CEN/TC 182/WG 6 - Revision of EN 378

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 3 of the European Standard is applicable to the installation site (plant space and services). It specifies requirements on the site for safety, which may be needed because of, but not directly connected with, the refrigerating system and its ancillary components.
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 of !EN 378 1:2016+A1:2020", 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 for another refrigerant type, in which case conformity with the relevant clauses of parts 1 to 4 of the standard shall be assessed.

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 of EN 378 specifies the classification and selection criteria applicable to refrigerating systems. These classification and selection criteria are used in parts 2, 3 and 4.
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 Annex E of this European Standard are not covered by this standard.
Annex C specifies how to determine the amount of refrigerant permitted in a given space, which when exceeded, requires additional protective measures to reduce the risk.
Annex E specifies criteria for safety and environmental considerations of different refrigerants used in refrigeration and air conditioning.
This standard is not applicable to refrigerating 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 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.
Product family standards dealing with the safety of refrigerating systems takes precedence over horizontal and generic standards covering the same subject.

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 standard applies:
a)   to refrigerating systems, stationary or mobile, of all sizes including heat pumps;
b)   to secondary 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 product standards such as ISO 13043.
Systems using refrigerants other than those listed in FprEN 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 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 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.
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, refrigerating 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.
Subclauses 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.

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 FprEN 378-1:2016, FprEN 378-3:2016 or FprEN 378-4:2016 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 Annex E of FprEN-378 1:2016 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.

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 FprEN 378-1:2016, FprEN 378-3:2016 or FprEN 378-4:2016 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 Annex E of FprEN-378 1:2016 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.

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 3 of the European Standard is applicable to the installation site (plant space and services). It specifies requirements on the site for safety, which may be needed because of, but not directly connected with, the refrigerating system and its ancillary components.
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 of FprEN 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 for another refrigerant type, in which case conformity with the relevant clauses of parts 1 to 4 of the standard shall be assessed.

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 of EN 378 specifies the classification and selection criteria applicable to refrigerating systems. These classification and selection criteria are used in parts 2, 3 and 4.
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 Annex E of this European Standard are not covered by this standard.
Annex C specifies how to determine the amount of refrigerant permitted in a given space, which when exceeded, requires additional protective measures to reduce the risk.
Annex E specifies criteria for safety and environmental considerations of different refrigerants used in refrigeration and air conditioning.
This standard is not applicable to refrigerating 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 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.
Product family standards dealing with the safety of refrigerating systems takes precedence over horizontal and generic standards covering the same subject.

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 standard applies:
a)   to refrigerating systems, stationary or mobile, of all sizes including heat pumps;
b)   to secondary 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 product standards such as ISO 13043.
Systems using refrigerants other than those listed in FprEN 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 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 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.
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, refrigerating 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.
Subclauses 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.

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 3 of the European Standard is applicable to the installation site (plant space and services). It specifies requirements on the site for safety, which may be needed because of, but not directly connected with, the refrigerating system and its ancillary components.
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 of FprEN 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 for another refrigerant type, in which case conformity with the relevant clauses of parts 1 to 4 of the standard shall be assessed.

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 of EN 378 specifies the classification and selection criteria applicable to refrigerating systems. These classification and selection criteria are used in parts 2, 3 and 4.
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 Annex E of this European Standard are not covered by this standard.
Annex C specifies how to determine the amount of refrigerant permitted in a given space, which when exceeded, requires additional protective measures to reduce the risk.
Annex E specifies criteria for safety and environmental considerations of different refrigerants used in refrigeration and air conditioning.
This standard is not applicable to refrigerating 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 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.
Product family standards dealing with the safety of refrigerating systems takes precedence over horizontal and generic standards covering the same subject.

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 standard applies:
a)   to refrigerating systems, stationary or mobile, of all sizes including heat pumps;
b)   to secondary 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 product standards such as ISO 13043.
Systems using refrigerants other than those listed in FprEN 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 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 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.
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, refrigerating 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.
Subclauses 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.

This European Standard specifies the requirements relating to safety of persons and property (but not goods in storage) and the local and global environment for:
a)   stationary and mobile refrigerating systems of all sizes, including heat pumps;
b)   secondary cooling or heating systems;
c)   location of these refrigerating systems.
NOTE 1   For secondary heating or cooling systems charged with any refrigerants listed in Annex E the charge
limitations of part 1 (Annex C) apply.
For refrigerating systems with a limited mass of refrigerant only some of the parts and clauses are
applicable. The exceptions are defined in the scope and the clauses of each part of EN 378.
This European Standard is not applicable to refrigerating systems with air or water as refrigerant.
Systems using refrigerants other than those listed in Annex E are not covered by this European Standard as long as a safety class is not assigned.
NOTE 2   For the safety classification of refrigerant fluids not included in Annex E, see Annex F.
This European Standard covers the hazards mentioned in the introduction.
This European Standard is applicable to new refrigerating systems and modification of existing refrigerating systems in case the type of refrigerant changed or pressure vessels are replaced. The part dealing with main-tenance, repair, operation, recovery, reuse and disposal also applies to existing systems. Parties
responsible for existing refrigerating systems should consider the safety and environmental aspects of this European Standard and implement the more stringent requirements so far as they are reasonably practicable.
Directive 94/9/EC concerning equipment and protective systems intended for use in potentially explosive
atmospheres can be applicable to the type of machine or equipment covered by this European Standard. The present standard is not intended to provide means of complying with the essential health and safety
requirements of Directive 94/9/EC.

This European Standard is applicable to the design, construction and installing of refrigerating systems
including piping, components and materials and including ancillary equipment directly associated with such systems. It also specifies requirements for testing, commissioning, marking and documentation. In case the heat transfer fluid is not gaseous at atmospheric pressure, the requirements for circuits for heat transfer fluids are excluded except for any safety devices associated with the refrigerating system. It is not applicable to
refrigerating systems with air or water as refrigerant and does not cover the requirements for equipment to be used in a potentially explosive atmosphere.
The following ancillary equipment includes:
-   fan and fan motor;
-   electrical motor and transmission for open compressor systems.
This European Standard specifies the requirements relating to stationary and mobile refrigerating systems of all sizes, including heat pumps.
Systems using refrigerants other than those listed in Annex E of #EN 378-1:2008+A2:2012$ are not cov-ered by this standard as long as a safety class is not assigned.
Basic safety requirements for refrigerating systems as defined in EN 378-1 are applicable for this standard.
Basic requirements for the installation site as defined in EN 378-3 apply.
This European Standard is not applicable to refrigeration systems and heat pumps which are manufactured before the date of its publication as EN.

The scope of EN 378-1:2008 is applicable.
This 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 refriger-ant, refrigerant oil, heat transfer medium, refrigerating system and part thereof.
These requirements are intended to minimise risks of injury to persons and damage to property and the envi-ronment resulting from improper handling of the refrigerants or from contaminants leading to system break-down and resultant emission of the refrigerant.
Certain clauses and subclauses of this European Standard are not applicable to unit systems self contained systems and systems built on site which operate with charges of refrigerant up to 3 kg of refrigerant.
These subclauses are 4.1.1, 4.1.2, 4.2, 4.3, 5.1.1 to 5.1.4, 5.2, 5.3.1, 5.3.3 and 6.6.
For these systems, the necessary maintenance has to be described in the instruction manual and should
repairs be necessary, contact the nearest authorised repair service centre.

1.1   The scope of EN 378-1:2008 is applicable.
1.2   This part three is applicable to the installation site (plant space, services and necessary personal protective equipment). It specifies requirements on the site for safety, which may be needed because of, but not directly connected with, the refrigerating system and its ancillary components.

This European Standard specifies the requirements relating to safety of persons and property (but not goods in storage) and the local and global environment for:
a)   stationary and mobile refrigerating systems of all sizes, including heat pumps;
b)   secondary cooling or heating systems;
c)   location of these refrigerating systems.
NOTE 1   For secondary heating or cooling systems charged with any refrigerants listed in Annex E the charge
limitations of part 1 (Annex C) apply.
For refrigerating systems with a limited mass of refrigerant only some of the parts and clauses are
applicable. The exceptions are defined in the scope and the clauses of each part of EN 378.
This European Standard is not applicable to refrigerating systems with air or water as refrigerant.
Systems using refrigerants other than those listed in Annex E are not covered by this European Standard as long as a safety class is not assigned.
NOTE 2   For the safety classification of refrigerant fluids not included in Annex E, see Annex F.
This European Standard covers the hazards mentioned in the introduction.
This European Standard is applicable to new refrigerating systems and modification of existing refrigerating systems in case the type of refrigerant changed or pressure vessels are replaced. The part dealing with main-tenance, repair, operation, recovery, reuse and disposal also applies to existing systems. Parties
responsible for existing refrigerating systems should consider the safety and environmental aspects of this European Standard and implement the more stringent requirements so far as they are reasonably practicable.
Directive 94/9/EC concerning equipment and protective systems intended for use in potentially explosive
atmospheres can be applicable to the type of machine or equipment covered by this European Standard. The present standard is not intended to provide means of complying with the essential health and safety
requirements of Directive 94/9/EC.

1.1   The scope of EN 378-1:2008 is applicable.
1.2   This part three is applicable to the installation site (plant space, services and necessary personal protective equipment). It specifies requirements on the site for safety, which may be needed because of, but not directly connected with, the refrigerating system and its ancillary components.

The scope of EN 378-1:2007 is applicable.
This 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 medium, refrigerating 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.
Certain clauses and subclauses of this European Standard are not applicable to unit systems self contained systems and systems built on site which operate with charges of refrigerant up to 3 kg of refrigerant.
These subclauses are 4.1.1, 4.1.2, 4.2, 4.3, 5.1.1 to 5.1.4, 5.2, 5.3.1, 5.3.3 and 6.6.
For these systems, the necessary maintenance has to be described in the instruction manual and should
repairs be necessary, contact the nearest authorised repair service centre.

This European Standard specifies the requirements relating to safety of persons and property (but not goods
in storage) and the local and global environment for:
a) stationary and mobile refrigerating systems of all sizes, including heat;
b) secondary cooling or heating systems;
c) location of these refrigerating systems.
NOTE 1 For secondary heating or cooling systems charged with any refrigerants listed in Annex E the charge
limitations of part 1 (Annex C) apply.
For refrigerating systems with a limited mass of refrigerant only some of the parts and clauses are
applicable. The exceptions are defined in the scope and the clauses of each part of EN 378.
This European Standard is not applicable to refrigerating systems with air or water as refrigerant.
Systems using refrigerants other than those listed in Annex E are not covered by this European Standard as
long as a safety class is not assigned.
NOTE 2 For the safety classification of refrigerant fluids not included in Annex E, see Annex F.
This European Standard covers the hazards mentioned in the introduction.

This European Standard is applicable to the design, construction and installing of refrigerating systems
including piping, components and materials and including ancillary equipment directly associated with such
systems. It also specifies requirements for testing, commissioning, marking and documentation. In case the
heat transfer fluid is not gaseous at atmospheric pressure, the requirements for circuits for heat transfer fluids
are excluded except for any safety devices associated with the refrigerating system. It is not applicable to
refrigerating systems with air or water as refrigerant and does not cover the requirements for equipment to be
used in a potentially explosive atmosphere.
The following ancillary equipment includes:
- fan and fan motor;
- electrical motor and transmission for open compressor systems.
This European Standard specifies the requirements relating to stationary and mobile refrigerating systems of
all sizes, including heat pumps.
Systems using refrigerants other than those listed in Annex E of EN 378-1:2008 are not covered by this
standard as long as a safety class is not assigned.
Basic safety requirements for refrigerating systems as defined in EN 378-1 are applicable for this standard.
Basic requirements for the installation site as defined in EN 378-3 apply.
This European Standard is not applicable to refrigeration systems and heat pumps which are manufactured
before the date of its publication as EN.