Control method of fresh air conditioner

Abstract

The invention belongs to the field of fresh air conditioners and particularly provides a control method of a fresh air conditioner. In order to solve the problem that the fresh air conditioner is incapable of automatically completing carbon dioxide concentration adjustment in a shutdown state, the control method comprises the steps of obtaining a preset startup moment and an outdoor environment temperature of the fresh air conditioner, correcting the preset startup moment, determining an early starting moment, and detecting an indoor carbon dioxide concentration P1 and an indoor heat exchangercoil temperature Ta when the early starting moment is reached; comparing the carbon dioxide concentration P1 with a preset concentration Pa and the coil pipe temperature Ta with a first set temperature T1; and when the P1 is larger than or equal to the Pa and the Ta is smaller than the T1, controlling an air feeder to operate at a first set rotating speed V1, and controlling a compressor to operate at a first heating frequency f1. The carbon dioxide concentration adjustment of the fresh air conditioner is controlled, such that the problem that the carbon dioxide concentration adjustment of the fresh air conditioner cannot be completed in the shutdown state is solved, and the early starting moment is enabled to be more accurate.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and specifically provides a control method for a fresh air conditioner. Background technique [0002] In a room with a relatively closed environment, there will often be a high concentration of carbon dioxide, which makes the human body feel chest tightness. Usually, the suitable concentration of carbon dioxide for the human body is 500PPM. At this time, people can feel comfortable breathing. If the concentration of carbon dioxide is higher than 700PPM will make people feel chest tightness, and if things go on like this, it will cause irreversible damage to the human body. [0003] The fresh air conditioner with the fresh air function has been used by more and more users. Usually, the user will turn on the fresh air system and the air conditioning system after returning home from get off work. However, due to the long-term closed indoors, the indoor carbon dioxide concentration may be hi...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the existing fresh air air conditioner cannot independently complete the adjustment of the carbon dioxide concentration in the shutdown state, the present invention provides a control method for the fresh air air conditioner, the fresh air air conditioner includes a fresh air conditioner system and an air-conditioning system, the fresh air system includes a blower, the air-conditioning system includes a compressor and an indoor heat exchanger, and the control method includes:

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