Confused about central air conditioning and fresh air system Look over quickly

Confused about central air conditioning and fresh air system Look over quickly

Central air conditioning and fresh air systems are systems dedicated to improving indoor comfort. In real life, many people take it for granted that the air conditioner can also blow, and there is no need to use a fresh air system. In fact, central air-conditioning and fresh air systems are completely different concepts. They solve different problems in the residential environment, one for heating and cooling, and the other for improving indoor air quality. There are differences and connections between the two.

　　 1. What is the difference between the two?

　　 1. Different functions

　　 The basic function of the fresh air system is to ventilate the turbid indoor air, bring in fresh outdoor air, and realize indoor and outdoor air circulation. The powerful fresh air system can also purify the air, kill germs, and recover fresh air heat. The function of the central air conditioner is to cool or heat, adjust and control the temperature of the indoor air to make the indoor air suitable and comfortable.

Confused about central air conditioning and fresh air system? Take a look

　　2, the principle is different

　　The operating principle of the fresh air system is to use the power of the fan, and the ducting and exhaust technology to connect the outdoor air, form a circulation, and organize the movement of the indoor airflow, thereby improving the indoor air quality. The central air conditioner uses fan power to form indoor air circulation. The air passes through the cold source or heat source in the air conditioner to absorb or dissipate heat, change the temperature, and send it into the room to get the comfortable temperature people want.

　　 Can't figure out the central air conditioning and fresh air system? Take a look

　　 2. What are the connections between the two?

　　 1. Improve the comfort of life

　　 The combination of the two can enhance the comfort of life. Central air conditioning uses cooling and heating to keep the human body at a comfortable temperature. The fresh air system can ensure the freshness of indoor air. In layman's terms, if doors and windows are closed 24 hours a day in summer, and the central air conditioning and fresh air system are turned on, the indoor temperature will always be around 25 degrees, the indoor CO2 concentration will be controlled below the national standard 1000PPM, and the air will be fresh, clean and refreshing. When closing doors and windows and turning on the air conditioner, stuffiness and odor problems.

　　2, improve respiratory health index

　　 The combination of the two can improve the respiratory health index. In order to prevent hypoxia, the air conditioner must be ventilated frequently. The lack of air circulation can easily cause respiratory diseases. The bacteria concealed in the air conditioner can cause air conditioner disease. With the fresh air system, these hidden dangers can be completely eliminated.

Confused about central air conditioning and fresh air system? Take a look

　　 Take a fresh product that takes health into consideration as an example. For example, the BROAD Clean Fresh Air System completely isolates fresh air and exhaust air, realizes 100% fresh air ventilation, eliminates cross-contamination, and can prevent air-conditioning diseases. Electrostatic technology instantly kills bacteria and viruses in the air and prevents various airborne diseases. The z* is more powerful, accurately controlling the indoor PM2.5 concentration in single digits. Even in the severe haze season, it is not a dream to achieve the effect of 100 times cleaner indoors than outdoors, and make breathing healthy enough.

　　3, save air conditioning energy consumption

　　 The combination of the two can greatly save air-conditioning energy consumption. The fresh air system with heat recovery function exchanges heat between fresh air and exhaust air, which can reduce the loss of indoor temperature due to air exchange. It retains heat in winter and cold in summer, which greatly saves air conditioning energy consumption and significantly reduces air conditioning Investment costs and operating costs are even negative in cold and hot regions. For example, the Yuanda clean new fan mentioned above has an exchange efficiency of up to 80% when the temperature difference between indoor and outdoor reaches 25°C. Such high heat recovery efficiency will save users a lot of money in the long run.

Confused about central air conditioning and fresh air system? Look over quickly

　　 Three, can the two be combined into one?

　　 1. Can the two functions be combined into one?

　　 Unfortunately, so far, there is no household equipment on the market that can perfectly integrate air conditioning and fresh air functions (100% fresh air is generally recommended for households). Some central air-conditioning manufacturers have introduced some air conditioners with fresh air function before. However, this type of air conditioner is not recognized by the market because of its "poor fresh air performance".

　　 The main function of the air conditioner is to adjust the temperature. Its function with fresh air is that when the indoor and outdoor control temperature is different, the fresh air enters the room; once the indoor and outdoor pressure reaches a balance or is higher than the outdoor pressure, the fresh air stops. Therefore, the volume of fresh air is difficult to control, and the indoor and outdoor air exchange rate is less than 20%, which is why it is called "fake fresh air". This limited supply of fresh air cannot meet the needs of users for fresh air. This alone is destined to be unable to replace the professional fresh air system.

Confused about central air conditioning and fresh air system? Look over quickly

Now there is an intelligent ventilation system for central air conditioning in the market. In fact, this system is quite foolish. Its principle is the joint installation of air conditioning and fresh air systems. In the final analysis, it is a combination of fresh air system and central air conditioning, rather than a real fresh air function. Air conditioning.

　　2. Can the pipes and tuyere be shared?

　　 The air-conditioning system pipe (water pipe) runs with refrigerant (water or freon), while the fresh air system pipe (wind pipe) runs with air, so the two system pipes cannot be shared. In order to prevent cross-contamination, it is recommended not to share the air outlets of air conditioners and fresh air, but they can all be arranged in the ceiling cleverly. The air outlet of the air conditioner is opened according to the actual air outlet size of the indoor unit, while the fresh air outlet is smaller and the layout is more flexible. The two systems should be installed together, which is conducive to the layout of the best pipelines, and it is convenient to design the position of the ceiling and the wall hole.

Confused about central air conditioning and fresh air system? Take a look

　　 From the above, we can know that central air conditioning and fresh air systems are essential systems for creating a comfortable home. Although the two can't replace each other, using them together can make your home warm and healthy.