| 摘要 |
PROBLEM TO BE SOLVED: To prevent the deterioration of an energy-saving effect due to sticking of a hard scale contained in tap water to a condenser, in a refrigerating apparatus having an evaporation type condenser. SOLUTION: Drain water condensing on the surface of an evaporator 50 is collected in a drain pan 74. When an outdoor air temperature becomes high, for instance, power consumption of an apparatus may exceed an allowable range in an ordinary operation. A high-pressure pressure switch 70 detects this case from the fact that a high-pressure-side pressure of a compressor 52 exceeds a set value, and the drain water collected in the drain pan 74 is sent out to the condenser 54 side by a drain pump 82. This drain water is sprayed over the condenser 54 from a spray unit 88 through the intermediary of a solenoid valve 90 which is put in an open state, interlocking with the high-pressure pressure switch 70.
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