Manual for Refrigeration Servicing Technicians - UNEP - Division of ...

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2 Refrigerants Content Selecting the refrigerant 4 Types of refrigerants 4 Refrigerant numbering 4 Refrigerant blends 4 Using Refrigerant Blends – issues and concepts 4 Lubricants 4 Refrigerants and applications 4 Further reading 4
2 Refrigerants 2.1. Section objectives This chapter provides a broad overview of most of the issues associated with refrigerants. This includes the criteria normally applied to their selection (for example, thermodynamic properties and safety characteristics), an overview of the various types of refrigerants and how they are identified. Particular attention is paid to the characteristics of refrigerant blends. Although not normally considered to be a refrigerant, the topic of refrigeration oils or lubricants is discussed since it effectively becomes part of the working fluid during system operation and thus requires special attention also. The information provided here should help the reader to be able to: • Identify refrigerant characteristics • Recognise the classification of refrigerants • State the main refrigerant groups • Identify the proper refrigerant for each refrigeration or air-conditioning system • State the main characteristics for the most commonlyused refrigerant • Identify the suitable lubricant for each refrigerant.
Page 1 and 2: Manual for Refrigeration Servicing
Page 3 and 4: Introduction When to use the manual
Page 5 and 6: Introduction The Factors affecting
Page 7 and 8: Introduction How to assess conditio
Page 9 and 10: Introduction Characteristics of Sel
Page 11 and 12: Introduction Another form of refere
Page 13 and 14: Introduction Choose your chapter Th
Page 15 and 16: 1 Environmental impact of refrigera
Page 17 and 18: 1 Environmental Impact The ozone la
Page 19 and 20: 1 Environmental Impact RADIATION FR
Page 21 and 22: 1 Environmental Impact The ozone la
Page 23 and 24: 1 Environmental Impact Effects of o
Page 25 and 26: 1 Environmental Impact The greenhou
Page 27 and 28: 1 Environmental Impact Timeline act
Page 29 and 30: 1 Environmental Impact Alternative
Page 31: 1 Environmental Impact The way forw
Page 35 and 36: 2 Refrigerants Chemical properties
Page 37 and 38: 2 Refrigerants Safety characteristi
Page 39 and 40: 2 Refrigerants Types of refrigerant
Page 41 and 42: 2 Refrigerants Those with ozone dep
Page 43 and 44: 2 Refrigerants Those with zero ozon
Page 45 and 46: 2 Refrigerants Carbon dioxide (CO2,
Page 47 and 48: 2 Refrigerants Azeotropic Blends An
Page 49 and 50: 2 Refrigerants Using Refrigerant Bl
Page 51 and 52: 2 Refrigerants Lubricants Today, al
Page 53 and 54: 2 Refrigerants Refrigerants and app
Page 55 and 56: 2 Refrigerants Properties of most c
Page 57 and 58: 3 Refrigerants Content Management M
Page 59 and 60: 3 Refrigerant Management The majori
Page 61 and 62: 3 Refrigerant Management Handling o
Page 63 and 64: 3 Refrigerant Management Recovery c
Page 65 and 66: 3 Refrigerant Management Refrigeran
Page 67 and 68: 3 Refrigerant Management Refrigeran
Page 69 and 70: 3 Refrigerant Management Open Refri
Page 71 and 72: 3 Refrigerant Management CHAPITRE 3
Page 73 and 74: 3 Refrigerant Management Recycling
Page 75 and 76: 3 Refrigerant Management equipment
Page 79 and 80: 3 Refrigerant Management PAGE 22 Ex
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3 Refrigerant Management Further re
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Summary This section will provide t
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4 Servicing Practices Moisture Mois
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4 Servicing Practices Non-condensab
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4 Servicing Practices Evacuation A
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4 Servicing Practices 7 - For large
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4 Servicing Practices Pressure unit
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CHAPITRE 4 4PAGE 10 LEAK DETECTION
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4 Servicing Practices Detection met
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4 Servicing Practices CHAPITRE 4 PA
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4 Servicing Practices Volumetric ch
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4 Servicing Practices Electronic ch
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4 Servicing Practices Why charge re
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5 Retrofitting Content General retr
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5 Retrofitting • Upon evaluation
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5 Retrofitting General retrofitting
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5 Retrofitting procedures that you
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5 Retrofitting MVAC retrofitting pr
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5 Retrofitting Although, in general
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5 Retrofitting Further reading UNEP
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6 Summary 6.1. Overview of refriger
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6 Safe Refrigerant Handling Oxygen
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6 Safe Refrigerant Handling The com
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6 Safe Refrigerant Handling • Nev
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6 Safe Refrigerant Handling Safe ha
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6 Safe Refrigerant Handling leak de
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6 Safe Refrigerant Handling • Lea
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6 Safe Refrigerant Handling Storage
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6 Safe Refrigerant Handling Recomme
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6 Safe Refrigerant Handling 3 - Sho
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Glossary Glossary Absolute pressure
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Glossary Fossil fuels Carbon-based
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Glossary hole in late 1985, governm
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Glossary Sealed system A refrigerat
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Acknowledgements Acknowledgements I
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Copyright Copyright © United Natio
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