However, once the decision has been made to make the change from r22 to hfc r407acf, r448a, r449a or r427a the following guidelines. However, r22 will be phased out in the first quarter of the 21st century. Toxic gases can be produced in fires involving this material. The federal clean air act restricts the sale and use of cfc and hcfc refrigerants to technicians certified by an epaapproved testing organization. The results can be downloaded to microsoft excel for reporting, and allows for comparison of the performance of multiple refrigerants across manufacturers. The following tables show the percentage composition of refrigerant blends found acceptable acceptablethis designation means that a substitute may be used, without restriction, to replace the relevant ods within the enduse specified. It is suitable for new installations and retrofits on existing r22, r507 and r404a units. It has been formulated to closely match the properties of r22. Comparison chart for hfc and hfo replacement refrigerants. Properties and performance r407f is designed to meet the needs of many types of new and existing refrigeration systems. In order to comply, a new label must be used, stating the original refrigerant i. Hvac refrigerant pt includes pressure and temperature charts, bubble point, dew point, ac refrigeration color codes and their corresponding info. These values were confirmed with property data sheets provided by the refrigerant manufacturers.
Arpus is a software for calculating temperature and pressure of agc fluorocarbon products. If you are having trouble downloading this software, or are getting an error message, you may have a firewall issue. R407c has the closest property match to r22 in an air conditioning retrofit project compared to other blends on the market. Keep additional refrigerant on hand for quick replacement, to limit downtime.
Spreadsheet calculations of thermodynamic properties larry caretto, david mcdaniel, tom mincer csu, northridgeus air force academycsu, northridge. R407a is a mixture of gasses used as a refrigerant. Cannot be added to r22 unless fully evacuated and recharged with 407c. R407a is a blend of nonozone depleting hfc refrigerants r32, r125 and r4a, it has similar properties and characteristics to r22 in some applications but should not be confused with r407c. Refrigerant prices are subject to change without notice. It is advisable that the system operating conditions be recorded with the r22 still in the system. Green in of hg vacuum black psig saturated vapor calculate superheat bold psig saturated liquid calculate supercooling for 5,000 ft.
With a gwp of just 97, it provides a longterm refrigerant solution. Freon 407a r 407a refrigerant is a reliable, stable, and nonflammable option for low and mediumtemperature refrigeration systems. In preparation for this phaseout, chemours offers freon 407c and freon 407a, environmentally acceptable alternatives to r22. R407a has the closest property match to r22 in a low temperature retrofit project compared to other blends on. Lake placid olympic ice arena from 1980 miracle on ice hockey match converts from r22 to genetron performax lt r407f. Goodwin10 developed a set of spreadsheet calculations of thermodynamic properties. R407a refrigerant 30lb cylinders to 1 ton cylinders agas in the. Spreadsheet calculations of thermodynamic properties. A blend of r32, r125, and r4a that has very similar properties to r22 in air conditioning equipment. Refrigerant retrofit guide the engineering mindset.
Freon 407c and 407a properties, uses, storage, and handling. Hvac refrigerant pt is designed for professionals in the air conditioning industry. Genetron properties suite provides results in tabulated form. R4a sst5, sct45, sc3 r404a sst25, sct40, sc3 r22 sst7, sct50, sc3 r410a sst7, sct50, sc3 gwp based on ar5.
An ability to be topped off after a leak, multiple times, with minimal impact on system performance. In this refrigerant retrofit guide we will be looking at how to retrofit a refrigeration system with the new, environmentally friendly, refrigerants that are coming into the market due to the changes to laws and regulations on the types of refrigerants that can be used. Genetron performax retrofit guidelines english sept. The vapors are heavier than air and can cause asphyxiation. Freon 407a r407a refrigerant is a reliable, stable, and nonflammable option for low and mediumtemperature refrigeration systems. Additionally, r 407a offers similar performance to r404a in new medium and low temperature refrigeration systems. R507a has properties that match those of r502 closely, making it a good refrigerant for some medium and most low temperature refrigeration applications. In addition, the new refrigerant r407f added to the system must be stated, and a logbook must be kept and updated to verify the amount of r407f added to the r404a system.
Similar cooling capacity, energy efficiency, and pressures as r22 in systems. Simulate your system with the right refrigerant and export the results to excel. This nonozone depleting, hydrofluorocarbon hfc refrigerant is a replacement for r22 and provides a lower global warming potential gwp alternative to r404a and r507. Technical r407a data sheet features and uses of r407a r407a is a ternary mixture nonazeotropic composed of r32, r125 and r4a. R407a refrigerant klea 407a r407a refrigerant is an energy efficient, low gwp refrigerant designed for use in medium and low temperature supermarket applications. After download and installation, everyone in the air conditioning and refrigeration industries can calculate saturation.
The system should be electrically shut off and the refrigerant properly removed from the system. R404a is a pseudoazeotropic mixed refrigerant composed of the three ingredients r125, r4a, and r143a, and was developed as a substitute refrigerant for r502 and r22, used in commercial refrigerator equipment for low and medium temperature ranges. Understand refrigerant properties, and download support materials, case studies and videos from the city. Digital toolset assists with selection, implementation of. Pioneering successful testing of r407f as r404a replacement. Industrial r22 retrofit using genetron performax lt eurofrigor, february 2014. Daikin creard r407h is a new, costeffective, high efficiency, lower gwp refrigerant gas for refrigeration contractors and distributors. Super u adopts genetron performax for its refrigeration system climalife, july 2011. General property information of freon 407c, freon 407a, and hcfc22. Dupont refrigerants vision we will use our science and technology, market knowledge and global reach to provide sustainable materials and solutions to enhance personal comfort, enable preservation of perishable items and improve industrial processing.
Refrigerants r407a and r407c are mixtures of difluoromethane ch. It can also be used in medium temp r22 refrigeration systems. Common applications include supermarket refrigeration, refrigerated transports, and food. Forane 407a r 407a is a nonozone depleting, zeotropic blend of hfc refrigerants r32, r125, and r4a. R407f is a zeotropic hfc refrigerant blend, which is rated a1 by ashrae lowest levels of toxicity and flammability, having zero ozone depletion potential and a global warming potential of 1825. Customers can simulate their systems with this software, size line for all refrigerants, build custom pressure temperature charts and more. It is typically used for refrigeration applications and offers a lower gwp alternative to r404a.
Forane 407c r407c is a nonozone depleting, zeotropic blend of hfc refrigerants r32, r125, and r4a, and has been formulated to match the properties of r22 closely in air conditioning applications. Air2 1 isopentane 14 refrigerant 28 ammonia 2 lithium 15 refrigerant 14 29. Forane 407a is a lower gwp refrigerant, designed for the replacement of r404a and r507a retrofit and new equipment in medium and low temperature refrigeration. Opteon xp40 r449a refrigerant is an environmentally sustainable, nonozone depleting refrigerant offering a low global warming potential gwp. R404a retrofit using genetron performax lt tewis, january 2014. It is an ideal retrofit solution for many existing r404a systems, offering a substantially lower carbon footprint due to its lower gwp, and improved energy efficiency.
Forane 407c can be used to replace r22 in new or existing r22 residential and commercial air conditioning systems as well as nonflooded evaporator chillers. This refrigerant provides improved performance versus r404a and r507 in new and existing. The heat pump was extensively instrumented, and the air enthalpy and refrigerant mass flow rate methods. The refrigerant thermodynamic properties of all the test refrigerants were determined from a commercially available software program refprop v4. Freon 407c and freon 407a refrigerant descriptions freon 407c and freon 407a are nonozone depleting. R407c is a nonazeotropic mixed refrigerant composed of the three ingredients r32, r125, and r4a, and was developed as a substitute refrigerant for r22, used in applications such as air conditioning equipment and chiller equipment for medium temperature ranges. Common applications include supermarket refrigeration, refrigerated transports, and food processing. Refrigerants r407c and r407a properties, uses, storage. You can watch a video on this subject at the bottom of this article. Genetron properties refrigerants modeling software. R404a products and service information agc chemicals.
Opteon xl40 refrigerant is an a2l low global warming potential gwp hydrofluoroolefin hfo based refrigerant that enables much larger charge sizes than other, more highly flammable refrigerants. Although one of its components, r32, is flammable, the overall mixture composition is formulated so that. This will provide the base data for comparison when the system is put back into operation with the r407c. Opteon xp40 r449a has been successfully used in a wide range of commercial refrigeration applications. R407c can be used to completely replace r22 refrigerant in new or existing r22 residential and commercial air conditioning systems as well as nonflooded evaporator chillers. Monitor system with particular attention to lubrication cleanliness. It is chemically stable, has good thermodynamic properties, low environmental impact and very low toxicity. Explore all our product offerings in the honeywell city. R407a is an hfc blend that is suitable for use in low and medium temperature refrigeration applications, such as those used in commercial refrigeration. Find answers to your refrigerants questions with honeywell refrigerants suite of apps, calculators, and software. It is a zeotropic blend of difluoromethane hfc32, pentafluoroethane hfc125 and 1,1,1,2tetrafluoroethane hfc4a. Opteon xl40 r454a is a nonozone depleting refrigerant providing an optimal balance of properties in applications that use r404a and r22. Freon refrigerants are accepted as part of this program.
Refrigerant management track equipment, inventory, and maintenance across the organization dakotas refrigerant management application helps organizations comply with epa record keeping requirements by tracking usage, leak rates, exceedances, and. Compare performance of multiple refrigerants learn the line sizing and many. This app provides convenient access to refrigerant pressuretemper. Higher gwp refrigerants reduce total available quota volume so. R404a retrofit using genetron performax lt tewis, january 2014, spanish. R407c products and service information agc chemicals.
For example, hcfc22 is an acceptable substitute for r502 in industrial. Import of hfcs in australia is limited by a quota system relative to the gwp of the imported refrigerants. Freon 407c has been a popular r22 replacement because of its properties, which include. Close performance match with slightly higher operating pressures. The mass fractions %wt of the components in each refrigerant are. Freon 407a r407a, a nonozonedepleting, hfc refrigerant, can be used as a replacement for r22 in low and mediumtemperature refrigeration systems. Freon 407c r407c refrigerant r22 retrofit refrigerant.
R407a is an hfc blend that is suitable for use in low and medium temperature refrigeration applications, such as those used in commercial refrigeration, and is an ideal retrofit solution for many existing r404a systems. It is shipped as a liquid under its own vapor pressure. Relying on proven traditional chemistry, it is built as a replacement for r404a, r507a, r407af, r22 and other high gwp refrigerant blends in medium temperature and low temperature refrigeration applications. Forane 407a has close thermodynamic properties to r404a and r507 see following. R407a was developed as a close match to r22s capacities and flow rates, making it well suited as an energy efficient retrofit for r22 in medium and low temperature refrigeration systems for supermarket. Compositions of refrigerant blends significant new. Learn more about the chemours refrigerant expert cre software.
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