Refrigerating system having reciprocating compressor

A refrigerating system of a reciprocating compressor comprising:

• an evaporator for performing a cooling operation as a refrigerant is evaporated;
• a reciprocating compressor which includes a driving unit having a stator consisting of an outer stator fixed inside a hermetic container, an inner stator disposed with a certain air gap with an inner circumferential surface of the outer stator, and a winding coil wound at one of the outer stator and the inner stator, to which power is applied from an external source, a mover consisting of magnets disposed at regular intervals between the outer stator and the inner stator and linearly and reciprocally moved when power is applied to the winding coil and a magnet frame, in which the magnets are mounted, for transmitting a linear reciprocal motional force to a compression unit, a compression unit for performing a compressing operation on a refrigerant upon receiving the linear reciprocal motional force of the driving unit, and a lubrication unit for supplying the lubricant, a sort of a mineral oil, to each motional portion of the driving unit and the compression unit and performing a lubricating operation;
• a condenser for changing the refrigerant compressed in the reciprocating compressor to a liquid refrigerant;
• and
• a capillary tube for decompressing the refrigerant discharged from the condenser and transmitting it to the evaporator,
• wherein the refrigerant is an HFC refrigerant, hydrogenated carbon fluoride comprising hydrogen, fluorine and carbon and not including chlorine, and the lubricant is an ester-based lubricant, a sort of synthetic fluid, with a high moisture absorption and a saturated water amount of 1500˜2000 PPM.