Chapters per page:
Form #: 620-10
This chapter covers a listing of dates and events that illustrate the development of the industry and the variety of refrigerants used. Many other gases were studied and some, such as the hydrocarbon group, have found limited use.
Form #: 620-102
To supplement previously published case histories, EPA presents six more case histories that focus on small supermarket and restaurant chains, and their experiences with equipment and refrigerant retrofits and replacements and the use of mitigating refrigerants.
Form #: 620-108
This chapter describes typical applications, recycling/recovery procedures and equipment, and precautions applicable to this new refrigerant product.
Form #: 620-11
This chapter’s topic is “Should mixed refrigerants be used at all?” In general it would seem less complicated and more desirable to use a single refrigerant whenever one with suitable properties is available. However, in applications where the performance of single refrigerants may leave room for improvement, mixtures can be effectively used.
Form #: 620-111
This chapter contains information regarding the determination of commercial refrigeration head pressure for air-cooled condensers, evaporative condensers, and water-cooled condensers with the chart covering Temperature–Pressure Values of Common Refrigerants at Saturation.
Form #: 620-113
This chapter will review the older refrigerant (R-22) first, and then refer to one of the newer replacement refrigerants (R-410A).
Form #: 620-114
This chapter covers a discussion of how physical characteristic curves, or pressure-enthalpy diagrams, can be developed for stable refrigerants.
Form #: 620-115
The purpose of this chapter is not only to explain the pressure-temperature relationship, but also to illustrate how a P-T chart can be used to thoroughly analyze a refrigeration or air conditioning system
Form #: 620-116
This chapter contains precautions and procedures for servicing flammable and nonflammable refrigerant systems.
Form #: 620-117
The information contained in this chapter will help you better adapt to changing industry practices and provide consumers with appropriate service and information. This chapter also answers some of the most frequently asked questions about the phasing out of HCFC Refrigerants (ex.: What alternatives to R22 are acceptable and available? Is EPA certification required to purchase R-410A or to service R-410A systems?)