HEAT SOURCE UNIT AND REFRIGERATION DEVICE

A heat source unit (10) connected to a utilization-side unit (50) and configured to perform a refrigeration cycle includes a low-stage compressor (23), a high-stage compressor (21), a four-way switching valve (150), a low-stage pipe (24c), and a controller (101). The low-stage pipe (24c) is provided...

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Bibliographische Detailangaben
Hauptverfasser:	KANEDA, Masahiko, TAKEGAMI, Masaaki, KIMURA, Naoto
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	A heat source unit (10) connected to a utilization-side unit (50) and configured to perform a refrigeration cycle includes a low-stage compressor (23), a high-stage compressor (21), a four-way switching valve (150), a low-stage pipe (24c), and a controller (101). The low-stage pipe (24c) is provided in parallel with the low-stage compressor (23), and the refrigerant flows therethrough while the low-stage compressor (23) is stopped. The controller (101) outputs an instruction signal for actuating the four-way switching valve (150), to the four-way switching valve (150) while the low-stage compressor (23) is stopped and the high-stage compressor (21) is operating.