| abstract |
A regrigerating apparatus comprising a refrigeration cycle comprising at least a compressor, a condenser, a dryer, an expansion mechanism and an evaporator, a refrigerant composed mainly of a fluorocarbon type refrigerant containing no chlorine and having a critical temperature of 40 DEG C. or higher, and a refrigerating machine oil comprising as base oil an ester oil of one or more fatty acids which contains at least two ester linkages <IMAGE> in the molecule and has a viscosity at 40 DEG C. of 2 to 70 cSt and a viscosity at 100 DEG C. of 1 to 9 cSt. |