System and method for retrofitting a refrigeration system from HCFC to HFC refrigerant

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 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: evacuating the HCFC from the refrigeration system, leaving at least a portion of the mineral oil or alkyl benzene lubricant; and charging the refrigeration system with a composition comprising the HFC refrigerant mixed with a polyol ester lubricant, thereby resulting in a refrigeration system charged with the HFC and a mixed lubricant comprising both the mineral oil or alkyl benzene lubricant and the polyol ester lubricant.

2. The method according to claim 1, wherein the refrigeration system comprises a hermetically sealed refrigeration system, further comprising: providing a transport container containing the HFC refrigerant mixed with the polyol ester lubricant; and said evacuating comprises withdrawing the HCFC from within the refrigeration system through a charge-discharge port, leaving at least a portion of the mineral oil or alkyl benzene lubricant.

3. The method according to claim 1, wherein the mineral oil or alkyl benzene lubricant is a mineral oil lubricant.

4. The method according to claim 1, wherein the HCFC comprises R-22, and the HFC comprises R-407C.

5. The method according to claim 1, wherein the polyol ester is provided in an amount of 5% to 15% by weight.

6. The method according to claim 1, wherein the polyol ester is provided in an amount of 8% by weight.

7. The method according to claim 1, wherein the refrigeration system after recharging has a concentration of 15-32% by weight mixed lubricant.

8. The method according to claim 1, wherein the transport container is U.S. Department of Transportation compliant.

9. The method according to claim 1, wherein the transport container is compliant at least one of U.S. Department of Transportation standards DOT-39, DOT 3, DOT 3A, DOT 3AA, DOT 3AL, DOT 3B, DOT 3BN, DOT 3E, DOT 4B, DOT 4BA, DOT 4B240ET, DOT 4BW, DOT 4E, DOT 3AL1800; DOT 4D; DOT-3A1000; DOT-3A1200; DOT-3A150; DOT-3A1800; DOT-3A2000; DOT-3A225; DOT-3A240; DOT-3A2400; DOT-3A300; DOT-3A400; DOT-3A480; DOT-3A480X; DOT-3AA; DOT-3AA1000; DOT-3AA1200; DOT-3AA150; DOT-3AA1800; DOT-3AA2000; DOT-3AA225; DOT-3AA240; DOT-3AA2400; DOT-3AA300; DOT-3AA400; DOT-3AA480; DOT-3AAX1800; DOT-3AAX2000; DOT-3AAX2200; DOT-3AAX2400; DOT-3AL; DOT-3AL1000; DOT-3AL150; DOT-3AL1800; DOT-3AL2000; DOT-3AL225; DOT-3AL240; DOT-3AL2400; DOT-3AL400; DOT-3AL480; DOT-3AX1800; DOT-3AX2000; DOT-3AX2200; DOT-3AX2400; DOT-3B; DOT-3B150; DOT-3B1800; DOT-3B225; DOT-3B240; DOT-3B300; DOT-3B400; DOT-3BN400; DOT-3BN480; DOT-3E1800; DOT-3HT; DOT-3HT2000; DOT-3T1800; DOT-3T2000; DOT-3T2200; DOT-3T2400; DOT-4A; DOT-4AA480; DOT-4B; DOT-4B150; DOT-4B150; DOT-4B225; DOT-4B240; DOT-4B240ET; DOT-4B300; DOT-4B400; DOT-4B480; DOT-4BA; DOT-4BA225; DOT-4BA240; DOT-4BA300; DOT-4BA400; DOT-4BW225; DOT-4BW240; DOT-4BW300; DOT-4BW400; DOT-4BW480; DOT-4DA; DOT-4DS; DOT-4E225; DOT-4E240; DOT-4L; DOT-AAX2400; and ICC-3E1800.

10. The method according to claim 1, wherein the HFC refrigerant is a blend of difluoromethane (R-32), pentafluoroethane (R-125), and 1,1,1,2-tetrafluoroethane (R-134a).

11. The method according to claim 10, wherein the HFC is R-407C, and the polyol ester lubricant is premixed with the HFC refrigerant in an amount of 8% by weight.

12. The method according to claim 10, wherein the system after charging has a concentration of 20-25% by weight lubricant mixture.

13. The method according to claim 10, wherein the HFC refrigerant mixed with the polyol ester lubricant is provided in a U.S. Department of Transportation compliant transport container having a capacity of 50 pounds or lower.

14. A method for retrofitting an HCFC refrigeration system having a mineral oil or alkyl benzene lubricant, which persists as a residual after removal of the HCFC from the refrigeration system by evacuation, to an HFC refrigerant which is not compatible with the HFC refrigerant as a sole lubricant, comprising: providing a container adapted for common carrier transport, containing a composition comprising an HFC refrigerant mixed with a compatible polyol ester lubricant; evacuating the HCFC from the refrigeration system, leaving at least a portion of the mineral oil or alkyl benzene lubricant within the refrigeration system; and charging the refrigeration system with the composition from the container, comprising the HFC refrigerant mixed with the compatible polyol ester lubricant, to thereby provide the refrigeration system charged with the HFC and a combination of the mineral oil or alkyl benzene lubricant and the HFC refrigerant.

15. The method according to claim 14, wherein: the HCFC comprises R-22; the container comprises a U.S. Department of Transportation certified transport container; and the HFC is R-407C.

16. The method according to claim 14, wherein the polyol ester lubricant is present in the container an amount of 5% to 15% by weight and the HFC refrigerant is present in an amount of 95-85% by weight.

17. The method according to claim 14, wherein the polyol ester lubricant is present in the container an amount of 8% by weight and the HFC refrigerant is present in an amount of 92% by weight.

18. The method according to claim 14, wherein the HFC is selected from the group consisting of R-134a, R-404A, R-407A, R-407C, R-407F, R-410A, R-417A, R-417B, R-422A, R-422B, R-422C, R-422D, R-424A, R-427A, R-428A, R-434A, R-438A, R-442A, and RS07A.

19. The method according to claim 14, wherein the transport container is DOT-39 compliant.

20. A method for retrofitting a refrigeration system from an HCFC refrigerant compatible with a mineral oil or alkyl benzene lubricant to 407C premixed with a compatible polyol ester lubricant in an amount of between 5%-20% by weight of the refrigerant, comprising: providing a mixture of the 407C premixed with the compatible polyol ester lubricant to the refrigeration system in a U.S. Department of Transportation compliant transport container having a capacity of 50 pounds or lower; evacuating the HCFC from the refrigeration system through a charge-discharge port of the refrigeration system, without draining the mineral oil or alkyl benzene lubricant, and leaving at least a portion of the mineral oil or alkyl benzene lubricant in the refrigeration system; and charging the refrigeration system with the mixture from the container of the 407C premixed with the compatible polyol ester lubricant, thereby resulting in the refrigeration system charged with the 407C and a mixed lubricant comprising both the mineral oil or alkyl benzene lubricant and the compatible polyol ester lubricant, wherein the mixed lubricant is present in the refrigeration system in an amount of 16% to 32% by weight of the refrigerant charge, and the compatible polyol ester lubricant is present in the refrigeration system an amount of 25% to 50% by weight of the mixed lubricant.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows a flowchart of a method according to the present invention.

(2) 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

(3) 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.

(4) 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

(5) 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.

(6) 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.

(7) 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.

(8) 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.

(9) The operating temperatures for R-22 (>86 F and <86 F) and R-407C (<86 F) 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.

(10) 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

(11) 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=DB0284B88-942E-B0A5-4028-CAFB85BB40AB, which are expressly incorporated herein by reference.

Comparative Examiner 2

(12) See: www2.dupont.com/Refrigerants/en_US/assets/downloads/h70004_Suva407C_retrofit_guide.pdf, which is expressly incorporated herein by reference.

Comparative Example 3

(13) See: opi.emersonclimate.com/CPID/GRAPHICS/Types/AEB/95-14.pdf, which is expressly incorporated herein by reference.

Comparative Example 4

(14) See: www.refrigerants.com/pdf/Nat-R407Broch.pdf, which is expressly incorporated herein by reference.

Comparative Example 5

(15) See: neilorme.com/Tecumseh%20Guidelines%20R407c.shtml, which is expressly incorporated herein by reference.

Comparative Example 6

(16) See: www.bristolcompressors.com/files/1313/5464/2815/application_bulletin_124.pdf, which is expressly incorporated herein by reference.

Comparative Example 7

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

(18) 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.

(19) TABLE-US-00001 TABLE 1 ASHRAE Type Number IUPAC Name Molecular Formula CAS Number CFC R-211 1,1,1,2,2,3,3-Heptachloro-3-fluoropropane C.sub.3FCl.sub.7 422-78-6 CFC R-112a 1,1,1,2-Tetrachloro-2,2-difluoroethane C.sub.2F.sub.2Cl.sub.4 76-11-9 CFC R-213 1,1,1,3,3-Pentachloro-2,2,3- C.sub.3F.sub.3Cl.sub.5 6/5/2354 trifluoropropane 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-113a 1,1,1-Trichlorotrifluoroethane C.sub.2F.sub.3Cl.sub.3 354-58-5 CFC R-112 1,1,2,2-Tetrachloro-1,2-difluoroethane C.sub.2F.sub.2Cl.sub.4 76-12-0 CFC R-113 1,1,2-Trichlorotrifluoroethane C.sub.2F.sub.3Cl.sub.3 76-13-1 CFC R-114a 1,1-Dichlorotetrafluoroethane C.sub.2F.sub.4Cl.sub.2 374-07-2 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-216 1,2-Dichloro-1,1,2,3,3,3- C.sub.3F.sub.6Cl.sub.2 661-97-2 hexafluoropropane CFC R-114 1,2-Dichlorotetrafluoroethane C.sub.2F.sub.4Cl.sub.2 76-14-2 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-heptafluoropropane C.sub.3F.sub.7Cl 422-86-6 CFC R-217ba 2-Chloro-1,1,1,2,3,3,3-heptafluoropropane C.sub.3F.sub.7Cl 76-18-6 CFC R-C317 Chloroheptafluorocyclobutane C.sub.4ClF.sub.7 377-41-3 CFC R-115 Chloropentafluoroethane C.sub.2F.sub.5Cl 76-15-3 CFC R-13 Chlorotrifluoromethane CClF.sub.3 75-72-9 CFC R-12 Dichlorodifluoromethane CCl.sub.2F.sub.2 75-71-8 CFC R-C316 Dichlorohexafluorocyclobutane C.sub.4Cl.sub.2F.sub.6 356-18-3 CFC R-212 Hexachlorodifluoropropane C.sub.3F.sub.2Cl.sub.6 76546-99-3 CFC R-111 Pentachlorofluoroethane C.sub.2FCl.sub.5 354-56-3 CFC R-400 R-/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 CFC R-11 Trichlorofluoromethane CCl.sub.3F 75-69-4 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 HCC R-130a 1,1,1,2-Tetrachloroethane C.sub.2H.sub.2Cl.sub.4 630-20-6 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) HCC R-130 1,1,2,2-Tetrachloroethane C.sub.2H.sub.2Cl.sub.4 79-34-5 HCC R-140 1,1,2-Trichloroethane C.sub.2H.sub.3Cl.sub.3 79-00-5 HCC R-150a 1,1-Dichloroethane C.sub.2H.sub.4Cl.sub.2 75-34-3 HCC R-150 1,2-Dichloroethane C.sub.2H.sub.4Cl.sub.2 107-06-2 HCC R-160 Chloroethane (ethyl chloride) C.sub.2H.sub.5Cl 75-00-3 HCC R-20 Chloroform (Trichloromethane) CHCl.sub.3 67-66-3 HCC R-40 Chloromethane CH.sub.3Cl 74-87-3 HCC R-30 Dichloromethane (Methylene chloride) CH.sub.2Cl.sub.2 75-09-2 HCC R-120 Pentachloroethane C.sub.2HCl.sub.5 76-01-7 HCFC R-221 1,1,1,2,2,3-Hexachloro-3-fluoropropane C.sub.3HFCl.sub.6 422-26-4 HCFC R-121a 1,1,1,2-Tetrachloro-2-fruoroethane C.sub.2HFCl.sub.4 354-11-0 HCFC R-222c 1,1,1,3,3-Pentachloro-2,2-difluoropropane C.sub.3HF.sub.2Cl.sub.5 422-49-1 HCFC R-223cb 1,1,1,3-Tetrachloro-2,2,3-trifluoropropane C.sub.3HF.sub.3Cl.sub.4 422-50-4 HCFC R-232cb 1,1,1,3-Tetrachloro-2,2-difluoropropane C.sub.3H.sub.2F.sub.2Cl.sub.4 677-54-3 HCFC R-224cc 1,1,1-Trichloro-2,2,3,3-tetrafluoropropane C.sub.3HF.sub.4Cl.sub.3 422-51-5 HCFC R-233cc 1,1,1-Trichloro-2,2,3-trifluoropropane C.sub.3H.sub.2F.sub.3Cl.sub.3 131211-71-7 HCFC R-122b 1,1,1-Trichloro-2,2-difluoroethane C.sub.2HF.sub.2Cl.sub.3 354-12-1 HCFC R-131b 1,1,1-Trichloro-2-fruoroethane C.sub.2H.sub.2FCl.sub.3 2366-36-1 HCFC R-121 1,1,2,2-Tetrachloro-1-fluoroethane C.sub.2HFCl.sub.4 354-14-3 HCFC R-122a 1,1,2-Trichloro-1,2-difluoroethane C.sub.2HF.sub.2Cl.sub.3 354-15-4 HCFC R-131a 1,1,2-Trichloro-1-fluoroethane C.sub.2H.sub.2FCl.sub.3 811-95-0 HCFC R-122 1,1,2-Trichloro-2,2-difluoroethane C.sub.2HF.sub.2Cl.sub.3 354-21-2 HCFC R-131 1,1,2-Trichloro-2-fruoroethane C.sub.2H.sub.2FCl.sub.3 359-28-4 HCFC R-223ca 1,1,3,3-Tetrachloro-1,2,2-trifluoropropane C.sub.3HF.sub.3Cl.sub.4 422-52-6 HCFC R-232ca 1,1,3,3-Tetrachloro-2,2-difluoropropane C.sub.3H.sub.2F.sub.2Cl.sub.4 1112-14-7 HCFC R-224cb 1,1,3-Trichloro-1,2,2,3-tetrafluoropropane C.sub.3HF.sub.4Cl.sub.3 422-53-7 HCFC R-233cb 1,1,3-Trichloro-1,2,2-trifluoropropane C.sub.3H.sub.2F.sub.3Cl.sub.3 421-99-8 HCFC R-233ca 1,1,3-Trichloro-2,2,3-trifluoropropane C.sub.3H.sub.2F.sub.3Cl.sub.3 131221-36-8 HCFC R-225cc 1,1-Dichloro-1,2,2,3,3-pentafluoropropane C.sub.3HF.sub.5Cl.sub.2 13474-88-9 HCFC R-234cd 1,1-Dichloro-1,2,2,3-tetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 70192-63-1 HCFC R-123b 1,1-Dichloro-1,2,2-trifluoroethane C.sub.2HF.sub.3Cl.sub.2 812-04-4 HCFC R-243cc 1,1-Dichloro-1,2,2-trifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 7125-99-7 HCFC R-225eb 1,1-Dichloro-1,2,3,3,3-pentafluoropropane C.sub.3HF.sub.5Cl.sub.2 111512-56-2 HCFC R-132c 1,1-Dichloro-1,2-difluoroethane C.sub.2H.sub.2F.sub.2Cl.sub.2 1842-05-3 HCFC R-252ec 1,1-Dichloro-1,2-difluoropropane C.sub.3H.sub.4F.sub.2Cl.sub.2 HCFC R-234fb 1,1-Dichloro-1,3,3,3-tetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 64712-27-2 HCFC R-141b 1,1-Dichloro-1-fluoroethane C.sub.2H.sub.3FCl.sub.2 1717-00-6 HCFC R-234cb 1,1-Dichloro-2,2,3,3-tetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 1/6/4071 HCFC R-243cb 1,1-Dichloro-2,2,3-trifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 70192-70-0 HCFC R-132a 1,1-Dichloro-2,2-difluoroethane C.sub.2H.sub.2F.sub.2Cl.sub.2 471-43-2 HCFC R-252cb 1,1-Dichloro-2,2-difluoropropane C.sub.3H.sub.4F.sub.2Cl.sub.2 1112-01-2 HCFC R-141a 1,1-Dichloro-2-fluoroethane C.sub.2H.sub.3FCl.sub.2 430-53-5 HCFC R-225bb 1,2-Dichloro-1,1,2,3,3-pentafluoropropane C.sub.3HF.sub.5Cl.sub.2 422-44-6 HCFC R-234bc 1,2-Dichloro-1,1,2,3-tetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 149329-26-0 HCFC R-123a 1,2-Dichloro-1,1,2-trifluoroethane C.sub.2HF.sub.3Cl.sub.2 354-23-4 HCFC R-225da 1,2-Dichloro-1,1,3,3,3-pentafluoropropane C.sub.3HF.sub.5Cl.sub.2 431-86-7 HCFC R-132b 1,2-Dichloro-1,1-difluoroethane C.sub.2H.sub.2F.sub.2Cl.sub.2 1649-08-7 HCFC R-252dc 1,2-Dichloro-1,1-difluoropropane C.sub.3H.sub.4F.sub.2Cl.sub.2 HCFC R-234ba 1,2-Dichloro-1,2,3,3-tetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 425-94-5 HCFC R-141 1,2-Dichloro-1-fluoroethane C.sub.2H.sub.3FCl.sub.2 430-57-9 HCFC R-261ba 1,2-Dichloro-2-fluoropropane C.sub.3H.sub.5FCl.sub.2 420-97-3 HCFC R-224ca 1,3,3-Trichloro-1,1,2,2-tetrafluoropropane C.sub.3HF.sub.4Cl.sub.3 422-54-8 HCFC R-225cb 1,3-Dichloro-1,1,2,2,3-pentafluoropropane C.sub.3HF.sub.5Cl.sub.2 507-55-1 HCFC R-234cc 1,3-Dichloro-1,1,2,2-tetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 422-00-5 HCFC R-225ea 1,3-Dichloro-1,1,2,3,3-pentafluoropropane C.sub.3HF.sub.5Cl.sub.2 136013-79-1 HCFC R-243ec 1,3-Dichloro-1,1,2-trifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 149329-27-1 HCFC R-234fa 1,3-Dichloro-1,1,3,3-tetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 76140-39-1 HCFC R-234ca 1,3-Dichloro-1,2,2,3-tetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 70341-81-0 HCFC R-243ca 1,3-Dichloro-1,2,2-trifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 67406-68-2 HCFC R-243ea 1,3-Dichloro-1,2,3-trifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 151771-08-3 HCFC R-252ca 1,3-Dichloro-2,2-difluoropropane C.sub.3H.sub.4F.sub.2Cl.sub.2 1112-36-3 HCFC R-226cb 1-Chloro-1,1,2,2,3,3-hexafluoropropane C.sub.3HF.sub.6Cl 422-55-9 HCFC R-235cc 1-Chloro-1,1,2,2,3-pentafluoropropane C.sub.3H.sub.2F.sub.5Cl 679-99-2 HCFC R-124a 1-Chloro-1,1,2,2-tetrafluoroethane C.sub.2HF.sub.4Cl 354-25-6 HCFC R-244cc 1-Chloro-1,1,2,2-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 421-75-0 HCFC R-226ea 1-Chloro-1,1,2,3,3,3-hexafluoropropane C.sub.3HF.sub.6Cl 359-58-0 HCFC R-244ec 1-Chloro-1,1,2,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl HCFC R-133b 1-Chloro-1,1,2-Trifluoroethane C.sub.2H.sub.2F.sub.3Cl 421-04-5 HCFC R-253ec 1-Chloro-1,1,2-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-235fa 1-Chloro-1,1,3,3,3-pentafluoropropane C.sub.3H.sub.2F.sub.5Cl 677-55-4 HCFC R-244fb 1-Chloro-1,1,3,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 2730-64-5 HCFC R-253fc 1-Chloro-1,1,3-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-142b 1-Chloro-1,1-difluoroethane C.sub.2H.sub.3F.sub.2Cl 75-68-3 HCFC R-235ca 1-Chloro-1,2,2,3,3-pentafluoropropane C.sub.3H.sub.2F.sub.5Cl 28103-66-4 HCFC R-244cb 1-Chloro-1,2,2,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 67406-66-0 HCFC R-133 1-Chloro-1,2,2-Trifluoroethane C.sub.2H.sub.2F.sub.3Cl 431-07-2 HCFC R-253cb 1-Chloro-1,2,2-trifluoropropane C.sub.3H.sub.4F.sub.3Cl 70192-76-6 HCFC R-253eb 1-Chloro-1,2,3-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-142a 1-Chloro-1,2-difluoroethane C.sub.2H.sub.3F.sub.2Cl 25497-29-4 HCFC R-262fb 1-Chloro-1,3-difluoropropane C.sub.3H.sub.5F.sub.2Cl HCFC R-151a 1-Chloro-1-fluoroethane C.sub.2H.sub.4ClF 1615-75-4 HCFC R-271fb 1-Chloro-1-fluoropropane C.sub.3H.sub.6FCl HCFC R-133a 1-Chloro-2,2,2-Trifluoroethane C.sub.2H.sub.2F.sub.3Cl 75-88-7 HCFC R-253ca 1-Chloro-2,2,3-trifluoropropane C.sub.3H.sub.4F.sub.3Cl 56758-54-4 HCFC R-262ca 1-Chloro-2,2-difluoropropane C.sub.3H.sub.5F.sub.2Cl 420-99-5 HCFC R-225aa 2,2-Dichloro-1,1,1,3,3-pentafluoropropane C.sub.3HF.sub.5Cl.sub.2 128903-21-9 HCFC R-234ab 2,2-Dichloro-1,1,1,3-tetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 149329-24-8 HCFC R-123 2,2-Dichloro-1,1,1-trifluoroethane C.sub.2HF.sub.3Cl.sub.2 306-83-2 HCFC R-234aa 2,2-Dichloro-1,1,3,3-tetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 17705-30-5 HCFC R-225ba 2,3-Dichloro-1,1,1,2,3-pentafluoropropane C.sub.3HF.sub.5Cl.sub.2 422-48-0 HCFC R-234bb 2,3-Dichloro-1,1,1,2-tetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 149329-25-9 HCFC R-234da 2,3-Dichloro-1,1,1,3-tetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 146916-90-7 HCFC R-243da 2,3-Dichloro-1,1,1-trifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 338-75-0 HCFC R-226ba 2-Chloro-1,1,1,2,3,3-hexafluoropropane C.sub.3HF.sub.6Cl 51346-64-6 HCFC R-124 2-Chloro-1,1,1,2-tetrafluoroethane C.sub.2HF.sub.4Cl 2837-89-0 HCFC R-244bb 2-Chloro-1,1,1,2-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 421-73-8 HCFC R-226da 2-Chloro-1,1,1,3,3,3-hexafluoropropane C.sub.3HF.sub.6Cl 431-87-8 HCFC R-235da 2-Chloro-1,1,1,3,3-pentafluoropropane C.sub.3H.sub.2F.sub.5Cl 134251-06-2 HCFC R-244db 2-Chloro-1,1,1,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 117970-90-8 HCFC R-253bb 2-Chloro-1,1,2-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-244da 2-Chloro-1,1,3,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 19041-02-2 HCFC R-244ba 2-Chloro-1,2,3,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl HCFC R-253ba 2-Chloro-1,2,3-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-271d 2-Chloro-1-fluoropropane C.sub.3H.sub.6FCl HCFC R-271b 2-Chloro-2-fluoropropane C.sub.3H.sub.6FCl 420-44-0 HCFC R-225ca 3,3-Dichloro-1,1,1,2,2-pentafluoropropane C.sub.3HF.sub.5Cl.sub.2 422-56-0 HCFC R-226ca 3-Chloro-1,1,1,2,2,3-hexafluoropropane C.sub.3HF.sub.6Cl 422-57-1 HCFC R-235cb 3-Chloro-1,1,1,2,3-pentafluoropropane C.sub.3H.sub.2F.sub.5Cl 422-02-6 HCFC R-244eb 3-Chloro-1,1,1,2-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-253fb 3-Chloro-1,1,1-trifluoropropane C.sub.3H.sub.4F.sub.3Cl 460-35-5 HCFC R-244ca 3-Chloro-1,1,2,2-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 679-85-6 HCFC R-244ea 3-Chloro-1,1,2,3-tetrafluoropropane C.sub.3H.sub.3F.sub.4Cl HCFC R-253ea 3-Chloro-1,1,2-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-262fa 3-Chloro-1,1-difluoropropane C.sub.3H.sub.5F.sub.2Cl HCFC R-253fa 3-Chloro-1,3,3-trifluoropropane C.sub.3H.sub.4F.sub.3Cl HCFC R-142 Chlorodifluoroethane C.sub.2H.sub.3F.sub.2Cl 25497-29-4 HCFC R-22 Chlorodifluoromethane CHClF.sub.2 75-45-6 HCFC R-262 Chlorodifluoropropane C.sub.3H.sub.5F.sub.2Cl 134190-53-7 HCFC R-151 Chlorofluoroethane C.sub.2H.sub.4ClF 110587-14-9 HCFC R-31 Chlorofluoromethane CH.sub.2FCl 593-70-4 HCFC R-271 Chlorofluoropropane C.sub.3H.sub.6FCl 134190-54-8 HCFC R-226 Chlorohexafluoropropane C.sub.3HF.sub.6Cl 134308-72-8 HCFC R-235 Chloropentafluoropropane C.sub.3H.sub.2F.sub.5Cl 134237-41-5 HCFC R-244 Chlorotetrafluoropropane C.sub.3H.sub.3F.sub.4Cl 134190-50-4 HCFC R-253 Chlorotrifluoropropane C.sub.3H.sub.4F.sub.3Cl 134237-44-8 HCFC R-132 Dichlorodifluoroethane C.sub.2H.sub.2F.sub.2Cl.sub.2 25915-78-0 HCFC R-252 Dichlorodifluoropropane C.sub.3H.sub.4F.sub.2Cl.sub.2 134190-52-6 HCFC R-21 Dichlorofluoromethane CHFCl.sub.2 75-43-4 HCFC R-261 Dichlorofluoropropane C.sub.3H.sub.5FCl.sub.2 134237-45-9 HCFC R-225 Dichloropentafluoropropane C.sub.3HF.sub.5Cl.sub.2 127564-92-5 HCFC R-234 Dichlorotetrafluoropropane C.sub.3H.sub.2F.sub.4Cl.sub.2 127564-83-4 HCFC R-243 Dichlorotrifluoropropane C.sub.3H.sub.3F.sub.3Cl.sub.2 134237-43-7 HCFC R-222 Pentachlorodifluoropropane C.sub.3HF.sub.2Cl.sub.5 134237-36-8 HCFC R-231 Pentachlorofluoropropane C.sub.3H.sub.2FCl.sub.5 134190-48-0 HCFC R-500 R-/152a (73.8/26.2) 73.8%CCl.sub.2F.sub.226.2% C.sub.2H.sub.4F.sub.2 Carrene #7.sup.[2] HCFC R-505 R-/31 (78/22) 78% CCl.sub.2F.sub.222% CH.sub.2FCl HCFC R-408A R-/143a/22 (7 2/46 1/47 2) 7 2% C.sub.2HF.sub.546 1% C.sub.2H.sub.3F.sub.347 2% CHClF.sub.2 FX-10.sup.[2][1] HCFC R-402B R-/290/22 (38 2/2 1/60 2) 38 2% C.sub.2HF.sub.52 1% C.sub.3H.sub.860 2% CHClF.sub.2 HP-81.sup.[2][1] HCFC R-402A R-/290/22 (60 2/2 1/38 2) 60 2% C.sub.2HF.sub.52 1% C.sub.3H.sub.838 2% CHClF.sub.2 HP-80.sup.[2][1] HCFC R-416A R-a/124/600 (59 + .5-1/39.5 + 1, .5/1.5 + 59 + .5, 1% C.sub.2H.sub.2F.sub.439.5 + 1, .5% FRIGC (FR-).sup.[2] 1, .2) C.sub.2HF.sub.4Cl1.5 + 1, .2% C.sub.4H.sub.10 HCFC R-420A R-a/142b (88 + 1, 0/12 + 0, 1) 88 + 1, 0% C.sub.2H.sub.2F.sub.412 + 0, 1% C.sub.2H.sub.3F.sub.2Cl Choice Refrigerant.sup.[1] HCFC R-502 R-/115(48.8/51.2) 48.8% CHClF.sub.251.2% C.sub.2F.sub.5Cl HCFC R-501 R-/12 (75/25) 75% CHClF.sub.225% CCl.sub.2F.sub.2 HCFC R-409A R-/124/142b (60 2/25 2/15 1) 60 2% CHClF.sub.225 2% C.sub.2HF.sub.4Cl15 FX-56.sup.[2][1] 1% C.sub.2H.sub.3F.sub.2Cl HCFC R-409B R-/124/142b (65 2/25 2/10 1) 65 2% CHClF.sub.225 2% C.sub.2HF.sub.4Cl10 FX-57.sup.[2] 1% C.sub.2H.sub.3F.sub.2Cl HCFC R-414B R-/124/600a/142b 50 2% CHClF.sub.239 2% C.sub.2HF.sub.4Cl1.5 Hot Shot,.sup.[2][1] Kar (50 2/39 2/1.5 .5/9.5 + .5-1) .5% C.sub.4H.sub.109.5 + .5, 1% C.sub.2H.sub.3F.sub.2Cl Kool.sup.[2] HCFC R-414A R-/124/600a/142b 51 2% CHClF.sub.228.5 2% C.sub.2HF.sub.4Cl4 GHG-X4,.sup.[2] (51 2/28.5 2/4 .5/16.5 + .5-1) .5% C.sub.4H.sub.1016.5 + .5, 1% C.sub.2H.sub.3F.sub.2Cl Autofrost,.sup.[2] Chill-It.sup.[2] HCFC R-415B R-/152a (25 1/75 1) 25 1% CHClF.sub.275 1% C.sub.2H.sub.4F.sub.2 HCFC R-415A R-/152a (82 1/18 1) 82 1% CHClF.sub.218 1% C.sub.2H.sub.4F.sub.2 HCFC R-401C R-/152a/124 (33 2/15 + .5, 1.5/52 1) 33 2% CHClF.sub.215 + .5, 1.5% C.sub.2H.sub.4F.sub.252 MP-52.sup.[1] 1% C.sub.2HF.sub.4Cl HCFC R-401A R-/152a/124 (53 2/13 + .5, 1.5/34 1) 53 2% CHClF.sub.213 + .5, 1.5% C.sub.2H.sub.4F.sub.234 MP-39.sup.[2][1] 1% C.sub.2HF.sub.4Cl HCFC R-401B R-/152a/124 (61 2/11 + .5, 1.5/28 l) 61 2% CHClF.sub.211 + .5, 1.5% C.sub.2H.sub.4F.sub.228 MP-66.sup.[2][1] 1% C.sub.2HF.sub.4Cl HCFC R-405A R-/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.[2] HCFC R-509[A] R-/218 (44/56) 44% CHClF.sub.256% C.sub.3F.sub.8 Arcton TP5R2.sup.[2] HCFC R-412A R-/218/142b (70 2/5 2/25 1) 70 2% CHClF.sub.25 2% C.sub.3F.sub.825 1% C.sub.2H.sub.3F.sub.2Cl Arcton TP5R.sup.[2] HCFC R-406A R-/600a/142b (55 2/4 1/41 0) 55 2% CHClF.sub.24 1% C.sub.4H.sub.1041 0% C.sub.2H.sub.3F.sub.2Cl GHG.sup.[2][1] HCFC R-406B R-/600a/142b (65 2/4 1/31 0) 65 2% CHClF.sub.24 1% C.sub.4H.sub.1031 0% C.sub.2H.sub.3F.sub.2Cl GHG-HP.sup.[2] HCFC R-503 R-/13 (40.1/59.9) 40.1% CHF.sub.359.9% CClF.sub.3 HCFC R-418A R-0/22/152a (1.5 .5/96 1/2.5 .5) 1.5 .5% C.sub.3H.sub.896 1% CHClF.sub.22.5 .5% C.sub.2H.sub.4F.sub.2 HCFC R-403B R-0/22/218 (5 + .2, 2/56 2/39 0) 5 .2, 2% C.sub.3H.sub.856 2% CHClF.sub.239 0% C.sub.3F.sub.8 ISCEON 69-L.sup.[2] HCFC R-403A R-0/22/218 (5 + .2, 2/75 2/20 0) 5 + .2, 2% C.sub.3H.sub.875 2% CHClF.sub.220 0% C.sub.3F.sub.8 ISCEON 69-S.sup.[2] HCFC R-506 R-/114 (55.1/44.9) 55.1% CH.sub.2FCl44.9% C.sub.2F.sub.4Cl.sub.2 HCFC R-504 R-/115 (48.2/51.8) 48.2% CH.sub.2F.sub.251.8% C.sub.2F.sub.5Cl HCFC R-232 Tetrachlorodifluoropropane C.sub.3H.sub.2F.sub.2Cl.sub.4 134237-39-1 HCFC R-241 Tetrachlorofluoropropane C.sub.3H.sub.3FCl.sub.4 134190-49-1 HCFC R-223 Tetrachlorotrifluoropropane C.sub.3HF.sub.3Cl.sub.4 134237-37-9 HCFC R-242 Trichlorodifluoropropane C.sub.3H.sub.3F.sub.2Cl.sub.3 134237-42-6 HCFC R-251 Trichlorofluoropropane C.sub.3H.sub.4FCl.sub.3 134190-51-5 HCFC R-224 Trichlorotetrafluoropropane C.sub.3HF.sub.4Cl.sub.3 134237-38-0 HCFC R-233 Trichlorotrifluoropropane C.sub.3H.sub.2F.sub.3Cl.sub.3 134237-40-4 HCFO R-1233zd 1-Chloro-3,3,3-trifluoropropene C.sub.3H.sub.2ClF.sub.3 2730-43-0 HCFO R-411A R-0/22/152a (1.5 + 0-1/87.5 + 1.5 + 0, 1% C.sub.3H.sub.687.5 + 2, 0% CHClF.sub.211 + GREENCOOL 2, 0/11 + 0, 1) 0, 1% C.sub.2H.sub.4F.sub.2 G2018a.sup.[2] HCFO R-411B R-0/22/152a (3 + 0, 1/94 + 3 + 0, 1% C.sub.3H.sub.694 + 2, 0% CHClF.sub.23 + GREENCOOL 2, 0/3 + 0, 1) 0, 1% C.sub.2H.sub.4F.sub.2 G2018b.sup.[2] HCFO R-411C R-0/22/152a (3 + 0, 1/95.5 + 3 + 0, 1% C.sub.3H.sub.695.5 + 2, 0% CHClF.sub.21.5 + GREENCOOL 2, 0/1.5 + 0, 1) 0, 1% C.sub.2H.sub.4F.sub.2 G2018c.sup.[2] HCO R-1140 Chloroethylene (vinyl chloride) C.sub.2H.sub.3Cl 75-01-4 HCO R-1130 cis-1,2-Dichloroethylene C.sub.2H.sub.2Cl.sub.2 156-59-2 HCO R-1120 Trichloroethylene (trielene) C.sub.2HCl.sub.3 79-01-6 HFC R-329ccb 1,1,1,2,2,3,3,4,4-Nonafluorobutane C.sub.4HF.sub.9 375-17-7 HFC R-347ccd 1,1,1,2,2,3,3-Heptafluorobutane C.sub.4H.sub.3F.sub.7 662-00-0 HFC R-236cb 1,1,1,2,2,3-Hexafluoropropane C.sub.3H.sub.2F.sub.6 677-56-5 HFC R-227ea 1,1,1,2,3,3,3-Heptafluoropropane C.sub.3HF.sub.7 431-89-0 HFC R-236ea 1,1,1,2,3,3-Hexafluoropropane C.sub.3H.sub.2F.sub.6 431-63-0 HFC R-338eea 1,1,1,2,3,4,4,4-Octafluorobutane C.sub.4H.sub.2F.sub.8 75995-72-1 HFC R-245eb 1,1,1,2,3-Pentafluoropropane C.sub.3H.sub.3F.sub.5 431-31-2 HFC R-134a 1,1,1,2-Tetrafluoroethane C.sub.2H.sub.2F.sub.4 811-97-2 HFC R-236fa 1,1,1,3,3,3-Hexafluoropropane C.sub.3H.sub.2F.sub.6 690-39-1 HFC R-365mfc 1,1,1,3,3-Pentafluorobutane C.sub.4H.sub.5F.sub.5 406-58-6 HFC R-245fa 1,1,1,3,3-Pentafluoropropane C.sub.3H.sub.3F.sub.5 460-73-1 HFC R-143a 1,1,1-Trifluoroethane C.sub.2H.sub.3F.sub.3 420-46-2 HFC R-ca 1,1,2,2,3,3,3-Heptafluoropropane C.sub.3HF.sub.7 2252-84-8 HFC R-245ca 1,1,2,2,3-Pentafluoropropane C.sub.3H.sub.3F.sub.5 679-86-7 HFC R-134 1,1,2,2-Tetrafluoroethane C.sub.2H.sub.2F.sub.4 359-35-3 HFC R-254cb 1,1,2,2-Tetrafluoropropane C.sub.3H.sub.4F.sub.4 40723-63-5 HFC R-245ea 1,1,2,3,3-Pentafluoropropane C.sub.3H.sub.3F.sub.5 24270-66-4 HFC R-143 1,1,2-Trifluoroethane C.sub.2H.sub.3F.sub.3 430-66-0 HFC R-152a 1,1-Difluoroethane C.sub.2H.sub.4F.sub.2 75-37-6 HFC R-236me 1,2,2,2-Tetrafluoroethyl difluoromethyl C.sub.3H.sub.2F.sub.6O 57041-67-5 ether HFC R-152 1,2-Difluoroethane C.sub.2H.sub.4F.sub.2 624-72-6 HFC R-E143a 2,2,2-Trifluoroethyl methyl ether C.sub.3H.sub.5F.sub.3O 460-43-5 HFC R-E134 Bis(difluoromethyl)ether C.sub.2H.sub.2F.sub.4O 1691-17-4 HFC R-32 Difluoromethane CH.sub.2F.sub.2 75-10-5 HFC R-245qc Difluoromethyl 1,1,2-trifluoroethyl ether C.sub.3H.sub.3F.sub.5O 69948-24-9 HFC R-245mf Difluoromethyl 2,2,2-trifluoroethyl ether C.sub.3H.sub.3F.sub.5O 1885-48-9 HFC R-272 Difluoropropane C.sub.3HeF.sub.2 HFC R-161 Fluoroethane C.sub.2H.sub.5F 353-36-6 HFC R-41 Fluoromethane CH.sub.3F 593-53-3 HFC R-281 Fruoropropane C.sub.3H.sub.7F HFC R-FE-36 Hexafluoropropane C.sub.3H.sub.2F.sub.6 359-58-0 HFC R-254pc Methyl 1,1,2,2-tetrafluoroethyl ether C.sub.3H.sub.4F.sub.4O 425-88-7 HFC R-245mc Methyl pentafluoroethyl ether C.sub.3H.sub.3F.sub.5O 22410-44-2 HFC R-143m Methyl trifluoromethyl ether C.sub.2H.sub.3F.sub.3O 421-14-7 HFC R-E125 Pentafluorodimethyl ether C.sub.2HF.sub.5O 3822-68-2 HFC R-125 Pentafluoroethane C.sub.2HF.sub.5 354-33-6 HFC R-245cb Pentafluoropropane C.sub.3H.sub.3F.sub.5 1814-88-6 HFC R-347mmy Perfluoroisopropyl methyl ether C.sub.4H.sub.3F.sub.7O 22052-84-2 HFC R-347mcc Perfluoropropyl methyl ether C.sub.4H.sub.3F.sub.7O 375-03-1 HFC R-421A R-/134a (58 1/42 1) 58 1% C.sub.2HF.sub.542 1% C.sub.2H.sub.2F.sub.4 Choice R421A.sup.[1] HFC R-421B R-/134a (85 1/15 1) 85 1% C.sub.2HF.sub.515 1% C.sub.2H.sub.2F.sub.4 Choice 421B.sup.[1] HFC R-417A R-/134a/600 (46.6 1.1/50 1/3.4 + .1, .4) 46.6 1.1% C.sub.2HF.sub.550 1% C.sub.2H.sub.2F.sub.43.4 + ISCEON 59,.sup.[2] NU- .1, .4% C.sub.4H.sub.10 22.sup.[2] HFC R-417B R-/134a/600 (79 1/18.3 1/2.7 + .1, .5) 79 1% C.sub.2HF.sub.518.3 1% C.sub.2H.sub.2F.sub.42.7 + .1, .5% C.sub.4H.sub.10 HFC R-437A R-/134a/600/601 (19.5 + .5, 1.8/78.5 + 19.5 + .5, 1.8% C.sub.2HF.sub.578.5 + 1.5, .7% 1.5, .7/1.4 + .1, .2/.6 + .1, .2) C.sub.2H.sub.2F.sub.41.4 + .1, .2% C.sub.4H.sub.10.6 + .1, .2% C.sub.5H.sub.12 HFC R-426A R-/134a/600/601a (5.1 1/93 1/1.3 + 5.1 1% C.sub.2HF.sub.593 1% C.sub.2H.sub.2F.sub.41.3 + RS-24 (new .1, .2/.6 + .1, .2) .1, .2% C.sub.4H.sub.10.6 + .1, .2% C.sub.5H.sub.12 comp.).sup.[1] HFC R-422B R-/134a/600a (55 1/42 1/3 + .1, .5) 55 1% C.sub.2HF.sub.542 1% C.sub.2H.sub.2F.sub.43 + ICOR XAC1.sup.[1] .1, .5% C.sub.4H.sub.10 HFC R-422D R-/134a/600a (65.1 + 65.1 + .9, 1.1% C.sub.2HF.sub.531.5 ISCEON MO29.sup.[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-422C R-/134a/600a (82 1/15 1/3 + .1, .5) 82 1% C.sub.2HF.sub.515 1% C.sub.2H.sub.2F.sub.43 + ICOR XLT1.sup.[1] .1, .5% C.sub.4H.sub.10 HFC R-422A R-/134a/600a (85.1 1/11.5 1/3.4 + .1, .4) 85.1 1% C.sub.2HF.sub.511.5 1% C.sub.2H.sub.2F.sub.43.4 + ISCEON 79.sup.[1] .1, .4% C.sub.4H.sub.10 HFC R-424A R-/134a/600a/600/601a 50.5 1% C.sub.2HF.sub.547 1% C.sub.2H.sub.2F.sub.41.9 + RS-44 (new (50.5 1/47 1/.9 + .1, .2/1 + .3, .1% C.sub.4H.sub.10.6 + .1, .2% C.sub.5H.sub.12 comp.).sup.[1] .1, +.2/.6 + .1, .2) HFC R-419A R-/134a/E170 (77 1/19 1/4 1) 77 1% C.sub.2HF.sub.519 1% C.sub.2H.sub.2F.sub.44 1% C.sub.2H.sub.6O HFC R-507[A] R-/143a (50/50) 50% C.sub.2HF.sub.550% C.sub.2H.sub.3F.sub.3 AZ-50.sup.[2][1] HFC R-404A R-/143a/134a (44 2/52 1/4 2) 44 2% C.sub.2HF.sub.552 1% C.sub.2H.sub.3F.sub.34 2% C.sub.2H.sub.2F.sub.4 HP-62,.sup.[2][1] FX-70.sup.[2][1] HFC R-434A R-/143a/134a/600a 63.2 1% C.sub.2HF.sub.518 1% C.sub.2H.sub.3F.sub.3 16 RS-45.sup.[1] (63.2 1/18 1/16 1/2.8 + .1, .2) 1% C.sub.2H.sub.2F.sub.42.8 + .1, .2% C.sub.4H.sub.10 HFC R-428A R-/143a/290/600a (77.5 1/20 1/.6 + 77.5 1% C.sub.2HF.sub.520 1% C.sub.2H.sub.3F.sub.3.6 + RS-52.sup.[1] .1, .2/1.9 + .1, .2) .1, .2% C.sub.3H.sub.81.9 + .1, .2% C.sub.4H.sub.10 HFC R-423A R-a/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-430A R-a/600a (76 1/24 1) 76 1% C.sub.2H.sub.4F.sub.224 1% C.sub.4H.sub.10 HFC R-413A R-/134a/600a (9 1/88 2/3 + 0, 1) 9 1% C.sub.3F.sub.888 2% C.sub.2H.sub.2F.sub.43 + 0, 1% C.sub.4H.sub.10 ISCEON 49.sup.[2] HFC R-508[A] R-/116 (39/61) 39% CHF.sub.361% C.sub.2F.sub.6 Klea 5R3.sup.[2][1] HFC R-508B R-/116 (46/54) 46% CHF.sub.354% C.sub.2F.sub.6 Suva 95.sup.[2][1] HFC R-440A R-0/134a/152a (.6 .1/1.6 .6/97.8 .5) .6 .1% C.sub.3H.sub.81.6 .6% C.sub.2H.sub.2F.sub.497.8 .5% C.sub.2H.sub.4F.sub.2 HFC R-431A R-0/152a (71 1/29 1) 71 1% C.sub.3H.sub.829 1% C.sub.2H.sub.4F.sub.2 HFC R-410B R-/125 (45 1/55 1) 45 1% CH.sub.2F.sub.255 1% C.sub.2HF.sub.5 AC9100.sup.[1] HFC R-410A R-/125 (50 + .5, 1.5/50 + 1.5, .5) 50 + .5, 1.5% CH.sub.2F.sub.250 + AZ-20,.sup.[2] Puron,.sup.[2] 1.5, .5% C.sub.2HF.sub.5 Suva 9100.sup.[2] HFC R-407B R-/125/134a (10 2/70 2/20 2) 10 2% CH.sub.2F.sub.270 2% C.sub.2HF.sub.520 2% C.sub.2H.sub.2F.sub.4 Klea 61.sup.[2] HFC R-407D R-/125/134a (15 2/15 2/70 2) 15 2% CH.sub.2F.sub.215 2% C.sub.2HF.sub.570 2% C.sub.2H.sub.2F.sub.4 HFC R-407A R-/125/134a (20 2/40 2/40 2) 20 2% CH.sub.2F.sub.240 2% C.sub.2HF.sub.540 2% C.sub.2H.sub.2F.sub.4 Klea 60.sup.[2][1] HFC R-407C R-/125/134a (23 2/25 2/52 2) 23 2% CH.sub.2F.sub.225 2% C.sub.2HF.sub.552 2% C.sub.2H.sub.2F.sub.4 Klea 66,.sup.[2] AC9000.sup.[1] HFC R-407E R-/125/134a (25 2/15 2/60 2) 25 2% CH.sub.2F.sub.215 2% C.sub.2HF.sub.560 2% C.sub.2H.sub.2F.sub.4 HFC R-407F R-/125/134a (30 2/30 2/40 2) 30 2% CH.sub.2F.sub.230 2% C.sub.2HF.sub.540 2% C.sub.2H.sub.2F.sub.4 Genetron Performax LT.sup.[1] HFC R-438A R-/125/134a/600/601a (8.5 + 8.5 + .5, 1.5% CH.sub.2F.sub.245 1.5% C.sub.2HF.sub.544.2 KDD5,.sup.[1] ISCEON .5, 1.5/45 1.5/44.2 1.5/1.7 + 1.5% C.sub.2H.sub.2F.sub.41.7 + .1, .2% C.sub.4H.sub.10.6 + MO99.sup.[1] .1, .2/.6 + .1, .2) .1, .2% C.sub.5H.sub.12 HFC R-427A R-/125/143a/134a 15 2% CH.sub.2F.sub.225 2% C.sub.2HF.sub.510 2% Forane 427A.sup.[1] (15 2/25 2/10 2/50 2) C.sub.2H.sub.3F.sub.350 2% C.sub.2H.sub.2F.sub.4 HFC R-439A R-/125/600a (50 1/47 1/3 .5) 50 1% CH.sub.2F.sub.247 1% C.sub.2HF.sub.53 .5% C.sub.4H.sub.10 HFC R-425A R-/134a/227ea (18.5 .5/69.5 .5/12 .5) 18.5 .5% CH.sub.2F.sub.269.5 .5% C.sub.2H.sub.2F.sub.412 .5% C.sub.3HF.sub.7 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 HFC R-429A R-E170/152a/600a (60 1/10 1/30 1) 60 1% C.sub.2H.sub.6O10 1% C.sub.2H.sub.4F.sub.230 1% C.sub.4H.sub.10 HFC R-23 Trifluoromethane (Fluoroform) CHF.sub.3 75-46-7 HFC R-227ca2 Trifluoromethyl 1,1,2,2-tetrafluoroethyl C.sub.3HF.sub.7O 2356-61-8 ether HFC R-227me Trifluoromethyl 1,2,2,2-tetrafluoroethyl C.sub.3HF.sub.7O 2356-62-9 ether HFC R-263 Trifluoropropane C.sub.3H.sub.5F.sub.3 HFO R-1132a 1,1-Difluoroethylene C.sub.2H.sub.2F.sub.2 75-38-7 HFO R-1234ze 1,3,3,3-Tetrafluoropropene C.sub.3H.sub.2F.sub.4 1645-83-6 HFO R-1234yf 2,3,3,3-Tetrafluoropropene C.sub.3H.sub.2F.sub.4 754-12-1 HFO R-1141 Fluoroethylene (vinyl fluoride) C.sub.2H.sub.3F 75-02-5 PCC R-10 Carbon tetrachloride CCl.sub.4 56-23-5 (Tetrachloromethane) PCC R-110 Hexachloroethane C.sub.2Cl.sub.6 67-72-1 .sup.[1]Composition of Refrigerant Blends, www.epa.gov/ozone/snap/refrigerants/refblend.html .sup.[2]Andy's HVAC/R Web Page, users.isp.com/aschoen/refchart.pdf