This blend has properties very similar to r22 in air conditioning equipment and in medium temperature refrigeration. Calculation of thermodynamic properties of r407c and r410a by. Opteon refrigerants for air conditioning, refrigeration, and heat pump applications have the optimal balance of performance, environmental sustainability, safety, and cost. R407c is completely immiscible with mineral oil and will require a complete oil change to poe when retrofitting an r22 installation. Comparison of environmental impacts and physical properties of refrigerants ko matsunaga executive summary even before the invention of refrigeration, people wanted to improve their life by using ice to provide cold drinks and preserve food. Technical r 407c data sheet features and uses of r 407c r407c is a ternary mixture nonazeotropic composed of r32, r125 and r4a. R407c r407c is an hfc blend designed to have similar properties to r22 in air conditioning systems. Part 4, pros and cons of r407c refrigerant youtube. Freon 407c refrigerant 25 equations for property estimation metric units curves have been fitted to the measured data to obtain the following equations for estimation of freon 407c properties within the ranges specified. It is advisable that the system operating conditions be recorded with the r22 still in the system. The cop of r407c was similar to r22 being maximum for r290 and minimum for r410a. R 407c refrigerant has been formulated as a good match to the existing hcfc refrigerant r22 for use in air conditioning, chilling and refrigeration applications and was the first of the r22 alternatives to be used on a commercial scale.
Pseudopure fluid equations of state for the refrigerant blends r410a, r404a,r507a, and r407c. It can also be used in medium temp r22 refrigeration systems. If the actual refrigerant temperature is 98f, the liquid is subcooled 10f. This figure compares the results generated from coolprop and those generated from refprop. 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. Identification of the substancemixture and of the companyundertaking product identifier. Although one of its components, r32, is flammable, the overall mixture composition is formulated so that. The potential for a single molecule of the refrigerant to destroy the ozone layer.
In this series from chadwell supply and chadwell universitys vann flippen, walk through the refrigerants available to replace r22 and understand the pros and cons to find the best option for your. R 407c is completely immiscible with mineral oil and will require a complete oil change to poe when retrofitting an r22 installation. R407c has thermodynamic properties that make it look alike replacement for r22, with compressor capacities and system pressures temperatures that are similar. Today the hfc r404a is one of the most commonly used refrigerants in the united states and in the world.
R407c, refrigerant, refrigeration johnstone supply. 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. Freon 407c and freon 407a are nonozone depleting blends of three hydrofluorocarbon hfc refrigerants. Reasonable performance match to r22 in medium temperature refrigeration. R 407c 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.
Wash affcte ed area immediately with lare g amounts of soap or water for 15 minutes. R407c also has properties including pressure, capacity, and efficiency that are extremely similar to those of r22. Not recommended for use in chillers with a flooded evaporator. Pdf experimental evaluation of r410a, r407c and r4a.
R407c is a mixture of hydrofluorocarbons used as a refrigerant. Genetron refrigerant 407c the most efficient r22 retrofit. Applications include residential and commercial air conditioning systems, nonflooded evaporator chillers, and some commercial refrigeration systems. The thermodynamic analysis of eight selected refrigerants is carried out using the simulation software cool pack version 1. For full table with properties and applications rotate the screen. A wide variety of r407c refrigerant for sale options are available to you, such as grade standard.
It is chemically stable, has good thermodynamic properties, low environmental impact and very low toxicity. May 28, 2018 b r4a and r407c refrigerant properties. Freon 407c exhibits performance characteristics similar. General property information of freon 407c, freon 407a, and hcfc22. Check with the manufacturer of any pressure regulators and pilot operated. Refrigerant products r407c hfc national refrigerants, inc. Close performance match with slightly higher operating pressures. However r407c and r410a are known as greenhouse gases and are partly responsible for the greenhouse effect on the earth. Systems using r 407c may have a higher system pressure drop than with r22. Difluoromethane serves to provide the heat capacity, pentafluoroethane decreases flammability, tetrafluoroethane reduces pressure. R4a has relatively low pressure and therefore about 50% larger compressor displacement is required when compared to r22. In 2000 international refrigeration conferences at. R407c refrigerant has been formulated as a good match to the existing hcfc refrigerant r22 for use in air conditioning, chilling and refrigeration applications and was the first of the r22 alternatives to be used on a commercial scale.
Since r407c does not have mutual solubility with substances such as mineral oils or alkyl benzene oils conventionally used in r22, there is a need to either use compound oils having mutual solubility with substances such as polyol ester oils, or to take special measures. Genetron 407c may be used to replace hcfc22 in existing mediumtemperature commercial refrigeration systems, including supermarket display cases and reachin coolers. Freon 407c r407c refrigerant r22 retrofit refrigerant. Compare performance of multiple refrigerants learn the line sizing and many. Close match to r22 properties used in high temperature systems like unitary ac not for use in flooded evaporator systems for use with poe oil to ensure miscibility r407c refrigerant, 115 lb. Technical r407c data sheet refrigerant gases and products. It exhibits performance characteristics similar to r22. The major difference of r407c is that it has a temperature glide about 6c 1 0. R407c has the closest property match to r22 in an air conditioning retrofit project compared to other blends on. R407c products and service information agc chemicals.
R407c and r410a r407c is a nonozone depleting blend of three hfc refrigerants r32, r125, r4a and was designed to match as closely as possible r22 pressure and performance to allow a smooth transition from r22 to r407c. The purpose of this post is to provide a brief overview of refrigerants r407c and r410a, describe their characteristics and compare their environmental impact, regulatory compliance and resulting system efficiency it is of relevance as many of the marine air conditioning manufacturers such as dometic, marine air, cruise air, webasto, veco and condaria use r410a and aquaair use r407c. R407c products and service information agc chemicals company. Genetron 407c is a nonozonedepleting hfcbased refrigerant for replacement of hcfc22 in residential and light commercial air conditioning systems. Freon r600 refrigerant pressure temperature chart r600 refrigerant pressure temperature chart. It is a zeotropic blend of r32, r125, and r4a 204040. Lower capacity in low temperature refrigeration systems. Simulate your system with the right refrigerant and export the results to excel. R 407c has the closest property match to r22 in an air conditioning retrofit project compared to other blends on the market. Commonly used in large commercial refrigerated air conditioning systems. It is also used in medium temperature refrigeration systems.
Close match to r22 properties used in high temperature systems like unitary ac not for use in flooded evaporator systems for use with poe oil to ensure miscibility. Arpus is a software for calculating temperature and pressure of agc fluorocarbon products. Refrigerants r407c and r407a properties, uses, storage. New tables of the thermodynamic properties of dupont.
Similar cooling capacity, energy efficiency, and pressures as r22 in systems an ability to be topped off after a leak, multiple times, with minimal impact on system performance safety. A blend of r32, r125, and r4a that has very similar properties to r22 in air conditioning equipment. 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. Since r407c does not have mutual solubility with substances such as mineral oils or alkyl benzene oils conventionally used in r22, there is a need to either use compound oils having mutual solubility with substances such as polyol ester oils, or to take special measures to return oil to compressors. A comparative study of the performance characteristics of. These refrigerants are primarily used for air conditioning and heat pumps and have replaced r22 in many applications. If possible, the refrigerant must be odorless, but easy detection in the air is desirable. Freon refrigerants are accepted as part of this program. From the r 407c chart, 250 psig is 108f saturated liquid temperature. Freon 407c has been a popular r22 replacement because of its properties, which include. This will provide the base data for comparison when the system is put back into operation with the r 407c. R 407c is a zeroozonedepletion blend of hfc refrigerants r32, r125, and r4a.
R407c is a blend of r32, r125 and r4a refrigerants, whereas r410a uses r32 and r125, which enables it to operate at these higher pressures. Operating pressuretemperature in the evaporator, runtime capacity, and flow characteristics through tubing and valves make this blend the closest property match to r22 for retrofitting at ac conditions. R407c refrigerant 30lb cylinders to 1 ton cylinders agas in the. You can find it most commercial refrigeratorsfreezers, in vending and ice machines, in refrigerated transport, and in specific industrial applications. All refrigerants use r11 as a datum reference where r11 has an odp 1. Remove contaminated clothing and shoes, and wash before reusing. Opteon refrigerants low global warming potential refrigerants for air conditioning and refrigeration. It has been developed to approximate the properties of r22, and will be used for many air conditioning and refrigeration applications in either new equipment or in retrofitting existing r22 installations. It has a capacity comparable to hcfc22, making it easier to use in existing. These revealed that as the ambient temperature increased, the cop values got decreased for all the refrigerants. Mixing 407c and r22 so i am at the parts house chatting with other techs about the price r22 and i come to find out that there are some techs that are no longer buying r22 and just adding 407c to r22 systems that are low on charged. Pseudopure fluid equations of state for the refrigerant blends r410a, r 404a,r507a, and r407c. Viscosity of mixed refrigerants r404a, r407c, r410a, and r507a. R407cpsltt r407cpsvtt r407c t sl p p r407c t s vp p r407cdsltt r407cdsvtt.
R404a products and service information agc chemicals. Genetron 407c a longterm, nonozone depleting replacement for r22 in various airconditioning applications as well as in positive displacement refrigeration systems. In particular, the influence of temperature on either thermodynamic property of the hfcrefrigerant mixtures here under consideration is established, together with. Suitable for retrofit and original equipment usage. R 407c is a mixture of hydrofluorocarbons used as a refrigerant. R407c r717 r410a r507a r600 r23 r290 r142b r406a r409a700,810,880,920,740,720,890,65. In the last two centuries, human ingenuity made it possible to control fully. It is a zeotropic blend of difluoromethane r32, pentafluoroethane r125, and 1,1,1,2tetrafluoroethane r4a. The primary disadvantage of r407c is the large temperature glide due to the blend of the specific refrigerants.
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