To provide a convenient and rational compression refrigerating system in which maintenance work is facilitated.

The compression refrigerating system 50 comprises a refrigerant compressing/condensing unit 10 and a cooling chamber disposed in an outer box 40 and maintenance work is performed from the side of a front door 41 as shown by an arrow A. The refrigerant compressing/condensing unit 10 compresses refrigerant at a compressing section 11 and then condenses the refrigerant at a condensing section 12 before supplying it to the cooling chamber. Among respective sections of the refrigerant compressing/condensing unit 10, the compressing section 11, an electric part section 19, and refrigerant supplying/ draining operation sections V1, J1, V2, J2 requiring operation at the time of maintenance work are arranged on the front side. A rail and a loop pipe line for drawing out the refrigerant compressing/condensing unit 10 can be eliminated and since respective sections can be arranged on the front side utilizing the part for arranging the loop pipe line, maintenance work is facilitated. Furthermore, maintenance work of a fan 12A at the condensing section 12 can also be facilitated by arranging it on the front side.