Control method of variable frequency air conditioner

Abstract

The invention relates to a control method of a variable frequency air conditioner. The variable frequency air conditioner comprises a compressor, a four-way change valve, an outdoor heat exchanger, an outdoor fan, a throttling element, an indoor heat exchanger and an indoor fan, wherein an exhaust outlet of the compressor is provided with a compressor exhaust temperature sensor; an outdoor environment temperature sensor and an outdoor heat exchanger temperature sensor are arranged on the outdoor heat exchanger; and an indoor environment temperature sensor and an indoor heat exchanger temperature sensor are arranged on the indoor heat exchanger. When more than one temperature sensor breaks down, the variable frequency air conditioner can be operated according to the following control method of defaulting the detection temperature of the indoor environment temperature sensor to be 26 DEG C under a refrigeration, dehumidification or ventilation mode when the indoor environment temperature sensor breaks down. The invention can ensure that the air conditioner can be still normally used when partial sensors break down so as to ensure that a consumer furthest uses the variable frequency air conditioner with faults and reduce troubles caused by the faults of the air conditioner to the consumer.

Description

technical field [0001] The invention relates to an inverter air conditioner, in particular to a control method for an inverter air conditioner. Background technique [0002] If the compressor is compared to the heart of the human body in the air conditioning system, then the sensor can be compared to the nerves of various parts of the body in the inverter air conditioning system. Most of the inverter air conditioners on the market are equipped with the following temperature sensors, see the attached figure 1 , including an outdoor ambient temperature sensor 5 , a compressor discharge temperature sensor 2 , an outdoor heat exchanger temperature sensor 4 , an indoor ambient temperature sensor 10 and an indoor heat exchanger temperature sensor 9 . [0003] The functions of each temperature sensor are roughly as follows: the outdoor ambient temperature sensor is used to detect the outdoor air intake temperature, which plays a role in protecting the system in defrosting or harsh...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a control method for variable frequency air conditioners that is flexible in operation, can still be used normally when some temperature sensors fail, and reduces the troubles caused by air conditioner failures to consumers, so as to overcome the problems of the prior art. inadequacies in

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