1、March 2017 English price group 14No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 27.080; 27.200!%c+“2640893www.din.
2、deDIN EN 378-4Refrigerating systems and heat pumps Safety and environmental requirements Part 4: Operation, maintenance, repair and recovery;English version EN 3784:2016,English translation of DIN EN 378-4:2017-03Klteanlagen und Wrmepumpen Sicherheitstechnische und umweltrelevante Anforderungen Teil
3、 4: Betrieb, Instandhaltung, Instandsetzung und Rckgewinnung;Englische Fassung EN 3784:2016,Englische bersetzung von DIN EN 378-4:2017-03Systmes frigorifiques et pompes chaleur Exigences de scurit et denvironnement Partie 4: Fonctionnement, maintenance, rparation et rcupration;Version anglaise EN 37
4、84:2016,Traduction anglaise de DIN EN 378-4:2017-03SupersedesDIN EN 3784:201208www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.Document comprises 30 pages 03.17 2A comma is used as the decimal marker. Start of applicatio
5、n The start of application of this standard is 2017-01-03. National foreword This standard includes safety requirements. This document (EN 378-4:2016) has been prepared by Technical Committee CEN/TC 182 “Refrigerating systems, safety and environmental requirements” (Secretariat: DIN, Germany). The r
6、esponsible German body involved in its preparation was DIN-Normenausschuss Kltetechnik (DIN Standards Committee Refrigeration Technology), Working Committee NA 044-00-01 AA Sicherheit und Umweltschutz. The scope of this standard series does not only affect questions of system safety, but also differ
7、ent aspects of occupational health and construction law. This includes access categories of systems, limit values of refrigerants or protection of persons in cold rooms. The relevant applicable legislation includes, e.g., the Gefahrstoffverordnung (Hazardous Substances Ordinance), the Arbeitsstttenv
8、erordnung (Workplaces Ordinance), the Betriebssicherheitsverordnung (Ordinance on Industrial Safety and Health) and, where appropriate, building regulations of the Federal States of Germany. By meeting the requirements of standards, the user cannot assume, without additional verification, that the r
9、elevant regulations and aforementioned laws for refrigerating systems and heat pumps are observed. Amendments This standard differs from DIN EN 378-4:2012-08 as follows: a) it has been harmonized with ISO 5149:2014; b) in 5.3.8, a vacuum procedure has been added; c) in 6.2.3, a moisture test has bee
10、n added.Previous editions DIN EN 378-4: 2000-09, 2008-06, 2012-08 DIN EN 378-4 Corrigendum 1: 2010-01 DIN EN 378-4:2017-03EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 378-4 November 2016 ICS 27.080; 27.200 Supersedes EN 378-4:2008+A1:2012English Version Refrigerating systems and heat pumps -
11、 Safety and environmental requirements - Part 4: Operation, maintenance, repair and recovery Systmes frigorifiques et pompes chaleur - Exigences de scurit et denvironnement - Partie 4: Fonctionnement, maintenance, rparation et rcupration Klteanlagen und Wrmepumpen - Sicherheitstechnische und umweltr
12、elevante Anforderungen - Teil 4: Betrieb, Instandhaltung, Instandsetzung und Rckgewinnung This European Standard was approved by CEN on 3 September 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the sta
13、tus 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, G
14、erman). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croa
15、tia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and U
16、nited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No.
17、EN 378-4:2016 EEN 378-4:2016 2 Contents Page European foreword . 4 1 Scope 5 2 Normative references 5 3 Terms, definitions and abbreviated terms 6 4 General requirements . 6 4.1 Operating instructions 6 4.2 Documentation . 6 5 Maintenance and repair 6 5.1 General 6 5.2 Maintenance 7 5.3 Repair 8 5.4
18、 Change of refrigerant type . 9 5.4.1 General 9 5.4.2 Planning the change of refrigerant type . 9 5.4.3 Execution of the change of refrigerant type . 10 6 Requirements for recovery, reuse and disposal . 10 6.1 General requirements 10 6.1.1 Disposal . 10 6.1.2 Personnel 10 6.1.3 Parts of refrigeratin
19、g systems . 11 6.1.4 Refrigerants . 11 6.1.5 Handling 11 6.2 Requirements for recovery and reuse of refrigerant 11 6.2.1 General . 11 6.2.2 Recovery for general reuse . 12 6.2.3 Recovery for reuse in the same or similar system . 12 6.2.4 Requirements for refrigerant recovery and recycling equipment
20、and procedures 14 6.2.5 Reclaim 14 6.3 Requirements for refrigerant transfer, transport and storage . 14 6.3.1 General . 14 6.3.2 Refrigerant transfer 14 6.3.3 Transport 15 6.3.4 Storage . 15 6.4 Requirements for recovery equipment 15 6.4.1 General . 15 6.4.2 Operation with respect to the environmen
21、t . 16 6.4.3 Performance 16 6.4.4 Operation and maintenance . 16 6.5 Requirements for disposal . 16 6.5.1 Refrigerant not intended for reuse 16 6.5.2 Absorbed R-717 (ammonia) . 16 6.5.3 Refrigerating machine oil . 16 6.5.4 Other components . 16 6.6 Requirements for documentation 16 DIN EN 378-4:2017
22、-03 (E)EN 378-4:20163 Annex A (normative) Draining the oil from a refrigerating system 17 A.1 General . 17 A.2 Ammonia systems . 17 A.2.1 General . 17 A.2.2 Draining procedure . 17 Annex B (informative) Guide specification for recycled refrigerant 18 Annex C (informative) Handling and storage of ref
23、rigerants 19 C.1 General . 19 C.2 Handling . 19 C.3 Storage 20 C.4 Special provisions for handling ammonia vapour during maintenance or decommissioning 20 C.4.1 General . 20 C.4.2 Limitations of ammonia vapour absorption . 21 C.4.3 Procedure for ammonia vapour absorption . 21 C.4.4 Disposal of the a
24、qua-ammonia solution . 22 Annex D (informative) In-service inspection 23 D.1 During the operational life of the system, inspection and testing are carried out according to national regulations. 23 Annex E (informative) Guidelines for repairs of equipment using flammable refrigerants 25 E.1 General r
25、equirements for equipment . 25 E.2 Repairs to electrical components . 25 E.2.1 Repairs to electrical components . 25 E.2.2 Repairs to sealed components . 25 E.2.3 Repairs to intrinsically safe components. 26 E.3 Repairs to refrigerating system. 26 E.4 Requirements for the competent persons . 27 Bibl
26、iography . 28 DIN EN 378-4:2017-03 (E)EN 378-4:2016 4 European foreword This document (EN 378-4:2016) has been prepared by Technical Committee CEN/TC 182 “Refrigerating systems, safety and environmental requirements”, the secretariat of which is held by DIN. This European Standard shall be given the
27、 status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2017, and conflicting national standards shall be withdrawn at the latest by May 2017. Attention is drawn to the possibility that some of the elements of this document may be the subjec
28、t of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 378-4:2008+A1:2012. EN 378 consists of the following parts under the general title “Refrigerating systems and heat pumps Safety and environmental requiremen
29、ts”: Part 1: Basic requirements, definitions, classification and selection criteria; Part 2: Design, construction, testing, marking and documentation; Part 3: Installation site and personal protection; Part 4: Operation, maintenance, repair and recovery. The main changes in part 4 with respect to th
30、e previous edition are listed below: harmonisation as far as possible with ISO 5149:2014; addition of vacuum procedure in 5.3.8; addition of moisture test in 6.2.3. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to impleme
31、nt this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, S
32、lovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 378-4:2017-03 (E)EN 378-4:20165 1 Scope This European Standard specifies the requirements for the safety of persons and property, provides guidance for the protection of the environment and establishes procedures fo
33、r the operation, maintenance and repair of refrigerating systems and the recovery of refrigerants. The term “refrigerating system” used in this European Standard includes heat pumps. This standard applies: a) to refrigerating systems, stationary or mobile, of all sizes including heat pumps; b) to se
34、condary cooling or heating systems; c) to the location of the refrigerating systems; d) to parts replaced and components added after adoption of this standard if they are not identical in function and capacity. This standard does not cover “motor vehicle air conditioners” constructed according to pr
35、oduct standards such as ISO 13043. Systems using refrigerants other than those listed in EN 378-1:2016, Annex E are not covered by this standard unless they have been assigned to a safety class according to ISO 817. This standard does not apply to goods in storage. This standard is not applicable to
36、 refrigeration systems and heat pumps which were manufactured before the date of its publication as a European Standard except for extensions and modifications to the system which were implemented after publication. This standard is applicable to new refrigerating systems, extensions or modification
37、s of already existing systems, and for existing stationary systems, being transferred to and operated on another site. This standard also applies in the case of the conversion of a system to another refrigerant type, in which case conformity to the relevant clauses of parts 1 to 4 of the standard sh
38、all be assessed. This Part 4 of the European Standard specifies requirements for safety and environmental aspects in relation to operation, maintenance, and repair of refrigerating systems and the recovery, reuse and disposal of all types of refrigerant, refrigerant oil, heat-transfer fluid, refrige
39、rating system and part thereof. These requirements are intended to minimise risks of injury to persons and damage to property and the environment resulting from improper handling of the refrigerants or from contaminants leading to system breakdown and resultant emission of the refrigerant. Subclause
40、s 4, 5.1.1 to 5.1.4, 5.2, 5.3.1, 5.3.3 and 6.6 of this European Standard are not applicable to unitary systems having a power cord, being factory sealed, and in conformance with EN 60335 series. 2 Normative references The following documents, in whole or in part, are normatively referenced in this d
41、ocument and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 378-1:2016, Refrigerating systems and heat pumps Safety and environmental requirements
42、 Part 1: Basic requirements, definitions, classification and selection criteria EN 378-2:2016, Refrigerating systems and heat pumps Safety and environmental requirements Part 2: Design, construction, testing, marking and documentation DIN EN 378-4:2017-03 (E)EN 378-4:2016 6 EN 378-3, Refrigerating s
43、ystems and heat pumps Safety and environmental requirements - Part 3: Installation site and personal protection ISO 11650, Performance of refrigerant recovery and/or recycling equipment ISO 13043, Road vehicles Refrigerant systems used in mobile air conditioning systems (MAC) Safety requirements IEC
44、 60335-2-104, 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 3 Terms, definitions and abbreviated terms For the purposes of this document, the terms, definit
45、ions and abbreviated terms given in EN 378-1:2016 apply. 4 General requirements 4.1 Operating instructions 4.1.1 Before a new refrigerating system is put into service, the person responsible for placing the system in operation shall ensure that the operating personnel are instructed according to 4.1
46、.2. NOTE It is advisable that the operating personnel are present during evacuation, charging with refrigerant and adjustment of the refrigerating system as well as, if possible, during assembly on site. 4.1.2 Care shall be taken to ensure that the personnel charged with the operation, supervision a
47、nd maintenance of the refrigerating system are adequately instructed and competent with respect to their tasks, as well as the safety measures to be observed, and the properties and handling of the refrigerant used. Typical in-service inspection requirements are shown in Annex D. 4.2 Documentation T
48、he logbook shall be updated following any maintenance or repair. The logbook shall either be kept in the machinery room, or the data shall be stored digitally by the operator with a printout in the machinery room, in which case the information shall be accessible to the competent person when servici
49、ng or testing. 5 Maintenance and repair 5.1 General 5.1.1 Each refrigerating system shall be subjected to preventive maintenance in accordance with the instruction manual (see EN 378-2). NOTE The frequency of such maintenance depends on the type, size, age, use, etc. of the system. In many cases more than one maintenance service is required in the course of one year in accordance with legal requirements. 5.1.2 The operator of the r
