SIST EN 60335-2-89:2011

SLOVENSKI STANDARD
01-marec-2011
1DGRPHãþD
SIST EN 60335-2-89:2003
SIST EN 60335-2-89:2003/A1:2005
SIST EN 60335-2-89:2003/A11:2004
SIST EN 60335-2-89:2003/A2:2007
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Household and similar electrical appliances - Safety -- Part 2-89: Particular requirements
for commercial refrigerating appliances with an incorporated or remote refrigerant
condensing unit or compressor
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-89:
Besondere Anforderungen für gewerbliche Kühl-/Gefriergeräte mit eingebautem der
getrenntem Verflüssigersatz oder Motorverdichter
Appareils électrodomestiques et analogues - Sécurité -- Partie 2-89: Règles particulières
pour les appareils de réfrigération à usage commercial avec une unité de condensation
du fluide frigorigène ou un compresseur incorporés ou à distance
Ta slovenski standard je istoveten z: EN 60335-2-89:2010
ICS:
97.130.20 Hladilne naprave za trgovine Commercial refrigerating
appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60335-2-89
NORME EUROPÉENNE
March 2010
EUROPÄISCHE NORM
ICS 97.130.20 Supersedes EN 60335-2-89:2002 + A1:2005 + A2:2007 + A11:2004

English version
Household and similar electrical appliances -
Safety -
Part 2-89: Particular requirements for commercial
refrigerating appliances with an incorporated or remote
refrigerant condensing unit or compressor
(IEC 60335-2-89:2010)
Appareils électrodomestiques  Sicherheit elektrischer Geräte
et analogues - für den Hausgebrauch und ähnliche
Sécurité - Zwecke -
Partie 2-89: Règles particulières Teil 2-89: Besondere Anforderungen
pour les appareils de réfrigération für gewerbliche Kühl-/Gefriergeräte
à usage commercial avec une unité mit eingebautem oder getrenntem
de condensation du fluide frigorigène Verflüssigersatz oder Motorverdichter
ou un compresseur incorporés (IEC 60335-2-89:2010)
ou à distance
(CEI 60335-2-89:2010)
This European Standard was approved by CENELEC on 2010-03-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60335-2-89:2010 E
Foreword
The text of document 61C/460/FDIS, future edition 2 of IEC 60335-2-89, prepared by SC 61X of the
IEC Technical Committee 61, Safety of household and similar electrical appliances, was submitted to the
IEC-CENELEC parallel vote and was approved by CENELEC as EN 60335-2-89 on 2010-03-01.
This European Standard supersedes EN 60335-2-89:2002, EN 60335-2-89:2002/A1:2005,
EN 60335-2-89:2002/A2:2007 and EN 60335-2-89:2002/A11:2004.
The principal changes in this edition as compared with EN 60335-2-89:2002 are as follows (minor
changes are not listed):
− aligns the text with EN 60335-1, and its Amendments 1, 2, 11, 12 and 13;
− introduces requirements for appliances using transcritical refrigerant systems (3.107, 3.108, 3.109,
3.110, 3.111, 7.1, 7.6, 7.12.1, 22.103, 24.1.4, 24.102);
− introduces an enhanced flexing test (23.3).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2010-12-01
- date on which national standards
conflicting with the EN have to be withdrawn (dow) 2013-03-01
This Part 2 has to be used in conjunction with EN 60335-1, Household and similar electrical appliances –
Safety – Part 1: General requirements. It was established on the basis of the 2002 edition of that
standard. Amendments and revisions of Part 1 have also to be taken into account and the dates when
such changes become applicable will be stated in the relevant amendment or revision of Part 1.
This Part 2 supplements or modifies the corresponding clauses of EN 60335-1, so as to convert it into the
European Standard: Safety requirements for electric appliances - Safety - Part 2-89: Particular
requirements for commercial refrigerating appliances with an incorporated or remote refrigerant
condensing unit or compressor
When a particular subclause of Part 1 is not mentioned in this Part 2, that subclause applies as far as is
reasonable. When this standard states "addition", "modification" or "replacement", the relevant text of
Part 1 is to be adapted accordingly.
NOTE 1 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including those in a
replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.;
– subclauses, notes and annexes that are additional to those in the IEC standard are prefixed with the letter Z.
NOTE 2 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the associated noun
are also in bold.
- 3 - EN 60335-2-89:2010
There are no special national conditions causing a deviation from this European Standard, other than
those listed in Annex ZA to EN 60335-1.
There are no national deviations from this European Standard, other than those listed in Annex ZB to
EN 60335-1.
p NOTE  In this document, p is used in the margin to indicate instructions for preparing the printed version.
_____________
Introduction
p Add:
An investigation by CENELEC TC 61 has shown that all risks from products within the scope of this
standard are fully covered by the Low Voltage Directive, 2006/95/EC. For products having mechanical
moving parts, a risk assessment in accordance with the Machinery Directive, 2006/42/EC, has shown that
the risks are mainly of electrical origin and consequently this directive is not applicable. However, the
relevant essential safety requirements of the Machinery Directive are covered by this standard together
with the principal objectives of the Low Voltage Directive.
____________
Endorsement notice
The text of the International Standard IEC 60335-2-89:2010 was approved by CENELEC as a European
Standard without any modification.
____________
Bibliography
p Add the following notes to the standards mentioned:
IEC 60079 series
NOTE Harmonized in EN 60079 series (partially modified).
IEC 60335-2-24
NOTE  Harmonized as EN 60335-2-24.
IEC 60335-2-75
NOTE  Harmonized as EN 60335-2-75.
ISO 13732-1
NOTE  Harmonized as EN ISO 13732-1.
ISO 23953-2
NOTE  Harmonized as EN ISO 23953-2.
____________
- 5 - EN 60335-2-89:2010
p Add:
Annex ZC
(normative)
Normative references to international publications
with their corresponding European publications
Addition:
Publication Year Title EN/HD Year

1)
IEC 60079-4 - Electrical apparatus for explosive gas - -
atmospheres -
Part 4: Method of test for ignition temperature

2)
IEC 60079-4A - Electrical apparatus for explosive gas - -
atmospheres -
Part 4: Method of test for ignition temperature
- First supplement to IEC 60079-4:1966

IEC 60079-15 2005 Electrical apparatus for explosive gas EN 60079-15 2005
atmospheres -
Part 15: Construction, test and marking of
type of protection "n" electrical apparatus

IEC/TR 60079-20 - Electrical apparatus for explosive gas - -
atmospheres -
Part 20: Data for flammable gases and
vapours, relating to the use of electrical
apparatus
IEC 60335-2-5 - Household and similar electrical appliances - EN 60335-2-5 2003
Safety -  2009
Part 2-5: Particular requirements for
dishwashers
IEC 60335-2-34 2002 Household and similar electrical appliances - EN 60335-2-34 2002
+ A1 2004 Safety - + A1 2005
+ A2 2008 Part 2-34: Particular requirements for motor- + A2 2009
compressors + A11 2004
ISO 817 - Organic refrigerants - Number designation - -

ISO 3864-1 - Graphical symbols - Safety colours and safety - -
signs -
Part 1: Design principles for safety signs in
workplaces and public areas
ISO 4126-2 2003 Safety devices for protection against - -
excessive pressure -
Part 2: Bursting disc safety devices

ISO 5149 - Mechanical refrigerating systems used for - -
cooling and heating - Safety requirements

____________
1)
IEC 60079-4 is superseded by IEC 60079-20-1:2010.
2)
IEC 60079-4A is superseded by IEC 60079-20-1:2010.

IEC 60335-2-89 ®
Edition 2.0 2010-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 2-89: Particular requirements for commercial refrigerating appliances
with an incorporated or remote refrigerant unit or compressor

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-89: Règles particulières pour les appareils de réfrigération à usage
commercial avec une unité de fluide frigorigène ou un compresseur incorporés
ou à distance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
X
CODE PRIX
ICS 97.130.20 ISBN 2-8318-6292-2
– 2 – 60335-2-89 © IEC:2010
CONTENTS
FOREWORD.4
INTRODUCTION.7
1 Scope.8
2 Normative references .8
3 Definitions .9
4 General requirement.11
5 General conditions for the tests .11
6 Classification.12
7 Marking and instructions.12
8 Protection against access to live parts.15
9 Starting of motor-operated appliances .16
10 Power input and current .16
11 Heating .16
12 Void.18
13 Leakage current and electric strength at operating temperature.18
14 Transient overvoltages .18
15 Moisture resistance .18
16 Leakage current and electric strength.19
17 Overload protection of transformers and associated circuits .20
18 Endurance.20
19 Abnormal operation .20
20 Stability and mechanical hazards .22
21 Mechanical strength .22
22 Construction .22
23 Internal wiring.31
24 Components .31
25 Supply connection and external flexible cords .33
26 Terminals for external conductors.33
27 Provision for earthing .33
28 Screws and connections .33
29 Clearances, creepage distances and solid insulation.34
30 Resistance to heat and fire.34
31 Resistance to rusting.34
32 Radiation, toxicity and similar hazards.34
Annexes .37
Annex C (normative) Ageing test on motors .37
Annex D (normative) Thermal motor protectors.37
Annex P (informative) Guidance for the application of this standard to appliances
used in warm damp equable climates.37
Annex AA (normative) Locked-rotor test of fan motors .38
Annex BB (normative) Non-sparking “n” electrical apparatus.40
Bibliography.42

60335-2-89 © IEC:2010 – 3 –
Figure 101 – Apparatus for spillage test.35
Figure 102 – Scratching tool tip details .36
Figure AA.1 – Supply circuit for locked-rotor test of a single-phase fan motor .39

Table 101 – Maximum temperatures for motor-compressors .18
Table 102 – Refrigerant flammability parameters .30

– 4 – 60335-2-89 © IEC:2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-89: Particular requirements for commercial refrigerating appliances
with an incorporated or remote refrigerant unit or compressor

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 with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for 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
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This part of International Standard IEC 60335 has been prepared by subcommittee 61C:
Household appliances for refrigeration, of IEC technical committee 61: Safety of household
and similar electrical appliances.
This second edition cancels and replaces the first edition published in 2002 including its
Amendment 1 (2005) and amendment 2 (2007). It constitutes a technical revision.
The principal changes in this edition as compared with the first edition of IEC 60335-2-89 are
as follows (minor changes are not listed):
– aligns the text with IEC 60335-1, and its Amendments 1 and 2;
– introduces requirements for appliances using transcritical refrigerant systems (3.107,
3.108, 3.109, 3.110, 3.111, 7.1, 7.6, 7.12.1, 22.103, 24.1.4, 24.102)
– introduces an enhanced flexing test (23.3)

60335-2-89 © IEC:2010 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
61C/208/FDIS 61C/211/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fourth edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for commercial
refrigerating appliances with an incorporated or remote refrigerant unit or compressor.
Where a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. Where this standard states "addition", "modification” or
"replacement", the relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
NOTE 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
A list of all parts of the IEC 60335 series, under the general title: Household and similar
electrical appliances – Safety, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
NOTE 4 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.
The following differences exist in the countries indicated below.

– 6 – 60335-2-89 © IEC:2010
− 22.101: E12 and E17 lamp holders are checked as specified for E14 and B15 lamp holders. E26 lamp holder is
checked as specified for E27 and B22 lamp holders (Japan).
− 22.109: For unsealed glass tube heaters, the temperature requirements are different (Japan).

IMPORTANT – The “colour inside” logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this publication using a colour printer.

60335-2-89 © IEC:2010 – 7 –
INTRODUCTION
It has been assumed in the drafting of this International standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in
normal use taking into account the manufacturer's instructions. It also covers abnormal
situations that can be expected in practice and takes into account the way in which
electromagnetic phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply
mains. However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
When a part 2 standard does not include additional requirements to cover hazards dealt with
in Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal and generic standards covering a hazard are not applicable since they have been taken into
consideration when developing the general and particular requirements for the IEC 60335 series of standards. For
example, in the case of temperature requirements for surfaces on many appliances, generic standards, such as
ISO 13732-1 for hot surfaces, are not applicable in addition to Part 1 or part 2 standards.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features which impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of
the requirements and, if found to be substantially equivalent, may be considered to comply
with the standard.
– 8 – 60335-2-89 © IEC:2010
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-89: Particular requirements for commercial refrigerating appliances
with an incorporated or remote refrigerant unit or compressor

1 Scope
This clause of Part 1 is replaced by the following.
This International Standard specifies safety requirements for electrically operated commercial
refrigerating appliances that have an incorporated compressor or that are supplied in two
units for assembly as a single appliance in accordance with the manufacturer’s instructions
(split system).
NOTE 101 Examples of appliances that are within the scope of this standard are
– refrigerated display and storage cabinets;
– refrigerated trolley cabinets;
– service counters and self-service counters;
– blast chillers and blast freezers.
As far as is practicable, this standard deals with the common hazards presented by these
types of appliances.
It does not cover those features of construction and operation of refrigerating appliances
which are dealt with in ISO standards.
NOTE 102 Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be
necessary;
– in many countries, additional requirements are specified by national authorities.
NOTE 103 This standard does not apply to
– domestic refrigerating appliances (IEC 60335-2-24)
– industrial refrigerating systems;
– motor-compressors (IEC 60335-2-34);
– commercial dispensing appliances and vending machines (IEC 60335-2-75);
– commercial ice-cream appliances;
– commercial ice makers;
– cold temperature rooms;
– multiple refrigerated chambers with a remote compressor.
NOTE 104 Appliances with a charge of more than 150 g of flammable refrigerant in each separate refrigerant
circuit are not covered by this standard. For appliances with a charge greater than 150 g of flammable refrigerant
in each refrigerant circuit and for the installation, ISO 5149 may be applied. Consequently, such appliances cannot
be assessed for safety using this part 2.
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
60335-2-89 © IEC:2010 – 9 –
IEC 60079-4, Electrical apparatus for explosive gas atmospheres – Part 4: Method of test for
ignition temperature
IEC 60079-4A, Electrical apparatus for explosive gas atmospheres – Part 4: Method of test for
ignition temperatures – First supplement
IEC 60079-15:2005, Electrical apparatus for explosive gas atmospheres – Part 15:
Construction, test and marking of type of protection "n" electrical apparatus
IEC/TR 60079-20, Electrical apparatus for explosive gas atmospheres – Part 20: Data for
flammable gases and vapours, relating to the use of electrical apparatus
IEC 60335-2-5, Household and similar electrical appliances – Safety – Part 2-5: Particular
requirements for dishwashers
IEC 60335-2-34:2002, Household and similar electrical appliances – Safety – Part 2-34:
Particular requirements for motor-compressors
Amendment 1 (2004)
1)
Amendment 2 (2008)
ISO 817, Refrigerants – Designation system
ISO 3864-1, Graphical symbols – Safety colours and safety signs – Part 1: Design principles
for safety signs in workplaces and public areas
ISO 4126-2:2003, Safety devices for protection against excessive pressure – Bursting disc
safety devices
ISO 5149, Mechanical refrigerating systems used for cooling and heating – Safety
requirements
3 Definitions
This clause of Part 1 is applicable except as follows.
3.1.9 Replacement:
normal operation
operation of the appliance under the following conditions:
Refrigerating appliances are operated at an ambient temperature in accordance with 5.7,
empty, with doors or lids closed, or roller blinds closed or open, whichever is the more
unfavourable. User adjustable temperature control devices are short-circuited or otherwise
rendered inoperative. Devices which are switched, by dew-point controls or clocks, are
switched on or off, whichever is the more unfavourable.
For appliances connected to a water supply, the water other than cooling water, is at a
temperature of 15 °C ± 2 °C. The cooling water is at the maximum temperature specified in
the instruction.
For appliances with a separate refrigerant unit, the refrigerant unit is connected to the
cabinet in accordance with the manufacturer’s instructions.
—————————
1)
There exists a consolidated edition 4.2 (2009) that includes Edition 4 and its Amendment 1 and Amendment 2.

– 10 – 60335-2-89 © IEC:2010
3.101
refrigerated display and storage cabinet
enclosed cabinet which displays or stores beverages or chilled or frozen foodstuff placed
therein and which is cooled by a refrigerant unit
3.102
ancillary heating element
heating device which performs an auxiliary function, such as a defrost heater, door heater or
anti-condensation heater
3.103
skilled person
person having the appropriate technical training and experience necessary to be aware of
hazards to which he or she is exposed in performing a task and of measures necessary to
minimize the danger to his or herself or other persons
3.104
refrigerant unit
factory assembled unit for performing part of the refrigeration cycle (compressing gas,
condensation or gas cooling) comprising of one or more refrigerant compressors with motors,
condensers or gas coolers, liquid receivers, interconnection pipe work and ancillary
equipment, all mounted on a common base
3.105
flammable refrigerant
refrigerant with a flammability classification of group 2 or 3 in accordance with ISO 5149
NOTE For refrigerant blends which have more than one flammability classification, the most unfavourable
classification is taken for the purposes of this definition.
3.106
free space
space with a volume exceeding 60 l in which a child can be entrapped and which is accessible
after opening any door, lid or drawer and removing any detachable internal part, including
shelves, containers or removable drawers which are themselves only accessible after opening
any door or lid. In calculating the volume, a space with any single dimension not exceeding
150 mm or any two orthogonal dimensions each of which do not exceed 200 mm is ignored
3.107
transcritical refrigeration system
refrigeration system where the pressure in the high pressure side is above the pressure
where the vapour and liquid states of the refrigerant can coexist in thermodynamic equilibrium
3.108
gas cooler
heat exchanger in which, after compression the refrigerant is cooled down, by transferring
heat to an external cooling medium, without changing state
NOTE A gas cooler is normally used in transcritical refrigeration systems.
3.109
design pressure
gauge pressure that has been assigned to the high pressure side of a transcritical
refrigeration system
3.110
bursting disc
disc or foil which bursts at a predetermined pressure to reduce a pressure in a refrigeration
system
60335-2-89 © IEC:2010 – 11 –
3.111
pressure relief device
pressure sensing device, intended to reduce pressure automatically when pressures within
the refrigeration system exceed the setting pressure of the device
4 General requirement
This clause of Part 1 is applicable except as follows.
Addition:
NOTE 101 The use of flammable refrigerants involves some additional hazards which are not associated with
appliances which use non-flammable refrigerants.
This standard addresses the hazard due to ignition of leaked flammable refrigerant by potential ignition sources
associated with the appliance.
The hazard due to ignition of leaked flammable refrigerant by an external potential ignition source associated with
the environment in which the appliance is installed is compensated for by the low probability of ignition.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.2 Addition:
At least one additional specially prepared sample is required for the tests of 22.107.
NOTE 101 Unless the motor-compressor complies with IEC 60335-2-34, at least one additional specially prepared
sample may be required for the test of 19.1.
NOTE 102 At least one additional sample of the fan motor, thermal motor protector combination may be required
for the test of 19.1.
NOTE 103 The test of 22.7 may be performed on separate samples.
NOTE 104 Due to the potentially hazardous nature of the tests of 22.107, 22.108 and 22.109, special precautions
may need to be taken when performing the tests.
5.3 Addition:
Before starting the tests, the appliance shall be operated at rated voltage for at least 24 h,
then switched off and left to stand for at least 12 h.
5.7 Addition:
Tests in accordance with Clauses 10, 11 and 13 are performed at an ambient temperature of
– 32 °C ± 2 °C on appliances of climatic class 0, 1, 2, 3 , 4 or 6;
– 43 °C ± 2 °C on appliances of climatic class 5 or 7.
Before starting the tests specified in 10, 11 and 13, the appliance, with the doors or lids open,
is brought to the ambient specified temperature ±2 K.
Other tests are performed at an ambient temperature of 20 °C ± 5 °C.
Appliances classified for several climatic classes are tested at the ambient temperature
relevant to the highest climatic class.

– 12 – 60335-2-89 © IEC:2010
NOTE 101 Steady conditions are considered to be established when three successive readings of the
temperature, taken at approximately 60 min intervals, at the same point of any operating cycle, do not differ by
more than 1 K.
5.10 Addition:
For the tests of 22.107, 22.108 and 22.109, the appliance is empty and installed as follows.
Built-in appliances are installed in accordance with the instructions for installation.
Other appliances are placed in a test enclosure, the walls of which enclose the appliance as
closely as possible to all its sides and top surface, unless the manufacturer indicates in the
instructions for installation that a free distance shall be observed from the walls or the ceiling,
in which case this distance is observed during the test.
5.101 Appliances which use flammable refrigerants and which, according to the
instructions, may be used with other electrical appliances inside a food storage compartment,
are tested with such recommended appliances incorporated and in operation as they would be
in normal use.
NOTE Examples of such electrical appliances are ice-cream makers and deodorizers.
6 Classification
This clause of Part 1 is applicable except as follows.
6.101 Refrigerated display and storage cabinets shall be at least one of the following
climatic classes:
– appliance of class 0;
– appliance of class 1;
– appliance of class 2;
– appliance of class 3;
– appliance of class 4;
– appliance of class 5;
– appliance of class 6;
– appliance of class 7.
Compliance is checked by inspection.
NOTE The climatic classes are specified in ISO 23953-2.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Modification:
Replace the third dash by:
– rated current, in amperes;
Addition:
– the power input, in watts, of heating systems, if greater than 100 W;

60335-2-89 © IEC:2010 – 13 –
– the defrosting power input, in watts, if the current corresponding to the defrosting power
input is greater than the rated current of the appliance;
– one or more of the numerals; 0, 1, 2, 3, 4, 5, 6 or 7, indicating the climatic class of the
appliance;
– for incandescent lamps, the maximum rated wattage of the lamp, in watts;
– for discharge lamps, the rated wattage of the lamp, in watts;
– the total mass of refrigerant for each separate refrigerant circuit;
– for a single component refrigerant, at least one of the following:
• the chemical name,
• the chemical formula,
• the refrigerant number;
– for a blended refrigerant, at least one of the following:
• the chemical name and nominal proportion of each of its components,
• the chemical formula and nominal proportion of each of its components,
• the refrigerant number and nominal proportion of each of its components,
• the refrigerant number of the refrigerant blend.
– the chemical name or refrigerant number of the principal component of the insulation
blowing gas.
Refrigerent numbers shall be quoted in accordance with ISO 817.
NOTE 101 Pipe insulation or small items of insulation are not required to be marked.
Appliances which use flammable refrigerants shall be marked with the symbol “Caution: risk
of fire”.
Appliances employing R-744 in a transcritical refrigeration system shall be marked with the
substance of the following:
WARNING: System contains refrigerant under high pressure. Do not tamper with the
system. It must be serviced by qualified persons only.
Appliances employing R-744 in a transcritical refrigeration system shall be marked with
symbol ISO 7000-1701 (2004-01).
Appliances without automatic liquid-level control and which are intended to be connected to
the water supply mains or to be filled with liquid by the user shall be marked with the
maximum liquid level.
7.6 Addition:
Symbol ISO 3864-B.3.2 Caution: risk of fire

Symbol ISO 7000-1701 (2004-01) Pressure

– 14 – 60335-2-89 © IEC:2010
NOTE The rules for warning signs in ISO 3864-1 apply to the colour and shape of the symbol Caution: risk of fire.
7.12 Modification:
The instructions concerning persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge and children playing with the
appliance are not required.
Addition:
The instructions shall contain information regarding the maximum loading of each type of
shelf.
The instructions shall state the substance of the following.
Do not store explosive substances such as aerosol cans with a flammable propellant in
this appliance.
If symbol ISO 7000-1701 (2004-01) is used, its meaning shall be explained.
For appliances which use flammable refrigerants, the instructions shall include information
pertaining to the handling, servicing and disposal of the appliance.
The instructions for appliances which use flammable refrigerants shall include the substance
of the following warnings:
– WARNING: Keep clear of obstruction all ventilation openings in the appliance
enclosure or in the structure for building-in.
– WARNING: Do not use mechanical devices or other means to accelerate the
defrosting process, other than those recommended by the manufacturer.
– WARNING:  Do not damage the refrigerant circuit.
NOTE 101 This warning is only applicable for appliances with refrigerating circuits which are accessible by the
user.
– WARNING: Do not use electrical appliances inside the food storage compartments of
the appliance, unless they are of the type recommended by the
manufacturer.
For appliances which use flammable insulation blowing gases, the instructions shall include
information regarding disposal of the appliance.
For appliances provided with double-capped fluorescent lamps, the instructions shall include
the information that lamps have to be replaced by identical lamps only.
An explanation shall be given of the meaning of the alpha-numeric characters, indicating the
climatic class of the appliance, that are marked on the appliance.
The instructions for split-systems that use a flammable refrigerant shall include the
substance of the following warning.
WARNING: In order to reduce flammability hazards the installation of this appliance must
only be carried out by a suitably quali
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