| abstract |
The present invention relates to a molecular formula 1: C 3 H m F n (where m and n are integers of 1 to 5 and the relationship of m + n = 6 holds), and a double bond is 1 in the molecular structure. In a refrigeration apparatus having a refrigerant circuit in which a single refrigerant composed of individual refrigerants or a mixed refrigerant containing the refrigerant is used, deterioration of the resin functional parts is prevented. A predetermined resin functional part (61, 62, 63, 64, 65) disposed so as to be in contact with the refrigerant of the refrigerant circuit (10) is replaced with polytetrafluoroethylene, polyphenylene sulfide, phenol resin, polyamide. The resin, chlorobrene rubber, silicon rubber, hydrogenated nitrile rubber, fluorine rubber, or hydrin rubber is used. [Selection] Figure 2 |