preconditioned for 24 h to ensure it is within ± 2 K of the temperature of the test zone
to be evaluated. Preconditioning can be in the test zone or in another refrigerator.
5 Weight loss test
5.1 Procedure
Replace the two paragraphs immediately after Figure 1 with the following:
If the test tray cannot be placed due to the presence of a removeable accessory, the
accessory can be moved/removed/adjusted in accordance with the manufacturer’s user
instructions.
If the test tray still cannot be placed, then a valid weight loss test cannot be performed.
Add, after 5.2, the following new Clause 6:
6 Condensation test
6.1 General
The condensation test consists of evaluating the condensation in a test zone. This is done
by dividing all 6 test zone surfaces into rectangles. Multiple small test trays are loaded with
water and non-woven fabric. The compartment/refrigerator door is closed. After 72 h, evaluation
is made by assessing the condensation in each rectangle and summing them accordingly.
Clarification of some test zone surfaces is contained in informative Annex H.

– 6 – IEC 63169:2020/AMD1:2024
© IEC 2024
6.2 Preparation of test zone
Remove any condensation from the test zone prior to placing the test tray by wiping with a
tissue or paper towel.
The test material consists of a number of small test trays with 6 sheets of non-woven fabric
material as specified in Table A.1.
The number of small test trays is the volume of the test zone (in litres)/3 rounded to the nearest
integer value.
For example, a 25,3 l crisper should load 25,3/3 = 8,43 to be rounded to 8 small test trays, and
a 25,6 l crisper should load 25,6/3 = 8,53 to be rounded to 9 small test trays.
Each surface of the test zone is divided into a grid of rectangles according to the following
method.
• determine each length or height of the test zone in mm and divide by 50;
• round the length or height up to the next whole number and this gives the number of
rectangles for that dimension.
See informative Annex G for examples. This means that there will likely be a different number
of rectangles horizontally and vertically. The maximum dimension of a rectangle will be 50 mm.
Part rectangles (for example a sloping side) are counted as a complete rectangle.
NOTE For practical purposes, examples of usable rectangles could be a grid marked on the test zone before
testing, or a transparency held against the surface during evaluation.
For the condensation test multiple test zones may be tested simultaneously. Any test zones
in the refrigerator that are not being tested do not need to have test trays loaded.
6.3 Test tray placement
To allow a trial test tray placement, the test trays are left empty and loaded into the test zone.
The test trays are clipped together using the clips of normative Annex B. If all the test trays
can be placed on the base of the test zone then they are centralised both left to right and front
to back.
If the shape of the test zone prohibits centralising the test trays as above, the test trays are
biased to the front and/or left to try and place them on the base.
If necessary, the test trays can be disconnected from the clips to allow some test trays to
move forward or backward relative to one another (or left or right) but the test trays spacing
shall be at least 5 mm side to side. These 5 mm do not include any spacers which are formed
as part of the test tray.
The test trays can be at angles to each other (preferably a right angle).
If necessary, an upper layer of test trays can be stacked on top of the lower layer. As many
test trays as possible shall be in the lower layer before any additional test trays are stacked.
At all times there shall be at least 10 mm vertical clearance between the top of any test sheet
and the underside of the test zone lid.

© IEC 2024
If, because of the size and/or shape of the test zone, the required number of test trays cannot
be loaded, then the test trays spacing can be reduced. For the test to remain valid, the following
minimums shall be observed. There shall be at least
• 1 mm spacing between test trays;
• 3 mm spacing between the test trays and test zone walls.
Any upper layer test trays should be centralised over the lower layer biasing to the front and
left if necessary.
If the base of the test zone is angled, then the test trays can sit on the angled base if the
inclination is less than 15 mm high for each 100 mm length of the base. Inclinations greater
than this shall have the test trays supported horizontally by a packer. In all cases, the 10 mm
vertical clearance of any test sheet and the test zone lid shall be observed.
A record (photos or drawings, etc.) of the test trays layout should be in the test report described
in informative Annex C.
Before starting the test, the quality of the non-woven materials can be inspected as detailed in
informative Annex A.
If test trays cannot be placed due to the presence of an accessory, the accessory can be
moved/removed/adjusted in accordance with the manufacturer’s test zone description. If no
specific instructions are provided, in the case of a:
• removeable accessory at the required position, the accessory shall be moved, removed or
adjusted if possible;
• non-removable accessory, test trays may be stacked in 2 layers.
If test trays still cannot be placed, then a valid condensation test cannot be performed.
Test trays can be filled with dry or wet test sheets. If dry test sheets are used then the test
tray should be charged with 200 g ± 50 g of distilled water. Less water can be used if wet test
sheets are used.
NOTE Historical weight data of the test tray and test sheets can expedite the addition of an appropriate quantity
of water.
If the test sheets cannot face perpendicular to the refrigerator front door, the test trays shall
be placed with test sheets facing parallel to the door.
See informative Annex F for examples of alternative test tray layouts.
6.4 Test procedure
1) Prepare the test zone as specified in 6.2.
2) Load and place the test trays as specified in 6.3.
3) Close the test zone and/or refrigerator door.
4) Record the start time.
5) Leave the refrigerator door closed during the test.
6) During the test, the water shall not freeze.
7) After 72 h, begin the condensation evaluation.

– 8 – IEC 63169:2020/AMD1:2024
© IEC 2024
6.5 Condensation evaluation
6.5.1 General
Condensation evaluation is made by visual assessment of the condensation on each surface
of the test zone. The degree of condensation depends on:
• the position of condensation on the surface of test zone;
• the severity of condensation.
NOTE Guidance on how to carry out the evaluation is given in informative Annex H.
6.5.2 Position and severity of condensation
6.5.2.1 Position of condensation on the surface of test zone
Each rectangle as specified in 6.2 is used when assessing condensation on each test zone
surface.
6.5.2.2 Severity of condensation
Each rectangle is assessed for severity with only the maximum severity being recorded for the
final calculation. Then assess the number of rectangles for each level of condensation. Any
condensation in a rectangle means that rectangle is counted in the final calculation, regardless
of the area of condensation within the rectangle.
Each rectangle is allocated a condensation severity score (CSS) as specified in Table 2.
Table 2 – Condensation severity score
Condensation type CSS
Mist/No condensation 0
Drops with any dimension < 10 mm 1
Running water 1
Pooling with any dimension > 10 mm 3
NOTE Pooling is only on the test zone base and is the result of running water

6.5.3 Condensation
The condensation on each rectangle is assessed according to 6.5.2.2. Condensation (C) on
each surface is the sum of all of the rectangles on that surface with any condensation,
multiplied by each rectangle’s condensation severity score. Each surface of the test zone is
calculated separately and then added for the total.
6.5.4 Total condensation (TC)
TC = C + C + C + C + C + C
Front Back Top Bottom LH Side RH Side
6.5.5 Average condensation (C )
Avg
C = TC/(Total number of rectangles on all surfaces)
Avg
© IEC 2024
Annex B – Test tray
Replace the existing Annex B with the following:
Annex B
(normative)
Weight loss and condensation test trays
This annex shows the weight loss and condensation test trays. The 18-sheet weight loss test
tray is shown in Figure B.1. The 6-sheet weight loss test tray is shown in Figure B.2.

Nominal dimensions (mm): 196(L) × 141(W) × 90(H)
Figure B.1 – 18-sheet weight loss test tray

Nominal dimensions (mm): 151(L) × 75(W) × 81(H)
Figure B.2 – 6-sheet condensation test tray

– 10 – IEC 63169:2020/AMD1:2024
© IEC 2024
3D printing files (stp and stl files) for the 18-sheet test tray and the 6-sheet test tray can be
accessed via SC 59M supporting documents at the following link:
www.iec.ch/sc59m/supportingdocuments
The test tray clip in Figure B.3 may be used for securing and spacing adjacent test trays apart
for the condensation test.
Figure B.3 – Test tray clip
© IEC 2024
Annex C – Outline of test report for weight loss test
Replace the existing Annex C with the following:
Annex C
(informative)
Test report
Are both weight loss test and condensation tests covered in this report? YES/NO
Test report number
Date
Laboratory details (name & location)
Refrigerator description
Brand
Model number
Test zone descriptions and conditions
(All test zones to be tested are to be described in detail).
To include:
• voltage and frequency,
• physical description of test zone including sketches/photos etc.,
• position in refrigerator,
• definition of each test zone as per IEC 62552-1,
• identification of which test zones are tested in this report,
• features of tested test zone,
• setting of test zone if tested,
• test tray placement according to 5.1,
• settings of untested test zones,
• test tray position in untested zones,
• volume of each test zone,
• average temperature and humidity of test room.
Test conditions
• average compartment temperature,
• test zone temperature and humidity (if measured).
Test results
As detailed in Table C.1, Table C.2 and Table C.3

– 12 – IEC 63169:2020/AMD1:2024
© IEC 2024
Table C.1 – Test settings
Refrigerator model  Compartment
Temperature Compartment Test zone Test zone
a
Compartment type Compartment ID
control setting temperature setting temperature

a
Compartment types are as specified IEC 62552-1:2015 and IEC 62552-1:2015/AMD1:2020.

a
Table C.2 – Test results – Weight loss – Weight loss rate W
a a a a a
t [h] M (g) t (h) M (g) W (g/24 h)
1 1 2 2
a
t , M , t , M and W are in accordance with 5.1 and 5.2
1 1 2 2
Table C.3 – Test results – Condensation – TC and C
AVG
Total
Top Bottom Left Right Front Back
Surface
Number of rectangles
Condensation score
Total condensation (TC) =
Average condensation (C ) =
AVG
© IEC 2024
Add, after Annex E, the following new annexes:
Annex F
(informative)
Condensation test tray placement guidelines
This annex contains general guidance on the condensation test tray placement. It shows
examples of alternative test tray layouts.
In Figure F.1 the sheet layout is shown. The preferred position is with all test sheets facing
perpendicularly to the refrigerator door.

a) Sheet layout drawing
– 14 – IEC 63169:2020/AMD1:2024
© IEC 2024
b) Sheet layout pictures
Figure F.1 – Sheet layout
Alternate sheet layout facing parallel to the door, if the sheets cannot face perpendicularly to
the refrigerator door, is shown in Figure F.2.
Back
Front
a) Alternate sheet layout drawing

© IEC 2024
b) Alternate sheet layout picture
Figure F.2 – Alternate sheet layout

– 16 – IEC 63169:2020/AMD1:2024
© IEC 2024
Annex G
(informative)
Condensation rectangle dimension examples
This annex contains examples of the condensation rectangle dimensions and of the calculations
of the number of rectangles from the condensation rectangle dimensions. Examples of
condensation rectangle dimensions are shown in Figure G.1.

Figure G.1 – Examples of condensation rectangle dimensions

© IEC 2024
Annex H
(informative)
Condensation evaluation guidance
This annex contains general guidance based on experience to improve the repeatability of the
condensation evaluation assessment.
– Removal of bins/lids. Sometimes it is necessary to remove the crisper bin to assist
evaluation.
– It is important to evaluate pooling, large drops and running water as much as possible prior
to moving or removing the bin.
– Carry out the evaluation as far as possible before any sudden or tilting movement.
– If multiple assessors are used it is important that all assessors carry out the evaluation
independently and as far as possible before any components are moved.
– Textured/coloured test zones. The use of a light source or torch can aid assessment with
textured/coloured test zones.
– Carry out the assessment immediately, as there can be a rapid change in condensation
when a door is opened.
– Take images of condensation but do not grade condensation from an image. If scoring a
particular plane is difficult, get a second opinion or divide plane into smaller areas (then
average to obtain 2 scores).
– Ligh
...