Alcance
This document specifies:
the classification and selection criteria applicable to refrigerating systems;
safety requirements for the installation site of refrigerating systems and their ancillary components.
These classification and selection criteria are used in ISO 5149-2 and ISO 5149-4.
This document is applicable to:
refrigerating systems, stationary or mobile, of all sizes, except vehicle air conditioning systems covered by a specific product standard, e.g. ISO 13043 and SAE J 639;
secondary cooling or heating systems;
the location of the refrigerating systems;
parts replaced and components added after publication of this document if they are not identical in function and in capacity.
This document is applicable:
to new refrigerating systems, extensions or modifications of already existing systems;
for used systems, being transferred to and operated on another site;
in the case of the conversion of a system for another refrigerant.
This document is only applicable to systems containing refrigerants which have a safety group classification and are listed in ISO 817.
