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2012

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01

Air conditioner


air conditioner


Classification of 1. household air conditioners
1. Classification according to structure: Integral type is also called window type and split type air conditioner
2. Classification by function: single cooling type and hot and cold type
3. Classification according to operation mode: ordinary type, wire control type and remote control type
4. Other classification methods: indoor unit mathematics is divided into one dragging two and one dragging three; Climate environment is classified as T1, T2 and T3, and T1 air conditioner is generally used in China.
Basic structure of 2. household air conditioner
Composed of four parts: refrigeration system, ventilation system, electrical control system and box system
The refrigeration system is the most basic system of each air conditioner, and it is the main part of realizing the cooling or heating function of the air conditioner.
The ventilation system is the part that realizes the heat exchange. It sends the cold generated by the refrigeration system to the room and sends the heat in the condenser to the outside.
Electrical control is the operating system of the air conditioner. There are two ways of mechanical control and electronic control. With it, the air conditioner can work according to people's wishes.
The box system is the supporting base frame of the air conditioner, and various parts are installed on it. The four systems form a whole according to their respective functions and become a complete air conditioner.
The working principle and main functions of 3. air conditioner
Through the motive force provided by the compressor to the freon, the fluorine flows in a certain direction in the whole system, and the three-state transformation of the freon is controlled by adding a capillary tube at a certain position in the system, so as to achieve the purpose of heat absorption and heat release. The heat absorbed and released is diffused through the evaporator and condenser, and the energy is rapidly diffused through the internal and external fans to achieve the purpose of heat dissipation.
The main functions of the air conditioner: lower temperature, dehumidification and moisture-proof: filter the air; the new air conditioner is equipped with an electrostatic air filter, which can effectively filter 0.01 micron dust particles.
Specifications and models of 4. air conditioners
1. Specifications of air conditioner
It is divided by cooling capacity (or heating capacity). Cooling capacity refers to the heat absorbed from the room or a certain area and transferred to other areas per unit time when the air conditioner is in cooling operation. The national standard stipulates that the unit of calculation is "watt" or "kilowatt", and the symbol is "W" or "KW". Some manufacturers and consumers in the market also use "horse" to indicate the specifications of air conditioners. Horse is a unit of power used before, and its relationship with "watt" is that 1 horsepower is about 735 watts. Generally, one air conditioner is 2500W, two air conditioners are 5000W, and three air conditioners are 7100W.
When choosing an air conditioner, you should first measure the usable area of your single room, and then multiply the usable area of your room by 150-200W per square to know the cooling capacity you need. Generally, the usable area of a suitable room (2500W) is 11-15 square meters, and the usable area of a suitable room (3500W) is 18-25 square meters, the quality of some air conditioners determines the size of their cooling capacity, depending on the brand.
The maximum allowable length of the connecting pipe of the air conditioner shall not exceed 8 meters, 1.5-2 shall not exceed 10 meters, and more than 2 shall not exceed 15 meters. The height difference between indoor and outdoor machines shall not exceed 5 meters.
2. Meaning of domestic air conditioning symbol:
For example, the model number is KF(R)-- 23GW, KC-23, KF-50LW, k represents air conditioner f represents split r represents cold and warm c represents the number behind the horizontal bar of the window machine represents the refrigerating capacity of the people, for example: 23 represents the refrigerating capacity of 2300W, l represents indoor floor type g represents indoor on-hook, w represents outdoor unit.
The main difference between 5. split air conditioner and window air conditioner
Split air conditioner can make indoor noise reduction is generally about 40dB, but the structure is more complicated to install, and the window air conditioner is simple to install, and does not leak fluorine during installation, and the manufacturing cost is low. However, the noise is generally around 50dB, and the applicable area is small.
The cause of the noise of the air conditioner: mainly caused by the motor, compressor, and air outlet, but the frequent start of the compressor and improper installation will also cause noise.

Keywords: Sanshe electrical switch socket