A control method for multi-line and its self-cleaning

Abstract

The invention provides a multi-split air conditioner and a self-cleaning control method thereof, and relates to the technical field of air conditioner assembly. The self-cleaning control method of themulti-split air conditioner comprises the steps that the air inlet side air speed value F1 and the air outlet side air speed value F2 of each indoor unit are monitored in real time; and whether eachindoor unit starts self-cleaning or not is judged according to the corresponding air inlet side air speed value F1 and the air outlet side air speed value. Self-cleaning can be conducted, dust and impurities accumulated on the surface of the multi-split air conditioner are removed in time, the heat exchange efficiency of the heat exchanger is guaranteed, bacterium breeding and peculiar smell generation are avoided, and the air quality of the indoor environment and user health are guaranteed. Meanwhile, the situation that only one indoor unit can be started for self-cleaning is avoided, the multiple indoor units can be flexibly controlled for self-cleaning according to the actual situation, the self-cleaning efficiency is improved, meanwhile, the situation that only all the indoor units canbe started together for self-cleaning is avoided, and triggering of low-voltage protection is avoided.

Description

technical field [0001] The invention relates to the technical field of air conditioner assembly, in particular, to a multi-connector and a self-cleaning control method thereof. Background technique [0002] At present, with the maturity of central air-conditioning technology, central air-conditioning has gradually entered the homes of ordinary people from the original use of shopping malls and hospitals. [0003] Since the central air conditioner only needs one outdoor unit to match multiple indoor units, the central air conditioner is also called multi-connected, which greatly saves the storage space of the outdoor unit; It is more beautiful and can save indoor space at the same time. Household central air-conditioning has become the first choice for many new properties and young people. [0004] As people's requirements for health and air quality are getting higher and higher, air conditioners, as ordinary household appliances, not only need to achieve the effect of cool...

AI Technical Summary

Problems solved by technology

Since the indoor unit of the central air conditioner is generally installed in the ceiling, for the user, the installation position is high and difficult to clean, and some dust and impurities will accumulate on the surface of the heat exchanger of the indoor unit heat exchanger. If it is not cleaned in time, it will affect the heat exchanger. The heat exchange efficiency is low, and it is easy to breed bacteria, which will cause the air conditioner to produce peculiar smell, affect the air quality of the indoor environment, and even affect the health of users.

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