CEN Standards for Refrigeration Peter Horrocks Annual Meeting of the Regional Ozone Network for Europe & Central Asia, March 2008, Tirana, Albania March 2008, Tirana, Albania

CEN Standards CEN is European standards organisation CEN is European standards organisation Standards are technical definitions Standards are technical definitions Standards are established by interested stakeholders Standards are established by interested stakeholders Standards are based on consensus and openness Standards are based on consensus and openness Can be applied on a voluntary basis Can be applied on a voluntary basis Standards binding if contractually agreed too or if enshrined in national law Standards binding if contractually agreed too or if enshrined in national law Aim of CEN standard – EN 378 is to minimise hazards to persons, property and the environment from refrigeration systems and refrigerants Aim of CEN standard – EN 378 is to minimise hazards to persons, property and the environment from refrigeration systems and refrigerants

Progress to Date Pr EN has been drawn up by the Technical Committee TC 182 Pr EN has been drawn up by the Technical Committee TC 182 Consists of experts from designers, manufacturers, installers, servicing sector, users and disposal sector Consists of experts from designers, manufacturers, installers, servicing sector, users and disposal sector Revises environmental and safety standards of EN and establishes new safety and environmental parameters Revises environmental and safety standards of EN and establishes new safety and environmental parameters Takes into account specific requirements for safety and environment in Europe Takes into account specific requirements for safety and environment in Europe

Refrigeration Standards Reference Title: Refrigeration Systems and Heat Pumps Status prEN Safety and Environmental requirements – Part 1: Basic Requirements, definitions, classification and selection criteria Revision of EN- 378 finalised 12/2007 and accepted by majority – awaiting publication prEN Safety and Environmental requirements – Part 2: Design, construction, testing, marking and documentation Ditto prEN Safety and Environmental requirements – Part 3: Installation site and personal protection Ditto prEN Safety and Environmental requirements – Part 4: Operation, maintenance, repair and recovery Ditto

EN : 1 Updates key definitions of terms used in the standards Updates key definitions of terms used in the standards Provides a classification system on Provides a classification system on Types of refrigeration systems – direct and indirect Types of refrigeration systems – direct and indirect Usage of premises using the refrigerant system Usage of premises using the refrigerant system Refrigerants Refrigerants Annex C provides a listing of refrigerant charge for each refrigerant safety group according to a given system (direct or indirect) and location of refrigeration system Annex C provides a listing of refrigerant charge for each refrigerant safety group according to a given system (direct or indirect) and location of refrigeration system Annex E of the standard contains updated information on refrigerants and their classification Annex E of the standard contains updated information on refrigerants and their classification

Occupancy Categories General Characteristics Examples General occupancy A Rooms, building where people sleep or have restricted access and an uncontrolled number of people may be present Hospitals, courts, prisons, schools Supervised occupancy B Limited number of people in building or parts of it and some acquainted with general safety precautions Business or professional offices, labs, places where people work Authorised occupancy C Rooms or buildings with only authorised access Manufacturing facilities

Safety Classification System for Refrigerants FLAMMABILITYTOXICITY LOWERHIGHER No Flame propagation A1B1 Lower flammability A2B2 Higher flammability A3B3

Classification of Some Refrigerants ClassificationName Chemical formula Safety Classification ODPGWP R11TrichlorofluormethaneCCL3FA113,800 R22ChlorodifluoromethaneCHCIF2A10,0551,500 R134a tetrafluoromethane CH2FCF3A101,300 R152a 1.1- difluoroethane CH3CHF2A20140 R507 R125/R143a (50/50) A103,300 R717AmmoniaNH3B200 R744 Carbon Dioxide CO2A101

EN : 2 This standard has been prepared under a mandate given to CEN by the European Commission to support implementation of the Pressure Directive and the Machinery Directive This standard has been prepared under a mandate given to CEN by the European Commission to support implementation of the Pressure Directive and the Machinery Directive It defines various pressure levels that must be respected; refrigerant system layouts, testing and acceptance procedures It defines various pressure levels that must be respected; refrigerant system layouts, testing and acceptance procedures

EN : 3 This standard has been prepared under a mandate given to CEN by the European Commission to support implementation of EU Directives This standard has been prepared under a mandate given to CEN by the European Commission to support implementation of EU Directives Sets out principles governing the design, construction and use of Sets out principles governing the design, construction and use of machine rooms machine rooms Electrical systems Electrical systems Refrigeration detection systems Refrigeration detection systems Annex A describes personal protective equipment Annex A describes personal protective equipment

EN : 4 Sets out safety and environmental requirements during plant operation, maintenance and repairs Sets out safety and environmental requirements during plant operation, maintenance and repairs Includes the recovery, reuse and disposal of all types of refrigerant and refrigerant systems and their parts Includes the recovery, reuse and disposal of all types of refrigerant and refrigerant systems and their parts Focus on training and skills of personnel working in refrigeration plants Focus on training and skills of personnel working in refrigeration plants

Policy-Standards Interface European Standards on refrigeration complement environmental and safety legislation European Standards on refrigeration complement environmental and safety legislation Regulation (EC) No 2037/2000 shall promote the preparation of European standards relating to the control of leakage, to the recovery of substances leaking from refrigeration equipment and to technical requirements with respect to leak proofness of refrigeration systems. Regulation (EC) No 2037/2000 shall promote the preparation of European standards relating to the control of leakage, to the recovery of substances leaking from refrigeration equipment and to technical requirements with respect to leak proofness of refrigeration systems. EN takes into account mandates of EU in relation to Pressure Directive and Machinery Directive EN takes into account mandates of EU in relation to Pressure Directive and Machinery Directive Revision of EN 13313: competence of personnel underway to take account of implementing regulations of Regulation (EC) No 842/2006 Revision of EN 13313: competence of personnel underway to take account of implementing regulations of Regulation (EC) No 842/2006