HEAT MEDIUM CIRCULATION DEVICE

[Object] The present invention provides a heat medium circulation device including a pressure relief valve and an air vent valve placed in a pipe of a water circuit in an outdoor unit, the pipe of the water circuit can be shortened, the outdoor unit can be downsized, and maintenance of the heat medi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NAKATANI, Kazuhito, YOSHIDA, Jun, AOYAMA, Shigeo
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING DOMESTIC HOT-WATER SUPPLY SYSTEMS DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS ELEMENTS OR COMPONENTS THEREFOR FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	[Object] The present invention provides a heat medium circulation device including a pressure relief valve and an air vent valve placed in a pipe of a water circuit in an outdoor unit, the pipe of the water circuit can be shortened, the outdoor unit can be downsized, and maintenance of the heat medium circulation device is easy.[Solving Means] The heat medium circulation device 300 includes: a refrigerant circuit 30 formed by annularly connecting, to one another, a compressor 3, a heat source-side heat exchanger 1, an expansion device 5 and a use-side heat exchanger 2; and a heat medium circuit 40 through which heat medium cooled or heated in the use-side heat exchanger 2 by refrigerant discharged from the compressor 3 is circulated. The heat medium circuit 40 includes a pressure relief valve 9 which discharges the heat medium in the heat medium circuit 40 and an air vent valve 10 which discharges air in the heat medium circuit 40, and the pressure relief valve 9 and the air vent valve 10 are located downstream of the use-side heat exchanger 2. The pressure relief valve 9 and the air vent valve 10 are connected to a branch pipe 50 which branches off from the heat medium circuit 40 at the downstream of the use-side heat exchanger 2.