Refrigerating systems and heat pumps - Safety and environmental requirements - Part 2: Design, construction, testing, marking and documentation

This European Standard specifies the requirements for the safety of persons and property, provides guidance for the protection of the environment and establishes procedures for the operation, maintenance and repair of refrigerating systems and the recovery of refrigerants.
This Part 2 of this Standard is applicable to the design, construction and installation of refrigerating systems including piping, components and materials and including ancillary equipment directly associated with such systems which are not covered in EN 378-1, EN 378-3 or EN 378-4.  It also specifies requirements for testing, commissioning, marking and documentation. Requirements for secondary heat transfer circuits are excluded except for any safety devices associated with the refrigerating system.  Ancillary equipment includes, for example, fans, fan motors, electrical motors and transmission assemblies for open compressor systems.
The term "refrigerating system" used in this European Standard includes heat pumps.
The standard applies:
a)   to refrigerating systems, stationary or mobile, of all sizes, except to road vehicle air conditioners covered by specific product standards such as ISO/DIS 13043 and SAE J 639.;
b)   to secondary cooling or heating systems;
c)   to the location of the refrigerating systems; and
d)   to parts replaced and components added after adoption of this standard if they are not identical in function and capacity.
Systems using refrigerants other than those listed in Annex E of EN 378-1 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 refrigerating systems 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 modifications 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 shall be assessed.

Kälteanlagen und Wärmepumpen - Sicherheitstechnische und umweltrelevante Anforderungen - Teil 2: Konstruktion, Herstellung, Prüfung, Kennzeichnung und Dokumentation

Diese Europäische Norm legt die Anforderungen an die Sicherheit von Personen und Eigentum fest, liefert eine Anleitung in Hinblick auf den Schutz der Umwelt und enthält Vorgehensweisen für Betrieb, Instandhaltung und Instandsetzung von Kälteanlagen und die Rückgewinnung von Kältemitteln.
Der vorliegende Teil 2 dieser Norm gilt für die Konstruktion, Herstellung und Aufstellung von Kälteanlagen, einschließlich Rohrleitungen, Bauteilen und Werkstoffen sowie mit diesen Anlagen direkt verbundenen Zusatzausrüstungen, die nicht durch EN 378 1, EN 378 3 und EN 378 4 abgedeckt sind. Diese Norm legt außerdem Anforderungen an die Prüfung, Inbetriebnahme, Kennzeichnung und Dokumentation fest. Anforderungen an Sekundär-Wärmeträger-Kreisläufe mit Ausnahme jeglicher mit der Kälteanlage verbundener Sicherheitseinrichtungen sind ausgeschlossen. Die Zusatzausrüstung umfasst z. B. Ventilatoren und Ventilatormotoren, Elektromotoren und Getriebe für offene Verdichtersysteme.
Die in dieser Europäischen Norm verwendete Benennung „Kälteanlage“ schließt Wärmepumpen mit ein.
Diese Norm gilt für:
a)   stationäre und ortsveränderliche Kälteanlagen aller Größen mit Ausnahme von Klimaanlagen für Straßenfahrzeuge nach den spezifischen Produktnormen wie z. B. ISO/DIS 13043 und SAE J 639;
b)   indirekte Kühl- oder Heizsysteme;
c)   den Aufstellungsort dieser Kälteanlagen; und
d)   nach der Annahme dieser Norm ersetzte Teile und hinzugefügte Bauteile, sofern sie nicht in Funktion und Leistung identisch sind.
Anlagen mit anderen als den in EN 378 1, Anhang E, aufgeführten Kältemitteln sind nicht Gegenstand dieser Norm, sofern sie keiner Sicherheitsgruppe nach ISO 817 zugeordnet sind.
Die vorliegende Norm gilt nicht für eingelagerte Güter.
Diese Norm gilt nicht für Kälteanlagen, die vor dem Datum ihrer Veröffentlichung als Europäische Norm hergestellt wurden, ausgenommen sind im Anschluss an die Veröffentlichung erfolgte Erweiterungen und Modifizierungen an der Anlage.
Die vorliegende Norm gilt für neue Kälteanlagen, Erweiterungen oder Modifizierungen bereits bestehender Anlagen sowie bestehende stationäre Anlagen, die an einen anderen Standort verbracht und dort betrieben werden.
Diese Norm gilt auch im Falle der Umstellung einer Anlage auf eine andere Art des Kältemittels; in diesem Fall ist die Konformität mit den zutreffenden Abschnitten der Teile 1 bis 4 der Norm zu beurteilen.

Systèmes de réfrigération et pompes à chaleur - Exigences de sécurité et d'environnement - Partie 2 : Conception, construction, essais, marquage et documentation

La présente Norme européenne spécifie les exigences relatives à la sécurité des personnes et des biens, fournit des recommandations pour la protection de l'environnement et établit des modes opératoires pour le fonctionnement, la maintenance et la réparation des systèmes frigorifiques et la récupération des fluides frigorigènes.
La présente Partie 2 de la norme est applicable à la conception, à la construction et à l'installation des systèmes frigorifiques, y compris les tuyauteries, composants et matériaux utilisés ainsi que les équipements auxiliaires directement associés à ces systèmes qui ne sont pas couverts par l'EN 378-1, l'EN 378-3 ou l'EN 378-4. Elle spécifie également des exigences pour les essais, la mise en service, le marquage et la documentation. Les exigences relatives aux circuits secondaires de fluide caloporteur sont exclues, excepté pour tout dispositif de sécurité associé au système frigorifique.  Les équipements auxiliaires comprennent, par exemple, les ventilateurs, les moteurs de ventilateur, les moteurs électriques et les organes de transmission pour systèmes de compresseurs ouverts.
Le terme « système frigorifique » utilisé dans la présente Norme européenne inclut les pompes à chaleur.
La norme s'applique :
a)   aux systèmes frigorifiques, fixes ou mobiles, de toutes tailles, excepté les climatiseurs pour véhicules routiers couverts par des normes de produit spécifiques telles que l'ISO/DIS 13043 et la SAE J 639 ;
b)   aux systèmes secondaires de refroidissement ou de chauffage ;
c)   à l'emplacement des systèmes frigorifiques ; et
d)   aux pièces remplacées et composants ajoutés après l'adoption de la présente norme, si leur fonction ou leur capacité n'est pas identique.
Les systèmes utilisant des fluides frigorigènes autres que ceux mentionnés en Annexe E de l'EN 378-1 ne sont pas couverts par la présente norme, sauf si une classe de sécurité leur a été assignée conformément à l'ISO 817.
La présente norme ne s'applique pas aux marchandises en stock.
La présente norme n'est pas applicable aux systèmes frigorifiques fabriqués avant sa date de publication en tant que Norme européenne, à l'exception des extensions et modifications du système mises en œuvre après la publication.
La présente norme s'applique aux systèmes frigorifiques neufs, aux extensions ou modifications de systèmes existants et, pour les systèmes fixes existants, aux systèmes transférés et exploités sur un autre site.
La présente norme s'applique également en cas de transformation d'un système pour un autre type de fluide frigorigène, auquel cas la conformité aux articles applicables des parties 1 à 4 de la norme doit être évaluée.

Hladilni sistemi in toplotne črpalke - Varnostnotehnične in okoljevarstvene zahteve - 2. del: Načrtovanje, izdelava, preskušanje, označevanje in dokumentacija

Ta evropski standard določa zahteve za varnost oseb in premoženja, določa smernice za varstvo okolja ter določa postopke za delovanje, vzdrževanje in popravilo hladilnih sistemov ter izpraznitev hladilnih sredstev.
Drugi del tega standarda se uporablja za načrtovanje, izdelavo in namestitev hladilnih sistemov, vključno z ocevjem, sestavnimi deli in materiali ter pomožno opremo, ki je neposredno povezana s takšnimi sistemi, ki niso zajeti v standardih EN 378-1, EN 378-3 ali EN 378-4.  Določa tudi zahteve za preskušanje, začetek obratovanja, označevanje in dokumentacijo. Zahteve za sekundarna vezja za prenos toplote niso zajeta, razen za morebitne varnostne naprave, povezane s hladilnim sistemom.  Pomožna oprema vključuje npr. ventilatorje, motorje ventilatorjev, električne motorje in prenosne sestave za odprte kompresorske sisteme.
Pojem »hladilni sistem« v tem evropskem standardu zajema tudi toplotne črpalke.
Ta standard se uporablja za:
a) hladilne sisteme, nepremične ali premične, vseh velikosti, razen klimatskih naprav cestnih vozil, ki jih zajemajo posebni standardi za proizvode, kot sta ISO/DIS 13043 in SAE J 639;
b) sekundarne hladilne ali ogrevalne sisteme;
c) mesto postavitve teh hladilnih sistemov; in
d) dele in komponente, ki so bili zamenjani in dodani po sprejetju tega standarda, če nimajo enake funkcije in zmogljivosti.
Sistemi, ki uporabljajo hladilna sredstva, ki niso navedena v dodatku E standarda EN 378-1, niso zajeti v tem standardu, razen če jim je bil dodeljen varnostni razred v skladu s standardom ISO 817.
Ta standard se ne uporablja za skladiščeno blago.
Ta standard se ne uporablja za hladilne sisteme, ki so bili izdelani pred datumom objave standarda kot evropskega standarda, razen za razširitve in spremembe sistema, ki so bile uvedene po objavi.  
Ta standard se uporablja za nove hladilne sisteme, razširitve ali spremembe že obstoječih sistemov in za obstoječe stacionarne sisteme, ki se prenesejo in upravljajo na drugem mestu postavitve.
Ta standard se uporablja tudi v primeru predelave sistema za drugo vrsto hladilnega sredstva, pri čemer je treba oceniti skladnost z ustreznimi točkami delov 1–4 tega standarda.

General Information

Status
Published
Public Enquiry End Date
14-Apr-2014
Publication Date
11-Dec-2016
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
08-Dec-2016
Due Date
12-Feb-2017
Completion Date
12-Dec-2016

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.PHQWDFLMDKälteanlagen und Wärmepumpen - Sicherheitstechnische und umweltrelevante Anforderungen - Teil 2: Konstruktion, Herstellung, Prüfung, Kennzeichnung und DokumentationSystèmes de réfrigération et pompes à chaleur - Exigences de sécurité et d'environnement - Partie 2 : Conception, construction, essais, marquage et documentationRefrigerating systems and heat pumps - Safety and environmental requirements - Part 2: Design, construction, testing, marking and documentation27.200Hladilna tehnologijaRefrigerating technology27.080Heat pumpsICS:Ta slovenski standard je istoveten z:EN 378-2:2016SIST EN 378-2:2017en,fr,de01-februar-2017SIST EN 378-2:2017SLOVENSKI

STANDARDSIST EN 378-2:2008+A2:20121DGRPHãþD
SIST EN 378-2:2017
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 378-2
November
t r s x ICS
t yä r z râ
t yä t r r Supersedes EN
u y zæ tã t r r z ªA tã t r s tEnglish Version

Refrigerating systems and heat pumps æ Safety and environmental requirements æ Part

tã Designá constructioná testingá marking and documentation Systèmes frigorifiques et pompes à chaleur æ Exigences de sécurité et d 5environnement æ Partie

tã Conceptioná constructioná essaisá marquage et documentation

Kälteanlagen und Wärmepumpen æ Sicherheitstechnische und umweltrelevante Anforderungen æ Teil

tã Konstruktioná Herstellungá Prüfungá Kennzeichnung und Dokumentation This European Standard was approved by CEN on

u September
t r s xä

egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä

translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels

t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN

u y zæ tã t r s x ESIST EN 378-2:2017

EN 378-2:2016 (E) 2 Contents Page European foreword ....................................................................................................................................................... 5 Introduction .................................................................................................................................................................... 7 1 Scope .................................................................................................................................................................... 8 2 Normative references .................................................................................................................................... 8 3 Terms, definitions and abbreviated terms ......................................................................................... 12 4 Significant hazards ...................................................................................................................................... 13 5 Safety requirements .................................................................................................................................... 13 5.1 General safety and environmental requirements ............................................................................ 13 5.1.1 General ............................................................................................................................................................. 13 5.1.2 Hazards to persons, property and environment .............................................................................. 13 5.2 Safety requirements for components and piping ............................................................................. 13 5.2.1 General requirements ................................................................................................................................ 13 5.2.2 Specific requirements ................................................................................................................................. 15 5.3 Miscellaneous components ...................................................................................................................... 16 5.3.1 Materials .......................................................................................................................................................... 16 5.3.2 Testing .............................................................................................................................................................. 18 5.3.3 Marking ............................................................................................................................................................ 20 5.3.4 Documentation .............................................................................................................................................. 20 6 Requirements for assemblies .................................................................................................................. 21 6.1 General ............................................................................................................................................................. 21 6.2 Design and construction ............................................................................................................................ 22 6.2.1 General ............................................................................................................................................................. 22 6.2.2 Determination of the maximum allowable pressure ...................................................................... 22 6.2.3 Piping ................................................................................................................................................................ 25 6.2.4 Shut off devices ............................................................................................................................................. 30 6.2.5 Protection devices ....................................................................................................................................... 31 6.2.6 Application of protection devices .......................................................................................................... 31 6.2.7 Indicating and measuring instruments (monitoring) .................................................................... 39 6.2.8 Liquid slugging in compressors .............................................................................................................. 40 6.2.9 Electrical requirements ............................................................................................................................. 40 6.2.10 Protection against hot surfaces............................................................................................................... 40 6.2.11 Protection against moving parts ............................................................................................................ 40 6.2.12 Vibration and drop test .............................................................................................................................. 40 6.2.13 Transport test ................................................................................................................................................ 43 6.2.14 Protection against fire and explosion hazards .................................................................................. 43 6.2.15 Requirements for ventilated enclosures ............................................................................................. 45 6.2.16 Electromagnetic compatibility and fields (EMC, EMF).................................................................... 45 6.2.17 Noise ................................................................................................................................................................. 46 6.3 Testing .............................................................................................................................................................. 46 6.3.1 Tests .................................................................................................................................................................. 46 6.3.2 Strength pressure test ................................................................................................................................ 46 6.3.3 Tightness test ................................................................................................................................................. 47 6.3.4 Test of the complete refrigerating system before putting it into operation .......................... 49 6.4 Marking and documentation .................................................................................................................... 50 SIST EN 378-2:2017

EN 378-2:2016 (E) 3 6.4.1 General ............................................................................................................................................................. 50 6.4.2 Marking ............................................................................................................................................................ 50 6.4.3 Documentation .............................................................................................................................................. 52 Annex A (normative)

Additional requirements for refrigerating systems containing R-717 ....... 55 A.1 Systems with a refrigerant charge above 50 kg ................................................................................. 55 A.2 Systems with a refrigerant charge above 3 000 kg ........................................................................... 55 A.3 Pumps ............................................................................................................................................................... 55 Annex B (normative)

Determination of category for components and refrigerating system assemblies ....................................................................................................................................................... 56 B.1 General ............................................................................................................................................................. 56 B.2 Classification of the refrigerant ............................................................................................................... 56 B.3 Determine the maximum allowable pressure of the assembly ................................................... 56 B.4 Determine the state (liquid or gas) of the refrigerant .................................................................... 56 B.5 Determination of category of components .......................................................................................... 56 B.5.1 General ............................................................................................................................................................. 56 B.5.2 Pressure vessels and piping...................................................................................................................... 56 B.5.3 Safety accessories ......................................................................................................................................... 60 B.5.4 Joining of pressure equipment ................................................................................................................ 60 B.6 Determination of category of the assembly ........................................................................................ 63 Annex C (normative)

Requirements for intrinsic safety test ..................................................................... 64 C.1 General ............................................................................................................................................................. 64 C.2 Determination of the maximum pressure during abnormal operation ................................... 64 C.2.1 Determination of the pressure at the high pressure side (PHIS) ................................................. 64 C.2.2 Determination of the pressure at the low pressure side (PLIS) ................................................... 64 C.2.3 Determination of PHIS and PLIS for reversible heat pumps ........................................................... 65 C.3 Strength pressure test ................................................................................................................................. 65 C.4 Test results ...................................................................................................................................................... 65 Annex D (normative)

List of significant hazards ............................................................................................ 66 Annex E (informative)

Assessment of assemblies for compliance with directive 2014/68/EU .................................................................................................................................................... 67 Annex F (informative)

Examples for arrangement of pressure relief devices in refrigerating systems ............................................................................................................................................................. 68 Annex G (informative)

Checklist for external visual inspection of the installation .......................... 71 Annex H (informative)

Stress corrosion cracking ......................................................................................... 73 H.1 Introduction.................................................................................................................................................... 73 H.2 Stress corrosion in copper ........................................................................................................................ 73 H.3 Stress corrosion in steel ............................................................................................................................. 73 H.4 Factors that influence stress corrosion cracking .............................................................................. 74 SIST EN 378-2:2017

EN 378-2:2016 (E) 4 H.4.1 General ............................................................................................................................................................. 74 H.4.2 Yield strength ................................................................................................................................................ 74 H.4.3 Temperature .................................................................................................................................................. 74 H.4.4 Oxygen content ............................................................................................................................................. 74 H.4.5 Water content ................................................................................................................................................ 74 H.4.6 Age of equipment ......................................................................................................................................... 74 H.4.7 Avoiding stress corrosion cracking ....................................................................................................... 75 H.4.8 Conclusions .................................................................................................................................................... 75 Annex I (informative)

Leak simulation test for A2L, A2, A3, B2L, B2, B3 refrigerants .................... 76 Annex J (informative)

Commissioning procedure ......................................................................................... 78 Annex K (informative)

Information on effective ignition sources .......................................................... 79 Annex ZA (informative)

Relationship between this European Standard and the Essential Requirements of EU Directive 2014/68/EU ....................................................................................... 81 Annex ZB (informative)

Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC ....................................................................................... 83 Bibliography ................................................................................................................................................................. 85

SIST EN 378-2:2017

EN 378-2:2016 (E) 5 European foreword This document (EN 378-2:2016) 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 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 subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 378-2:2008+A2:2012. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document. EN 378 consists of the following parts under the general title “Refrigerating systems and heat pumps — Safety and environmental requirements”: — Part 1: Basic requirements, definitions, classification and selection criteria; — Part 2: Design, construction, installing, testing, marking and documentation; — Part 3: Installation site and personal protection; — Part 4: Operation, maintenance, repair and recovery. The main changes in part 2 with respect to the previous edition are listed below: — Harmonization as far as possible with ISO 5149:2014 and ISO 817:2014; — Harmonizing requirements with DIRECTIVE 2014/68/EU (PED), related to pressure and DIRECTIVE 2006/42/EC (MD). Following detailed changes are worth noting: — In 5.2.1, the application of harmonized standard for components has been clarified, by making the note normative; — The content of the former Table 3 has been integrated in 6.2.6.2, with necessary modifications of the flow chart in Figure 1; — Replacement of 6.2.2.3 with requirements related to pressure rise in case of external fire; — Improvement 6.2.5.2.2, regarding electronic safety switching devices for limiting the pressure; — Rearrangement of the transport and vibration tests formerly 6.2.12 and now 6.2.12 and 6.2.13; SIST EN 378-2:2017

EN 378-2:2016 (E) 6 — Modification of the explosion hazard requirements in 6.2.14 (formerly 6.2.13); — Addition of Annex H on stress corrosion cracking, Annex I on leak simulation test, Annex J on commissioning procedure, Annex K on ignition sources; — Modification of Annex ZA for harmonization with DIRECTIVE 2014/68/EU (PED); — Deletion of Annex ZB and the update of Annex ZC (now new Annex ZB). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 378-2:2017

EN 378-2:2016 (E) 7 Introduction The introduction of EN 378-1 is applicable. This standard is a type C standard as stated in EN ISO 12100. The machinery concerned and the extent to which hazards, hazardous situations and hazardous events are covered are indicated in the scope of this standard. When provisions of this type C standard are different from those which are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of the other standards, for machines that have been designed and built according to the provisions of this type C standard. SIST EN 378-2:2017

EN 378-2:2016 (E) 8 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 for 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 Part 2 of this Standard is applicable to the design, construction and installation of refrigerating systems including piping, components and materials. It includes ancillary equipment not covered in EN 378-1, EN 378-3 or EN 378-4 which is directly associated with these systems. It also specifies requirements for testing, commissioning, marking and documentation. Requirements for secondary heat transfer circuits are excluded except for any protection requirements associated with the refrigerating system. Ancillary equipment includes, for example, fans, fan motors, electrical motors and transmission assemblies for open compressor systems. This standard applies: a) to refrigerating systems, stationary or mobile, of all sizes except to vehicle air conditioning systems covered by a specific product standard, e.g. ISO 13043; b) to secondary cooling or heating systems; c) to the location of the refrigerating systems; d) to replaced parts and added components after adoption of this standard if they are not identical in function and in the capacity. Systems using refrigerants other than those listed in EN 378-1:2016, Annex E are not covered by this standard. This standard does not apply to goods in storage. This standard is not applicable to refrigerating systems 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 modifications 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 shall be assessed. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document 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 — Part 1: Basic requirements, definitions, classification and selection criteria EN 378-3:2016, Refrigerating systems and heat pumps — Safety and environmental requirements — Part 3: Installation site and personal protection EN 378-4, Refrigerating systems and heat pumps — Safety and environmental requirements — Part 4: Operation, maintenance, repair and recovery SIST EN 378-2:2017

EN 378-2:2016 (E) 9 EN 809, Pumps and pump units for liquids — Common safety requirements EN 837-1:1996, Pressure gauges — Part 1: Bourdon tube pressure gauges — Dimensions, metrology, requirements and testing EN 837-2:1997, Pressure gauges — Part 2: Selection and installation recommendations for pressure gauges EN 837-3:1996, Pressure gauges — Part 3: Diaphragm and capsule pressure gauges — Dimensions, metrology, requirements and testing EN 1012-3, Compressors and vacuum pumps — Safety requirements — Part 3: Process compressors EN 1092-1, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN designated — Part 1: Steel flanges EN 1092-3:2003, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN designated — Part 3: Copper alloy flanges EN 1736:2008, Refrigerating systems and heat pumps — Flexible pipe elements, vibration isolators, expansion joints and non-metallic tubes — Requirements, design and installation EN 1861:1998, Refrigerating systems and heat pumps — System flow diagrams and piping and instrument diagrams — Layout and symbols EN 12178:2003, Refrigerating systems and heat pumps — Liquid level indicating devices — Requirements, testing and marking EN 12263:1998, Refrigerating systems and heat pumps — Safety switching devices for limiting the pressure — Requirements and tests EN 12284:2003, Refrigerating systems and heat pumps — Valves — Requirements, testing and marking EN 12693:2008, Refrigerating systems and heat pumps — Safety and environmental requirements — Positive displacement refrigerant compressors EN 12735-1, Copper and copper alloys — Seamless, round tubes for air conditioning and refrigeration — Part 1: Tubes for piping systems EN 12735-2, Copper and copper alloys - Seamless, round tubes for air conditioning and refrigeration - Part 2: Tubes for equipment EN 12799:2000, Brazing — Non-destructive examination of brazed joints EN 13136:2013, Refrigerating systems and heat pumps — Pressure relief devices and their associated piping — Methods for calculation EN 13313:2010, Refrigerating systems and heat pumps — Competence of personnel EN 13445-1:2014, Unfired pressure vessels — Part 1: General EN 13445-2:2014, Unfired pressure vessels — Part 2: Materials EN 13445-3:2014, Unfired pressure vessels — Part 3: Design SIST EN 378-2:2017

EN 378-2:2016 (E) 10 EN 13445-4:2014, Unfired pressure vessels — Part 4: Fabrication EN 13445-5:2014, Unfired pressure vessels — Part 5: Inspection and testing EN 13445-6:2014, Unfired pressure vessels — Part 6: Requirements for the design and fabrication of pressure vessels and pressure parts constructed from spheroidal graphite cast iron EN 13445-8:2014, Unfired pressure vessels — Part 8: Additional requirements for pressure vessels of aluminium and aluminium alloys EN 13480-1:2012, Metallic industrial piping — Part 1: General EN 13480-2:2012, Metallic industrial piping — Part 2: Materials EN 13480-3:2012, Metallic industrial piping — Part 3: Design and calculation EN 13480-4:2012, Metallic industrial piping — Part 4: Fabrication and installation EN 13480-5:2012, Metallic industrial piping — Part 5: Inspection and testing EN 13480-6:2012, Metallic industrial piping — Part 6: Additional requirements for buried piping EN 13480-8:2012, Metallic industrial piping — Part 8: Additional requirements for aluminium and aluminium alloy piping EN 14276-1:2006+A1:2011, Pressure equipment for refrigerating systems and heat pumps — Part 1: Vessels — General requirements EN 14276-2:2007+A1:2011, Pressure equipment for refrigerating systems and heat pumps — Part 2: Piping — General requirements EN 16084:2011, Refrigerating systems and heat pumps — Qualification of tightness of components and joints EN 60079-15:2010, Explosive atmospheres — Part 15: Equipment protection by type of protection "n" (IEC 60079-15:2010) EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General requirements (IEC 60204-1:2005, modified) EN 60335-1:2012, Household and similar electrical appliances — Safety — Part 1: General requirements (IEC 60335-1:2010, modified) EN 60335-2-24:2010, Household and similar electrical appliances — Safety — Part 2-24: Particular requirements for refrigerating appliances, ice-cream appliances and ice makers (IEC 60335-2-24:2010) EN 60335-2-34:2013, Household and similar electrical appliances — Safety — Part 2-34: Particular requirements for motor-compressors (IEC 60335-2-34:2012) EN 60335-2-40:2003, Household and similar electrical appliances — Safety — Part 2-40: Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers (IEC 60335-2-40:2002) SIST EN 378-2:2017

EN 378-2:2016 (E) 11 EN 60335-2-89:2010, 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) EN 61000-6-1:2007, Electromagnetic compatibility (EMC) — Part 6-1: Generic standards — Immunity for residential, commercial and light-industrial environments (IEC 61000-6-1:2005) EN 61000-6-2:2005, Electromagnetic compatibility (EMC) — Part 6-2: Generic standards — Immunity for industrial environments (IEC 61000-6-2:2005) EN 61000-6-3:2007, Electromagnetic compatibility (EMC) — Part 6-3: Generic standards — Emission standard for residential, commercial and light-industrial environments (IEC 61000-6-3:2006) EN 61000-6-4:2007, Electromagnetic c

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