Multi-split air conditioning system and control method thereof

• Main Authors: ZHOU YANG, WANG SHANYUN, QU LEJIAN
• Format: Patent
• Language: Chinese; English
• Published: 21.11.2023
• Subjects: 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

The embodiment of the invention discloses a multi-split air conditioning system and a control method thereof, relates to the technical field of air conditioners, and can improve the pairing detection efficiency of indoor units and electronic expansion valves in the multi-split air conditioning system. The air conditioning system includes: an outdoor unit; an electronic expansion valve is arranged between each indoor unit and the outdoor unit, and each indoor unit comprises a first temperature sensor used for detecting the temperature of the indoor unit; a plurality of electronic expansion valves; the controller is configured to start the outdoor unit, all the indoor units and all the electronic expansion valves so that all the indoor units can operate in a refrigeration mode. Closing the target electronic expansion valve; after a second preset duration, a second temperature value of each indoor unit at a second moment is collected, and the indoor unit with the maximum second temperature value is selected as a