FIELD: vapor compression cooling machines and plants and processes of exploitation thereof in off-season and cold periods.
SUBSTANCE: cooling machine has condenser cooled by ambient air and vapor-and-liquid heat exchanger. When ambient air temperature is equal to coolant condensation point temperature below 20oC right heat-exchanger side creates the second circulation loop, which is parallel to main loop. The second circulation loop includes control means with drive. Cooling machine formed accordingly to the second embodiment has low-pressure coolant switch linked to drive.
EFFECT: increased refrigerating factor, reduced compressor power consumption.
5 cl, 6 dwg
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