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SYSTEM AND METHOD FOR RETROFITTING A REFRIGERATION SYSTEM FROM HCFC TO HFC REFRIGERANT

20190178544 ยท 2019-06-13

    Inventors

    Cpc classification

    International classification

    Abstract

    A system and method for retrofitting a refrigeration system containing an HCFC refrigerant and a compatible lubricant, with an HFC refrigerant, comprising providing a transport container containing a mixture of a miscible lubricant and the HFC refrigerant, removing the HCFC refrigerant from the refrigeration system while maintaining at least a portion of a lubricant immiscible with the HFC refrigerant, and charging the refrigeration system with the mixture. The polyol ester lubricant may be present in a range exceeding about 5-15% by weight, e.g., 8%.

    Claims

    1. A method of retrofitting a refrigeration system from an HCFC refrigerant and a mineral oil or alkyl benzene lubricant to a refrigerant consisting essentially of an HFC, comprising: removing the HCFC refrigerant while retaining the mineral oil or alkyl benzene lubricant in the refrigeration system; and charging the refrigeration system with a mixture consisting essentially of the HFC and a polyol ester lubricant in an amount of between 5% and 20% by weight of the HFC, substantially independent of an amount of mineral oil or alkyl benzene lubricant remaining in the refrigeration system.

    2. The method according to claim 1, wherein the HFC and the polyol ester lubricant in an amount of between 5% and 20% by weight of the HFC are premixed at a site remote from the refrigeration system, prior to removal of the HCFC, further comprising transporting the premixed HFC and the polyol ester lubricant in an amount of between 5% and 20% by weight of the HFC in a DOT compliant transport container.

    3. The method according to claim 2, wherein the premixed HFC and the polyol ester lubricant in an amount of between 5% and 20% by weight of the HFC in a DOT compliant transport container comprises 8% by weight polyol ester lubricant in HFC, in a DOT-39 transport container.

    4. The method according to claim 1, wherein said removing and charging are performed substantially without measuring an amount or concentration of the mineral oil or alkyl benzene lubricant.

    5. The method according to claim 1, wherein the HFC consists essentially of R-407C.

    6. The method according to claim 1, wherein the HFC comprises R-125.

    7. The method according to claim 1, wherein the HFC comprises R-134a.

    8. The method according to claim 1, wherein the HFC comprises R-32.

    9. The method according to claim 1, wherein the HFC comprises R-143a.

    10. The method according to claim 1, wherein the HCFC comprises R-22 and the HFC consists essentially of R-407C.

    11. A method for retrofitting a hermetically sealed refrigeration system from an HCFC refrigerant with a mineral oil or alkyl benzene lubricant, to an HFC refrigerant with a polyol ester lubricant-mineral oil or alkyl benzene lubricant mixture, comprising: evacuating the HCFC refrigerant from the hermetically sealed refrigeration system substatually without removing the mineral oil or alkyl benzene lubricant; transporting a premixture of the HFC refrigerant and a polyol ester lubricant in a container suitable for vehicular transportation according to DOT regulation; and charging the hermetically sealed refrigeration system having the unremoved mineral oil or alkyl benzene lubricant with the premixture of the HFC refrigerant and a polyol ester lubricant.

    12. The method according to claim 11, wherein the HCFC comprises R-22, and the HFC consists essentially of R-407C.

    13. The method according to claim 11, wherein the polyol ester is provided in an amount of 5% to 20% by weight of the HFC in the container.

    14. The method according to claim 11, wherein the polyol ester is provided in an amount of 8% by weight of the HFC in the container, and the HFC in the container consists essentially of R-407C.

    15. The method according to claim 11, wherein the hermetically sealed refrigeration system after charging with the premixture of the HFC refrigerant and a polyol ester lubricant has a concentration of mixed lubricant of 15-32% by weight of the HFC.

    16. The method according to claim 11, wherein the container is DOT-39 compliant.

    17. A DOT compliant refrigerant transport container for retrofitting a refrigeration system from an HCFC refrigerant compatible with a mineral oil or alkyl benzene lubricant to an HFC refrigerant compatible with a polyol ester lubricant, comprising: the DOT compliant refrigerant transport container; a refrigerant consisting essentially of at least two of R-32, R-125, R-134a, and R143a; and a polyol ester lubricant in an amount of 5-15% by weight of the refrigerant.

    18. The DOT compliant refrigerant transport container according to claim 17, comprising a DOT-39 compliant container, 7.5-8.5% by weight polyol ester lubricant by weight of the HFC.

    19. The DOT compliant refrigerant transport container according to claim 17, wherein the refrigerant consists essentially of R-407C.

    20. The DOT compliant refrigerant transport container according to claim 17, wherein the DOT compliant refrigerant transport container is a DOT-39 compliant container having a capacity of 30 pounds, filled with about 2.4 pounds of polyol ester lubricant and about 27.6 pounds of the HFC refrigerant.

    Description

    BRIEF DESCRIPTION OF THE DRAWINGS

    [0076] FIG. 1 shows a flowchart of a method according to the present invention.

    [0077] FIG. 2 shows a schematic diagram of the refrigeration system, after an HCFC refrigerant is removed, and while an HFC refrigerant and POE lubricant is being charged.

    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

    [0078] FIG. 1 shows a flowchart of a method according to the present invention. A refrigerant retrofit kit is provided, having within a transportable container, a mixture of a refrigerant and a compatible POE lubricant. The refrigerant is typically an HFC refrigerant. The HCFC refrigerant is evacuated from a refrigeration system to be retrofit, and a portion of the existing lubricant, which is a mineral oil or alkyl benzene lubricant, is removed through the charge port of the refrigeration system, without disassembly of the system. A portion of the mineral oil or alkyl benzene lubricant remains in the refrigeration system. The refrigeration system is then charged with the mixture of the refrigerant and the compatible POE lubricant through the charge port.

    [0079] As shown in the schematic representation in FIG. 2, the refrigeration system includes a compressor, condenser and evaporator, as well as a charge port. A reservoir pools liquid refrigerant, as well as lubricants found within the system. After the HCFC refrigerant is removed from the system, a portion of the mineral oil or alkyl benzene lubricant remains in the system. During charging, the new refrigerant, typically an HFC, with a compatible POE lubricant, is drawn into the refrigeration system through the charge port, resulting in a mixed lubricant containing mineral oil or alkyl benzene lubricant and POE.

    Example 1

    [0080] A test was conducted of a residential air conditioning unit to determine the results of retrofitting an R-22 system with R-407C. In the test, the R-22 system, which was design and manufactured optimally for R-22, and used a mineral oil lubricant, was retrofitted with R-407C.

    [0081] Instead of removing all of the mineral oil in the system, and replacing it with a defined amount of POE oil, which is required for R-407C, the R-22 was removed, and the residual mineral oil allowed to remain.

    [0082] The evacuated system was recharged with a premixed quantity of R-407C with 8% by weight POE oil. Since R-407C is charged in the liquid phase, all of the oil, and most of the R-407C was transferred to the system from a transport container, e.g., DOT-39. The final POE concentration is estimated at 10-15% of the total oil in the system.

    [0083] Prior to retrofitting, system was run for 13 hours over two days with the R-22 to collect the baseline data. The R-22 was then evacuated, and charged with R-407C to about 85% of the R-22 charge. The retrofitted refrigeration system with R-407C was then run for 91 hours.

    [0084] The operating temperatures for R-22 (>86F and <86F) and R-407C (<86F) were not the same, so performance measurements are not directly comparable, but the results support a conclusion that the R-407C does not degrade system efficiency performance.

    [0085] Therefore, despite the various unknowns, including the amount of mineral oil remaining in the system, migration characteristics of the mixed lubricants around the system, the impact of the various lubricant phases on compressor lubrication, the operation of the system with R-407C was improved over the R-22 implementation.

    Comparative Example 1

    [0086] See: www.honeywell-refrigerants.com/india/?document=guide-to-retrofitting-ac-systems-from-r-22-to-r-422d-or-r-407c&download=1;

    www.honeywell.com/sites/servlet/com.merx.npoint.servlets.DocumentServlet?docid=DB0284B 88-942E-BOAS-4028-CAFB85BB40AB, which are expressly incorporated herein by reference.

    Comparative Example 2

    [0087] See:

    www2.dupont.com/Refrigerants/en_US/assets/downloads/h70004_Suva407C_retrofit_guide.pdf, which is expressly incorporated herein by reference.

    Comparative Example 3

    [0088] See: opi.emersonclimate.com/CP1D/GRAPHICS/Types/AEB/95-14.pdf, which is expressly incorporated herein by reference.

    Comparative Example 4

    [0089] See: www.refrigerants.com/pdf/Nat-R407Broch.pdf, which is expressly incorporated herein by reference.

    Comparative Example 5

    [0090] See: neilorme.com/Tecumseh%20Guidelines%20R407c.shtml, which is expressly incorporated herein by reference.

    Comparative Example 6

    [0091] See: www.bristolcompressors.com/files/1313/5464/2815/application_bulletin_124.pdf, which is expressly incorporated herein by reference.

    Comparative Example 7

    [0092] See: americas.forane.com/export/sites/forane-americas/.content/medias/downloads/literature/forane-technical-digest.pdf, which is expressly incorporated herein by reference.

    [0093] Although the present system and/or approach has been described with respect to at least one illustrative example, many variations and modifications will become apparent to those skilled in the art upon reading the specification. It is therefore the intention that the appended claims be interpreted as broadly as possible in view of the related art to include all such variations and modifications.

    TABLE-US-00001 TABLE 1 CAS registry ASHRAE number/Blend Type Number IUPAC Chemical Name Molecular Formula Name PCC R-10 Carbon tetrachloride CCl.sub.4 56-23-5 (Tetrachloromethane) CFC R-11 Trichlorofluoromethane CCl.sub.3F 75-69-4 CFC R-12 Dichlorodifluoromethane CCl.sub.2F.sub.2 75-71-8 H R-12B1 Bromochlorodifluoromethane CBrClF.sub.2 or CF.sub.2ClBr 353-59-3 H R-12B2 Dibromodifluoromethane CBr.sub.2F.sub.2 75-61-6 CFC R-13 Chlorotrifluoromethane CClF.sub.3 75-72-9 H R-13B1 Bromotrifluoromethane CF.sub.3Br 75-63-8 PFC R-14 Tetrafluoromethane CF.sub.4 75-73-0 HCC R-20 Chloroform (Trichloromethane) CHCl.sub.3 67-66-3 HCFC R-21 Dichlorofluoromethane CHFCl.sub.2 75-43-4 HCFC R-22 Chlorodifluoromethane CHClF.sub.2 75-45-6 H R-22B1 Bromodifluoromethane CHBrF.sub.2 or CHF.sub.2Br 1511-62-2 HFC R-23 Trifluoromethane (Fluoroform) CHF.sub.3 75-46-7 HCC R-30 Dichloromethane (Methylene CH.sub.2Cl.sub.2 75-09-2 chloride) HCFC R-31 Chlorofluoromethane CH.sub.2FCl 593-70-4 HFC R-32 Difluoromethane CH.sub.2F.sub.2 75-10-5 HCC R-40 Chloromethane CH.sub.3Cl 74-87-3 HFC R-41 Fluoromethane CH.sub.3F 593-53-3 HC R-50 Methane CH.sub.4 74-82-8 PCC R-110 Hexachloroethane C.sub.2Cl.sub.6 67-72-1 CFC R-111 Pentachlorofluoroethane C.sub.2FCl.sub.5 354-56-3 CFC R-112 1,1,2,2-Tetrachloro-1,2- C.sub.2F.sub.2Cl.sub.4 76-12-0 difluoroethane CFC R-112a 1,1,1,2-Tetrachloro-2,2- C.sub.2F.sub.2Cl.sub.4 76-11-9 difluoroethane CFC R-113 1,1,2-Trichlorotrifluoroethane C.sub.2F.sub.3Cl.sub.3 76-13-1 CFC R-113a 1,1,1-Trichlorotrifluoroethane C.sub.2F.sub.3Cl.sub.3 354-58-5 CFC R-114 1,2-Dichlorotetrafluoroethane C.sub.2F.sub.4Cl.sub.2 76-14-2 CFC R-114a 1,1-Dichlorotetrafluoroethane C.sub.2F.sub.4Cl.sub.2 374-07-2 H R-114B2 1,2-Dibromotetrafluoroethane C.sub.2F.sub.4Br.sub.2 124-73-2 CFC R-115 Chloropentafluoroethane C.sub.2F.sub.5Cl 76-15-3 PFC R-116 Hexafluoroethane C.sub.2F.sub.6 76-16-4 HCC R-120 Pentachloroethane C.sub.2HCl.sub.5 76-01-7 HCFC R-121 1,1,2,2-Tetrachloro-1-fluoroethane C.sub.2HFCl.sub.4 354-14-3 HCFC R-121a 1,1,1,2-Tetrachloro-2-fluoroethane C.sub.2HFCl.sub.4 354-11-0 HCFC R-122 1,1,2-Trichloro-2,2-difluoroethane C.sub.2HF.sub.2Cl.sub.3 354-21-2 HCFC R-122a 1,1,2-Trichloro-1,2-difluoroethane C.sub.2HF.sub.2Cl.sub.3 354-15-4 HCFC R-122b 1,1,1-Trichloro-2,2-difluoroethane C.sub.2HF.sub.2Cl.sub.3 354-12-1 HCFC R-123 2,2-Dichloro-1,1,1-trifluoroethane C.sub.2HF.sub.3Cl.sub.2 306-83-2 HCFC R-123a 1,2-Dichloro-1,1,2-trifluoroethane C.sub.2HF.sub.3Cl.sub.2 354-23-4 HCFC R-123b 1,1-Dichloro-1,2,2-trifluoroethane C.sub.2HF.sub.3Cl.sub.2 812-04-4 HCFC R-124 2-Chloro-1,1,1,2-tetrafluoroethane C.sub.2HF.sub.4Cl 2837-89-0 HCFC R-124a 1-Chloro-1,1,2,2-tetrafluoroethane C.sub.2HF.sub.4Cl 354-25-6 HFC R-125 Pentafluoroethane C.sub.2HF.sub.5 354-33-6 HFC R-E125 Pentafluorodimethyl ether C.sub.2HF.sub.5O 3822-68-2 HCC R-130 1,1,2,2-Tetrachloroethane C.sub.2H.sub.2Cl.sub.4 79-34-5 HCC R-130a 1,1,1,2-Tetrachloroethane C.sub.2H.sub.2Cl.sub.4 630-20-6 HCFC R-131 1,1,2-Trichloro-2-fluoroethane C.sub.2H.sub.2FCl.sub.3 359-28-4 HCFC R-131a 1,1,2-Trichloro-1-fluoroethane C.sub.2H.sub.2FCl.sub.3 811-95-0 HCFC R-131b 1,1,1-Trichloro-2-fluoroethane C.sub.2H.sub.2FCl.sub.3 2366-36-1 HCFC R-132 Dichlorodifluoroethane C.sub.2H.sub.2F.sub.2Cl.sub.2 25915-78-0 HCFC R-132a 1,1-Dichloro-2,2-difluoroethane C.sub.2H.sub.2F.sub.2Cl.sub.2 471-43-2 HCFC R-132b 1,2-Dichloro-1,1-difluoroethane C.sub.2H.sub.2F.sub.2Cl.sub.2 1649-08-7 HCFC R-132c 1,1-Dichloro-1,2-difluoroethane C.sub.2H.sub.2F.sub.2Cl.sub.2 1842-05-3 H R-132bB2 1,2-Dibromo-1,1-difluoroethane C.sub.2H.sub.2Br.sub.2F.sub.2 75-82-1 HCFC R-133 1-Chloro-1,2,2-Trifluoroethane C.sub.2H.sub.2F.sub.3Cl 431-07-2 HCFC R-133a 1-Chloro-2,2,2-Trifluoroethane C.sub.2H.sub.2F.sub.3Cl 75-88-7 HCFC R-133b 1-Chloro-1,1,2-Trifluoroethane C.sub.2H.sub.2F.sub.3Cl 421-04-5 HFC R-134 1,1,2,2-Tetrafluoroethane C.sub.2H.sub.2F.sub.4 359-35-3 HFC R-134a 1,1,1,2-Tetrafluoroethane C.sub.2H.sub.2F.sub.4 811-97-2 HFC R-E134 Bis(difluoromethyl)ether C.sub.2H.sub.2F.sub.4O 1691-17-4 HCC R-140 1,1,2-Trichloroethane C.sub.2H.sub.3Cl.sub.3 79-00-5 HCC R-140a 1,1,1-Trichloroethane (Methyl C.sub.2H.sub.3Cl.sub.3 or CH.sub.3CCl.sub.3 71-55-6 chloroform) HCFC R-141 1,2-Dichloro-1-fluoroethane C.sub.2H.sub.3FCl.sub.2 430-57-9 H R-141B2 1,2-Dibromo-1-fluoroethane C.sub.2H.sub.3Br.sub.2F 358-97-4 HCFC R-141a 1,1-Dichloro-2-fluoroethane C.sub.2H.sub.3FCl.sub.2 430-53-5 HCFC R-141b 1,1-Dichloro-1-fluoroethane C.sub.2H.sub.3FCl.sub.2 1717-00-6 HCFC R-142 Chlorodifluoroethane C.sub.2H.sub.3F.sub.2Cl 25497-29-4 HCFC R-142a 1-Chloro-1,2-difluoroethane C.sub.2H.sub.3F.sub.2Cl 25497-29-4 HCFC R-142b 1-Chloro-1,1-difluoroethane C.sub.2H.sub.3F.sub.2Cl 75-68-3 HFC R-143 1,1,2-Trifluoroethane C.sub.2H.sub.3F.sub.3 430-66-0 HFC R-143a 1,1,1-Trifluoroethane C.sub.2H.sub.3F.sub.3 420-46-2 HFC R-143m Methyl trifluoromethyl ether C.sub.2H.sub.3F.sub.3O 421-14-7 HFC R-E143a 2,2,2-Trifluoroethyl methyl ether C.sub.3H.sub.5F.sub.3O 460-43-5 HCC R-150 1,2-Dichloroethane C.sub.2H.sub.4Cl.sub.2 107-06-2 HCC R-150a 1,1-Dichloroethane C.sub.2H.sub.4Cl.sub.2 75-34-3 HCFC R-151 Chlorofluoroethane C.sub.2H.sub.4ClF 110587-14-9 HCFC R-151a 1-Chloro-1-fluoroethane C.sub.2H.sub.4ClF 1615-75-4 HFC R-152 1,2-Difluoroethane C.sub.2H.sub.4F.sub.2 624-72-6 HFC R-152a 1,1-Difluoroethane C.sub.2H.sub.4F.sub.2 75-37-6 HCC R-160 Chloroethane (ethyl chloride) C.sub.2H.sub.5Cl 75-00-3 HFC R-161 Fluoroethane C.sub.2H.sub.5F 353-36-6 HC R-170 Ethane C.sub.2H.sub.6 or CH.sub.3CH.sub.3 74-84-0 HC R-E170 Dimethyl ether CH.sub.3OCH.sub.3 115-10-6 CFC R-211 1,1,1,2,2,3,3-Heptachloro-3- C.sub.3FCl.sub.7 422-78-6 fluoropropane CFC R-212 Hexachlorodifluoropropane C.sub.3F.sub.2Cl.sub.6 76546-99-3 CFC R-213 1,1,1,3,3-Pentachloro-2,2,3- C.sub.3F.sub.3Cl.sub.5 2354-06-5 trifluoropropane CFC R-214 1,2,2,3-Tetrachloro-1,1,3,3- C.sub.3F.sub.4Cl.sub.4 2268-46-4 tetrafluoropropane CFC R-215 1,1,1-Trichloro-2,2,3,3,3- C.sub.3F.sub.5Cl.sub.3 4259-43-2 pentafluoropropane CFC R-216 1,2-Dichloro-1,1,2,3,3,3- C.sub.3F.sub.6Cl.sub.2 661-97-2 hexafluoropropane CFC R-216ca 1,3-Dichloro-1,1,2,2,3,3- C.sub.3F.sub.6Cl.sub.2 662-01-1 hexafluoropropane CFC R-217 1-Chloro-1,1,2,2,3,3,3- C.sub.3F.sub.7Cl 422-86-6 heptafluoropropane CFC R-217ba 2-Chloro-1,1,1,2,3,3,3- C.sub.3F.sub.7Cl 76-18-6 heptafluoropropane PFC R-218 Octafluoropropane C.sub.3F.sub.8 76-19-7 HCFC R-221 1,1,1,2,2,3-Hexachloro-3- C.sub.3HFCl.sub.6 422-26-4 fluoropropane HCFC R-222 Pentachlorodifluoropropane C.sub.3HF.sub.2Cl.sub.5 134237-36-8 HCFC R-222c 1,1,1,3,3-Pentachloro-2,2- C.sub.3HF.sub.2Cl.sub.5 422-49-1 difluoropropane HCFC R-223 Tetrachlorotrifluoropropane C.sub.3HF.sub.3Cl.sub.4 134237-37-9 HCFC R-223ca 1,1,3,3-Tetrachloro-1,2,2- C.sub.3HF.sub.3Cl.sub.4 422-52-6 trifluoropropane HCFC R-223cb 1,1,1,3-Tetrachloro-2,2,3- C.sub.3HF.sub.3Cl.sub.4 422-50-4 trifluoropropane HCFC R-224 Trichlorotetrafluoropropane C.sub.3HF.sub.4Cl.sub.3 134237-38-0 HCFC R-224ca 1,3,3-Trichloro-1,1,2,2- C.sub.3HF.sub.4Cl.sub.3 422-54-8 tetrafluoropropane HCFC R-224cb 1,1,3-Trichloro-1,2,2,3- C.sub.3HF.sub.4Cl.sub.3 422-53-7 tetrafluoropropane HCFC R-224cc 1,1,1-Trichloro-2,2,3,3- C.sub.3HF.sub.4Cl.sub.3 422-51-5 tetrafluoropropane HCFC R-225 Dichloropentafluoropropane C.sub.3HF.sub.5Cl.sub.2 127564-92-5 HCFC R-225aa 2,2-Dichloro-1,1,1,3,3- C.sub.3HF.sub.5Cl.sub.2 128903-21-9 pentafluoropropane HCFC R-225ba 2,3-Dichloro-1,1,1,2,3- C.sub.3HF.sub.5Cl.sub.2 422-48-0 pentafluoropropane HCFC R-225bb 1,2-Dichloro-1,1,2,3,3- C.sub.3HF.sub.5Cl.sub.2 422-44-6 pentafluoropropane HCFC R-225ca 3,3-Dichloro-1,1,1,2,2- C.sub.3HF.sub.5Cl.sub.2 422-56-0 pentafluoropropane HCFC R-225cb 1,3-Dichloro-1,1,2,2,3- C.sub.3HF.sub.5Cl.sub.2 507-55-1 pentafluoropropane HCFC R-225cc 1,1-Dichloro-1,2,2,3,3- C.sub.3HF.sub.5Cl.sub.2 13474-88-9 pentafluoropropane HCFC R-225da 1,2-Dichloro-1,1,3,3,3- C.sub.3HF.sub.5Cl.sub.2 431-86-7 pentafluoropropane HCFC R-225ea 1,3-Dichloro-1,1,2,3,3- C.sub.3HF.sub.5Cl.sub.2 136013-79-1 pentafluoropropane HCFC R-225eb 1,1-Dichloro-1,2,3,3,3- C.sub.3HF.sub.5Cl.sub.2 111512-56-2 pentafluoropropane HCFC R-226 Chlorohexafluoropropane C.sub.3HF.sub.6Cl 134308-72-8 HCFC R-226ba 2-Chloro-1,1,1,2,3,3- C.sub.3HF.sub.6Cl 51346-64-6 hexafluoropropane HCFC R-226ca 3-Chloro-1,1,1,2,2,3- C.sub.3HF.sub.6Cl 422-57-1 hexafluoropropane HCFC R-226cb 1-Chloro-1,1,2,2,3,3- C.sub.3HF.sub.6Cl 422-55-9 hexafluoropropane HCFC R-226da 2-Chloro-1,1,1,3,3,3- C.sub.3HF.sub.6Cl 431-87-8 hexafluoropropane HCFC R-226ea 1-Chloro-1,1,2,3,3,3- C.sub.3HF.sub.6Cl 359-58-0 hexafluoropropane HFC R-227ca 1,1,2,2,3,3,3-Heptafluoropropane C.sub.3HF.sub.7 2252-84-8 HFC R-227ca2 Trifluoromethyl 1,1,2,2- C.sub.3HF.sub.7O 2356-61-8 tetrafluoroethyl ether HFC R-227ea 1,1,1,2,3,3,3-Heptafluoropropane C.sub.3HF.sub.7 431-89-0 HFC R-227me Trifluoromethyl 1,2,2,2- C.sub.3HF.sub.7O 2356-62-9 tetrafluoroethyl ether HCFC R-231 Pentachlorofluoropropane C.sub.3H.sub.2FCl.sub.5 134190-48-0 HCFC R-232 Tetrachlorodifluoropropane C.sub.3H.sub.2F.sub.2Cl.sub.4 134237-39-1 HCFC R-232ca 1,1,3,3-Tetrachloro-2,2- C.sub.3H.sub.2F.sub.2Cl.sub.4 1112-14-7 difluoropropane HCFC R-232cb 1,1,1,3-Tetrachloro-2,2- C.sub.3H.sub.2F.sub.2Cl.sub.4 677-54-3 difluoropropane HCFC R-233 Trichlorotrifluoropropane C.sub.3H.sub.2F.sub.3Cl.sub.3 134237-40-4 HCFC R-233ca 1,1,3-Trichloro-2,2,3- C.sub.3H.sub.2F.sub.3Cl.sub.3 131221-36-8 trifluoropropane HCFC R-233cb 1,1,3-Trichloro-1,2,2- C.sub.3H.sub.2F.sub.3Cl.sub.3 421-99-8 trifluoropropane HCFC R-233cc 1,1,1-Trichloro-2,2,3- C.sub.3H.sub.2F.sub.3Cl.sub.3 131211-71-7 trifluoropropane HCFC R-234 Dichlorotetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 127564-83-4 HCFC R-234aa 2,2-Dichloro-1,1,3,3- C.sub.3H.sub.2F.sub.4Cl.sub.2 17705-30-5 tetrafluoropropane HCFC R-234ab 2,2-Dichloro-1,1,1,3- C.sub.3H.sub.2F.sub.4Cl.sub.2 149329-24-8 tetrafluoropropane HCFC R-234ba 1,2-Dichloro-1,2,3,3- C.sub.3H.sub.2F.sub.4Cl.sub.2 425-94-5 tetrafluoropropane HCFC R-234bb 2,3-Dichloro-1,1,1,2- C.sub.3H.sub.2F.sub.4Cl.sub.2 149329-25-9 tetrafluoropropane HCFC R-234bc 1,2-Dichloro-1,1,2,3- C.sub.3H.sub.2F.sub.4Cl.sub.2 149329-26-0 tetrafluoropropane HCFC R-234ca 1,3-Dichloro-1,2,2,3- C.sub.3H.sub.2F.sub.4Cl.sub.2 70341-81-0 tetrafluoropropane HCFC R-234cb 1,1-Dichloro-2,2,3,3- C.sub.3H.sub.2F.sub.4Cl.sub.2 4071-01-6 tetrafluoropropane HCFC R-234cc 1,3-Dichloro-1,1,2,2- C.sub.3H.sub.2F.sub.4Cl.sub.2 422-00-5 tetrafluoropropane HCFC R-234cd 1,1-Dichloro-1,2,2,3- C.sub.3H.sub.2F.sub.4Cl.sub.2 70192-63-1 tetrafluoropropane HCFC R-234da 2,3-Dichloro-1,1,1,3- C.sub.3H.sub.2F.sub.4Cl.sub.2 146916-90-7 tetrafluoropropane HCFC R-234fa 1,3-Dichloro-1,1,3,3- C.sub.3H.sub.2F.sub.4Cl.sub.2 76140-39-1 tetrafluoropropane HCFC R-234fb 1,1-Dichloro-1,3,3,3- C.sub.3H.sub.2F.sub.4Cl.sub.2 64712-27-2 tetrafluoropropane HCFC R-235 Chloropentafluoropropane C.sub.3H.sub.2F.sub.5Cl 134237-41-5 HCFC R-235ca 1-Chloro-1,2,2,3,3- C.sub.3H.sub.2F.sub.5Cl 28103-66-4 pentafluoropropane HCFC R-235cb 3-Chloro-1,1,1,2,3- C.sub.3H.sub.2F.sub.5Cl 422-02-6 pentafluoropropane HCFC R-235cc 1-Chloro-1,1,2,2,3- C.sub.3H.sub.2F.sub.5Cl 679-99-2 pentafluoropropane HCFC R-235da 2-Chloro-1,1,1,3,3- C.sub.3H.sub.2F.sub.5Cl 134251-06-2 pentafluoropropane HCFC R-235fa 1-Chloro-1,1,3,3,3- C.sub.3H.sub.2F.sub.5Cl 677-55-4 pentafluoropropane HFC R-236cb 1,1,1,2,2,3-Hexafluoropropane C.sub.3H.sub.2F.sub.6 677-56-5 HFC R-236ea 1,1,1,2,3,3-Hexafluoropropane C.sub.3H.sub.2F.sub.6 431-63-0 HFC R-236fa 1,1,1,3,3,3-Hexafluoropropane C.sub.3H.sub.2F.sub.6 690-39-1 HFC R-236me 1,2,2,2-Tetrafluoroethyl C.sub.3H.sub.2F.sub.6O 57041-67-5 difluoromethyl ether HFC R-FE-36 Hexafluoropropane C.sub.3H.sub.2F.sub.6 359-58-0 HCFC R-241 Tetrachlorofluoropropane C.sub.3H.sub.3FCl.sub.4 134190-49-1 HCFC R-242 Trichlorodifluoropropane C.sub.3H.sub.3F.sub.2Cl.sub.3 134237-42-6 HCFC R-243 Dichlorotrifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 134237-43-7 HCFC R-243ca 1,3-Dichloro-1,2,2-trifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 67406-68-2 HCFC R-243cb 1,1-Dichloro-2,2,3-trifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 70192-70-0 HCFC R-243cc 1,1-Dichloro-1,2,2-trifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 7125-99-7 HCFC R-243da 2,3-Dichloro-1,1,1-trifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 338-75-0 HCFC R-243ea 1,3-Dichloro-1,2,3-trifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 151771-08-3 HCFC R-243ec 1,3-Dichloro-1,1,2-trifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 149329-27-1 HCFC R-244 Chlorotetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 134190-50-4 HCFC R-244ba 2-Chloro-1,2,3,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl HCFC R-244bb 2-Chloro-1,1,1,2-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 421-73-8 HCFC R-244ca 3-Chloro-1,1,2,2-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 679-85-6 HCFC R-244cb 1-Chloro-1,2,2,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 67406-66-0 HCFC R-244cc 1-Chloro-1,1,2,2-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 421-75-0 HCFC R-244da 2-Chloro-1,1,3,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 19041-02-2 HCFC R-244db 2-Chloro-1,1,1,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 117970-90-8 HCFC R-244ea 3-Chloro-1,1,2,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl HCFC R-244eb 3-Chloro-1,1,1,2-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl HCFC R-244ec 1-Chloro-1,1,2,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl HCFC R-244fa 3-Chloro-1,1,1,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl HCFC R-244fb 1-Chloro-1,1,3,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 2730-64-5 HFC R-245ca 1,1,2,2,3-Pentafluoropropane C.sub.3H.sub.3F.sub.5 679-86-7 HFC R-245cb Pentafluoropropane C.sub.3H.sub.3F.sub.5 1814-88-6 HFC R-245ea 1,1,2,3,3-Pentafluoropropane C.sub.3H.sub.3F.sub.5 24270-66-4 HFC R-245eb 1,1,1,2,3-Pentafluoropropane C.sub.3H.sub.3F.sub.5 431-31-2 HFC R-245fa 1,1,1,3,3-Pentafluoropropane C.sub.3H.sub.3F.sub.5 460-73-1 HFC R-245mc Methyl pentafluoroethyl ether C.sub.3H.sub.3F.sub.5O 22410-44-2 HFC R-245mf Difluoromethyl 2,2,2-trifluoroethyl C.sub.3H.sub.3F.sub.5O 1885-48-9 ether HFC R-245qc Difluoromethyl 1,1,2-trifluoroethyl C.sub.3H.sub.3F.sub.5O 69948-24-9 ether HCFC R-251 Trichlorofluoropropane C.sub.3H.sub.4FCl.sub.3 134190-51-5 HCFC R-252 Dichlorodifluoropropane C.sub.3H.sub.4F.sub.2Cl.sub.2 134190-52-6 HCFC R-252ca 1,3-Dichloro-2,2-difluoropropane C.sub.3H.sub.4F.sub.2Cl.sub.2 1112-36-3 HCFC R-252cb 1,1-Dichloro-2,2-difluoropropane C.sub.3H.sub.4F.sub.2Cl.sub.2 1112-01-2 HCFC R-252dc 1,2-Dichloro-1,1-difluoropropane C.sub.3H.sub.4F.sub.2Cl.sub.2 HCFC R-252ec 1,1-Dichloro-1,2-difluoropropane C.sub.3H.sub.4F.sub.2Cl.sub.2 HCFC R-253 Chlorotrifluoropropane C.sub.3H.sub.4F.sub.3Cl 134237-44-8 HCFC R-253ba 2-Chloro-1,2,3-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-253bb 2-Chloro-1,1,2-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-253ca 1-Chloro-2,2,3-trifluoropropane C.sub.3H.sub.4F.sub.3Cl 56758-54-4 HCFC R-253cb 1-Chloro-1,2,2-trifluoropropane C.sub.3H.sub.4F.sub.3Cl 70192-76-6 HCFC R-253ea 3-Chloro-1,1,2-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-253eb 1-Chloro-1,2,3-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-253ec 1-Chloro-1,1,2-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-253fa 3-Chloro-1,3,3-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-253fb 3-Chloro-1,1,1-trifluoropropane C.sub.3H.sub.4F.sub.3Cl 460-35-5 HCFC R-253fc 1-Chloro-1,1,3-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HFC R-254cb 1,1,2,2-Tetrafluoropropane C.sub.3H.sub.4F.sub.4 40723-63-5 HFC R-254pc Methyl 1,1,2,2-tetrafluoroethyl C.sub.3H.sub.4F.sub.4O 425-88-7 ether HCFC R-261 Dichlorofluoropropane C.sub.3H.sub.5FCl.sub.2 134237-45-9 HCFC R-261ba 1,2-Dichloro-2-fluoropropane C.sub.3H.sub.5FCl.sub.2 420-97-3 HCFC R-262 Chlorodifluoropropane C.sub.3H.sub.5F.sub.2Cl 134190-53-7 HCFC R-262ca 1-Chloro-2,2-difluoropropane C.sub.3H.sub.5F.sub.2Cl 420-99-5 HCFC R-262fa 3-Chloro-1,1-difluoropropane C.sub.3H.sub.5F.sub.2Cl HCFC R-262fb 1-Chloro-1,3-difluoropropane C.sub.3H.sub.5F.sub.2Cl HFC R-263 Trifluoropropane C.sub.3H.sub.5F.sub.3 HCFC R-271 Chlorofluoropropane C.sub.3H.sub.6FCl 134190-54-8 HCFC R-271b 2-Chloro-2-fluoropropane C.sub.3H.sub.6FCl 420-44-0 HCFC R-271d 2-Chloro-1-fluoropropane C.sub.3H.sub.6FCl HCFC R-271fb 1-Chloro-1-fluoropropane C.sub.3H.sub.6FCl HFC R-272 Difluoropropane C.sub.3H.sub.6F.sub.2 HFC R-281 Fluoropropane C.sub.3H.sub.7F HC R-290 Propane C.sub.3H.sub.8 or CH.sub.3CH.sub.2CH.sub.3 74-98-6 CFC R-C316 Dichlorohexafluorocyclobutane C.sub.4Cl.sub.2F.sub.6 356-18-3 CFC R-C317 Chloroheptafluorocyclobutane C.sub.4ClF.sub.7 377-41-3 PFC R-C318 Octafluorocyclobutane C.sub.4F.sub.8 or (CF.sub.2).sub.4 115-25-3 (Perfluorocyclobutane) PFC R-3-1-10 Decafluorobutane (Perfluorobutane) C.sub.4F.sub.10 355-25-9 HFC R-329ccb 1,1,1,2,2,3,3,4,4-Nonafluorobutane C.sub.4HF.sub.9 375-17-7 HFC R-338eea 1,1,1,2,3,4,4,4-Octafluorobutane C.sub.4H.sub.2F.sub.8 75995-72-1 HFC R-347ccd 1,1,1,2,2,3,3-Heptafluorobutane C.sub.4H.sub.3F.sub.7 662-00-0 HFC R-347mcc Perfluoropropyl methyl ether C.sub.4H.sub.3F.sub.7O 375-03-1 HFC R-347mmy Perfluoroisopropyl methyl ether C.sub.4H.sub.3F.sub.7O 22052-84-2 HFC R-365mfc 1,1,1,3,3-Pentafluorobutane C.sub.4H.sub.5F.sub.5 406-58-6 PFC R-4-1-12 Dodecafluoropentane C.sub.5F.sub.12 678-26-2 (Perfluoropentane) PFC R-5-1-14 Tetradecafluorohexane C.sub.6F.sub.14 355-42-0 (Perfluorohexane) CFC R-400 R-12/114(50/50 wt %) OR 50% CCl.sub.2F.sub.250% C.sub.2F.sub.4Cl.sub.2 OR (60/40)(must be specified) 60% CCl.sub.2F.sub.240% C.sub.2F.sub.4Cl.sub.2 HCFC R-401A R-22/152a/124 53 2% CHClF.sub.213 + MP-39.sup.[6][19] (53 2/13 + .5, 1.5/34 1) .5, 1.5% C.sub.2H.sub.4F.sub.234 1% C.sub.2HF.sub.4Cl HCFC R-401B R-22/152a/124 61 2% CHClF.sub.211 + MP-66.sup.[6][19] (61 2/11 + .5, 1.5/28 1) .5, 1.5% C.sub.2H.sub.4F.sub.228 1% C.sub.2HF.sub.4Cl HCFC R-401C R-22/152a/124 33 2% CHClF.sub.215 + MP-52.sup.[19] (33 2/15 + .5, 1.5/52 1) .5, 1.5% C.sub.2H.sub.4F.sub.252 1% C.sub.2HF.sub.4Cl HCFC R-402A R-125/290/22 60 2% C.sub.2HF.sub.52 HP-80.sup.[6][19] (60 2/2 1/38 2) 1% C.sub.3H.sub.838 2% CHClF.sub.2 HCFC R-402B R-125/290/22 38 2% C.sub.2HF.sub.52 HP-81.sup.[6][19] (38 2/2 1/60 2) 1% C.sub.3H.sub.860 2% CHClF.sub.2 HCFC R-403A R-290/22/218 5 + .2, 2% C.sub.3H.sub.875 ISCEON 69-S.sup.[6] (5 + .2, 2/75 2/20 0) 2% CHClF.sub.220 0% C.sub.3F.sub.8 HCFC R-403B R-290/22/218 5 + .2, 2% C.sub.3H.sub.856 ISCEON 69-L.sup.[6] (5 + .2, 2/56 2/39 0) 2% CHClF.sub.239 0% C.sub.3F.sub.8 HFC R-404A R-125/143a/134a 44 2% C.sub.2HF.sub.552 HP-62,.sup.[6][19] FX- (44 2/52 1/4 2) 1% C.sub.2H.sub.3F.sub.34 2% C.sub.2H.sub.2F.sub.4 70.sup.[6][19] HCFC R-405A R-22/152a/142b/C318 45 0% CHClF.sub.27 1% C.sub.2H.sub.4F.sub.25.5 GREENCOOL (45 0/7 1/5.5 1/42.5 2) 1% C.sub.2H.sub.3F.sub.2Cl42.5 2% C.sub.4F.sub.8 G2015.sup.[6] HCFC R-406A R-22/600a/142b 55 2% CHClF.sub.24 GHG.sup.[6][19] (55 2/4 1/41 0) 1% C.sub.4H.sub.1041 0% C.sub.2H.sub.3F.sub.2Cl HCFC R-406B R-22/600a/142b 65 2% CHClF.sub.24 GHG-HP.sup.[6] (65 2/4 1/31 0) 1% C.sub.4H.sub.1031 0% C.sub.2H.sub.3F.sub.2Cl HFC R-407A R-32/125/134a 20 2% CH.sub.2F.sub.240 Klea 60.sup.[6][19] (20 2/40 2/40 2) 2% C.sub.2HF.sub.540 2% C.sub.2H.sub.2F.sub.4 HFC R-407B R-32/125/134a 10 2% CH.sub.2F.sub.270 Klea 61.sup.[6] (10 2/70 2/20 2) 2% C.sub.2HF.sub.520 2% C.sub.2H.sub.2F.sub.4 HFC R-407C R-32/125/134a 23 2% CH.sub.2F.sub.225 Klea 66,.sup.[6] (23 2/25 2/52 2) 2% C.sub.2HF.sub.552 2% C.sub.2H.sub.2F.sub.4 AC9000.sup.[19] HFC R-407D R-32/125/134a 15 2% CH.sub.2F.sub.215 (15 2/15 2/70 2) 2% C.sub.2HF.sub.570 2% C.sub.2H.sub.2F.sub.4 HFC R-407E R-32/125/134a 25 2% CH.sub.2F.sub.215 (25 2/15 2/60 2) 2% C.sub.2HF.sub.560 2% C.sub.2H.sub.2F.sub.4 HFC R-407F R-32/125/134a 30 2% CH.sub.2F.sub.230 Genetron (30 2/30 2/40 2) 2% C.sub.2HF.sub.540 2% C.sub.2H.sub.2F.sub.4 Performax LT.sup.[9] HCFC R-408A R-125/143a/22 7 2% C.sub.2HF.sub.546 FX-10.sup.[6][19] (7 2/46 1/47 2) 1% C.sub.2H.sub.3F.sub.347 2% CHClF.sub.2 HCFC R-409A R-22/124/142b 60 2% CHClF.sub.225 FX-56.sup.[6][19] (60 2/25 2/15 1) 2% C.sub.2HF.sub.4Cl15 1% C.sub.2H.sub.3F.sub.2Cl HCFC R-409B R-22/124/142b 65 2% CHClF.sub.225 FX-57.sup.[6] (65 2/25 2/10 1) 2% C.sub.2HF.sub.4Cl10 1% C.sub.2H.sub.3F.sub.2Cl HFC R-410A R-32/125 50 + .5, 1.5% CH.sub.2F.sub.250 + AZ-20,.sup.[6] Puron,.sup.[6] (50 + .5, 1.5/50 + 1.5, .5) 1.5, .5% C.sub.2HF.sub.5 Suva 9100.sup.[6] HFC R-410B R-32/125 45 1% CH.sub.2F.sub.255 1% C.sub.2HF.sub.5 AC9100.sup.[19] (45 1/55 1) HCFO R-411A R-1270/22/152a 1.5 + 0, 1% C.sub.3H.sub.687.5 + GREENCOOL (1.5 + 0, 1/87.5 + 2, 0/11 + 0, 1) 2, 0% CHClF.sub.211 + 0, 1% C.sub.2H.sub.4F.sub.2 G2018a.sup.[6] HCFO R-411B R-1270/22/152a 3 + 0, 1% C.sub.3H.sub.694 + GREENCOOL (3 + 0, 1/94 + 2, 0/3 + 0, 1) 2, 0% CHClF.sub.23 + 0, 1% C.sub.2H.sub.4F.sub.2 G2018b.sup.[6] HCFO R-411C R-1270/22/152a 3 + 0, 1% C.sub.3H.sub.695.5 + GREENCOOL (3 + 0, 1/95.5 + 2, 0/1.5 + 0, 1) 2, 0% CHClF.sub.21.5 + 0, 1% C.sub.2H.sub.4F.sub.2 G2018c.sup.[6] HCFC R-412A R-22/218/142b 70 2% CHClF.sub.25 Arcton TP5R.sup.[6] (70 2/5 2/25 1) 2% C.sub.3F.sub.825 1% C.sub.2H.sub.3F.sub.2Cl HFC R-413A R-218/134a/600a 9 1% C.sub.3F.sub.888 ISCEON 49.sup.[6] (9 1/88 2/3 + 0, 1) 2% C.sub.2H.sub.2F.sub.43 + 0, 1% C.sub.4H.sub.10 HCFC R-414A R-22/124/600a/142b 51 2% CHClF.sub.228.5 GHG-X4,.sup.[6] (51 2/28.5 2/4 .5/16.5 + .5, 1) 2% C.sub.2HF.sub.4Cl4 .5% C.sub.4H.sub.1016.5 + Autofrost,.sup.[6] Chill- .5, 1% C.sub.2H.sub.3F.sub.2Cl It.sup.[6] HCFC R-414B R-22/124/600a/142b 50 2% CHClF.sub.239 Hot Shot,.sup.[6][19] Kar (50 2/39 2/1.5 .5/9.5 + .5, 1) 2% C.sub.2HF.sub.4Cl1.5 .5% C.sub.4H.sub.109.5 + Kool.sup.[6] .5, 1% C.sub.2H.sub.3F.sub.2Cl HCFC R-415A R-22/152a (82 1/18 1) 82 1% CHClF.sub.218 1% C.sub.2H.sub.4F.sub.2 HCFC R-415B R-22/152a (25 1/75 1) 25 1% CHClF.sub.275 1% C.sub.2H.sub.4F.sub.2 HCFC R-416A R-134a/124/600 59 + .5, 1% C.sub.2H.sub.2F.sub.439.5 + FRIGC (FR-12).sup.[6] (59 + .5, 1/39.5 + 1, .5/1.5 + 1 , .2) 1, .5% C.sub.2HF.sub.4Cl1.5 + .1, .2% C.sub.4H.sub.10 HFC R-417A R-125/134a/600 46.6 1.1% C.sub.2HF.sub.550 ISCEON 59,.sup.[6] (46.6 1.1/50 1/3.4 + .1, .4) 1% C.sub.2H.sub.2F.sub.43.4 + .1, .4% C.sub.4H.sub.10 NU-22.sup.[6] HFC R-417B R-125/134a/600 79 1% C.sub.2HF.sub.518.3 (79 1/18.3 1/2.7 + .1, .5) 1% C.sub.2H.sub.2F.sub.42.7 + 1, .5% C.sub.4H.sub.10 HCFC R-418A R-290/22/152a 1.5 .5% C.sub.3H.sub.896 (1.5 .5/96 1/2.5 .5) 1% CHClF.sub.22.5 .5% C.sub.2H.sub.4F.sub.2 HFC R-419A R-125/134a/E170 77 1% C.sub.2HF.sub.519 (77 1/19 1/4 1) 1% C.sub.2H.sub.2F.sub.44 1% C.sub.2H.sub.6O HCFC R-420A R-134a/142b 88 + 1, 0% C.sub.2H.sub.2F.sub.412 + Choice (88 + 1, 0/12 + 0, 1) 0, 1% C.sub.2H.sub.3F.sub.2Cl Refrigerant.sup.[19] HFC R-421A R-125/134a (58 1/42 1) 58 1% C.sub.2HF.sub.542 1% C.sub.2H.sub.2F.sub.4 Choice R421 A.sup.[19] HFC R-421B R-125/134a (85 1/15 1) 85 1% C.sub.2HF.sub.515 1% C.sub.2H.sub.2F.sub.4 Choice 421B.sup.[19] HFC R-422A R-125/134a/600a 85.1 1% C.sub.2HF.sub.511.5 ISCEON 79.sup.[19] (85.1 1/11.5 1/3.4 + .1, .4) 1% C.sub.2H.sub.2F.sub.43.4 + .1, .4% C.sub.4H.sub.10 HFC R-422B R-125/134a/600a 55 1% C.sub.2HF.sub.542 ICOR XAC1.sup.[19] (55 1 /42 1/3 + .1, .5) 1% C.sub.2H.sub.2F.sub.43 + .1, .5% C.sub.4H.sub.10 HFC R-422C R-125/134a/600a 82 1% C.sub.2HF.sub.515 ICOR XLT1.sup.[19] (82 1/15 1/3 + .1, .5) 1% C.sub.2H.sub.2F.sub.43 + .1, .5% C.sub.4H.sub.10 HFC R-422D R-125/134a/600a 65.1 + .9, 1.1% C.sub.2HF.sub.531.5 ISCEON MO29.sup.[19] (65.1 + .9, 1.1/31.5 1/3.4 + .1, .4) 1% C.sub.2H.sub.2F.sub.43.4 + .1, .4% C.sub.4H.sub.10 HFC R-423A R-134a/227ea (52.5 1/47.5 1) 52.5 1% C.sub.2H.sub.2F.sub.447.5 1% C.sub.3HF.sub.7 HFC R-424A R-125/134a/600a/600/601a 50.5 1% C.sub.2HF.sub.547 RS-44 (new (50.5 1/47 1/.9 + .1, .2/ 1% C.sub.2H.sub.2F.sub.41.9 + .3, .1% C.sub.4H.sub.10.6 + comp.).sup.[19] 1 + .1, + .2/.6 + .1, .2) .1, .2% C.sub.5H.sub.12 HFC R-425A R-32/134a/227ea 18.5 .5% CH.sub.2F.sub.269.5 (18.5 .5/69.5 .5/12 .5) .5% C.sub.2H.sub.2F.sub.412 .5% C.sub.3HF.sub.7 HFC R-426A R-125/134a/600/601a 5.1 1% C.sub.2HF.sub.593 RS-24 (new (5.1 1/93 1/1.3 + .1, .2/.6 + .1, .2) 1% C.sub.2H.sub.2F.sub.41.3 + .1, .2% C.sub.4H.sub.10.6 + comp.).sup.[19] .1, .2% C.sub.5H.sub.12 HFC R-427A R-32/125/143a/134a 15 2% CH.sub.2F.sub.225 Forane 427A.sup.[19] (15 2/25 2/10 2/50 2) 2% C.sub.2HF.sub.510 2% C.sub.2H.sub.3F.sub.350 2% C.sub.2H.sub.2F.sub.4 HFC R-428A R-125/143a/290/600a 77.5 1% C.sub.2HF.sub.520 RS-52.sup.[19] (77.5 1/20 1/.6 + .1, .2/1.9 + .1, .2) 1% C.sub.2H.sub.3F.sub.3.6 + .1, .2% C.sub.3H.sub.81.9 + .1, .2% C.sub.4H.sub.10 HFC R-429A R-E170/152a/600a 60 1% C.sub.2H.sub.6O10 (60 1/10 1/30 1) 1% C.sub.2H.sub.4F.sub.230 1% C.sub.4H.sub.10 HFC R-430A R-152a/600a (76 1/24 1) 76 1% C.sub.2H.sub.4F.sub.224 1% C.sub.4H.sub.10 HFC R-431A R-290/152a (71 1/29 1) 71 1% C.sub.3H.sub.829 1% C.sub.2H.sub.4F.sub.2 HO R-432A R-1270/E170 (80 1/20 1) 80 1% C.sub.3H.sub.620 1% C.sub.2H.sub.6O HO R-433A R-1270/290 (30 1/70 1) 30 1% C.sub.3H.sub.670 1% C.sub.3H.sub.8 HO R-433B R-1270/290 (5 1/95 1) 5 1% C.sub.3H.sub.695 1% C.sub.3H.sub.8 HO R-433C R-1270/290 (25 1/75 1) 25 1% C.sub.3H.sub.675 1% C.sub.3H.sub.8 HFC R-434A R-125/143a/134a/600a 63.2 1% C.sub.2HF.sub.518 RS-45.sup.[19] (63.2 1/18 1/16 1/2.8 + .1, .2) 1% C.sub.2H.sub.3F.sub.316 1% C.sub.2H.sub.2F.sub.42.8 + .1, .2% C.sub.4H.sub.10 HFC R-435A R-E170/152a (80 1/20 1) 80 1% C.sub.2H.sub.6O20 1% C.sub.2H.sub.4F.sub.2 HC R-436A R-290/600a (56 1/44 1) 56 1% C.sub.3H.sub.844 1% C.sub.4H.sub.10 HC R-436B R-290/600a (52 1/48 1) 52 1% C.sub.3H.sub.848 1% C.sub.4H.sub.10 HFC R-437A R-125/134a/600/601 19.5 + .5, 1.8% C.sub.2HF.sub.578.5 + (19.5 + .5, 1.8/78.5 + 1.5, .7/ 1.5, .7% C.sub.2H.sub.2F.sub.41.4 + 1.4 + .1, .2/.6 + .1, .2) .1, .2% C.sub.4H.sub.10.6 + .1, .2% C.sub.5H.sub.12 HFC R-438A R-32/125/134a/600/601a 8.5 + .5, 1.5% CH.sub.2F.sub.245 KDD5,.sup.[19] (8.5 + .5, 1.5/45 1.5/44.2 1.5% C.sub.2HF.sub.544.2 1.5% C.sub.2H.sub.2F.sub.41.7 + ISCEON MO99.sup.[19] 1.5/1.7 + .1, .2/.6 + .1, .2) .1, .2% C.sub.4H.sub.10.6 + .1, .2% C.sub.5H.sub.12 HFC R-439A R-32/125/600a 50 1% CH.sub.2F.sub.247 (50 1/47 1/3 .5) 1% C.sub.2HF.sub.53 .5% C.sub.4H.sub.10 HFC R-440A R-290/134a/152a .6 .1% C.sub.3H.sub.81.6 (.6 .1/1.6 .6/97.8 .5) .6% C.sub.2H.sub.2F.sub.497.8 .5% C.sub.2H.sub.4F.sub.2 HC R-441A R-170/290/600a/600 3.1 .3% C.sub.2H.sub.654.8 HCR-188C.sup.[19] (3.1 .3/54.8 2/6 .6/36.1 2) 2% C.sub.3H.sub.842.1 2.6% C.sub.4H.sub.10 HCFC R-500 R-12/152a (73.8/26.2) 73.8% CCl.sub.2F.sub.226.2% C.sub.2H.sub.4F.sub.2 Carrene #7.sup.[6] HCFC R-501 R-22/12 (75/25) 75% CHClF.sub.225% CCl.sub.2F.sub.2 HCFC R-502 R-22/115 (48.8/51.2) 48.8% CHClF.sub.251.2% C.sub.2F.sub.5Cl HCFC R-503 R-23/13 (40.1/59.9) 40.1% CHF.sub.359.9% CClF.sub.3 HCFC R-504 R-32/115 (48.2/51.8) 48.2% CH.sub.2F.sub.251.8% C.sub.2F.sub.5Cl HCFC R-505 R-12/31 (78/22) 78% CCl.sub.2F.sub.222% CH.sub.2FCl HCFC R-506 R-31/114 (55.1/44.9) 55.1% CH.sub.2FCl44.9% C.sub.2F.sub.4Cl.sub.2 HFC R-507[A] R-125/143a (50/50) 50% C.sub.2HF.sub.550% C.sub.2H.sub.3F.sub.3 AZ-50.sup.[6][19] HFC R-508[A] R-23/116 (39/61) 39% CHF.sub.361% C.sub.2F.sub.6 Klea 5R3.sup.[6][19] HFC R-508B R-23/116 (46/54) 46% CHF.sub.354% C.sub.2F.sub.6 Suva 95.sup.[6][19] HCFC R-509[A] R-22/218 (44/56) 44% CHClF.sub.256% C.sub.3F.sub.8 Arcton TP5R2.sup.[6] HC R-510[A] R-E170/600a (88 .5/12 .5) 88 .5% C.sub.2H.sub.6O12 .5% C.sub.4H.sub.10 HC R-511[A] R-290/E170 (95 1/5 1) 95 1% C.sub.3H.sub.85 1% C.sub.2H.sub.6O HC R-600 Butane C.sub.4H.sub.10 or CH.sub.3CH.sub.2CH.sub.2CH.sub.3 106-97-8 HC R-600a Isobutane C.sub.4H.sub.10 or CH(CH.sub.3).sub.2CH.sub.3 75-28-5 HC R-601 Pentane C.sub.5H.sub.12 or CH.sub.3CH.sub.2CH.sub.2CH.sub.2CH.sub.3 109-66-0 HC R-601a Isopentane C.sub.5H.sub.12 or (CH.sub.3).sub.2CHCH.sub.2CH.sub.3 78-78-4 HC R-610 Ethoxyethane (Diethyl ether) CH.sub.3CH.sub.2OCH.sub.2CH.sub.3 60-29-7 HC R-611 Methyl formate HCOOCH.sub.3 107-31-3 R-630 Methylamine CH.sub.3NH.sub.2 74-89-5 R-631 Ethylamine CH.sub.3CH.sub.2(NH.sub.2) 75-04-7 R-702 Hydrogen H.sub.2 1333-74-0 R-704 Helium He 7440-59-7 R-717 Ammonia NH.sub.3 7664-41-7 R-718 Water/Steam H.sub.2O 7732-18-5 R-720 Neon Ne 7440-01-9 R-728 Nitrogen N.sub.2 7727-37-9 R-729 Air N.sub.2/O.sub.2/Ar 78.082% N.sub.220.945% O.sub.2.934% Ar (78.082/20.945/.934 vol %) R-732 Oxygen O.sub.2 7782-44-7 R-740 Argon Ar 7440-37-1 R-744 Carbon dioxide CO.sub.2 124-38-9 R-744A Nitrous oxide N.sub.2O 10024-97-2 R-764 Sulfur dioxide SO.sub.2 7446-09-5 R-784 Krypton Kr 7439-90-9 CFO R-1112a 1,1-Dichloro-2,2-difluoroethylene C.sub.2Cl.sub.2F.sub.2 79-35-6 CFO R-1113 Chlorotrifluoroethylene C.sub.2ClF.sub.3 79-38-9 PFO R-1114 Tetrafluoroethylene C.sub.2F.sub.4 116-14-3 HCO R-1120 Trichloroethylene (trielene) C.sub.2HCl.sub.3 79-01-6 HCO R-1130 cis-1,2-Dichloroethylene C.sub.2H.sub.2Cl.sub.2 156-59-2 HFO R-1132a 1,1-Difluoroethylene C.sub.2H.sub.2F.sub.2 75-38-7 HCO R-1140 Chloroethylene (vinyl chloride) C.sub.2H.sub.3Cl 75-01-4 HFO R-1141 Fluoroethylene (vinyl fluoride) C.sub.2H.sub.3F 75-02-5 HO R-1150 Ethene (Ethylene) CH.sub.2CH.sub.2 74-85-1 PFO R-1216 Hexafluoropropylene C.sub.3F.sub.6 116-15-4 PFO R-1218 Hexafluoropropene trimer (C.sub.3F.sub.6).sub.3 6792-31-0 HCFO R-1233zd 1-Chloro-3,3,3-trifluoropropene C.sub.3H.sub.2ClF.sub.3 2730-43-0 HFO R-1234yf 2,3,3,3-Tetrafluoropropene C.sub.3H.sub.2F.sub.4 754-12-1 HFO R-1234ze 1,3,3,3-Tetrafluoropropene C.sub.3H.sub.2F.sub.4 1645-83-6 HO R-1270 Propene (Propylene) C.sub.3H.sub.6 or CH.sub.3CHCH.sub.2 115-07-1 [1] Composition of Refrigerant Blends, www.epa.gov/ozone/snap/refrigerants/refblend.html [2] Andy's HVAC/R Web Page, users.isp.com/aschoen/refchart.pdf Type Meaning Atoms in the Molecule CFC Chlorofluorocarbon Cl, F, C CFO Chlorofluoroolefin HCFC Hydrochlorofluorocarbon H, Cl, F, C HCFO Hydrochlorofluoroolefin HFC Hydrofluorocarbon H, F, C HFO Hydrofluoroolefin HCC Hydrochlorocarbon H, Cl, C HCO Hydrochloroolefin HC Hydrocarbon H, C HO Hydroolefin (Alkene) PFC Perfluorocarbon F, C PFO Perfluoroolefin PCC Perchlorocarbon Cl, C PCO Perchloroolefin H Halon/Haloalkane Br, Cl (in some but not all), F, H (in some but not all), C