Control method, controller, air conditioner, and storage medium for air conditioner

Abstract

This application proposes a control method, controller, air conditioner, and storage medium for an air conditioner. The air conditioner includes a compressor, an outdoor heat exchanger, and multiple indoor heat exchangers. The compressor, outdoor heat exchanger, and indoor heat exchangers are connected via refrigerant pipes. Each indoor heat exchanger has an indoor unit regulating valve at one end. The method includes: acquiring the coil mid-temperature, coil inlet temperature, and coil outlet temperature of the indoor heat exchangers in operation; determining a target coil temperature based on the coil mid-temperatures of all indoor heat exchangers in operation; and, in heating mode, for the target indoor heat exchanger, when the absolute value of the difference between the coil mid-temperature and the target coil temperature is less than or equal to a first preset threshold, controlling the opening degree of the indoor unit regulating valve based on the coil inlet temperature, coil outlet temperature, and coil mid-temperature of the target indoor heat exchanger. This application enables refined control, resulting in more stable indoor unit capacity output.

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