Refrigeration Cycle Equipment

Abstract

The compressor is filled with refrigerant oil, and the refrigerant is sealed in the refrigerant circuit. The refrigerant is C n H 2n-m F m (n is 2 or 3, m is an integer of 1 or more and less than 2n), at least one of the components constituting the refrigerant circuit is a rubber part, the rubber part is in contact with a refrigerant and the refrigerant is expressed by the formula (1): B × Σ{A i / (n i A refrigeration cycle device that satisfies the condition of {-1)}≦0.24. i is the molar ratio of the i-th compound in the refrigerant, n i is the value of n of the i-th compound, Σ{A i / (n i -1)} is the A i / (n i -1), and B represents the mass ratio of acrylonitrile units contained in the rubber that constitutes the rubber part.

Claims

1. a refrigerant circuit including a compressor; The compressor is filled with refrigerating machine oil, A refrigerant is sealed in the refrigerant circuit, The refrigerant is C ｎ H ２ｎ－ｍ F ｍ (n represents 2 or 3, and m represents an integer of 1 or more and less than 2n), At least one of the components constituting the refrigerant circuit is a rubber part, the rubber part comes into contact with the refrigerating machine oil and the refrigerant, A refrigeration cycle device that satisfies the following formula (1): B×Σ{A ｉ / (n ｉ -1)}≦0.24・・・(1) [In formula (1), A ｉ represents the molar ratio of the i-th compound in the refrigerant, n ｉ represents the value of n of the i-th compound, Σ{A ｉ / (n ｉ -1)) is A for i kinds of the compounds. ｉ / (n ｉ -1), B represents the mass ratio of acrylonitrile units contained in the rubber that constitutes the rubber part, and is greater than 0.]

2. The refrigeration cycle device according to claim 1 , wherein the compound includes hydrofluoroethylene.

3. The refrigeration cycle device according to claim 1 or 2, wherein the refrigerant further contains saturated hydrocarbons having a carbon number of 2 or more and 4 or less.

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