Retrofitting R502 plants with Forane FX70 (R404A) and Forane FX10.

Conversion d'installations au R502 par du Forane FX70 (R404A) et par du Forane FX10.

Type of article: Article

Summary

The refrigeration plant of a -25 deg C 10,000 m3 cold store is made up of 8 R502 independent units each with a 17 kilowatt refrigerating capacity at -30/35 deg C. An in situ experiment was carried out to compare refrigerants, retrofitting one of the units with FX70 and an other with FX10, the 6 other units operating with R502. The author describes methods (and times) of both retrofittings, with oil substitution for the unit operating with FX70 (with 3 flushings) and no oil substitution for the other one. Simultaneous results of the refrigerant comparison are given in a table of 45 plant parameters which shows little difference between the 3 refrigerants. J.R.

Details

Original title: Conversion d'installations au R502 par du Forane FX70 (R404A) et par du Forane FX10.
Record ID : 1994-3385
Languages: French
Source: Rev. gén. Froid - vol. 84 - n. 941
Publication date: 1994/03
Document available for consultation in the library of the IIR headquarters only.

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Indexing

Themes: CFCs;
HCFCs;
HFCs;
Blends
Keywords: R134a; CFC; R502; R404A; R22; Substitute; Mixture; Refrigerating plant; Retrofitting; Refrigerant