Refrigeration apparatus

A refrigerating device is provided with: a heat source-side unit comprising a compressor, a condenser, and a liquid receiver; a load-side unit comprising an expansion valve and an evaporator; a refrigerant circuit in which the heat source-side unit and the load-side unit are connected by piping and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Hiroshi Sata, Hisato Morita, Makoto Saito
Format:	Patent
Sprache:	eng
Schlagworte:	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 REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING REFRIGERATORS WEAPONS
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Beschreibung
Zusammenfassung:	A refrigerating device is provided with: a heat source-side unit comprising a compressor, a condenser, and a liquid receiver; a load-side unit comprising an expansion valve and an evaporator; a refrigerant circuit in which the heat source-side unit and the load-side unit are connected by piping and that circulates a refrigerant through the compressor, the condenser, the expansion valve, and the evaporator, in order; a control device that determines that the condenser is clogged; a first temperature detection unit that detects the condensation temperature; and a second temperature detection unit that detects the outdoor air temperature. The control device calculates the temperature difference of the condensation temperature and the outdoor air temperature detected by the first temperature detection unit and the second temperature detection unit, corrects the temperature difference, and determines whether the condenser is clogged using the corrected temperature difference and a threshold value A.