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Harp International Limited Gellihirion Industrial Estate, Pontypridd, Rhondda Cynon Taff, CF37 5SX

United Kingdom

Telephone: +44 (0) 1443 842255 Fax: +44 (0) 1443 841805 E-mail: [email protected] Web: http://www.harpintl.com

Registered in England & Wales: Registration No. 02432294

Product Specification

HARP® 134a

ASHRAE Number: R134a CAS Number: 811-97-2 Chemical Name: 1,1,1,2-tetrafluoroethane Chemical Formula: CH2FCF3 ________________________________________________________________________________ Guaranteed Specifications Purity Minimum 99.5 %w/w Water content Maximum 10.0 ppm w/w Non-Condensable Gas (vapour phase) Maximum 1.5 % v/v High boiling residue Maximum 0.01 % w/w Acidity (as HCl) Maximum 1.0 ppm w/w Chloride No visible turbidity Pass Appearance Clear and colourless liquefied gas For toxicological and health and safety information, please consult our Material Safety Data Sheet. Issue No.5 Reviewed by CJH, June 2013

Harp® 134a is a zero ozone depletion (ODP) hydrofluorocarbon (HFC) refrigerant. It is used on its own as a pure refrigerant and as a component in a large number of refrigerant blends. It is widely used in new equipment that would have previously used CFC R12 and can with specific modifications be retrofitted into exiting R12 equipment.

APPLICATIONHarp® 134a applications include automotive air conditioning, chillers, medium temperature commercial refrigeration, domestic refrigeration appliances and transport refrigeration.

PROPERTIES AND PERFORMANCEHarp® 134a is designed to meet the needs of many air conditioning and medium temperature refrigeration systems. Harp® 134a is a single component refrigerant, rated A1 by ASHRAE (lowest levels of toxicity and flammability), has zero ozone depletion potential and a Global Warming Potential of 1430.

LUBRICATIONEither Polyolester (POE) or Polyalkylene glycol (PAG) for auto Air conditioning lubricants must be used with HARP® 134a. It is not miscible with mineral oil or alkylbenzene lubricants found in many systems. When retrofitting, a lubricant flush procedure is necessary to reduce the original oil content below 5% of the total oil charge. New R134a equipment will be charged with the OEM recommended lubricant, ready to use with Harp® 134a.

CHARGINGCharging with Harp® 134a can be done either as a vapour or a liquid. End-users should check with the equipment manufacturers guidelines for specific charging instructions.

RETROFITTINGWhen retrofitting R12 systems to Harp® 134a, it is necessary to replace the existing lubricant with POE oil, except in some automotive retrofit applications, which require PAG oil. In most cases, the mineral oil or alkylbenzene oil levels must be reduced below 5% of the new POE charge. Check with OEMs for any specific recommendations regarding viscosity grades or procedures. Remove as much of the existing lubricant as possible, add POE, and run the system on R12 for some time. When the residual oil concentration is appropriate, remove R12, replace the filter-drier, and charge Harp® 134a.

MATERIAL COMPATIBILITYWhenever retrofitting air conditioning or refrigeration systems, compatibility of system materials must always be taken into consideration. Items such as elastomers, hoses, and filter-driers respond differently to different refrigerants and oils. For these reasons, before performing any refrigerant retrofit, Harp International recommends contacting the OEM for specific recommendations.

Harp® 134a(1,1,1,2-tetrafluoroethane)

Harp International The Complete Worldwide Refrigerant Serviceemail [email protected] Web www.harpintl.com

0071 Pughs HARP 134a A4 2pp.indd 1 06/08/2013 08:39

Harp® 134aTechnical Data

Harp International Limited Gellihirion Industrial Estate, Pontypridd, Rhondda Cynon Taff, CF37 5SX United Kingdom

Telephone +44 (0) 1443 842255 Freephone 0800 134 404 (UK only) Facsimile +44 (0) 1443 841805

email [email protected] Web www.harpintl.com

Harp® 134a BASIC PROPERTIES

Chemical formula CH2FCF

3

Molecular weight 102.0Boiling point at 1 atmosphere -26.08°CCritical temperature 101°CCritical pressure 40.7 bar absolute

Harp® 134a THERMODYNAMIC PROPERTIES

Temperature Pressure Liquid Vapour Liquid Liquid Vapour Vapour Density Density Enthalpy Enthalpy Entropy Entropy (°C) (bar) (kg/m³) (kg/m³) (kJ/kg) (kJ/kg) (kJ/kg.K) (kJ/kg.K)

-40 0.51 1417.7 2.77 148.1 374.0 0.796 1.764

-35 0.66 1403.2 3.52 154.4 377.2 0.822 1.758

-30 0.84 1388.4 4.43 160.8 380.3 0.849 1.752

-26.08 1.013 1376.7 5.26 165.8 382.8 0.869 1.747 -25 1.06 1373.5 5.51 167.2 383.5 0.875 1.746

-20 1.33 1358.3 6.78 173.6 386.6 0.900 1.741

-15 1.64 1342.8 8.29 180.1 389.6 0.926 1.737

-10 2.01 1327.1 10.04 186.7 392.7 0.951 1.733

-5 2.43 1311.1 12.08 193.3 395.7 0.975 1.730

0 2.93 1294.8 14.43 200.0 398.6 1.000 1.727

5 3.50 1278.1 17.13 206.8 401.5 1.024 1.725

10 4.15 1261.0 20.23 213.6 404.3 1.049 1.722

15 4.88 1243.4 23.76 220.5 407.1 1.072 1.720

20 5.72 1225.3 27.78 227.5 409.8 1.096 1.718

25 6.65 1206.7 32.35 234.6 412.3 1.120 1.716

30 7.70 1187.5 37.54 241.7 414.8 1.144 1.715

35 8.87 1167.5 43.42 249.0 417.2 1.167 1.713

40 10.17 1146.7 50.09 256.4 419.4 1.191 1.711

45 11.60 1125.1 57.66 263.9 421.5 1.214 1.709

50 13.18 1102.3 66.27 271.6 423.4 1.238 1.707

55 14.92 1078.3 76.10 279.5 425.2 1.261 1.705

60 16.82 1052.9 87.38 287.5 426.6 1.285 1.702

65 18.90 1025.6 100.40 295.8 427.8 1.309 1.699

70 21.17 996.3 115.57 304.3 428.7 1.333 1.696

75 23.64 964.1 133.49 313.1 429.0 1.358 1.691

80 26.33 928.2 155.08 322.4 428.8 1.384 1.685

85 29.26 887.2 181.85 332.2 427.8 1.410 1.677

0071 Pughs HARP 134a A4 2pp.indd 2 06/08/2013 08:39


United Kingdom




HARP® 404A

ASHRAE Number: R404A Composition: Component name Chemical Formula CAS Number Composition 1,1,1-Trifluoroethane (R143a) CH3CF3 420-46-2 52 +/- 1 %w/w Pentafluoroethane (R125) CHF2CF3 354-33-6 44 +/- 2 %w/w 1,1,1,2-Tetrafluoroethane (R134a) CH2FCF3 811-97-2 4 +/- 2 %w/w ________________________________________________________________________________ Guaranteed Specifications Purity Minimum 99.5 %w/w Water content Maximum 10.0 ppm w/w Non-Condensable Gas (vapour phase) Maximum 1.5 % v/v High boiling residue Maximum 0.01 % w/w Acidity (as HCl) Maximum 1.0 ppm w/w Chloride No visible turbidity Pass Appearance Clear and colourless liquefied gas For toxicological and health and safety information, please consult our Material Safety Data Sheet. Issue No.8 Reviewed by CJH, June 2013

Harp® 404A is a zero ozone depletion (ODP) hydrofluorocarbon (HFC) refrigerant blend. Harp® 404A is a ternary blend of R125, R143a and R134a (44%/52%/4%). It has been formulated to closely match the properties of CFC R502. It is widely used in new equipment that would have previously used R502 and can with specific modifications be retrofitted into exiting R502 equipment.

APPLICATIONHarp® 404A applications include medium and low temperature refrigeration systems such as food display and storage cabinets, cold storage rooms, ice machines, refrigerated transportation and process refrigeration. Since Harp® 404A has similar properties to R502, it is possible (with modifications) to use it in existing R502 systems.

PROPERTIES AND PERFORMANCEHarp® 404A is designed to meet the needs of many new and existing refrigeration systems. Harp® 404A is a zeotropic HFC refrigerant blend rated A1 by ASHRAE (lowest levels of toxicity and flammability), having zero ozone depletion potential and a Global Warming Potential of 3922.

LUBRICATIONPOE lubricants must be used with Harp® 404A since it is not miscible with mineral or alkyl benzene lubricants found in most old R502 systems. When retrofitting, a lubricant flushing procedure is necessary to reduce the original oil content below 5%. For refrigeration systems using an oil separator, multiple oil flushes may not be required. New R404A equipment will be charged with the OEM recommended lubricant, ready to use with Harp® 404A.

CHARGINGDue to the zeotropic nature of Harp® 404A, it should be charged as a liquid to prevent fractionation (changes in refrigerant composition due to vapour charging). In situations where vapour is normally charged into a system, a valve should be installed in the charging line to flash the liquid to vapour while charging. Testing shows that fractionation due to system leaks is typically not so problematic for R404A. The leak should be repaired and the charge topped-off.

RETROFITTINGWith the correct modifications Harp® 404A can be used to retrofit existing R502 systems. The physical and thermodynamic properties of the blend result in similar performance to R502 when used as a retrofit but it is not intended to be a direct “drop-in” for R502 systems due its higher operating pressures and material compatibility issues.

MATERIAL COMPATIBILITYWhenever retrofitting air-conditioning or refrigeration systems, compatibility of system materials must always be taken into consideration. Items such as elastomers, hoses, and filter-driers respond differently to different refrigerants and oils. For these reasons, before performing any refrigerant retrofit, Harp International recommends contacting the OEM for specific recommendations.

Harp® 404A


0071 Pughs HARP 404A A4 2pp.indd 1 25/09/2013 09:22

Harp® 404ATechnical Data




Harp® 404A BASIC PROPERTIES

Chemical formula R125: CHF2CF3 (44% by weight R143a: CH3CF3 (52% by weight) R134a: CH

2FCF

3 (4% by weight)

Molecular weight 97.6 Boiling point at 1 atmosphere -46.2°CTemperature glide at 1 atm. 0.7 K Critical temperature 72.1°C Critical pressure 37.3 bar absolute

Harp® 404A THERMODYNAMIC PROPERTIES

Absolute Bubble Dew Liquid Vapour Liquid Vapour Liquid Vapour Pressure Temperature Temperature Density Density Enthalpy Density Entropy Entropy (bar) (°C) (°C) (kg/m³) (kg/m³) (kJ/kg) (kJ/kg) (kJ/kg.K) (kJ/kg.K)

0.5 -59.9 -59.1 1347.7 2.8 120.8 330.5 0.746 1.728 0.6 -56.6 -55.8 1337.7 3.4 125.0 332.5 0.765 1.722 0.7 -53.6 -52.8 1328.9 3.9 128.6 334.3 0.782 1.717 0.8 -51.0 -50.3 1321.0 4.4 131.8 335.9 0.796 1.714 0.9 -48.7 -47.9 1313.8 4.9 134.8 337.3 0.809 1.710 1.0 -46.5 -45.7 1307.1 5.4 137.5 338.6 0.821 1.708 1.013 -46.2 -45.5 1306.3 5.5 137.8 338.8 0.823 1.707 1.5 -37.7 -37.0 1279.6 7.9 148.6 343.8 0.869 1.698 2.0 -30.9 -30.3 1258.0 10.4 157.2 347.8 0.905 1.691 2.5 -25.4 -24.8 1239.9 12.9 164.4 351.0 0.935 1.687 3.0 -20.6 -20.0 1223.9 15.4 170.7 353.7 0.959 1.683 3.5 -16.4 -15.9 1209.6 17.9 176.2 356.0 0.981 1.681 4.0 -12.7 -12.1 1196.5 20.4 181.2 358.0 1.000 1.678 4.5 -9.3 -8.7 1184.4 22.9 185.8 359.8 1.017 1.676 5.0 -6.2 -5.6 1173.0 25.4 190.0 361.5 1.033 1.675 5.5 -3.2 -2.7 1162.3 27.9 194.0 363.0 1.048 1.673 6.0 -0.5 0.0 1152.0 30.5 197.8 364.3 1.062 1.672 6.5 2.0 2.5 1142.3 33.0 201.3 365.6 1.074 1.671 7.0 4.4 4.9 1132.9 35.6 204.7 366.7 1.086 1.670 7.5 6.7 7.2 1123.8 38.2 207.9 367.8 1.098 1.669 8.0 8.9 9.3 1115.1 40.8 211.0 368.8 1.109 1.668 8.5 10.9 11.4 1106.5 43.5 214.0 369.7 1.119 1.667 9.0 12.9 13.4 1098.3 46.2 216.8 370.6 1.129 1.666 9.5 14.8 15.3 1090.2 48.9 219.6 371.4 1.138 1.665 10.0 16.6 17.1 1082.2 51.6 222.3 372.1 1.147 1.664 11.0 20.1 20.5 226.4 354.2 227.4 373.5 1.165 1.662 12.0 23.3 23.7 231.1 355.5 232.3 374.6 1.181 1.661 13.0 26.4 26.8 235.6 356.7 236.9 375.7 1.196 1.659 14.0 29.2 29.6 240.0 357.8 241.3 376.5 1.210 1.657 15.0 31.9 32.3 244.1 358.8 245.6 377.3 1.224 1.656 16.0 34.5 34.9 248.1 359.6 249.7 377.9 1.237 1.654 17.0 37.0 37.3 252.0 360.3 253.7 378.5 1.250 1.652 18.0 39.3 39.7 255.7 361.0 257.6 378.9 1.262 1.650 19.0 41.6 41.9 259.4 361.5 261.3 379.2 1.274 1.648 20.0 43.8 44.1 262.9 362.0 265.0 379.4 1.285 1.646 21.0 45.8 46.2 266.4 362.4 268.7 379.6 1.296 1.644 22.0 47.9 48.2 269.8 362.7 272.2 379.6 1.307 1.641 23.0 49.8 50.1 273.2 362.9 275.7 379.5 1.317 1.639 24.0 51.7 52.0 276.5 363.0 279.2 379.3 1.328 1.636 25.0 53.5 53.8 279.7 363.0 282.6 379.1 1.338 1.633 26.0 55.3 55.5 283.0 363.0 286.0 378.7 1.348 1.630 27.0 57.0 57.2 286.2 362.8 289.4 378.1 1.358 1.627 28.0 58.6 58.9 289.4 362.5 292.8 377.5 1.368 1.623 29.0 60.2 60.5 292.6 362.0 296.2 376.7 1.378 1.619 30.0 61.8 62.0 295.9 361.4 299.7 375.7 1.388 1.615 31.0 63.3 63.5 299.2 360.6 303.2 374.5 1.398 1.610 32.0 64.8 65.0 302.5 359.6 306.8 373.0 1.408 1.604 33.0 66.3 66.4 306.0 358.4 310.5 371.2 1.419 1.597 34.0 67.7 67.8 309.7 356.7 314.5 369.0 1.430 1.590 35.0 69.0 69.2 313.7 354.4 318.8 366.0 1.442 1.580



United Kingdom




HARP® 407A

ASHRAE Number: R407A Composition: Component name Chemical Formula CAS Number Composition Difluoromethane (R32) CH2F2 75-10-5 20 +/- 1 %w/w Pentafluoroethane (R125) CHF2CF3 354-33-6 40 +/- 2 %w/w 1,1,1,2-Tetrafluoroethane (R134a) CH2FCF3 811-97-2 40 +/- 2 %w/w ________________________________________________________________________________ Guaranteed Specifications Purity Minimum 99.5 %w/w Water content Maximum 10.0 ppm w/w Non-Condensable Gas (vapour phase) Maximum 1.5 % v/v High boiling residue Maximum 0.01 % w/w Acidity (as HCl) Maximum 1.0 ppm w/w Chloride No visible turbidity Pass Appearance Clear and colourless liquefied gas For toxicological and health and safety information, please consult our Material Safety Data Sheet. Issue No.3 Reviewed by CJH, September 2012

HARP® 407A


HARP® 407A is a zero ozone depletion (ODP) hydrofluorocarbon (HFC) refrigerant blend. HARP® 407A is a ternary blend of R32, R125 and R134a (20%/40%/40%). It is widely used in new equipment that would have previously used CFC R502, HFC R404A and HCFC R22.

APPLICATIONOriginally designed to replace R502, HARP® 407A therefore matches the properties and performance of both R502 and R404A and is suitable for use in medium and low temperature refrigeration systems typically found in supermarkets, food processing, cold storage and industrial sectors where the much reduced direct Global Warming Potential (GWP) offers significant environmental advantages over R404A. With modifications it can be retrofitted into existing R404A.

Its thermo-physical properties are also broadly similar to R22 and therefore offers a zero ODP and moderate GWP alternative in refrigeration systems and chillers that would have previously used R22. With modifications it can be retrofitted into existing R22 systems.

It is not recommended for use in systems with flooded evaporators.

PROPERTIES AND PERFORMANCEHARP® 407A is designed to meet the needs of many types of new and existing refrigeration systems. HARP® 407A is a zeotropic HFC refrigerant blend, which is rated A1 by ASHRAE (lowest levels of toxicity and flammability), having zero Ozone Depletion Potential and a Global Warming Potential of 2107.

As a replacement for R404A, HARP® 407A is the ideal candidate having a similar refrigerating capacity across the range of low and medium evaporating temperature conditions and offers a distinct advantage with regard to the Coefficient of Performance (COP). The improved energy efficiency and reduced direct GWP help contribute to reduced running costs and a reduction in carbon the footprint in many application areas.

As a replacement for R22, HARP® 407A is a close match to R22’s capacities and mass flow rates, with the mass flow rate required for each kilowatt of refrigeration within 10% of that required for R22. This makes it well suited as a retrofit for R22 in supermarket and food storage applications. Additionally, HARP® 407A is one of the more energy efficient R22 retrofit options available for refrigeration applications. Discharge temperatures of HARP® 407A are significantly lower than those seen with R22 though system pressures for HARP® 407A are slightly higher than R22, particularly in high ambient environments.

HARP® 407A is also the perfect solution for new refrigeration systems that would have previously used R22 offering zero ODP and a moderate direct GWP.




HARP® 407AThermodynamic Properties

Absolute Bubble Dew Liquid Vapour Liquid Vapour Liquid Vapour Pressure Temperature Temperature Density Density Enthalpy Density Entropy Entropy (bar) (°C ) (°C) (kg/m3) (kg/m3) (kJ/kg) (kJ/kg) (kJ/kg.K) (kJ/kg.K)

0.5 -58.6 -51.9 1445.60 2.51 122.7 367.7 0.684 1.810 0.6 -55.2 -48.7 1435.30 2.98 126.9 369.7 0.703 1.802 0.7 -52.3 -45.8 1426.40 3.45 130.6 371.3 0.720 1.796 0.8 -49.8 -43.3 1418.30 3.91 133.9 372.8 0.735 1.790 0.9 -47.4 -41.0 1411.00 4.37 136.9 374.2 0.748 1.786 1.0 -45.3 -38.9 1404.20 4.82 139.6 375.4 0.760 1.782 1.013 -45.01 -38.6 1403.37 4.88 140.6 376.2 0.862 1.882 1.5 -36.6 -30.3 1376.40 7.07 150.9 380.3 0.808 1.766 2.0 -29.9 -23.8 1354.60 9.29 159.6 383.9 0.845 1.756 2.5 -24.5 -18.4 1336.30 11.50 166.8 386.8 0.874 1.749 3.0 -19.8 -13.8 1320.30 13.70 173.0 389.2 0.898 1.743 3.5 -15.7 -9.8 1306.00 15.90 178.5 391.3 0.920 1.738 4.0 -12.0 -6.2 1293.00 18.10 183.5 393.1 0.939 1.733 4.5 -8.6 -2.9 1281.00 20.30 188.1 394.7 0.956 1.730 5.0 -5.6 0.1 1269.70 22.51 192.3 396.2 0.972 1.726 5.5 -2.7 2.9 1259.10 24.73 196.3 397.5 0.986 1.723 6.0 0.0 5.5 1249.10 26.96 200.0 398.7 1.000 1.721 6.5 2.5 7.9 1239.50 29.21 203.5 399.8 1.012 1.718 7.0 4.8 10.2 1230.30 31.46 206.8 400.8 1.024 1.716 7.5 7.1 12.4 1221.50 33.73 210.0 401.7 1.036 1.714 8.0 9.2 14.5 1212.90 36.01 213.0 402.6 1.046 1.712 8.5 11.2 16.5 1204.70 38.31 215.9 403.4 1.056 1.710 9.0 13.2 18.4 1196.70 40.62 218.7 404.1 1.066 1.708 9.5 15.0 20.2 1188.90 42.96 221.4 404.8 1.075 1.706 10.0 16.8 21.9 1181.30 45.31 224.1 405.4 1.084 1.705 11.0 20.2 25.2 1166.50 50.06 229.1 406.6 1.101 1.701 12.0 23.4 28.3 1152.40 54.91 233.8 407.6 1.117 1.698 13.0 26.4 31.2 1138.70 59.84 238.3 408.5 1.132 1.696 14.0 29.2 33.9 1125.50 64.86 242.6 409.2 1.146 1.693 15.0 31.9 36.5 1112.50 69.99 246.8 409.8 1.159 1.690 16.0 34.4 38.9 1099.90 75.22 250.7 410.4 1.172 1.687 17.0 36.8 41.3 1087.40 80.57 254.6 410.8 1.184 1.685 18.0 39.2 43.5 1075.10 86.05 258.3 411.2 1.196 1.682 19.0 41.4 45.6 1063.00 91.65 262.0 411.5 1.207 1.679 20.0 43.5 47.7 1051.00 97.40 265.5 411.7 1.218 1.677 21.0 45.6 49.7 1039.10 103.30 268.9 411.8 1.228 1.674 22.0 47.6 51.6 1027.20 109.36 272.3 411.9 1.239 1.671 23.0 49.5 53.4 1015.40 115.59 275.6 411.9 1.249 1.669 24.0 51.4 55.2 1003.60 122.02 278.9 411.8 1.258 1.666 25.0 53.2 56.9 991.70 128.64 282.1 411.7 1.268 1.663 26.0 55.0 58.6 979.76 135.49 285.2 411.5 1.277 1.660 27.0 56.7 60.2 967.73 142.57 288.3 411.2 1.286 1.657 28.0 58.4 61.8 955.58 149.92 291.4 410.8 1.295 1.654 29.0 60.0 63.3 943.26 157.56 294.4 410.4 1.304 1.651 30.0 61.6 64.8 930.73 165.52 297.5 409.9 1.313 1.647 31.0 63.1 66.2 917.94 173.83 300.5 409.3 1.322 1.644 32.0 64.6 67.6 904.85 182.54 303.5 408.6 1.330 1.640 33.0 66.1 69.0 891.38 191.70 306.5 407.8 1.339 1.636 34.0 67.5 70.3 877.46 201.37 309.6 406.9 1.347 1.632 35.0 68.9 71.6 862.98 211.64 312.6 405.9 1.356 1.628

0071 Pughs HARP 407a A4 4pp.indd 1-2 25/04/2013 09:36

LUBRICATIONPOE lubricants must be used with HARP® 407A since it is not miscible with mineral or alkyl benzene lubricants. As with many HFC blends, retrofitting HARP® 407A will require a change to a polyolester lubricant (POE) to ensure reliable oil return and circulation throughout the system. When retrofitting, a lubricant flushing procedure is necessary to reduce the original oil content below 5% of the new POE charge. For refrigeration systems using an oil separator, multiple oil flushes may not be required. New R407A equipment will be charged with the OEM recommended lubricant, ready to use with HARP® 407A.

CHARGINGDue to the zeotropic nature of HARP® 407A, it should be charged into the system as a liquid to prevent fractionation (changes in refrigerant composition due to vapour charging). In situations where vapour is normally charged into a system, a valve should be installed in the charging line to flash the liquid to vapour while charging.

RETROFITTINGHARP® 407A can be used to retrofit existing R22 and R404A systems in positive displacement, direct expansion refrigeration and air conditioning equipment.

HARP® 407A retrofit procedures are straightforward and similar to those of other HCFC and HFC system retrofits. Pipework and expansion valves can be equivalent to those of R22 and are within the range of R404A systems operation. HARP® 407A should not be used in centrifugal chillers or equipment that uses a flooded evaporator due to its high temperature glide.

MATERIAL COMPATIBILITYWhenever retrofitting air conditioning or refrigeration systems, compatibility of system materials must always be taken into consideration. Items such as elastomers, hoses, and filter-driers respond differently to different refrigerants and oils. For these reasons, before performing any refrigerant retrofit, Harp International recommends contacting the OEM for specific recommendations.

HARP® 407A COMPARISON WITH R22 and R404A

R404A to HARP® 407A RETROFIT PROCEDUREWhilst HARP® 407A is a good match for R404A, check OEM recommendations to ensure the existing system design is suitable, including system capacities, relief valve sizing and equipment seal material compatibility.

Like R404A, HARP® 407A is a HFC refrigerant and a POE lubricant will be required. Whilst it is likely that the same lubricant may be suitable for use with both, R404A and HARP® 407A, check with the compressor manufacturer.

SYSTEM PREPARATION• Record the system performance to obtain a baseline prior

to retrofit, e.g. suction and discharge pressures, discharge temperature, temperatures in and out of the condenser and evaporator and the energy consumption if possible.

• Check the system service history for any on-going issues and to highlight any regular maintenance activities that may need to be undertaken.

• Remove the R404A from the system and record the system charge weight.

• Check and repair any existing leaks on the system.• Check condition of compressor lubricant.• Replace all seals on joints that have been opened and on the

liquid receiver.• Replace receiver float seal.• Repair or replace old solenoid valves and ball valves to

minimise leaks.• Replace system filter drier.• Evacuate the system to at least 1 mbar and perform a system

strength pressure test with oxygen free Nitrogen in accordance with EN 378.

• If system fails the strength test repair any faults or replace any defective components and re-test.

• Perform a triple evacuation procedure, each time ensuring a vacuum of 1 mbar is pulled and held. Repair any leaks.

• Reset pressure controls for HARP® 407A. Pressure/temperature data is on Page 4 of this product information sheet.

• Charge the system with HARP® 407A. Typically the charge will be around 95% that of the original R404A charge weight.

• Note: If charging into the suction line on a running system the liquid from the cylinder must be vapourised before entering the system.

SYSTEM START UP• Start the system and check for any leaks.• Set the expansion valve settings. For calculating the sub-

cooling use the HARP® 407A bubble point as the saturation temperature. For calculating the superheat use the HARP® 407A dew point as the saturation temperature.

• Monitor refrigerant and oil levels and adjust amounts as required.

• Record performance data and compare to that obtained for baseline performance.

• Label the system in accordance with the F-Gas Regulation and indicate all required information in the system log book.

R22 to HARP® 407A RETROFIT PROCEDUREBefore converting an R22 system to HARP® 407A, check OEM recommendations to ensure the existing system design is suitable, system capacities, relief valve sizing and equipment seal material compatibility.

HARP® 407A is a HFC refrigerant and a POE lubricant will be required. Older R22 systems may contain a mineral or alkyl benzene based lubricant that is not compatible with HFCs like HARP® 407A. Check with the compressor manufacturer for any recommendations they may have.

SYSTEM PREPARATION• Record the system performance to obtain a baseline prior

to retrofit, e.g. suction and discharge pressures, discharge temperature, temperatures in and out of the condenser and evaporator and the energy consumption if possible.

• Check and repair any existing leaks on the system.• If not a POE then remove the oil from the compressor sump,

oil separators, oil float and suction line accumulators. Record amount removed.

• Replace all seals on joints that have been opened and on the liquid receiver.

• Replace drier.• Add the recommended viscosity grade POE.• Evacuate system and check for leaks.• Re-charge with old refrigerant.• Re-start system and check for leaks. Check oil levels.• Run system for at least 24 hours.• Check mineral oil concentration in the POE using a

refractometer. Ensure residual mineral oil content is not more than 5%. Repeat oil change if necessary.

• Remove R22 from system.• Install a HFC compatible filter drier.• Replace receiver float seal.• Repair or replace old solenoid valves and ball valves to

minimise leaks.• Evacuate the system to at least 1 mbar and perform a system

strength pressure test with oxygen free Nitrogen in accordance with EN 378.

• If system fails the strength test repair any faults or replace any defective components and re-test.

• Perform a triple evacuation procedure, each time ensuring a vacuum of 1 mbar is pulled and held. Repair any leaks.

• Reset pressure controls for HARP® 407A. Pressure/temperature data is on Page 4 of this product information sheet.

• Liquid charge the system with HARP® 407A. Typically the charge will be around 95% that of the original R22 charge weight.

• Note: If charging into the suction line on a running system the liquid from the cylinder must be vapourised before entering the system.

SYSTEM START UP• Start the system and check for any leaks.• Set the expansion valve settings. For calculating the sub-

cooling use the HARP® 407A bubble point as the saturation temperature. For calculating the superheat, use the HARP® 407A dew point as the saturation temperature.

• Monitor refrigerant and oil levels and adjust amounts as required.

• Record performance data and compare to that obtained for baseline performance.

• Label the system in accordance with the F-Gas Regulation and indicate all required information in the system log book.

Property HARP® 407A R22 R404A

Critical temperature 82.3°C 96.1°C 72.1°C

Critical pressure 45.2 bar 49.9 bar 37.3 bar

Molecular weight 90.1 86.5 97.6

Liquid density 1167 kg/m3 1210 kg/m3 1067 kg/m3 (saturation @ 20°C)

Dew point at 1 atm. -38.6°C -40.8°C -45.5°C

Temperature glide at 1atm. 6.4 K 0 K 0.7 K

Capacity 1 11.2 kW 11.1 kW 11.0 kW

Mass flow per kW1 109% 100% 144%

Compressor discharge 81.1°C 99.4°C 65.7°C temperature1

1Based on calculated medium temperature refrigeration cycle.Evaporator mid-point -15.0°C5K useful superheat,40.0°C condensing mid-point,5K liquid sub-cooling,65% compressor isentropic efficiency with fixed displacement of 20m3/hour.No demand cooling applied.

0071 Pughs HARP 407a A4 4pp.indd 3-4 25/04/2013 09:36


United Kingdom




HARP® 407C

ASHRAE Number: R407C Composition: Component name Chemical Formula CAS Number Composition Difluoromethane (R32) CH2F2 75-10-5 23 +/- 2 %w/w Pentafluoroethane (R125) CHF2CF3 354-33-6 25 +/- 2 %w/w 1,1,1,2-Tetrafluoroethane (R134a) CH2FCF3 811-97-2 52 +/- 2 %w/w ________________________________________________________________________________ Guaranteed Specifications Purity Minimum 99.5 %w/w Water content Maximum 10.0 ppm w/w Non-Condensable Gas (vapour phase) Maximum 1.5 % v/v High boiling residue Maximum 0.01 % w/w Acidity (as HCl) Maximum 1.0 ppm w/w Chloride No visible turbidity Pass Appearance Clear and colourless liquefied gas For toxicological and health and safety information, please consult our Material Safety Data Sheet. Issue No.8 Reviewed by CJH, June 2013

Harp® 407C is a zero ozone depletion (ODP) hydrofluorocarbon (HFC) refrigerant blend. Harp® 407C is a ternary blend of R32, R125 and R134a (23%/25%/52%). It has been formulated to closely match the properties of HCFC R22. It is widely used in new equipment that would have previously used R22 and can with specific modifications be retrofitted into exiting R22 equipment.

APPLICATIONHarp® 407C applications include residential and commercial air conditioning systems, direct expansion fluid chillers and some commercial refrigeration systems. Since Harp® 407C has similar properties to R22, it is possible (with modifications) to use it in existing R22 systems. It should not be used in systems with a flooded evaporator.

PROPERTIES AND PERFORMANCEHarp® 407C is designed to meet the needs of many new and existing air conditioning and refrigeration systems. Harp® 407C is a zeotropic HFC refrigerant blend rated A1 by ASHRAE (lowest levels of toxicity and flammability), having zero ozone depletion potential and a Global Warming Potential of 1774.

LUBRICATIONPOE lubricants must be used with Harp® 407C since it is not miscible with mineral or alkyl benzene lubricants found in most R22 systems. When retrofitting, a lubricant flushing procedure is necessary to reduce the original oil content below 5%. New R407C equipment will be charged with the OEM recommended lubricant, ready to use with Harp® 407C.

CHARGINGDue to the zeotropic nature of Harp® 407C, it should be charged as a liquid to prevent fractionation (changes in refrigerant composition due to vapour charging). In situations where vapour is normally charged into a system, a valve should be installed in the charging line to flash the liquid to vapour while charging.

RETROFITTINGHarp® 407C can be used to retrofit existing R22 systems in positive displacement, direct expansion refrigeration, and air conditioning equipment. R407C should not be used in centrifugal chillers or other equipment that uses a flooded evaporator, due to its high temperature glide.

MATERIAL COMPATIBILITYWhenever retrofitting air-conditioning or refrigeration systems, compatibility of system materials must always be taken into consideration. Items such as elastomers, hoses, and filter-driers respond differently to different refrigerants and oils. For these reasons, before performing any refrigerant retrofit, Harp International recommends contacting the OEM for specific recommendations.

Harp® 407C


0071 Pughs HARP 407c A4 2pp.indd 1 22/10/2013 21:08

Harp® 407CTechnical Data




HARP® 407C THERMODYNAMIC PROPERTIES

Absolute Bubble Dew Liquid Vapour Liquid Vapour Liquid Vapour Pressure Temperature Temperature Density Density Enthalpy Density Entropy Entropy (bar) (°C ) (°C) (kg/m3) (kg/m3) (kJ/kg) (kJ/kg) (kJ/kg.K) (kJ/kg.K)

0.5 -57.3 -50.1 1422.0 2.4 123.7 382.6 0.786 1.966 0.6 -54.0 -46.8 1412.0 2.8 128.0 384.6 0.806 1.958 0.7 -51.0 -43.9 1403.2 3.3 131.8 386.3 0.823 1.951 0.8 -48.4 -41.3 1395.3 3.7 135.2 387.8 0.838 1.945 0.9 -46.1 -39.0 1388.2 4.1 138.3 389.2 0.852 1.940 1.0 -43.9 -36.9 1381.6 4.6 141.2 390.4 0.864 1.936 1.013 -43.6 -36.6 1380.7 4.6 141.5 390.6 0.866 1.935 1.5 -35.1 -28.3 1354.3 6.7 152.8 395.4 0.914 1.919 2.0 -28.4 -21.7 1333.0 8.8 161.7 399.1 0.951 1.908 2.5 -22.9 -16.3 1315.1 10.9 169.1 402.0 0.980 1.899 3.0 -18.2 -11.7 1299.5 13.0 175.6 404.5 1.006 1.892 3.5 -14.0 -7.6 1285.5 15.1 181.2 406.6 1.028 1.887 4.0 -10.3 -4.0 1272.8 17.2 186.4 408.4 1.047 1.882 4.5 -7.0 -0.7 1261.1 19.2 191.1 410.0 1.065 1.878 5.0 -3.9 2.4 1250.1 21.3 195.4 411.5 1.081 1.874 5.5 -1.0 5.2 1239.8 23.4 199.5 412.8 1.096 1.871 6.0 1.7 7.8 1230.0 25.5 203.3 414.0 1.109 1.868 6.5 4.2 10.2 1220.7 27.7 206.9 415.1 1.122 1.865 7.0 6.6 12.6 1211.7 29.8 210.3 416.1 1.134 1.863 7.5 8.9 14.8 1203.1 31.9 213.6 417.0 1.146 1.860 8.0 11.0 16.9 1194.9 34.1 216.7 417.9 1.157 1.858 8.5 13.0 18.8 1186.8 36.3 219.7 418.7 1.167 1.856 9.0 15.0 20.7 1179.1 38.5 222.6 419.4 1.177 1.854 9.5 16.9 22.6 1171.5 40.7 225.3 420.1 1.187 1.852 10.0 18.7 24.3 1164.1 42.9 228.0 420.7 1.196 1.850 11.0 22.1 27.6 1149.9 47.4 233.2 421.9 1.213 1.846 12.0 25.3 30.7 1136.2 51.9 238.0 422.9 1.229 1.843 13.0 28.3 33.6 1123.0 56.6 242.7 423.7 1.244 1.840 14.0 31.1 36.4 1110.2 61.3 247.1 424.5 1.258 1.836 15.0 33.8 39.0 1097.7 66.1 251.3 425.1 1.272 1.833 16.0 36.4 41.4 1085.5 71.1 255.4 425.6 1.285 1.831 17.0 38.8 43.8 1073.5 76.1 259.4 426.1 1.297 1.828 18.0 41.2 46.0 1061.7 81.2 263.2 426.5 1.309 1.825 19.0 43.4 48.2 1050.0 86.5 266.9 426.7 1.321 1.822 20.0 45.6 50.3 1038.5 91.8 270.5 426.9 1.332 1.819 21.0 47.7 52.2 1027.1 97.3 274.0 427.1 1.343 1.816 22.0 49.7 54.2 1015.7 103.0 277.5 427.1 1.353 1.813 23.0 51.6 56.0 1004.4 108.8 280.9 427.1 1.363 1.810 24.0 53.5 57.8 993.1 114.8 284.2 427.1 1.373 1.808 25.0 55.3 59.5 981.8 120.9 287.4 426.9 1.383 1.805 26.0 57.1 61.2 970.5 127.3 290.7 426.7 1.392 1.801 27.0 58.8 62.8 959.0 133.8 293.8 426.4 1.401 1.798 28.0 60.5 64.4 947.5 140.6 297.0 426.1 1.410 1.795 29.0 62.1 65.9 935.9 147.6 300.1 425.6 1.419 1.792 30.0 63.7 67.4 924.1 154.9 303.2 425.1 1.428 1.788 31.0 65.3 68.8 912.1 162.5 306.2 424.6 1.437 1.785 32.0 66.8 70.3 899.9 170.5 309.3 423.9 1.446 1.781 33.0 68.3 71.6 887.4 178.8 312.3 423.2 1.454 1.777 34.0 69.7 72.9 874.6 187.5 315.4 422.3 1.463 1.773 35.0 71.2 74.2 861.3 196.7 318.5 421.4 1.472 1.769

HARP® 407C BASIC PROPERTIES

Chemical formula R32: CH2F2 (23% by weight) R125: CHF2CF3 (25% by weight) R134a: CH2FCF3 (52% by weight)

Molecular weight 86.2

Boiling point at 1 atm. -43.6°CTemperature glide at 1 atm. 7.0 KCritical temperature 86.0°CCritical pressure 46.3 bar absolute

0071 Pughs HARP 407c A4 2pp.indd 2 22/10/2013 21:08

MATERIAL SAFETY DATA SHEET _______________________________________________________________________ Product: HARP ® 407D Page: 1/5 Revision: 1.02 Date: 04/08 _____________________________________________________________________________________________________ 01 - IDENTIFICATION OF THE SUBSTANCE/PREPARATION AND THE COMPANY/UNDERTAKING PRODUCT NAME HARP® 407D SUPPLIER Harp International Limited Gellihirion Industrial Estate Pontypridd Rhondda Cynon Taff CF37 5SX United Kingdom Telephone: +44 (0) 1443 842255

Fax: +44 (0) 1443 841805

Email: [email protected]

EMERGENCY TELEPHONE NUMBER: +44 (0) 1865 407333 (24 HOUR) _____________________________________________________________________________________________________ 02 - HAZARDS IDENTIFICATION Low acute toxicity. High exposures may cause abnormal heart rhythm and prove suddenly fatal. Very high atmospheric concentrations may cause an abnormal heart rhythm anaesthetic effects and asphyxiation. Liquid splashes or spray may cause freeze burns to skin and eyes. ______________________________________________________________________________________________________________ 03 - COMPOSITION/INFORMATION ON INGREDIENTS EEC No.: HFC 32:- 200-839-4, HFC134a:- 212-377-0, HFC125:- 206-557-8, HAZARDOUS INGREDIENT(S) CAS No. % (w/w) Symbol R Phrases Difluoromethane (HFC 32) 000075-10-5 15 F+ R12 Pentafluoroethane (HFC 125) 000354-33-6 15 1,1,1,2-Tetrafluoroethane (HFC 134a) 000811-97-2 70 ____________________________________________________________________________________________________________________________ 04 - FIRST AID MEASURES The first aid advice given for skin contact, eye contact and ingestion is applicable following exposures to the liquid or spray. See also Section 11. Inhalation: Remove patient from exposure, keep warm and at rest. Administer oxygen if necessary.

Apply artificial respiration if breathing has ceased or shows signs of failing. In the event of cardiac arrest apply external cardiac massage. Obtain immediate medical attention.

Skin Contact: Thaw affected areas with water. Remove contaminated clothing. Caution: clothing may adhere to the skin in the case of freeze burns. After contact with skin, wash immediately with plenty of warm water. If irritation or blistering occur obtain medical attention.

Eye Contact: Immediately irrigate with eye wash solution or clean water, holding the eyelids apart, for at least 10 minutes. Obtain immediate medical attention.

Ingestion: Unlikely route of exposure. Do not induce vomiting. Provided the patient is conscious, wash out mouth with water and give 200–300 ml (half pint) of water to drink. Obtain immediate medical attention.

Further Medical Treatment Symptomatic treatment and supportive therapy as indicated. Adrenalin an similar sympathomimetic drugs should be avoided following exposure as cardiac arrhythmia may result with possible subsequent cardiac arrest. ____________________________________________________________________________________________________________________________

MATERIAL SAFETY DATA SHEET _______________________________________________________________________ Product: HARP ® 407D Page: 2/5

Revision: 1.02 Date: 04/08 _____________________________________________________________________________________________________ 05 - FIRE-FIGHTING MEASURES This refrigerant is not flammable in air under ambient conditions of temperature and pressure. Certain mixtures of this refrigerant and air when under pressure may be flammable. Certain mixtures of HFCs and chlorine may be flammable or reactive under certain conditions. Combustion or thermal decomposition will evolve very toxic and corrosive vapours (hydrogen fluoride) Extinguishing Media: Allow gas fires to burn until exhausted. Water spray should be used to cool containers. Fire Fighting Protective Equipment: A self contained breathing apparatus and full protective clothing must be worn in fire

conditions. See also Section 8. ____________________________________________________________________________________________________________________________ 06 - ACCIDENTAL RELEASE MEASURES Ensure personal protection (including respiratory protection) during removal of spillages. See also Section 8. Provided it is safe to o so, isolate the source of the leak. Allow small spillages to evaporate provide there is adequate ventilation. Large spillages: Ventilate area. Contain spillages with sand, earth or any suitable adsorbent material. Prevent liquid from entering drains, sewers, basements and work pits since the vapour may create a suffocating atmosphere. ____________________________________________________________________________________________________________________________ 07 - HANDLING AND STORAGE Handling Keep away from sources of ignition – No smoking. Take precautionary measures against static discharges. Avoid inhalation of high concentrations of vapours. Atmospheric levels should be controlled in compliance with the occupational exposure limit. Atmospheric concentrations well below the occupational exposure limit can be achieved by good occupational hygiene practice. The vapour is heavier than air, high concentrations may be produced at low levels where general ventilation is poor, in such cases provide adequate ventilation or wear suitable respiratory protective equipment with positive air supply. Avoid contact with naked flames an hot surfaces as corrosive and very toxic decomposition products can be formed. Avoid contact between the liquid and skin and eyes. Process Hazards Liquid transfers between refrigerant containers and to and from systems can result in static generation. Ensure adequate earthing. Certain mixtures of HFCs and chlorine may be flammable or reactive under certain conditions. Storage Keep in a well ventilated place. Keep in a cool place away from fire risk, direct sunlight and all sources of heat such as electric and steam radiators. Avoid storing near to the intake of air conditioning units, boiler units and open drains. Cylinders and drums: Keep container dry. Storage temperature <45°C. ____________________________________________________________________________________________________________________________ 08 - EXPOSURE CONTROLS/PERSONAL PROTECTION Wear suitable protective clothing, gloves and eye/face protection. Wear thermal insulating gloves when handling liquefied gases. In cases of insufficient ventilation, where exposure to high concentrations of vapour is possible, suitable respiratory protective equipment with positive air supply should be used.


Revision: 1.02 Date: 04/08 _____________________________________________________________________________________________________ Occupational Exposure Limits HAZARDOUS LTEL 8hr LTEL 8hr STEL STEL Notes INGREDIENT(S) TWA TWA ppm mg/m3 ppm mg/m3 Difluoromethane (HFC 32) 1000 - - - COM Pentafluoroethane (HFC 125) 1000 - - - COM 1,1,1,2-Tetrafluoroethane (HFC 134a) 1000 4240 - - OES _______________________________________________________________________________________________________________ 09 - PHYSICAL AND CHEMICAL PROPERTIES Form: liquefied gas Colour: colourless Odour: ether-like (slightly) Boiling point: -39.8°C to -33.1°C (boiling range) Vapour Pressure 6600 mm Hg at 20°C Density (g/ml): 1.18 at 20°C Solubility (Water): insoluble Solubility (Other): soluble in: chlorinated solvents, alcohols, esters Vapour density (Air = 1): 3.1 approx, at bubble point temperature ____________________________________________________________________________________________________________________________ 10 - STABILITY AND REACTIVITY Hazardous Reactions: Certain mixtures of HFCs and chlorine may be flammable or reactive under certain

conditions. Incompatible materials: finely divided metals, magnesium and alloys containing more than

2% magnesium. Can react violently if in contact with alkali metals, alkaline earth metals- sodium,

potassium, barium. May react violently with: oxidising agents. Hazardous Decomposition Products: hydrogen chloride, hydrogen fluoride by decomposition and hydrolysis. ____________________________________________________________________________________________________________________________ 11 - TOXICOLOGICAL INFORMATION Inhalation High exposures may cause abnormal heart rhythm and prove suddenly fatal. Very high atmospheric concentrations may cause an abnormal heart rhythm anaesthetic effects and asphyxiation. Skin Contact Liquid splashes or spray may cause freeze burns. Unlikely to be hazardous by skin absorption. Eye Contact Liquid splashes or spray may cause freeze burns. Ingestion Highly unlikely - but should this occur freeze burns will result. Long Term Exposure HFC 32: An inhalation study in animals has shown that repeated exposures produce no significant effects (49,500ppm in rats). HFC 125: An inhalation study in animals has shown that repeated exposures produce no significant effects (50,000ppm in rats). HFC 134a: A lifetime study in rats has shown that exposures to 50,000ppm resulted in benign tumours of the testes. The increased tumour incidence was observed only after prolonged exposure to high levels and is considered not to be of relevance to humans occupationally exposed to HFC 134a at or below the occupational limit. _______________________________________________________________________________________________________________


Revision: 1.02 Date: 04/08 _____________________________________________________________________________________________________ 12 - ECOLOGICAL INFORMATION Environmental Fate and Distribution High tonnage material produced in wholly systems. High tonnage material used in open systems. Vapour. Persistence and Degradation HFC 32: Decomposed comparatively rapidly in the lower atmosphere (troposphere). Atmospheric lifetime is 5.6 year(s) Has a Global Warming Potential (GWP) of 650 (relative to 1 for carbon dioxide at 100 years). HFC 125: Decomposed slowly in the lower atmosphere (troposphere). Atmospheric lifetime is 32.6 year(s) Has a Global Warming Potential (GWP) of 2800 (relative to 1 for carbon dioxide at 100 years). HFC 134a: Decomposed comparatively rapidly in the lower atmosphere (troposphere). Atmospheric lifetime is 13.6 year(s) Has a Global Warming Potential (GWP) of 1300 (relative to 1 for carbon dioxide at 100 years). HFC 32, HFC 125, HFC 134a: Does not influence photochemical smog (i.e. is not a VOC under terms of the UNECE agreement). Effect on Effluent Treatment Discharges of the product will enter the atmosphere and will not result in long term aqueous contamination. ____________________________________________________________________________________________________________________________ 13 - DISPOSAL CONSIDERATIONS Best to recover and recycle. If this is not possible, destruction is to be in an approved facility, which is equipped to absorb and neutralise acid gases and other toxic processing products. ____________________________________________________________________________________________________________________________ 14 - TRANSPORT INFORMATION UN No: 1078 AIR ICAO/IATA -primary: 2. 2 SEA IMDG -primary: 2.2 Marine Pollutant: Not classified as a marine pollutant Proper Shipping Name: REFRIGERANT GAS N.O.S (PENTAFLUOROETHANE, DIFLUOROMETHANE, 1,1,1,2-TETRAFLUOROETHANE) ROAD/RAIL ADR/RID Class: 2 ADR Sin: 1078 ____________________________________________________________________________________________________________________________ 15 - REGULATORY INFORMATION Not classified as dangerous to users. _______________________________________________________________________________________________________________


Revision: 1.02 Date: 04/08 _____________________________________________________________________________________________________ 16 – OTHER INFORMATION This data sheet was prepared in accordance with Directive 2001/58/EC. This information contained within this safety data sheet applies only to the Harp International Limited product to which it relates. The information provided is based upon our best knowledge at the time that this safety data sheet was published. The information is believed to be accurate and is given in all good faith. When used in other preparations, in formulations or in mixtures, it is necessary to ascertain if the classification of the hazards have changed. The attention of users is drawn to the possibility of creating other hazards when the product is used for purposes other than that for which it is recommended. In such cases a complete reassessment should be made by user. This safety data sheet should only be used and reproduced in order that the necessary measures may be taken relating to the protection of health and safety at work and relating to the protection of environment. The reference to the legislative, regulatory and codes of practice documents must not be considered as exhaustive. It is the responsibility of handlers of the product to pass on the totality of the information contained within this document to any subsequent persons who will come into contact with, handle or use the product in any way. They should check the adequacy of the information contained in the safety data sheet received before passing it onto their customers. ____________________________________________________________________________________________________________________________ End of document


United Kingdom




HARP® 407D

ASHRAE Number: R407D Composition: Component name Chemical Formula CAS Number Composition Difluoromethane (R32) CH2F2 75-10-5 15 +/- 2 %w/w Pentafluoroethane (R125) CHF2CF3 354-33-6 15 +/- 2 %w/w 1,1,1,2-Tetrafluoroethane (R134a) CH2FCF3 811-97-2 70 +/- 2 %w/w ________________________________________________________________________________ Guaranteed Specifications

Purity Minimum 99.5 %w/w Water content Maximum 10.0 ppm w/w Non-Condensable Gas (vapour phase) Maximum 1.5 % v/v High boiling residue Maximum 0.01 % w/w Acidity (as HCl) Maximum 1.0 ppm w/w Chloride No visible turbidity Pass Appearance Clear and colourless liquefied gas For toxicological and health and safety information, please consult our Material Safety Data Sheet. Issue No.4 Reviewed by CJH, June 2013


United Kingdom




HARP® 410A

ASHRAE Number: R410A Composition: Component name Chemical Formula CAS Number Composition Difluoromethane (R32) CH2F2 75-10-5 50 +0.5 -1.5 %w/w Pentafluoroethane (R125) CHF2CF3 354-33-6 50 +1.5 -0.5 %w/w ________________________________________________________________________________ Guaranteed Specifications Purity Minimum 99.5 %w/w Water content Maximum 10.0 ppm w/w Non-Condensable Gas (vapour phase) Maximum 1.5 % v/v High boiling residue Maximum 0.01 % w/w Acidity (as HCl) Maximum 1.0 ppm w/w Chloride No visible turbidity Pass Appearance Clear and colourless liquefied gas For toxicological and health and safety information, please consult our Material Safety Data Sheet. Issue No.6 Reviewed by CJH, June 2013

Harp® 410A is a zero ozone depletion (ODP) hydrofluorocarbon (HFC) refrigerant blend. Harp® 410A is a binary blend of R32 and R125 (50%/50%) developed as a replacement refrigerant for air conditioning applications previously designed for HCFC R22. Due to both its higher refrigerating capacity and pressure, Harp® 410A should not be used as a retrofit refrigerant in existing R22 equipment.

APPLICATIONHarp® 410A is used in new residential and commercial air conditioning systems, heat pumps, dehumidifiers and small chillers. Harp® 410A can also be used in some medium temperature refrigeration applications.

PROPERTIES AND PERFORMANCEHarp® 410A is a near-azeotropic HFC refrigerant blend that meets the industry’s needs for many new air conditioning systems. Harp® 410A has an A1 safety rating from ASHRAE (lowest levels of toxicity and flammability), zero ozone depletion potential and a Global Warming Potential (GWP) of 2088.

Harp® 410A has both higher pressures and capacity than R22, requiring equipment and components specifically designed to accommodate the resulting higher system pressures and the lower mass flow rates. Typical operating pressures of a Harp® 410A system will be 50% to 60% higher than those in an R22 system at comparable operating conditions. Harp® 410A also has significantly higher volumetric refrigerating capacity than R22 under most operating conditions. This allows OEMs to manufacture equipment of similar capacity and efficiency to R22 in a smaller package.

LUBRICATIONPolyolester (POE) lubricants must be used with Harp® 410A since it is not miscible with mineral or alkyl benzene lubricants. New R410A equipment will be charged with the OEM recommended lubricant, ready to use with Harp® 410A.

CHARGINGDue to the zeotropic nature of the Harp® 410A blend, it should only be charged as liquid to prevent fractionation (changes in refrigerant composition due to vapour charging). Harp® 410A requires the use of manifold gauge sets, recovery machines, and cylinders specifically designed and rated for its higher pressures.

RETROFITTINGDue to the significantly higher operating pressures and capacities of Harp® 410A, it must never be used as a retrofit in existing R22 systems.

MATERIAL COMPATIBILITYWhenever retrofitting air-conditioning or refrigeration systems, compatibility of system materials is always a concern. Items such as elastomers, hoses, and filter-driers respond differently to different refrigerants and oils. For these reasons, before performing any system repairs, Harp International recommends contacting the OEM for specific recommendations.

Harp® 410A



Harp® 410ATechnical Data




Harp® 410A BASIC PROPERTIES

Chemical formula R125: CHF2CF

3 (50% by weight)

R32: CH2F

2 (50% by weight)

Molecular weight 72.6

Boiling point at 1 atmosphere -51.5°CCritical temperature 71.4°CCritical pressure 48.9 bar absoluteTemperature glide 0.1K

Harp® 410A THERMODYNAMIC PROPERTIES

Liquid Vapour Liquid Vapour Liquid Vapour Liquid Vapour Pressure Temperature Temperature Density Density Enthalpy Density Entropy Entropy (bar) (°C) (°C) (kg/m³) (kg/m³) (kJ/kg) (kJ/kg) (kJ/kg.K) (kJ/kg.K)

0.5 -64.4 -64.3 1389.7 2.2 109.9 393.6 0.693 2.051 0.6 -61.2 -61.1 1380.0 2.6 114.2 395.3 0.713 2.039 0.7 -58.5 -58.4 1371.5 3.0 118.0 396.8 0.731 2.029 0.8 -56.0 -55.9 1363.9 3.3 121.4 398.1 0.747 2.021 0.9 -53.7 -53.7 1356.9 3.7 124.4 399.3 0.761 2.013 1.0 -51.7 -51.6 1350.5 4.1 127.2 400.4 0.773 2.007 1.013 -51.5 -51.4 1349.7 4.2 127.6 400.5 0.775 2.006 1.5 -43.4 -43.3 1324.1 6.0 138.6 404.6 0.824 1.981 2.0 -37.1 -37.0 1303.4 7.9 147.4 407.7 0.861 1.964 2.5 -31.9 -31.8 1286.1 9.8 154.7 410.2 0.892 1.950 3.0 -27.4 -27.4 1271.1 11.7 161.0 412.2 0.917 1.939 3.5 -23.5 -23.5 1257.6 13.6 166.6 413.9 0.940 1.930 4.0 -20.0 -20.0 1245.3 15.4 171.6 415.3 0.959 1.922 4.5 -16.9 -16.8 1233.9 17.3 176.2 416.6 0.977 1.915 5.0 -14.0 -13.9 1223.3 19.2 180.4 417.7 0.994 1.909 5.5 -11.3 -11.2 1213.4 21.1 184.4 418.8 1.009 1.903 6.0 -8.7 -8.6 1203.9 23.0 188.1 419.7 1.023 1.898 6.5 -6.4 -6.3 1194.9 24.9 191.6 420.5 1.036 1.893 7.0 -4.2 -4.1 1186.3 26.8 195.0 421.2 1.048 1.889 7.5 -2.0 -1.9 1178.1 28.7 198.1 421.9 1.060 1.885 8.0 0.0 0.1 1170.1 30.7 201.2 422.5 1.071 1.881 8.5 1.9 2.0 1162.4 32.6 204.1 423.1 1.081 1.877 9.0 3.7 3.8 1154.9 34.6 206.9 423.6 1.091 1.874 9.5 5.5 5.6 1147.6 36.5 209.6 424.1 1.101 1.870 10.0 7.2 7.3 1140.5 38.5 212.2 424.5 1.110 1.867 11.0 10.4 10.5 1126.8 42.5 217.3 425.3 1.127 1.861 12.0 13.3 13.5 1113.7 46.6 222.0 425.9 1.144 1.855 13.0 16.2 16.3 1101.1 50.8 226.5 426.4 1.159 1.850 14.0 18.8 18.9 1088.8 55.0 230.8 426.8 1.174 1.845 15.0 21.3 21.4 1076.9 59.3 234.9 427.1 1.187 1.840 16.0 23.7 23.8 1065.2 63.7 238.9 427.3 1.200 1.835 17.0 26.0 26.1 1053.8 68.1 242.7 427.5 1.213 1.831 18.0 28.1 28.3 1042.6 72.7 246.4 427.5 1.225 1.826 19.0 30.2 30.3 1031.6 77.3 250.0 427.5 1.237 1.822 20.0 32.2 32.3 1020.7 82.1 253.5 427.5 1.248 1.817 21.0 34.2 34.3 1009.9 87.0 256.9 427.3 1.259 1.813 22.0 36.0 36.1 999.2 91.9 260.3 427.1 1.269 1.809 23.0 37.8 37.9 988.6 97.0 263.5 426.9 1.279 1.804 24.0 39.6 39.7 978.0 102.3 266.7 426.5 1.289 1.800 25.0 41.3 41.4 967.5 107.7 269.9 426.2 1.299 1.796 26.0 42.9 43.0 957.0 113.2 273.0 425.7 1.308 1.792 27.0 44.5 44.6 946.4 118.9 276.0 425.2 1.318 1.787 28.0 46.0 46.1 935.8 124.8 279.1 424.7 1.327 1.783 29.0 47.5 47.6 925.2 130.8 282.0 424.1 1.336 1.779 30.0 49.0 49.1 914.5 137.1 285.0 423.4 1.345 1.774


Harp International Limited

Gellihirion Industrial Estate, Pontypridd, Rhondda Cynon Taff, CF37 5SX

United Kingdom

Telephone: +44 (0) 1443 842255 Fax: +44 (0) 1443 841805

E-mail: [email protected] Web: http://www.harpintl.com



HARP® 507

ASHRAE Number: R507 Composition: Component name Chemical Formula CAS Number Composition 1,1,1-Trifluoroethane (R143a) CH3CF3 420-46-2 48.5 - 50.5 %w/w Pentafluoroethane (R125) CHF2CF3 354-33-6 49.5 - 51.5 %w/w

________________________________________________________________________________

Guaranteed Specifications Purity Minimum 99.5 %w/w Water content Maximum 10.0 ppm w/w Non-Condensable Gas (vapour phase) Maximum 1.5 % v/v High boiling residue Maximum 0.01 % w/w Acidity (as HCl) Maximum 1.0 ppm w/w Chloride No visible turbidity Pass Appearance Clear and colourless liquefied gas For toxicological and health and safety information, please consult our Safety Data Sheet. Issue No.9 Reviewed by CJH, Sept 2015


United Kingdom




HARP® 508A

ASHRAE Number: R508A Composition: Component name Chemical Formula CAS Number Composition Trifluoromethane (R23) CHF3 75-46-7 39 +/- 2 %w/w Hexafluoroethane (R116) CF3CF3 76-16-4 61 +/- 2 %w/w ________________________________________________________________________________ Guaranteed Specifications Purity Minimum 99.5 %w/w Water content Maximum 10.0 ppm w/w Non-Condensable Gas (vapour phase) Maximum 1.5 % v/v High boiling residue Maximum 0.01 % w/w Acidity (as HCl) Maximum 1.0 ppm w/w Chloride No visible turbidity Pass Appearance Clear and colourless liquefied gas For toxicological and health and safety information, please consult our Material Safety Data Sheet. Issue No.3 Reviewed by CJH, June 2013


United Kingdom




HARP® 717 (cylinders)

ASHRAE Number: R717 CAS Number: 7664-41-7 Chemical Name: Ammonia Chemical Formula: NH3 ________________________________________________________________________________ Guaranteed Specifications Water content Maximum 200 ppm w/w Oil content Maximum 10 ppm w/w For toxicological and health and safety information, please consult our Safety Data Sheet. Issue No.2 Reviewed by CJH, November 2013


United Kingdom




HARP® 717 (drums)

ASHRAE Number: R717 CAS Number: 7664-41-7 Chemical Name: Ammonia Chemical Formula: NH3 ________________________________________________________________________________ Guaranteed Specifications Water content Maximum 200 ppm w/w Oil content Maximum 5 ppm w/w For toxicological and health and safety information, please consult our Safety Data Sheet. Issue No.2 Reviewed by CJH, November 2013

Harp® hydrocarbon refrigerants are a range of organic based, naturally occurring, non-ozone depleting and environmentally friendly refrigerants with negligible global warming potential. They are suitable for use in a wide spectrum of domestic, commercial and industrial applications and in certain types of air conditioning systems. The Harp® range of hydrocarbon refrigerants is comprised of three single component refrigerants: Harp® 600a (iso-butane – R600a) Harp® 290 (propane – R290) Harp® 1270 (propylene – R1270)

APPLICATIONHarp® 600a is pure iso-butane and is primarily used in domestic refrigerators that previously used R134a. Operating pressures are significantly lower than those of R134a and its evaporating temperature is significantly higher. It’s neither possible or safe to retrofit existing R134a equipment to Harp® 600a due to the substantially increased compressor displacement requirements and its extreme flammability, which makes it impossible to use safely in existing R134a refrigeration equipment.

Harp® 290 is pure propane and is primarily used in commercial and industrial refrigeration systems and chiller applications that previously would have used refrigerants such as R22 or R404A. It exhibits similar pressures and refrigeration capacity to both R22 and R404A with discharge temperatures significantly lower than R22 allowing single stage compression down to approximately -40°C as typically found in R404A systems. Equipment must be specifically designed for its use to.

Harp® 1270 is pure propylene and is primarily used in commercial and industrial refrigeration systems and chiller applications that previously would have used refrigerants such as R22 or R404A. Harp® 1270 has a higher volumetric refrigerating capacity than Harp® 290 and is of particular interest in the area of medium and low-temperature chiller systems in supermarkets. Higher pressure levels (>20% more than R290) and slightly higher discharge temperatures may restrict its usage in certain applications. Equipment must be specifically designed for its use.

Harp® hydrocarbon refrigerants do not exhibit temperature glide and can be vapour or liquid charged into suitable refrigeration systems. All three Harp® hydrocarbon refrigerants result in system charge weights significantly lower than comparable HCFC/HFC systems, with reductions typically around 40% by mass.

Under no circumstances should non-hydrocarbon refrigeration systems be topped up with hydrocarbon refrigerants. Hydrocarbon refrigerants must not be recovered into the same recovery cylinders as HCFCs/HFCs or mixed in cylinders with HCFCs/HFCs. Dedicated hydrocarbon recovery cylinders must be used.

LUBRICATIONHarp® hydrocarbon refrigerants can be used with most commonly used refrigeration lubricants and are particularly suited to mineral oils and alkyl benzene lubricants. Polyalphaolefins (POA) and Polyalkyleneglycol (PAG) are also acceptable for use where approved by the compressor manufacturer. However solubility tends to be increased with hydrocarbon refrigerants and it may be necessary to select a higher grade viscosity than for HFCs. This is particularly the case with Polyolester (POE) lubricants. Consult the compressor manufacturer for recommendation.

Harp® Hydrocarbon Refrigerants (R600a, R290 & 1270)


0071 Pughs HARP R600 R290 and 1270 A4 2pp.indd 1 22/10/2013 21:17

Harp® Hydrocarbon Refrigerants




RETROFITTINGFor safety reasons Harp® hydrocarbon refrigerants MUST NEVER be retrofitted into an existing non-hydrocarbon designed refrigeration system.

REFRIGERANT GRADE HYDROCARBONS Only refrigerant grade hydrocarbons should be used for refrigeration and heat pump systems. Commercial/fuel grade hydrocarbons contain significant impurities (sulphur, moisture that contribute to oil degradation and will shorten compressor life. Also unlike commercial/fuel grade hydrocarbons, refrigerant grade hydrocarbons contain no odoursing agent and therefore have no smell.

REFRIGERANT GRADE HYDROCARBONS Only refrigerant grade hydrocarbons should be used for refrigeration and heat pump systems. Commercial/fuel grade hydrocarbons contain significant impurities (sulphur, moisture etc.) that contribute to oil degradation and will shorten compressor life. Also unlike commercial/fuel grade hydrocarbons, refrigerant grade hydrocarbons contain no odoursing agent and therefore have no smell.

ELASTOMERIC COMPATIBILITY Whilst testing has been conducted on a number of selected materials with refrigerant and oil combinations, it should be noted that there are numerous different grades available in the market and for this reason compatibility should be carefully checked with the equipment or component manufacturer. Below gives general compatibility details for commonly used elastomeric materials.

Harp® 600a, Harp® 290 AND Harp® 1270 BASIC PROPERTIES

Harp® 600a Harp® 290 Harp® 1270Chemical formula CH(CH

3)

3 C

3H

8 C

3H

6

Molecular weight 58.13 44.10 42.09Boiling point at 1 atmosphere -11.6°C -41.9°C -47.5°CLatent heat of evaporation at 1 atm. 362.6 kJ/kg 426.0 kJ/kg 440.1 kJ/kgCritical temperature 135.0°C 96.7°C 91.8°CCritical pressure 36.5 bar abs. 42.5 bar abs. 46.2 bar abs.Flammability limits in air (%v/v) 1.8 to 8.5 2.1to 9.5 2.5 to 10.1Ozone Depletion Potential (ODP) 0 0 0Global Warming Potential (GWP) 3 3 3

MATERIAL SUITABILITY

Neoprene 3Neoprene & Harp® 1270 7Viton 3Natural rubber 7EPDM 7Silicone 7Nitrile rubber Dependant upon gradePTFE 3Nylon 3

0071 Pughs HARP R600 R290 and 1270 A4 2pp.indd 2 22/10/2013 21:17

Do's and Don'tsCO2 in Cylinders

Safety informationfor R744 (CO2)cylinder usersGeneral informationHarp® R744 is Carbon dioxide (CO2). It

is only to be used in refrigeration

systems specifically designed to use

R744. Harp® R744 is a high pressure

liquefied gas, at 21◦C its pressure is

58.6 bar absolute. It is provided in

cylinders designed to withstand the

high pressures generated by CO2 at

normal ambient temperatures. Whilst

CO2 is generally not regarded as toxic,

it is extremely dangerous even at low

concentrations. It is odourless at low

concentrations and at levels above 3%

will cause difficulty in breathing,

increased heart rate, headache,

dizziness, sweating and disorientation.

Concentrations above 10% by volume

in the atmosphere can lead to loss of

consciousness and death. It is heavier

than air and will accumulate at low

level.

Harp® 744 cylindersHarp® R744 is supplied in cylinders

with a fill weight of 22.5kg or 34.0kg.

The 34.0kg cylinder is available with

either a liquid off-take or vapour off-

take valve. The 22.5kg cylinder is only

available with a liquid off-take valve.

All Harp® R744 cylinders are equipped

with a pressure relief device to protect

the cylinder against overpressure and

rupture when subjected to excessive

temperatures. The valve is equipped

with a residual pressure device. The

cylinder valve outlet thread is 0.86

inch major diameter, 14 threads per

inch, BS Whitworth form. Female

connection should be in accordance

with BS 341: Part 1 outlet connection

No.8. The cylinder should always be

stored and used in the upright

position.

Safe Handling & Storage

Do ensure the cylinder is alwaysstored in the upright position and issecured and stable.

Do always wear impervious gloves andeye protection when handling Harp®R744.

Do transport cylinders in open vehicleswhere possible or ensure adequateventilation if vehicle is closed.

Do ensure cylinders are correctlylabelled before taking into store.

Using Harp® 744cylindersDo use the correct female connectors(BS 341: Part 1 outlet connectionNo.8), charging gauge and hose kit.Ensure that the connector has asealing washer and that it and thehose kit are in good working conditionbefore using. If in doubt do not use.

Do point the outlet valve away fromyou before opening valve and ensurethe cylinder is fully upright and stable.

Do use only in refrigeration equipmentdesigned for use with CO2.

Do, before charging an evacuatedrefrigeration system with liquid CO2,always break the vacuum with Harp®R744 vapour and raise the pressure toat least 5.18 bar absolute (4.17 bargauge). Failure to do so may result inthe formation of solid CO2 (dry ice)and impede any further transfer of theliquid CO2 into the refrigerationsystem.

Do connect a pressure regulator to avapour off-take CO2 cylinder beforeusing the vapour off-take. High vapourflow rates can cause the cylinder tobecome cold and collapse the cylinderpressure.

Do use a vapouriser if gas to begenerated from a liquid off-take CO2cylinder.

Do use the cylinder valve in the fullyopen position.

Do use a valve outlet cap to preventthe valve threads from becomingdamaged and avoid anycontamination.

Do close the cylinder valve anddepressurise the circuit beforedisconnecting the hose kit.

Don’t store near any source of heat.Ensure that the storage area is well-ventilated at low level with anambient temperature ≤50◦C. Keep outof direct sunlight.

Don’t store in damp or corrosiveatmosphere.

Don’t drop cylinders or use them aswork supports etc.

Don’t store cylinder where it is notpossible to cause mechanical damageto it e.g. by forklift truck etc.

Don’t apply a flame or heat toincrease cylinder pressure.

Don’t interfere or tamper with thepressure relief device or the residualpressure device as this can beextremely dangerous and causepersonal injury.

Don’t use cylinders with faulty ordamaged valves.

Don’t use excessive force whenoperating cylinder valve. Do not useStillson’s/screwdrivers etc. to forcevalve hand wheels open or try tounblock/widen valve orifices underany circumstances.

Don’t apply a naked flame to or heatthe cylinder in an attempt to raise thepressure to aid transfer of CO2 into arefrigeration system. This is extremelydangerous and may cause seriouspersonal injury and damage toproperty and/or equipment.

Don’t attempt to feed CO2 back intothe cylinder. Use non-return valves incircuits where there is a possibility ofthis happening.

Don’t use the cylinder valve as a flowcontroller.

High vapour flow rates can cause thecylinder to become cold and collapsethe cylinder pressure. Don’t apply anaked flame to or heat the cylinder inan attempt to raise the cylinderpressure.

Emergency phone number:

+44(0) 1270 502891 (24 hour)

Safety Information

Harp International Limited

Gellihirion Industrial Estate, Pontypridd, Rhondda Cynon Taff, CF37 5SX

United Kingdom

Telephone: +44 (0) 1443 842255 Fax: +44 (0) 1443 841805

E-mail: [email protected] Web: http://www.harpintl.com



OpteonTM XP10 (R513A)

ASHRAE Number: R513A Composition: Component name Chemical Formula CAS Number Composition 2,3,3,3-Tetrafluoroprop-1-ene (HFO1234yf) C3H2F4 754-12-1 56 % w/w Tetrafluoroethane (R134a) CH2FCF3 811-97-2 44 % w/w

________________________________________________________________________________

Guaranteed Specifications Purity Minimum 99.5 %w/w Water content Maximum 10.0 ppm w/w Non-Condensable Gas (vapour phase) Maximum 1.5 % v/v High boiling residue Maximum 0.01 % w/w Acidity (as HCl) Maximum 1.0 ppm w/w Chloride No visible turbidity Pass Appearance Clear and colourless liquefied gas

For toxicological and health and safety information, please consult our Safety Data Sheet. Issue No.1 Reviewed by CJH, Sept 2015

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