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Replacing R22 by R134a in an existing plant. Replacing R12 (or R500) by the Mixiflon DP 40 mixture in an existing plant. Replacing R114 by the Mixiflon FP 40 mixture in an existing plant.

Remplacement du R22 par du R134a dans une installation existante. Remplacement du R12 (ou R500) par le mélange Mixiflon DP 40 dans une installation existante. Remplacement du R114 par le mélange Mixiflon FP 40 dans une installation existante.

Type of article: Periodical article

Summary

These 3 documents detail all the operations required to achieve substitution. Preliminary calculations are to be made to check the component size (compressors, exchangers, expansion equipment, etc.); opinions and guarantees of manufacturers are also required. The purge operations, and the filling with the new fluid are described in detail, with emphasis on the risks of pollution of the circuit, fluid or oil, on the necessary drying and on R134a flammability. The dangers of oxygen presence during the successive operations (because of the oil and the fluid) are also underlined.

Details

  • Original title: Remplacement du R22 par du R134a dans une installation existante. Remplacement du R12 (ou R500) par le mélange Mixiflon DP 40 dans une installation existante. Remplacement du R114 par le mélange Mixiflon FP 40 dans une installation existante.
  • Record ID : 1994-1468
  • Languages: French
  • Source: Dehon Serv., Appl. thermodyn., Doc. provisoire - doc. 04.085.50; 7 p.; append.; doc. 04.089.50; 4 p.; doc. 04.094.50; 4 p. (Dehon Service; 26; avenue du Petit Parc; 94683 Vincennes Cedex).
  • Publication date: 1993/08/27
  • Document available for consultation in the library of the IIR headquarters only.

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