AIR CONDITIONER

PROBLEM TO BE SOLVED: To provide an air conditioner wherein a plurality of individually operable indoor machines are connected to an outdoor machine and wherein occurrence of liquid back can be suppressed in advance when the number of the used indoor machines increases during cooling operation.SOLUT...

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Bibliographische Detailangaben
1. Verfasser:	SUEHIRO HIDEYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING RANGES REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an air conditioner wherein a plurality of individually operable indoor machines are connected to an outdoor machine and wherein occurrence of liquid back can be suppressed in advance when the number of the used indoor machines increases during cooling operation.SOLUTION: A controller 41 acquires a temperature difference of a refrigerant between the upstream side and the downstream side of an outdoor machine electronic expansion valve 21 in cooling operation, and performs opening control of the outdoor machine electronic expansion valve 21 to reduce the acquired temperature difference. When the number of the operated indoor machines 30 increases, the controller 41 stops the opening control of the outdoor machine electronic expansion valve 21 for a prescribed time.