The weather is getting hot, and everyone is also considering buying an air conditioner. Here I will share with you some precautions before purchasing. If there are any shortcomings, please add: 1: Floor location: whether it is on the top floor ( If it is on the top floor, it will easily absorb sunlight in summer). PS: If it is on the top floor, the air conditioner should be larger than the original one. 2. Room layout: Whether the windows directly let the sun shine into the home in the afternoon (sun heat and ultraviolet rays in the afternoon). Are there many indoor corners? PS: If it is exposed to the west and has too many corners, you should also choose a larger one. Three: People: How many people are in the family, whether there are more children or elderly people. PS: It mainly analyzes the flow of people at home. The large flow of people needs to be taken into consideration for air conditioning, cooling and heating. Four: Practical area of ??air conditioner (Popular version): Within 12 square meters = 1 small horse (23 machines); Within 16 square meters = 1 horse (25, 26 machines); Within 20-23 square meters = 1.5 horses (35 machines); 25- Within 33 square meters = 2 horses (0 machine) Within 35-40 square meters = 2.5 horses (60 machines) Within 40-50 square meters = 3 horses (72 machines) This value is suitable for users with simple conditions, such as the above For conditions such as 1, 2, and 3, the P number of the air conditioner will be relatively increased. Five: How to choose an air conditioner: It is better to choose a large air conditioner than a small one (the maximum error here is about half a P, which is equivalent to 12 square meters. Originally, I need to buy a small 1P, but I live on the top floor. Then I have to buy at least a 1P). , factors that affect the cooling capacity required in a room include not only the size of the room, but also the direction of doors, windows, exterior walls, number of residents, electrical equipment, etc. are also important factors. 6: Air conditioning accessories At present, the market understands: Pipeline: The original package of the air conditioner is about 3 meters, and the cabinet unit is about 4 meters. (Mitsubishi Electric's pipelines are one meter longer, that is, 4 meters for the hanging machine and 5 meters for the cabinet machine). Bracket: Nowadays, manufacturers do not provide brackets for delivery, but small stores provide them, and hypermarkets sometimes require money to buy them. (Mitsubishi Electric’s original package includes the original bracket, and some Haier models include the bracket). 7: Air conditioner installation conditions This is usually very important. Air conditioners are semi-finished products, and if some conditions are not met, additional money will be required. Three points for quality, seven points for installation. Therefore, understanding the installation conditions of air conditioners will also save a lot of time and unnecessary trouble in our purchase. 1. Bracket (except for some models of Mitsubishi and Haier, which are provided with brackets): If your community has an air conditioner, you don’t need a bracket. If you need to hang the outdoor unit on the wall, you need to buy it. Depending on the situation, limited quantities will be delivered during holidays. 2. Pipes: Pipes other than the original packaging need to be purchased at a cost. 3. Install the outdoor unit: Can the outdoor unit go out from this floor? Some friends have anti-theft nets on their windows and they are welded shut. If the outdoor unit cannot be taken out, it needs to be lifted down from upstairs. Resulting in crane costs. 4. Wall holes: As far as I know, there is no one-time hole punching for free (it is made by a professional punching machine). The holes are all made with free impact drills. 5. This is very important. Cabinet machines with more than 2 horsepower have no plugs. (Due to the large power, an air safety switch needs to be installed) These are some basic things of the air conditioner, and some of them still depend on personal preference. I’m so tired, it’s time to eat! Consumers are reminded to pay attention to the following matters when purchasing air-conditioning products to minimize disputes. Tip 1: Avoid the peak purchasing period. The peak period for air-conditioning consumption is mainly concentrated in July and August, during which merchants are often in a negative working state. Compared with the strong sales volume, the transportation vehicles and installation personnel are far from satisfied, which can easily lead to untimely installation and after-sales service. Consumers are advised to avoid peak buying periods and prepare in advance. Tip 2: Avoid conceptual confusion and do not blindly pursue fashion. New products are emerging in the air-conditioning market, and there are various healthy air-conditioning concepts such as photocatalyst, cold catalyst, oxygen bar, negative ions, nanometers, etc. It is understood that, except for light wave air conditioners, all current "healthy air conditioners" have not passed the testing of national authoritative agencies, and the various concepts and functions promoted by manufacturers are full of moisture.

When purchasing, consumers should comprehensively consider the performance-price ratio of the product, and should not blindly pursue fashion and spend money to buy a bunch of "fancy" functions. Tip 3: Check three important performance indicators. Cooling capacity: It is an important basis for consumers to purchase air conditioner products. If the cooling capacity is too small, the predetermined cooling effect will not be achieved; if the cooling capacity is too large, it will cause a waste of resources. National standards stipulate that the actual measured value of cooling capacity should not be less than 95% of the rated value. Energy efficiency ratio: refers to the ratio of the cooling capacity to the effective input power of the air conditioner during cooling operation. The size of this value reflects the energy saving of the air conditioner product. The larger the energy efficiency ratio value, the smaller the electrical power required and the smaller the power consumption. Noise: The noise produced when the air conditioner is operating. If the noise is too loud, it will seriously affect consumers' lives. Tip 4: Check the certification marks. Currently, there are two mandatory certification marks for air-conditioning products: one is the "3C mark", which is issued by the National Certification and Accreditation Administration; the other is the "energy efficiency mark", which contains the energy efficiency ratio*** It is divided into five levels, with level one being the highest and level five being the lowest. When purchasing air conditioners, consumers should focus on checking these two marks and not be dominated by other certifications. Tip 5: Install according to specifications. There are corresponding technical specifications for the installation of air conditioners. Consumers must not randomly choose the installation location or replace random accessories in pursuit of environmental beautification. Before installation, you should check whether your own power supply, voltage, leakage protector, etc. can meet the requirements, and try to avoid places where flammable gas leaks, artificial strong electricity is turned on, and magnetic fields are directly affected. After installation, it should be carefully inspected. Finally, perform a test run according to the requirements of the instruction manual. Tip 6: Correctly adjust the set temperature of the air conditioner. Usually when resting, sleeping, etc. with less activity, the room temperature is around 25°C and the human body feels comfortable. If the temperature is set too low, in addition to making people feel cold, it can easily cause the compressor to start and stop frequently, shortening the service life of the air conditioner. Tip 7: Clean and inspect the air conditioner regularly. Regularly removing the filter of the indoor unit for cleaning can effectively improve the dust removal effect of the air conditioner and improve the quality of ambient air. Regular cleaning of the heat sink of the outdoor unit can effectively improve its heat transfer coefficient and efficiency, and improve the working efficiency of the air conditioner. Let professionals check the air conditioner regularly, replace aging components in time, and replenish refrigerant. This can prevent aging components from harming the machine and human body, and keep the air conditioner in good working condition. Tip 8: The National Three Guarantees protect the legitimate rights and interests of consumers. Air conditioners are products under the Three Guarantees stipulated by the state. The Three Guarantees for the complete unit are valid for one year, and for the main components (including: compressor, fan motor, and thermostat), the Three Guarantees are valid for three years. . If the air conditioner has a performance failure within 7 days from the date of purchase, consumers can request a full return or exchange. If a performance failure occurs within 15 days, consumers can request depreciation, return or repair. If the air conditioner still cannot be used normally after two repairs within the three-warranty period, consumers can request a return or replacement based on the maintenance records. Things to note when buying an air conditioner: First of all, the decision should be made based on the room size, orientation, floor level, and number of residents. In rooms facing sunlight or with poor ventilation, the power of the machine should be appropriately increased. Generally speaking: 1 air conditioner is suitable for a space of about 12 square meters, 1.5 air conditioners are suitable for a space of about 18 square meters, 2 air conditioners are suitable for a space of about 28 square meters, 2.5 air conditioners are suitable for a space of about 40 square meters, 3 air conditioners are suitable for a space of 50 square meters. A 5-hp air conditioner in a space of about 70 square meters is suitable for a space of about 70 square meters. 1. How to determine the cooling capacity. Many people are concerned about how to choose the cooling capacity of the air conditioner when purchasing an air conditioner. However, for 1 HP, 1.5 HP, and large Names such as 1 horse, 1.5 large horses, etc. are in the clouds, and I don’t know how to decide. In fact, it is very vague to use the concept of horsepower to describe the output cooling capacity of an air conditioner. "horse" originally refers to the output power of the compressor motor. The output power of 1 air conditioner compressor motor is 735W. As far as the current market is concerned, a 1-horsepower unit actually refers to an air conditioner with a cooling capacity of about 2500W, a 1.5-horsepower unit refers to an air conditioner with a cooling capacity of about 3500W, and a 2-horsepower unit refers to an air conditioner with a cooling capacity of about 5000W. air conditioner. Note that the 2500W, 3500W, and 5000W here are not the output power of the air conditioner, but the output cooling capacity.

The efficiency of DC inverter compressors is 10 to 30 times higher than that of AC inverter compressors, and the noise can also be reduced by 5 to 10 decibels. In comparison, it can truly save electricity. Consumer reminder: The price of DC inverter air conditioners is relatively much higher, and compared with fixed frequency air conditioners, AC inverter air conditioners still achieve the characteristics of "fast cooling and heating, constant temperature", so consumers can choose according to their own needs. . Myth 4: Hypermarkets are the cheapest. Promotional quotes: Of course you have to go to chain hypermarkets to buy air conditioners. We guarantee the lowest prices in the city. At present, home appliance chain stores are becoming a strong sales channel for home appliances, and at the same time they often claim that their products are the “cheapest.” Price is a merchant’s biggest trump card and the ultimate expression of its profit, so it often takes the most brains and is ever-changing and elusive. It is often impossible for impatient consumers to "shopping around". At this time, you can check the model prices of various brands of air conditioners online, so that it is not easy for merchants to take advantage of price loopholes. Consumer reminder: In fact, large chain home appliance stores have increasingly turned to winning by reputation and service. Due to rising operating costs, it is impossible to give consumers a lot of price space. Many small air-conditioning shops on the street are actually a good choice. Most of these small shops are specialty stores of a certain brand. Their costs are lower and consumers have greater bargaining space. Savvy consumers may wish to give them a try. On-site experience is indispensable. Many manufacturers have prototype demonstrations at the purchase site, which allows you to reconfirm product quality through observation of the prototype. For businesses that do not provide on-site demonstrations, consumers should boldly request on-site experience. 1. Observe whether the shell is intact and smooth. 2. Whether the evaporator condensation fins are arranged neatly, whether they are loose, and whether they are inverted. 3. When purchasing a one-to-two air conditioner, be sure to confirm how many compressors it has. A one-to-two air conditioner should only have one compressor. If there are three compressors, the power consumption and sound will be much higher. 4. When starting the machine, pay attention to whether the indoor and outdoor machines are operating normally and whether there are any abnormal noises or friction sounds from the machine parts. 5. Convert the operating state and test again. 6. Touch the body lightly with your hand to feel if there is any abnormality. 7. When purchasing imported products, you must identify the origin, manufacturer and various import procedures. 8. Be sure to identify the product, trademark, factory name and address. User rights must be clear, and after-sales services must be improved in accordance with the "Consumer Rights Protection Law. Consumers have the right to receive due services and commitments, such as: within 7 days from the date of sale of the product, if a performance failure occurs, consumers can choose Return, exchange or repair; if a product has performance failure within 15 days from the date of sale, consumers can choose to exchange or repair the product. Generally included services are: l. Pre-sales consultation: Provide the information you need, in detail. Understand your needs, recommend suitable products, and answer all questions, including door-to-door design and installation solutions. 2. Free door-to-door after-sales service (free of charge in the city) 4. Free installation in the city. For half a year, the compressor is guaranteed for three years (many companies now promise to exceed this requirement: three years for the entire machine and five years for the compressor). 5. Round-the-clock service is in place. 6. Regular return visits. Air conditioning maintenance and repair. 7. Professional maintenance team and convenient maintenance points.