1. Refrigeration Systems Regulation, Standards and Guidance
Dr Dermot Cotter

2. Questions
1. When must standards be applied?
2. When must guidance be applied?
3. When must regulations be applied?

3. Purpose of Presentation
Introduction to Regulations
PER (PED)
PSSR & PUWER
DSEAR
MHSWR
Working to Standards
EN378 (Safety and environmental requirements)
EN60079 (Explosive atmospheres. Classification of areas)

4. Pressure Equipment Regulations 1999
PER (PED)
Pressure Equipment Regulations 1999
All components of a refrigeration systems must have a CE certificate and be CE marked
All new and modified refrigeration systems must have a GLOBAL CE certificate and EC mark
Who can CE mark a refrigeration system?
A notified body or a company certified by their notified body

5. PSSR & PUWER Pressure Systems Safety Regulations 2000
Applies to all systems
Focuses on stored energy
Systems with a compressor motor ≥25kW must have a WSE
Systems must be inspected according to the WSE
First Inspection completed before refrigerant is charged
The WSE and inspection must be documented by a competent person
Safety system testing (EN378)
Provision and Use of Work Equipment Regulations 1998
Piping that contains a toxic or flammable substance must be inspected
The inspection must be documented by a competent person

6. Flammability of Refrigerants
1 – non-flammable
2L – lower flammability 2
flammable
3 – higher flammability
EN378 Classification
CE certificate
R22
R134a
R513A
R407A R407F
CO2
R717
R1234yf
R1234ze
R32
R152a
R290
R1270
R600
Non-flammable
Flammable
DSEAR 2002 Classification

7. Dangerous Substance and Explosive Atmosphere Regulation 2002
DSEAR
Dangerous Substance and Explosive Atmosphere Regulation 2002
Risk assessment must be carried out before system is put into use
Eliminate or reduction of risk
Classification of area – EN
Arrangement to deal with accidents, incident & emergencies
Information & training
Adequate normal and emergency ventilation
Appropriate refrigerant detection
Requirements of EN378 safety systems

8. The Management of Health and Safety at Work Regulation 1999
MHSWR
The Management of Health and Safety at Work Regulation 1999
Risk assessment should be carried out for all refrigerants (including toxicity and asphyxiation risks)
Eliminate or reduction of risk
Arrangement to deal with accidents, incident & emergencies
Information & training
Occupancy ventilation
Appropriate refrigerant detection
Requirements of EN378 safety systems

9. Standards and Guidance
EN378 Refrigeration system and heat pumps – Safety and environmental requirement
Requirements for:
Where refrigerants and refrigerant quantities can be used
Design of machinery room
Emergency shower
Refrigerant detection system concentration levels
Occupancy and emergency ventilation requirements
Maintenance
O&M manuals

10. Guidance EN378 – This is the legally recognised guidance
Institute of Refrigeration (IOR) Code of Practice:
A1 Refrigerants (HFC’s)
A1 & A2 Refrigerants
Carbon Dioxide
Ammonia
Safe Management of Ammonia Refrigeration Systems (FSDF)

11. Summary PED PSSR & PUWER DSEAR MHSWR
Ensure your refrigeration system complies to regulations:
PED
New or modified refrigeration systems must be purchased with a global CE mark and certificate
PSSR & PUWER
WSE for vessel and piping + EN378 requirements
DSEAR
Classification of areas + risk assessment + EN378 requirements
MHSWR
Refrigerant risk assessment + EN378 requirements

12. THANK YOU! Thank You! For further support: T: 01332 756041M: E:
www:
THANK YOU!