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IEC 60335-2-104
Edition 2.0 2021-05
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-104: Particular requirements for appliances to recover and/or recycle
refrigerant from air conditioning and refrigeration equipment
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IEC 60335-2-104
Edition 2.0 2021-05
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-104: Particular requirements for appliances to recover and/or recycle
refrigerant from air conditioning and refrigeration equipment
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.200; 71.100.45 ISBN 978-2-8322-9784-1
– 2 – IEC 60335-2-104:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 General requirement . 10
5 General conditions for the tests . 10
6 Classification . 10
7 Marking and instructions . 11
8 Protection against access to live parts . 12
9 Starting of motor-operated appliances . 13
10 Power input and current . 13
11 Heating . 13
12 Void . 17
13 Leakage current and electric strength at operating temperature . 17
14 Transient overvoltages . 17
15 Moisture resistance . 17
16 Leakage current and electric strength . 18
17 Overload protection of transformers and associated circuits . 18
18 Endurance . 18
19 Abnormal operation . 18
20 Stability and mechanical hazards . 23
21 Mechanical strength . 23
22 Construction . 26
23 Internal wiring . 32
24 Components . 33
25 Supply connection and external flexible cords . 33
26 Terminals for external conductors . 33
27 Provision for earthing . 33
28 Screws and connections . 34
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 . 36
Annex AA (normative) Temperature and pressure test . 37
Annex BB (normative) Compatibility requirements . 39
Annex CC (normative) Pressure tests . 40
CC.1 General . 40
CC.2 Pressure test value determined under testing carried out in Clause 11. 40
CC.3 Pressure test value determined under testing carried out in Clause 19. 40
CC.4 Pressure test value determined under testing carried out under standstill
conditions . 40
CC.5 Fatigue test option for Clause CC.2 and CC.4 . 41
Annex DD (normative) Leak simulation tests . 43
DD.1 General . 43
DD.2 Test methods . 43
Annex EE (normative) Manual – Installation and operating instructions . 45
Bibliography . 47
Figure 101 – Supply circuit for locked-rotor test of a motor of the single-phase type . 35
Table 1 – Temperature limits . 14
Table 2 – Maximum winding temperature . 19
Table 3 – Maximum abnormal temperature . 22
Table 4 − High side pressure for strength tests . 30
Table 5 – Low side pressure for strength tests . 30
Table BB.1 – Alternate values of time and temperature for the compatibility test . 39
– 4 – IEC 60335-2-104:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-104: Particular requirements for appliances to recover and/or
recycle refrigerant from air conditioning and refrigeration equipment
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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment
declared to be in conformity with an IEC Publication.
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
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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) 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.
IEC 60335-2-104 has been prepared by subcommittee 61D: Appliances for air-conditioning for
household and similar purposes, of IEC technical committee 61: Safety of household and similar
electrical appliances. It is an International Standard.
This second edition cancels and replaces the first edition published in 2003. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Clause 1 – The scope has been edited to reflect that "appliance" in this document means
recovery and/or recycle equipment to recover and/or recycle refrigerant from air-
conditioning and refrigeration equipment.
b) Clause 2 – Normative references were added.
c) Clause 3 – Some definitions were deleted, some were added.
d) Subclause 7.1 – Some markings were deleted, some were added.
...