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Control in refrigeration and air conditioning: why two types of liquid signals.

Régulation pour le froid et le conditionnement d'air : pourquoi deux types de voyants liquide ?

Author(s) : BROSBY-OLSEN F.

Type of article: Article

Summary

The new refrigerants of the HFC family, like R134a, R404A et R407C, are more than 10 times more soluble in water than the CFCs R12 and R502. To avoid risks of hydrolysis, the reaction in which water reacts with ester oil to form an acid and an alcohol, a low degree of humidity must be maintained in the HFC/ester oil. To obtain an indication of 30-75 ppm in HFCs and CFCs, two different indicator compositions.

Details

Original title: Régulation pour le froid et le conditionnement d'air : pourquoi deux types de voyants liquide ?
Record ID : 1996-3388
Languages: French
Source: Rev. Danfoss - vol. 48 - n. 3
Publication date: 1995
Document available for consultation in the library of the IIR headquarters only.

Links

See the source

Indexing

Themes: HFCs;
Refrigerant circulation: piping, control, automation, safety;
Blends
Keywords: Refrigerating circuit; R407C; R134a; Measurement; R404A; Humidity; Oil; Refrigerant