FIELD: refrigerating installation. SUBSTANCE: the installation has at least in one refrigeration cycle at least one refrigerating oil including base oil and at last one refrigerant; the refrigerating installation contains oil of polyol ester as one of the base oils, and contains system hydrofluocarbon refrigerant as refrigerant, having a purity exceeding 99.95 weight percent, and the quantity of chlorine-containing system refrigerant in mixing with refrigerant makes up 80 part per million. EFFECT: enhanced efficiency.
Title |
Year |
Author |
Number |
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1990 |
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