Due to its low temperature glide about 1.5 approx. (75% less than R-407C and R-427A), it is suitable for a wide range of applications.

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1 TECHNICAL DATA SHEET R434A () Features and uses of R-434A () is a non-flammable HFC mixture. ODP = 0, compatible with traditional mineral lubricants, alkyl benzene and also with synthetic POE, so there is no need to make changes in the installation. It is a "Drop-in" direct replacement for R-22 in both cooling and air conditioning, low and high temperatures, providing an easy and long term solution. Due to its low temperature glide about 1.5 approx. (75% less than R-407C and R-427A), it is suitable for a wide range of applications. It is a simple solution for R-22 facilities with an adjustable expansion mechanism. The molecular structure is different to R-22, so it is necessary to adjust the expansion valve to permit to larger molecules to pass from R-434A () to R-404A, depending on the system. (R-434A) is not recommended, in most cases, for fixed orifices installation working with R-22, RS-44 (R-424A) would be the solution in medium and high temperatures. Since there is no need for expensive and hygroscopic synthetic lubricants, the risk of humidity in the refrigerator equipment is completely avoided. The discharge temperature is significantly lower than R-22, so the problem of oil decomposition is significantly reduced. (R-434A) is the perfect solution to use in Original Equipment (OEM's) due to its high cooling capacity, low compression ratio, similar coefficient of performance, low discharge temperature and compatibility with traditional oils and oils synthetic (POE). Applications R-434A () is adequate as a direct replacement for R-22 in both low and high temperature in a large number of applications. Commercial air conditioning, flooded systems, chillers, industrial cooling process and enclosing multi-tubes. Cold-storage rooms, supermarkets, refrigerated transport, refrigerated warehouses, cooling process, cold drink vending machines, refrigerated cases, milk coolers, ice rinks. Others. See the application guide for more information RS. Service and work terms In the event of a leakage, it can be recharged directly due to the low temperature glide. Only in systems where the leakage is almost the entire load, it is recommended to recover the refrigerant, to perform a vacuum and replace it with virgin refrigerant. Because it is a blend, it must always be transferred in liquid phase or full loads if it is made in gas phase. Since in most cases there is no need to change the existing lubricant, can be used directly as indicated in the pattern conversion. 1

2 Lubricants is compatible with mineral and alkyl benzene oils used with R-22 systems, and polyester lubricants. Despite there is no need to change the lubricant in most cases, it is advisable to follow the directions in relation to the viscosity and lubrication qualities of compressor manufacturers. However, in systems with an extensive and complex piping configuration, or in large volume liquid containers or working with very low temperatures, it may be necessary to add a part of POE. Environmental data None of the components contains chlorine, so that the product has ODP = 0 (ability to deplete the ozone layer). As with all hydro fluorocarbons (HFCs), has a direct warming potential (GWP), but is compensated by its low TEWI-Total Equivalent Warming Impact-(greenhouse effect). Security R-434A () is not toxic or flammable, high security. It belongs to the security classification A1 / group L1. Material compatibility R-434A () is compatible with all materials commonly used in refrigeration systems which have previously worked with R-22. In general, materials compatible with R-22 can be used with. You should check with your computer manufacturer for the equipment adaptation and compatibility of materials. In older facilities that have been operating with R-22, it may be necessary to replace some joints due to the different composition of the, containing HFC's. and Temperature Tables The tables of refrigerant temperature pressure and graphs indicate both liquid point and the point of steam. Bubble temperature: The temperature at which the liquid refrigerant begins to vaporize at given pressure. Below this temperature the refrigerant liquid is sub-cooled. Vapour point: This is the temperature at which the refrigerant vapour begins to condense at the given pressure. Above this temperature, the refrigerant vapour is considered in superheated state. Superheated vapour: To determine evaporator superheat, measure temperature and pressure line suction in evaporator outlet piping. Using P / T tables you can determine pressure point, with pressure measured in suction. Subtract to the point current temperature and this difference is the evaporator superheat. Sub-cooling in cooling liquid: In order to determine the sub-cooling value in the condenser, measure temperature condenser outlet pipe and measure pressure condenser outlet of the same pipe. Using table / Temperature to determine point of fluid from condenser. Subtract measured temperature from boiling point determined and this difference is sub cooling of condenser refrigerant liquid. Note: With the range of refrigerants RS, the average of evaporating and condensing temperatures will be the midpoint between and temperature. 2

3 Components : Chemical Name % By weight N. EC Pentafluoroethane (R-125) 63, ,1,1-Trifluroethane (R-143a) 18, ,1,1,2- Tetrafluoroethane (R-134a) 16, Iso-butane (R-600a) 2, Physical properties: PHYSICAL PROPERTIES: R-434A () R-22 Molecular weight (kg/kmol) 105,30 86,5 Boiling point (1 atm.) (ºC) -44,9 (1) -40,8 Critical temperature (ºC) 77,8 96,10 Critical pressure (bar a) 39,3 49,9 Liquid Density at 25 C (kg/m 3 ) Saturated vapor density at 25 C (kg/m 3 ) 53,1 44,2 Specific heat of liquid at 25 C (kj/kgºc) 1,50 1,26 Specific heat steam at 25 C and 1 atm (kj/kgºc) 1,11 1,18 Steam 25 C (bar a) 11,8 (1) 10,44 Latent heat of vaporization (kj/kgºc) 190 (1) 234 Slip temp. (ºC) Aprox. 1,5 0 Flammability in air at 1 atm %vol. No No ODP 0 0,055 GWP Inhalation exposure (8h/day and 40 h / week (ppm) (1) Bubble Point Remember to consult guidelines for R- 434A () conversion Mollier Diagram -Enthalpy Chart 100 (bara) Enthalpy (kj/kg) Key: saturation line constant entropy line constant temperature line 0 C kj/kg.k constant specific volume m 3 /kg Reference State (IIR): For liquid at 0 0 C Enthalpy = 200 kj/kg Entropy = 1 kj/kg.k 3

4 R424A (RS-44) PRESSURE TABLE (Absolute) TEMPERATURE ( C) TEMPERATURE (oc) (kpa) (kpa) (bara) (bara) (psia) (psia) ,33 38,58 0,45 0,39 6,57 5, ,64 43,34 0,51 0,43 7,34 6, ,44 48,55 0,56 0,49 8,18 7, ,75 54,25 0,63 0,54 9,10 7, ,62 60,47 0,70 0,60 10,09 8, ,07 67,25 0,77 0,67 11,18 9, ,14 74,62 0,85 0,75 12,35 10, ,86 82,61 0,94 0,83 13,61 11, ,23 91,26 1,04 0,91 15,11 13, ,46 100,61 1,14 1,01 16,60 14, ,47 110,70 1,25 1,11 18,19 16, ,28 121,56 1,37 1,22 19,91 17, ,94 133,23 1,50 1,33 21,74 19, ,49 145,76 1,63 1,46 23,71 21, ,97 159,19 1,78 1,59 25,81 23, ,42 173,55 1,93 1,74 28,05 25, ,89 188,90 2,10 1,89 30,43 27, ,41 205,28 2,27 2,05 32,97 29, ,04 222,72 2,46 2,23 35,68 32, ,82 241,29 2,66 2,41 38,54 34, ,79 261,01 2,87 2,61 41,58 37, ,00 281,95 3,09 2,82 44,81 40, ,50 304,15 3,33 3,04 48,21 44, ,33 327,65 3,57 3,28 51,81 47, ,55 352,51 3,84 3,53 55,61 51, ,19 378,78 4,11 3,79 59,62 54, ,31 406,50 4,40 4,07 63,84 58, ,97 435,73 4,71 4,36 68,29 63, ,20 466,53 5,03 4,67 72,96 67, ,71 498,93 5,33 4,99 77,24 72, ,61 533,01 5,73 5,33 83,03 77, ,89 568,80 6,10 5,69 88,43 82, ,96 606,37 6,49 6,06 94,10 87, ,88 645,78 6,90 6,46 100,03 93, ,68 687,07 7,33 6,87 106,24 99, ,45 730,32 7,77 7,30 112,73 105, ,21 775,57 8,24 7,76 119,51 112, ,05 822,88 8,73 8,23 126,59 119, ,00 872,32 9,24 8,72 133,98 126, ,14 923,95 9,77 9,24 141,69 133, ,50 977,84 10,33 9,78 149,71 141, , ,00 10,90 10,34 158,08 149, , ,60 11,50 10,93 166,78 158, , ,70 12,13 11,54 175,84 167, , ,20 12,78 12,17 185,25 176, , ,40 13,45 12,83 0,00 186, , ,20 14,15 13,52 205,22 196, , ,70 14,88 14,24 215,77 206, , ,10 15,64 14,98 226,72 217, , ,40 16,42 15,75 238,09 228,43 4

5 , ,60 17,23 16,56 249,88 240, , ,90 18,08 17,39 262,10 252, , ,40 18,95 18,25 274,78 264, , ,20 19,86 19,15 287,90 277, , ,30 20,79 20,08 301,48 291, , ,80 21,76 21,05 315,55 305, , ,10 22,77 22,05 330,12 319, , ,00 23,81 23,09 345,20 334, , ,80 24,88 24,17 360,80 350, , ,60 26,00 25,29 376,94 366, , ,60 27,15 26,45 393,63 383, , ,00 28,34 27,65 410,92 400, , ,00 29,57 28,90 428,79 419, , ,00 30,85 30,20 447,28 437, , ,30 32,17 31,55 466,41 457, , ,50 33,53 32,97 486,20 477, , ,70 34,94 34,45 506,66 499, , ,30 36,67 36,02 531,76 522,33 (GLIDE):ABOUT 3ºC TEMPERATURE (oc) R424A (RS-44) PRESSURE TABLE (Gauge)TEMPERATURE ( C) (kpa) (kpa) (bara) (bara) (psia) (psia) ,67-61,42-0,55-0,61-8,13-9, ,36-56,66-0,49-0,57-7,36-8, ,56-51,45-0,44-0,51-6,52-7, ,25-45,75-0,37-0,46-5,60-6, ,38-39,53-0,30-0,40-4,61-5, ,93-32,75-0,23-0,33-3,52-4, ,86-25,38-0,15-0,25-2,35-3, ,14-17,39-0,06-0,17-1,09-2, ,23-8,74 0,04-0,09 0,41-1, ,46 0,61 0,14 0,01 1,90-0, ,47 10,70 0,25 0,11 3,49 1, ,28 21,56 0,37 0,22 5,21 2, ,94 33,23 0,50 0,33 7,04 4, ,49 45,76 0,63 0,46 9,01 6, ,97 59,19 0,78 0,59 11,11 8, ,42 73,55 0,93 0,74 13,35 10, ,89 88,90 1,10 0,89 15,73 12, ,41 105,28 1,27 1,05 18,27 15, ,04 122,72 1,46 1,23 20,98 17, ,82 141,29 1,66 1,41 23,84 20, ,79 161,01 1,87 1,61 26,88 23, ,00 181,95 2,09 1,82 30,11 26, ,50 204,15 2,33 2,04 33,51 29, ,33 227,65 2,57 2,28 37,11 32, ,55 252,51 2,84 2,53 40,91 36, ,19 278,78 3,11 2,79 44,92 40, ,31 306,50 3,40 3,07 49,14 44, ,97 335,73 3,71 3,36 53,59 48, ,20 366,53 4,03 3,67 58,26 52, ,71 398,93 4,33 3,99 62,54 57, ,61 433,01 4,73 4,33 68,33 62,59 5

6 2 509,89 468,80 5,10 4,69 73,73 67, ,96 506,37 5,49 5,06 79,40 73, ,88 545,78 5,90 5,46 85,33 78, ,68 587,07 6,33 5,87 91,54 84, ,45 630,32 6,77 6,30 98,03 91, ,21 675,57 7,24 6,76 104,81 97, ,05 722,88 7,73 7,23 111,89 104, ,00 772,32 8,24 7,72 119,28 111, ,14 823,95 8,77 8,24 126,99 119, ,50 877,84 9,33 8,78 135,01 127, ,20 934,00 9,90 9,34 143,38 135, ,20 992,60 10,50 9,93 152,08 143, , ,70 11,13 10,54 161,14 152, , ,20 11,78 11,17 170,55 161, , ,40 12,45 11,83-14,70 171, , ,20 13,15 12,52 190,52 181, , ,70 13,88 13,24 201,07 191, , ,10 14,64 13,98 212,02 202, , ,40 15,42 14,75 223,39 213, , ,60 16,23 15,56 235,18 225, , ,90 17,08 16,39 247,40 237, , ,40 17,95 17,25 260,08 249, , ,20 18,86 18,15 273,20 263, , ,30 19,79 19,08 286,78 276, , ,80 20,76 20,05 300,85 290, , ,10 21,77 21,05 315,42 305, , ,00 22,81 22,09 330,50 320, , ,80 23,88 23,17 346,10 335, , ,60 25,00 24,29 362,24 351, , ,60 26,15 25,45 378,93 368, , ,00 27,34 26,65 396,22 386, , ,00 28,57 27,90 414,09 404, , ,00 29,85 29,20 432,58 423, , ,30 31,17 30,55 451,71 442, , ,50 32,53 31,97 471,50 463, , ,70 33,94 33,45 491,96 484, , ,30 35,67 35,02 517,06 507,63 (GLIDE):ABOUT 3ºC 6

7 Temp (L) Density (L) [C] [Bara] [Bara] R434A () Saturation Properties [kg/m^3] Density [kg/m^3] Volume (L) [liter/kg] Volume [liter/kg] Enthalpy (L) Enthalpy [kj/kg] [kj/kg] Entropy (L) [kj/k-kg] Entropy [kj/k-kg]

8 Temp (L) Density (L) [C] [Bara] [Bara] R434A () Saturation Properties [kg/m^3] Density [kg/m^3] Volume (L) [liter/kg] Volume [liter/kg] Enthalpy (L) Enthalpy [kj/kg] [kj/kg] Entropy (L) [kj/k-kg] Entropy [kj/k-kg]

9 QUESTIONS AND ANSWERS REGARDING R-434A () 1 Q: What is R-434A ()? A: R-434A () is a direct substitute (drop-in) of R-22 in most applications and also without effect on the ozone layer (ODP = 0). 2 Q: What does R-434A () contain? A: R-434A () is a mixture of HFC 134a, HFC 125, R-143a and iso butane (R-600a). 3 Q: Has an ASHRAE numbers and what is its classification? A: Yes it has. has been assigned an ASHRAE number, R-434A is rated A1, which means low toxicity and non-flammability under all fractionation conditions. 4 Q: Is R-434A () subject to a phase-out according to the regulations, such as CFCs and HCFCs? A: No, none of the components of R-434A () is subject to a gradual elimination schedule under the Montreal Protocol or the European regulations. 5 Q: Is R-434A () non-flammable and non-toxic? A: R-434A () is non-toxic and not flammable under all fractionation conditions ASTM It belongs to the group L1. 6 Q: Can R-434A () be used with mineral and alkyl benzene lubricants? A: Yes, there is no need to change to synthetic polyester oil (POE), since it works satisfactorily with traditional lubricants. The return of the oil depends on certain design and operating conditions. In some systems with extensive and complex piping configurations, in flooded evaporators or in systems in which the accumulator of the suction line acts as a low pressure receiver, it is recommended the replacement of all or part (approximately 25%) of oil load of POE compressor. See guidelines for conversion. 7 Q: What is R-434A () main advantage? A: is the only direct substitute for R-22 compatible with mineral oil, to high and low temperatures without loss of cooling capacity. Furthermore, R-434A () has a low temperature glide 1.5 approx. (approx. 75% lower than R-427A and R-407C, approx. 70% lower than R-417A and approx. less than 65% R-422D) so the possibility of fractionation in the event of a leakage is minimum. Because of this, the possibility of ice formation on the evaporator is also reduced, the pressure increases in the condenser, limit the number of applications, etc. Even though the light increase of cooling capacity, the working pressures allow to operate in most cases with the cylinders and other existing elements in the installation without any need to change them. It is the best choice for facilities designed too precisely, in which a loss of cooling capacity would be a problem. It is also perfect for food industries whose facilities working with R-22, and cannot stop production during several days due to the replacement of R-22 by a refrigerant as R-404A, as a direct substitute without losing refrigerating capacity is the best option. 8 Q: Can R-434A () be used to recharge an installation containing R-22? A: The standard recommendation is to not to mix refrigerants. However, because does not form an azeotropic mixture with R-22, the addition of to R-22 in a system will not generate higher pressures. In strictly technical terms, tests have shown that can be added to R-22 with no adverse effects. 9 Q: What is the R-434A () compression ratio? A: High compression ratios can lead to increased energy consumption and damage the compressor. RS- 45 has a compression ratio equal to R-22 commonly used in applications with R Q: Is R-434A () as efficient as R-22? A: The tests show that has a higher coefficient of performance than R-22 and therefore is more energetically efficient. 9

10 11 Q: What tests have been carried out with R-434A (), and what are the results? A: shows results comparable to R-22 in expansion valve systems. is particularly effective at low temperatures. The results showed good oil return to the compressor. 12 Q: What is the R-434A () Glide? A: 1.5 C. approx. 13 Q: Should R-434A () be charged in liquid or gas form? A: Because is a near-azeotropic mixture, the recommendation is to load the system in liquid phase. However, if the entire contents of the bottle must be introduced, it can be charged in gas phase. 14 Q: Has containers of R-434A () dip tube? A: It depends on the type of container. All blue containers of Servei Gas S.A. have it. Should they not have it, it is recommended to reverse the container. 15 Q: Is R-434A () included in the SNAP (U.S. alternatives)? A: Yes, it is. 16 Q: How are R-434A () pressures compared to R-22? A: The pressure discharge is slightly higher than R-22 and similar to R-407C. 17 Q: What is the R-434A () capacity compared to R-22? A: There is no loss of cooling capacity respect to R-22 in high and low temperatures. 18 Q: How is the R-434A () operating temperature compared to R-22? A: The R-434A () temperature discharge is considerably lower than R Q: What are the R-434A () flammability characteristics? A: R-434A () is not flammable at room temperature and atmospheric pressure, and has the same classification as R-410A, R-134a, R-404A, R-409A (FX56), R-507, etc. 20 Q: What are the decomposition products resulting from the R-434A () combustion? A: The decomposition products resulting from R-434A () exposed to a source of high temperature are similar to those formed by R-22 when they are exposed to fire. The decomposition products in each case are irritating and toxic, and breathing apparatus should be used if such a possibility happens. 21 Q: Must R-434A () be taken into account any special precautions? A: No special precautions should be taken with. As with all refrigerants, common sense and good practices are always recommended. The use of hygroscopic synthetic lubricants (POE) can be avoided with the use of, so there is no need to take special care with humidity; however, this has to be always controlled. 22 Q: Is R-434A () compatible with refrigeration and air conditioning systems designed for R-22? A: Yes, R-434A () is compatible with all materials commonly used in systems designed and loaded with R-22. As in R-22, magnesium and zinc alloys should be avoided. 23 Q: Can R-434A () be recovered and recycled? A: Yes, R-434A () can be recovered and reused after a cleaning process, and later delivered to an authorised waste manager for further regeneration. 24 Q: Which is the technical guide to change R-22 to R-434A ()? A: The procedure for the conversion of R-22 to is simple: after having recovered R-22 and evacuating the system, use the same type of lubricant, replace the filter drier and introduce about the same amount of as the original R-22 charge. See guidelines for more information about conversion. 25 Q: What is the price of R-434A () compared to other alternative? A: price is competitive compared to other R-22 alternative. 10

11 26 Q: Is R-434A () approved by the manufacturers of compressors? A: The individual elements that compose are widely used in compressors produced by major manufacturers. 27 Q: What is the coefficient of performance (COP) of R-434A () compared to R-22)? A: Tests show that provides higher COP than R-22, depending on the application and equipment. 28 Q: What is the specification of R-434A ()? A: R-434A () complies with the specifications of refrigerant ARI-700 for all the fluorocarbon refrigerants. 29 Q: What are the effects of high exposure by inhalation of R-434A ()? A: As in the case of all CFC, HCFC and HFC that are the base of refrigerants, prolonged exposure to can produce anaesthetic effects. Very high exposures may cause an abnormal heart rhythm and be fatal as with all CFC, HCFC and HFC. 30 Q: What is the flash point, explosive ignition temperature of R-434A ()? A: R-434A () is listed as a non-flammable as defined in ASHRAE test EN , and therefore has no flash point or explosion limits. The ignition temperature of has not been determined, but is expected to exceed 750 C. 31 Q: Can R-434A () be used in flooded evaporators systems with liquid receivers and centrifugal compressors? A: The results of the test in these applications are encouraging. R-434A () is suitable for using in flooded evaporators and was specially designed for this application. 32 Q: What types of leak detectors should be used with R-434A ()? A: You can use the same leak detectors as in HFC. 33 Q: What would be the effect of R-434A () large release? A: The same as with other refrigerants of the same type, the area should be evacuated immediately. The vapour can be concentrated at ground level and at low poorly ventilated areas so the dispersion can be slow. You must proceed to ventilate the area before entering it. 34 Q: Is R-434A () available in disposable bottles? A: Not in Spain. 35 Q: Can you use R-434A () in R-22 systems and then used with hydrocarbons (HC)? A: Although there are not experiments conducted with hydrocarbon systems designed to replace R-22, we believe would be appropriate for this, although the refrigerant charge mass should be greater. 36 Q: Is R-434A () appropriate to use in new equipment? A: R-434A () has not ODP, it reaches the cooling capacity at high and low temperatures, it can be used with traditional lubricants, low discharge temperature, low slip and it is efficient energetically. 11