REFRIGERANT CONTROL METHOD FOR MULTI-SPLIT MACHINE CONNECTED IN SERIES

Disclosed is a refrigerant control method for a multi-split machine connected in series, comprising: S1: in a heating mode, comparing the superheat degree Tsh of each outdoor unit (12) with the average superheat degree Ta of multiple outdoor units (12); S2: if the superheat degree Tsh of the present...

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Bibliographische Detailangaben
Hauptverfasser:	XIONG, Meibing, HU, Weilong, XU, Yongfeng, MA, Xihua
Format:	Patent
Sprache:	eng ; fre ; ger
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:	Disclosed is a refrigerant control method for a multi-split machine connected in series, comprising: S1: in a heating mode, comparing the superheat degree Tsh of each outdoor unit (12) with the average superheat degree Ta of multiple outdoor units (12); S2: if the superheat degree Tsh of the present outdoor unit (12) is too high relative to the average superheat degree Ta, increasing the refrigerant amount into the present outdoor unit (12); and S3: if the superheat degree Tsh of the present outdoor unit (12) is too low relative to the average superheat degree Ta, decreasing the refrigerant amount into the present outdoor unit (12). Therefore, the refrigerant amount into each outdoor unit (12) is determined by comparing the superheat degree Tsh of the present outdoor unit (12) with the average superheat degree Ta. The refrigerant amount into each outdoor unit (12) is adjusted from a systemic overall perspective, so that the compressor (122) can work in a good operation range, avoiding problems resulting from too high or insufficient superheat degree of the compressor (122), and the operation reliability of the multi-split machine is increased.