Buy air conditioning is inverter good or fixed frequency good
Buy air conditioning is inverter good or fixed frequency good, a summer, people have opened the air conditioning, then those who want to buy air conditioning is very confused in the end to buy such a better air conditioning. Then, and I come together to see buy air conditioning is inverter good or fixed frequency good it.
buy air conditioning is inverter good or fixed frequency good 1What is fixed frequency air conditioning?
Fixed-frequency air conditioning is when the indoor temperature reaches the air conditioning temperature we set, it will stop working, when the room temperature drops, the fixed-frequency air conditioning will turn on the work again, so the use of the phenomenon of on-off - on-off, the temperature difference is large, the person will feel uncomfortable.
What is an inverter air conditioner?
Inverter air conditioning is the upgraded version of fixed frequency air conditioning, in the air conditioning inside a frequency converter, when the indoor temperature reaches the set air-conditioning temperature will enter the low-frequency operation, will not be closed, that is, it has always been the open state, one night, one degree of electricity is the saying is this way to come, and the inverter air conditioning in a low-temperature and low-pressure situation can be normal start-up, there is no temperature difference, the person is very The inverter air conditioner can start normally in low temperature and low pressure, no temperature difference, people are very comfortable.
It is reasonable to say that fixed-frequency air conditioning on - off, in the middle are not used, should be more power saving ah! Why do they say that inverter air conditioners save electricity? Air conditioning experts tell us that the power consumption when the air conditioner is on is higher than the power consumption when it is used all the time, so the power consumption will be higher. But is this really true? In fact, it is not, only in the continuous use of more than 6 hours or more, inverter air conditioning than fixed frequency air conditioning to save electricity.
But inverter air conditioning is very expensive, and there is a problem, especially easy to break, according to statistics, the same brand of products, inverter than fixed-frequency failure ratio is much higher, inverter air conditioning has been running non-stop, and change the frequency, which seriously affects the service life of the components, such as a person running, fixed-frequency is to run for a while and then rest for a while, inverter is to run faster and slower all the time run, will be prone to bad, and the internal parts of inverter air conditioning, will be easy to run. Bad, and frequency internal parts are high-tech, maintenance of a basic can buy a new fixed-frequency air conditioning.
So we do not have to get entangled in the purchase of fixed-frequency or frequency, if the family conditions are good, the pursuit of comfort, then buy inverter air conditioning, if it is out of the principle of saving money, then certainly buy fixed-frequency air conditioning, compared to buy an inverter air conditioning is enough to buy 2 sets of fixed-frequency air conditioning, and fixed-frequency air conditioning for a dozen years will not be bad
Note: air conditioning is divided into indoor and outdoor units, indoor units can only be put indoors, outdoor units can only be put outdoors, indoor units can only be put in the air conditioning. The first one is the one that you can put in the room, and the second one is the one that you can put in the outdoor.
Mom was afraid that thieves would steal the outdoor air conditioner and moved it in without authorization, and she almost fainted from the heat! A Hui rushed home to see this scene crying and laughing.
Buying an air conditioner is better inverter or fixed frequency2
Difference between inverter and fixed-frequency air conditioners
Before we understand the difference between inverter and fixed-frequency air conditioners, let's first understand the principle of general air conditioning. The refrigerant used in air conditioning is usually Freon, which releases a lot of heat when it changes from gas to liquid, and absorbs a lot of heat when it changes from liquid to gas, and air conditioning is designed according to this. The overall principle of the air conditioning is the same, that frequency air conditioning and fixed frequency air conditioning is the difference in what place?
Inverter air conditioners save energy?
First of all, let's calculate the cost of air conditioning use. As an example, if the air conditioning according to the annual use of three months, 30 days a month, the average daily running time of 8 hours, cooling running time of 960 hours, according to the average air-conditioning power of 2000W calculation, cooling period, the use of fixed-speed 5 air conditioning (EER = 2, 6) the total power consumption of 1,920 degrees, if the use of the current Shanghai standard 5 level of inverter air conditioning (EER = 3, 3), total If you use the current Shanghai standard 5 level inverter air conditioner (EER = 3, 3), the total power consumption of 1510 degrees, saving electricity for about 410 degrees, each set of annual savings of more than 150 yuan in electricity costs. This is a great way to save money when you use it for a longer period of time.
Why do inverter air conditioners need to be vacuumed?
1, from the pipeline to drain the air Li nitrogen, to achieve a vacuum state.
2. Vacuum drying can remove water from the system.
In an atmospheric pressure, the boiling point of water is 100 ℃, but the use of vacuum pumps with the increase in vacuum, the boiling point is rapidly reduced. If the boiling point drops below the ambient temperature, the water in the piping will evaporate. When the vacuum level is Okgf/cm. absolute pressure (-1kgf/cm2 gauge pressure), the water in the system can be completely evaporated. The presence of water in the system can cause chemical reactions that affect the refrigeration cycle, oxidation of the refrigerant, electrical insulation, dilution of the refrigerant oil, etc., which can result in damage to the compressor.
How to choose the right evacuation pump?
The right pump must be selected before evacuation. If you choose a small pump, the pumping time will be too long and the vacuum level will not be reached. The selected vacuum pump should be able to make the system vacuum level reach Okg/cm after pumping (gauge pressure is -1kg/cm2). The following two factors determine the performance of the vacuum pump:
1, select the expected requirements to achieve the vacuum degree of the pump (i.e., to achieve the gauge pressure of -01MPa):
2, the requirements of a larger exhaust volume (greater than 40l/min).
Inverter air conditioning vacuum steps
1, in the leakage test qualified, discharged nitrogen, the pressure gauge connector connected to the outdoor machine large and small valves. Fluorine injection nozzle connected to a vacuum pump, high and low pressure vacuum at the same time. Turn on the vacuum pump, open the "L0" and "H1" knob;
2, vacuum to -0.1MPa (-1kgf/cm2), and then continue to pump 0.5-1.0 hours, and then turn off the high-pressure end. VH" and low-pressure end "VL" knob, stop the vacuum pump;
3, the connection of the vacuum pump hose to the refrigerant charging tank, drain the hose air, open the low-pressure end "VL" knob, to the system of the low-pressure end of the "VL" knob, to the system of the low-pressure end of the "VL" knob, to the system of the low-pressure end of the "VL" knob. Turn on the vacuum pump, open the "VH" knob at the high pressure end, pump for 30 minutes at the high pressure end, then open the "VL" knob at the low pressure end, pump at the low pressure end until the vacuum level reaches 0.1MPa (gauge pressure -1kgf/cm2).
If the vacuum level reaches -0,1MPa (gauge pressure) or lower, then the vacuum pumping is finished, turn off the vacuum pump, leave it for 1 hour, and then check whether the vacuum level changes. If there is a change, there is a leak. Should check the leak, the work of repairing the leak.
Air conditioner wall-hanging good or standing cabinet good?
Air conditioners are categorized by style: single unit (window unit), wall-mounted air conditioners, standing cabinet air conditioners, built-in air conditioners Patio air conditioners.
1, single unit (window unit): mainly used for cooling, small air supply, suitable for small rooms, cheap, noisy.
2, wall-mounted air conditioning: effective air distance (7 meters), low noise, high energy efficiency, some models with electric auxiliary heating. Mainly for the bedroom, study, office and other places where the environmental noise requirements are relatively high.
3, vertical cabinet air conditioning: effective air distance (15 meters), power, most models with electric auxiliary heating, power consumption; mainly for living rooms, conference rooms, entertainment centers and other types of places.
4, embedded (patio type): that is, the ceiling machine, the main body of the indoor machine is hidden in the ceiling, does not take up space in the activity area; and the inner machine using four sides of the wind, the air volume is uniform, the effective use of a wide range.
What is the best way to cool and heat an air conditioner?
Air conditioning according to performance is divided into: single-cooled air conditioning, cooling and heating air conditioning, electric auxiliary heating air conditioning.
1, single-cooled air conditioning: mainly used for refrigeration, small air supply, suitable for small rooms, cheap, noisy.
2, cooling and heating air conditioning: not only refrigeration and dehumidification, and can heat pump heating.
3, electricity-assisted heating air conditioning: widely used in split air conditioners, to strengthen the heating effect, doing poor efficiency, power consumption.
Through the above, you made a decision? But no matter which kind of air conditioner to buy, first of all, the quality must be guaranteed. As for the choice of air conditioning brand, you can refer to the Pacific Computer Network IT Encyclopedia has to provide information on the top ten brands of air conditioning:
Gree GREE, air conditioning industry iconic brand, energy-saving and environmental protection refrigeration equipment engineering and technology research centers, G-Matrik DC inverter technology is famous, Zhuhai Gree Electric Appliances Co.
Haier Haier, began in 1984, the world's leading complete package of power efficiency. Haier Haier, started in 1984, the world's leading provider of complete home appliance solutions, China's top 500 enterprises, started with the production of refrigerators, household appliances enterprise group, Haier Group Corporation
Midea Midea, started in 1981, the world's leading manufacturer of white goods and brands, the world's top 500 enterprises, large-scale integrated enterprise group, listed companies, Midea Group Corporation
Hisense Hisense, started in 1964, the center of G-Matrik DC inverter technology famous, Zhuhai Gree Electric Appliance Co. Hisense , started in 1969, the domestic large-scale white goods manufacturing enterprises, involved in home appliances / communications / information / real estate and other fields of large electronic information industry group, Hisense Group
CHIGO CHIGO , created in 1994, high-tech enterprises, with a large and complete air-conditioning industry chain of enterprises, the early launch of the "spare parts for life free of charge to replace" service, the Guangdong Zhigao Air Conditioning Co. Guangdong Zhigao Air Conditioning Co.
DAIKIN Daikin, founded in 1924 in Japan, a large multinational enterprise, the top ten brands of central air conditioning, Japan's leading domestic sales brand, Daikin (China) Investment Co.
Panasonic Panasonic, in 1918 in Japan, the world's leading consumer electronics brand, involving home appliances/digital audio-visual electronic office products, aviation and many other areas, the company has been the first time in the world, and the first time in the world, it is the first time in the world that the company has been the only one in the world. Products/Aviation and many other fields, the world's leading comprehensive electronic technology enterprise group
KELON KELON, began in 1984, focusing on refrigerators and other white goods in the field of R & D / manufacturing / marketing and service of listed companies, Hisense Group, Hisense KELON Electric Appliances Co.
AUX AUX, began in 1986, the top ten brands of air conditioning, dedicated to intelligent power equipment / household appliances, etc.
AUX AUX, began in 1986, air-conditioning ten brands. Dedicated to intelligent power equipment/home appliances and other modern manufacturing, real estate/health care/financial and other modern service industries, high-tech enterprises, AUX Group Co.
Mitsubishi Mitsubishi, founded in 1921 in Japan, the world's top 500 enterprises, committed to cutting-edge technology and expertise research and development activities, Mitsubishi Electric (China) Co.
, the top ten brands of air conditioning are the same, the top ten brands of air conditioning are all the same, Hisense Group, Hisense Kolon Electric Co.
, the top ten air conditioning brands are famous in the market air conditioning brand , is the industry brand leading, advanced technology, quality is not to mention, it is recommended that consumers buy.
Buy air conditioning is inverter good or fixed frequency good 3
Advantages of inverter air conditioning
1, comfortable
Comfort, is the biggest advantage of inverter air conditioning. This starts with the working logic of inverter air conditioners and fixed-frequency air conditioners: for fixed-frequency air conditioners, it will be cooling when it is just turned on. When the indoor temperature drops to the set temperature, the air conditioner will stop cooling (shutdown). Until the room temperature rises again, the fixed-frequency air conditioner will continue to cool.
For an inverter air conditioner, it also cools at full capacity when it is just turned on. But when the indoor temperature drops to the set temperature, the air conditioner changes the frequency of cooling - it continues to cool, but in a small amount, to maintain the indoor temperature.
One is a walk in the park, and the other is always slow, and for those who are indoors, it must be the latter that provides more comfort. When a fixed-frequency air conditioner is cooling, it blows out a very cold wind, making people feel cold. When a fixed-frequency air conditioner is shut down, the temperature in the room rises rapidly, resulting in a large variation in the temperature inside the room.
2, power saving
The start and stop of the air conditioner refers to the work and stop of the compressor (the compressor is installed on the external unit of the air conditioner). The moment the compressor starts, it generates a lot of current and consumes a lot of electricity - to put it bluntly, it's very power-hungry.
The compressor of an inverter air conditioner will only start once when it is just turned on, and after that, it will not generate any more starting current. So inverter air conditioners work more efficiently than fixed frequency air conditioners, which start and stop more often.
Therefore, if you are environmentally conscious or have a high pursuit of comfort (e.g. bedroom use), it is recommended that you choose an inverter air conditioner.
Advantages of fixed-frequency air conditioning
1, save money
Inverter air conditioning saves electricity, but it does not mean that it saves money. First of all, the selling price is different, the same quality, parameters of the premise, inverter air conditioning prices will be more expensive than the fixed frequency air conditioning nearly 1000 yuan. Inverter air conditioning does save electricity, but how long to use, in order to save a thousand dollars of electricity - if the annual use of 3 months of air conditioning, three months of daily use of 8 hours, then, probably need 8 ~ 10 years line. But now the quality of air conditioning, can not be used to 8 years are a problem.
Secondly, the late maintenance costs are relatively high, in order to add fluorine, for example (air conditioning is not moving on the "lack of fluorine"). The refrigerant for fixed-frequency air conditioners is generally R22, and inverter air conditioners generally use R32 or R401a models. The former is nearly half the price of the latter.
2, life
The same quality, fixed-frequency air conditioning life is higher. This is well understood, inverter air conditioning inside more features, need more devices. Comparatively, the frequency of malfunctioning is also higher. There are many fixed-frequency air conditioners that have never experienced maintenance in their lifetime, which is rarely the case with inverter air conditioners.