REFRIGERANT CIRCUIT SYSTEM, CONTROL DEVICE AND CONTROL METHOD

A refrigerant circuit system includes a refrigerant circuit that includes a compressor, a condenser, a receiver tank, an expansion valve, an evaporator, an accumulator, a bypass circuit connecting a gas-phase portion of the receiver tank to the accumulator, and an opening/closing valve controlling o...

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Bibliographische Detailangaben
Hauptverfasser:	KAI Masakazu, TAKEZAWA Hideyuki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS HEAT PUMP SYSTEMS HEATING ICE-BOXES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING RANGES REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING REFRIGERATORS VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	A refrigerant circuit system includes a refrigerant circuit that includes a compressor, a condenser, a receiver tank, an expansion valve, an evaporator, an accumulator, a bypass circuit connecting a gas-phase portion of the receiver tank to the accumulator, and an opening/closing valve controlling opening and closing of the bypass circuit, and a control device that controls an operation of the refrigerant circuit, in which the control device performs a frost suppression operation of defrosting the evaporator by circulating a refrigerant ejected from the compressor in an order of the condenser, the receiver tank, the bypass circuit, the accumulator, and the compressor before pausing a internal heating operation in the refrigerant circuit.