ÖNORM EN 378-3

1.1 The scope of EN 378-1 is applicable. 1.2 This Part 3 of the European Standard is applicable to the installation site (design of plant space and services) and personal protective equipment. 1.3 This Part 3 is not applicable to unit systems and self-contained systems which operate with charges of refrigerant up to 2,5 kg of group L1 refrigerant, 1,5 kg of group L2 refrigerant, and 1,0 kg of group L3 refrigerant. 1.4 Certain clauses and subclauses of this Part 3 are not applicable to systems built on site with charges of refrigerant up to 2,5 kg of group L1 refrigerant, 1,5 kg of group L2 refrigerant, and 1,0 kg of group L3 refrigerant. These clauses are: clause 5 and 6.1.2. 1.5 Certain clauses and subclauses of this Part 3 are not applicable to unit systems and self-contained systems which operate with charges of refrigerant up to 10,0 kg of group L1 refrigerant, and 2,5 kg of group L2 refrigerant. These clauses are: clause 5; 6.1.2; 6.2.3; 6.2.4; clause 7. 1.6 For refrigerating systems with a refrigerant charge of up to 10,0 kg of group L1 and up to 2,5 kg of group L2 and L3, clause 9 is only applicable to personnel doing maintenance, repair and recovery.