Control method for fresh air conditioner

Abstract

The invention belongs to the technical field of air conditioners, and particularly relates to a control method for a fresh air conditioner. The invention aims to solve the problem that it is difficultfor a user to quickly and accurately determine an operation gear, most matched with the current indoor environment, of the fresh air conditioner. In order to achieve the purpose, the fresh air conditioner can select gears of fresh air modules according to the concentration of carbon dioxide in indoor air, the concentration of carbon dioxide is obtained multiple times in the indoor air exchange process, and therefore, the operation states and the operation gears of the two fresh air modules are adjusted according to the change condition of the concentration of the indoor carbon dioxide after the fresh air modules operate, and the operation gears of the fresh air modules can be determined by the fresh air conditioner according to the indoor actual air state. Indoor dirty air can be quicklyexchanged, and unnecessary energy waste caused by the fact that the operation gear is too high can be avoided.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to a control method of a fresh air conditioner. Background technique [0002] The current fresh air air conditioner is usually composed of a purification device, a blower fan and other accessory devices. The fresh air air conditioner is installed indoors. The fresh air air conditioner can purify the external air pollutants PM2.5, formaldehyde, toluene, TVOC, dust, pollen and other allergens, and send the treated clean air into the room. Indoor dirty air and high concentration of CO 2 Exhaust to the outside, in order to increase the oxygen content of the indoor air, reduce the carbon dioxide concentration in the indoor air, and avoid discomfort such as sleepiness and dizziness caused by the high indoor carbon dioxide concentration. [0003] Usually, the user will select the operating gear of the fresh air air conditioner and control the air exchange rate in the...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems in the prior art, that is, to solve the problem that it is difficult for the user to quickly and accurately determine the operating gear of the fresh air conditioner that best matches the current indoor environment, the present invention provides a control method for the fresh air conditioner, The fresh air air conditioner includes a first fresh air module and a second fresh air module, and the control method includes: when the fresh air air conditioner executes a first fresh air mode, making the first fresh air module and the second fresh air The module operates at a high level at the same time; obtain the nitrogen dioxide concentration in the air in the space where the fresh air air conditioner is located; if the carbon dioxide concentration drops to a first set value, make the first fresh air module and the second fresh air module The two fresh air modules operate at the middle gear at the same time; obtain the carbon dioxide concentration in the air in the space where the fresh air air conditioner is located; if the obtained carbon dioxide concentration drops to the second set value, turn off the first fresh air module and make the second fresh air module operate at a low gear, wherein the first set value is greater than the second set value

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