Prompt control method and system for indoor unit, indoor unit and multi-split central air conditioner

• Main Authors: LIANG BOQI, XU YONGFENG, WU DI, WANG XIAOMING, GUO FANGCHENG, XIAO JUNZHAO
• Format: Patent
• Language: Chinese; English
• Published: 11.08.2017
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

The invention provides a prompt control method and system for an indoor unit, the indoor unit and a multi-split central air conditioner. The multi-split central air conditioner comprises at least two indoor units. The prompt control method for the indoor unit is used for the indoor unit and comprises the steps that whether the coil pipe temperature and the outlet air temperature of the current indoor unit are within a working temperature range or not is detected in the operating process; and when the coil pipe temperature and the current outlet air temperature are not within the working temperature range, a dedusting prompt signal for the current indoor unit is sent out. According to the prompt control method for the indoor unit, the dust accumulation condition of a filter screen is detected by detecting the operating parameter change, caused by excessive accumulated dust on the filter screen of the indoor unit, of the indoor unit, a user is effectively reminded to remove dust in time, the heat exchange effec