1, whether to use a famous brand compressor, the heart of compressor air conditioning, a good heart is of course important. 2. Whether to use high-quality and efficient heat exchangers, such as hydrophilic film trapezoidal aluminum sheets and internally threaded copper tubes.
3. Whether to use a large wind wheel with unequal cross-flow blades and a stepping TV to drive the wind pendulum to achieve ultra-quiet design. 4, whether super cooling (heating), quickly reach the set temperature.
5. Whether the appearance of the product is beautiful and harmonious with the home environment.
6. Refrigeration (heat) quantity of the product, and choose the appropriate refrigeration (heat) quantity according to the area of the room.
7. Does this product save electricity? Generally speaking, the higher the cooling capacity (heat), the more energy-saving the products with lower input power. 8, the length of life. Whether to use microcomputer fuzzy control to realize non-stop operation and whether to defrost automatically. 9. Look at the noise index of the product.
10, whether it has low voltage automatic compensation function and wide voltage working range.
In addition, when buying an air conditioner, you must see that the fins of the evaporator and condenser are arranged neatly, the fins are not damaged, and the fins are closely connected with the copper tube without looseness. Check the operation of the air conditioner, start the air conditioner, and check whether there is abnormal noise in the operation of the compressor; The fan operates normally, with obvious difference between high, medium and low speed and low noise; There is also a flat appearance, beautiful appearance and good quality of plated parts. Four principles of air conditioning purchase:
Look at the brand first. There are many air-conditioning brands on the market now, both at home and abroad, and most of them have their own unique advertisements, so it is difficult for consumers to choose. It is suggested that when purchasing air conditioners, choose products with strong enterprise strength, high brand awareness and perfect after-sales service. This is based on two considerations. The first is to ensure the implementation of after-sales service, because air conditioning is a household appliance and after-sales service is very important. According to the relevant national regulations, the compressor should be guaranteed for 3 years, and the competition in the home appliance market is almost fierce. Some manufacturers often have a short life cycle, and some collapse in three to five years. When an enterprise goes bankrupt, its promise will naturally be difficult to realize. Greedy and cheap, buy products with weak enterprise strength and low brand awareness, and there will be endless troubles. Secondly, consider the quality, because the quality of air conditioners with strong enterprise strength and high brand awareness is relatively stable. Such enterprises not only have strong technical strength, but also pay special attention to quality, so the quality of such products is guaranteed.
The second is to choose a good business. After consumers choose the brand of air conditioner, they have to decide where to buy it. When buying an air conditioner, it is particularly important to choose a merchant. Because strictly speaking, the air conditioner is a semi-finished product, which can be used not after being bought from the store, but after being installed and debugged by a professional team. If the installation and debugging are not good, it will bring a series of problems, such as poor ventilation, water leakage of pipe joints, human failure during debugging and so on. These will not only affect the use effect, but also add a lot of trouble. At the same time, many after-sales service measures of manufacturers also need to be implemented and implemented by merchants. Therefore, it is very important to choose a good merchant. As for the choice of merchants, people in the industry suggest that those big merchants with strong local strength and influence should be chosen first, because these merchants have many kinds of business and sales, and generally have professional installation and debugging teams, with guaranteed installation and debugging quality and perfect after-sales service. Secondly, choose those businesses that sell air conditioners for a long time, and try not to buy them from short-term dealers, because such dealers' after-sales service will be greatly discounted.
Third, measuring the house to buy air conditioning is a high-consumption household appliance. If the selected power is too small, it will not work; Too much power is wasted. Therefore, when consumers choose the power of air conditioning, they should measure the room to buy. First, don't be greedy. Some consumers like to buy large air conditioners, which is not desirable, because except for some special factors, household air conditioners have their scope of use. Consumers should choose the type of air conditioner according to the area of their room when purchasing. In general, the required cooling capacity and heating capacity of a room can be calculated according to the following formula. Cold storage area × 140W to180w; Heating room area × 180W to 240W. In addition, it should be increased or decreased according to the orientation, height and sealing degree of the room. The second is to choose according to the design of the room flexibly. Don't buy a large air conditioner in the living room to save the room like some families do. This will not only make it difficult to keep the room, but also cause waste. The reasonable way is to buy some low-power air conditioners according to the room type and manage each room. In this way, on the surface, the initial investment is more, but in the long run, it is still cost-effective. For example, buy a set of 1 10 square meters of three rooms and two living rooms in the living room, which can protect both the living room and the dining room, and the bedroom can also be divided into 1 small air conditioning. This is more reasonable than buying a big air conditioner for three horses to put in the living room.
Fourth, now is a smart time to buy an air conditioner. Unlike most other household appliances, its price fluctuates with the change of temperature. It is understood that from 10 of the previous year to the end of March of the following year, it is the off-season; April-September is the peak season, and the price difference between peak season and off season is about 7%- 10%. An air conditioner can be hundreds or even thousands of dollars cheaper. In the peak season, June, July and August are also prosperous. Generally speaking, some manufacturers will adjust their prices according to the sales situation at that time. Therefore, when buying air conditioners, you can save a lot of money if you grasp the opportunity. What should I pay attention to when using household air conditioner?
1, the power supply voltage should not fluctuate too much (10% fluctuation is allowed), the air conditioner should be powered by a dedicated line, and the single-phase three hole socket should be used, and the plug should be plugged to the end.
2. The casing of the indoor unit should be cleaned frequently, and generally it can be wiped clean with a clean dry cloth or neutral detergent, and it is absolutely not allowed to be washed directly with water. If it is wiped with a cloth, it should be done after the power failure. 3. The indoor temperature should not be adjusted too low, otherwise it will be bad for the human body, so the set temperature should be adjusted appropriately. 4. If you feel that the indoor temperature is too high, you can lower the set temperature appropriately. 5. The effective use of timer can achieve both energy-saving and comfortable effects.
6, air conditioning room personnel should not be too much, too crowded, otherwise the cooling capacity is insufficient, the temperature is difficult to drop; 7. Don't switch the doors and windows of the room frequently, and people don't go in and out frequently to avoid the loss of air conditioning;
8. The glass window must be closed tightly and tightly, and double white curtains should be hung inside to reflect the partially penetrated light and heat; 9. The window can be opened briefly during indoor ventilation, and the window opening time generally does not exceed 10 minute;
10, the air filter should be cleaned regularly, otherwise the airflow is blocked, resulting in insufficient air volume and rising room temperature; 1 1, the temperature should be adjusted during sleep, and the air conditioner can automatically adjust the sleep temperature;
12. The outdoor unit should be firmly installed to reduce vibration and noise, and sufficient space should be left in front of the suction and exhaust ports of the condenser to facilitate ventilation. If the wind is blocked, the condensation pressure will rise, leading to shutdown; 13, there should be no obstacles in front of the indoor unit, otherwise the wind will be affected; 14, when the air conditioner is just turned on, you can adjust the selector switch to high speed, and then adjust it to medium speed and low speed after the temperature drops;
15, the ventilation switch can be used for window air conditioning ventilation, but the ventilation time does not exceed 15 minutes;
16, too much dust in the outdoor radiator of air conditioner will reduce the efficiency, so the outdoor radiator should be checked and cleaned regularly (it can be blown clean with compressed air after power failure);
17, wooden sticks are not allowed to be inserted into the outdoor unit of split air conditioner, otherwise the fan will be stuck or damaged;
18, when you feel that the air conditioner is not ideal, you should consult the instruction manual, analyze whether it is caused by improper use, and correct it after finding out the reason;
19, if the fault cannot be handled by itself, you can find a professional maintenance mechanic in the original installation department to solve it, or contact the local service personnel of the brand company, and you can't repair it by yourself or find a non-professional to repair it; 20. Unplug the power plug when the air conditioner is not in use;
2 1, the air conditioner must be restarted after stopping for three minutes to protect the compressor; 22. Air conditioner with remote control (don't put it where children can easily get it) Don't let children operate as toys to avoid damaging the machine.
A new type of air conditioner that can continuously adjust the frequency or speed of the compressor within a certain range, that is, change the flow rate of refrigerant, give full play to its best matching ability with the environmental state, and automatically adjust the output. Frequency conversion air conditioner adopts digital signal processing, analog control and artificial intelligence control. Compared with ordinary air conditioners, inverter air conditioners have the advantages of rapid cooling and heating, high efficiency and energy saving, comfort and reliability, intelligent defrosting, large dehumidification capacity, ultra-quiet operation and wide voltage operation.
The basic methods to judge the common faults of household air conditioners are: seeing, listening, touching, measuring and analyzing.
1, look: carefully observe the working conditions of various components of the air conditioner, focusing on the refrigeration system, electrical system and air system to determine whether they are working normally.
(1) Refrigeration system: Observe whether there are cracks, damages, frosting and dew condensation in each pipeline of the refrigeration system; Whether there is any collision or friction between the refrigeration pipeline, pipeline and shell, especially whether there is any leakage at the welding parts and joints of the refrigerant pipeline, and whether there is oil pollution (there is a certain amount of refrigeration oil in the refrigeration system), you can also wipe the welding parts and joints of the pipeline with clean soft cloth and soft paper to observe whether there is oil pollution to judge whether there is leakage.
(2) Electrical system: Observe whether the fuse of the electrical system is blown, whether the insulation of the electrical leads is intact, whether the circuit board is damaged, whether the connectors are loose, etc. In particular, whether the electrical connection is in good contact, the wiring screws and connectors are easy to loosen, leading to poor contact.
(3) Ventilation system: Observe whether there is too much dust on the air filter, heat exchanger coil and fins; Whether the air inlet and air outlet are unblocked; Whether the fan and blades are operating normally; Whether the wind is normal, etc.
2. Listen: Listen carefully to whether the compressor of the air conditioner is running normally, whether there is abnormal sound, whether there is noise when the fan is running, whether the noise is too large, etc. Under normal circumstances, the air conditioner has slight vibration and low noise, generally below 50DB. If the vibration and noise are excessive, the possible reasons are:
(1) is improperly installed. If the bracket size is inconsistent with the unit, it is not firmly fixed or there is no damping rubber or foam plastic pad, which will aggravate the vibration and noise of the air conditioner during operation. Especially at the beginning and stop.
(2) Abnormal vibration of compressor. Poor installation of base, uneven feet, poor installation of shock-proof rubber or spring or poor shock-proof effect, etc. If there is a fault inside the compressor, such as valve plate rupture, liquid hammer, etc. , but also make abnormal sounds. (3) Fan collision. Improper installation or deformation of fan blades will produce collision sound. The fan may collide with the wall shell and chassis, the axis of the fan will move, and the blades will make a collision sound when they are out of balance; If there is a foreign body in the fan, the blades will also collide with it.
3. Touch: Touch the relevant parts of the air conditioner with your hands to feel its heat, cold and vibration. , which is helpful to judge the nature and location of the fault. In general, the temperature of the condenser gradually decreases from top to bottom, and the temperature in the lower part is slightly higher than the ambient temperature. If the whole condenser is not hot or the upper part is slightly warm, or although it is hot, the temperatures of two adjacent tubes are obviously different, it is abnormal. Evaporator Under normal circumstances, if you immerse your fingers in the water on the surface of the evaporator, you will feel cold and sticky. In general, the capillary at the dryer and outlet should feel warm (slightly higher than the ambient temperature, and basically the same as the pipeline temperature at the end of the condenser). If the temperature is lower than the ambient temperature, the temperature difference between the condensation on the surface and the capillary section is abnormal. Under normal circumstances, the temperature of the suction pipe 200MM away from the compressor should be close to the ambient temperature.
4. Measurement: In order to accurately judge the nature and location of faults, instruments and meters are often used to check and measure the performance parameters and status of air conditioners. If a leak detector is used to check whether there is refrigerant leakage; Use a multimeter to measure whether the power supply voltage, grounding current of each terminal and working current meet the requirements, and the computer-controlled air conditioner should also measure whether the potential of each control point is normal. 5. Analysis: Most of the results obtained by the above inspection methods can only reflect a certain local state. All parts of air conditioning are interrelated and influence each other. A fault phenomenon may have many reasons, and a reason may also produce many faults. Therefore, the local factors should be comprehensively compared and analyzed, so as to comprehensively and accurately determine the nature and location of the fault.
Question 1: Rooms at home vary in size. What should be used to determine the appropriate air conditioner? First of all, consider the specific situation of the room. In a typical family, the cooling load per unit area is from 140W to 170W, while the heating load is from 200W to 230W per square meter. The cooling (heating) capacity represented by 1 air conditioner is 735W, and the number of air conditioners can be selected according to this standard.
At the same time, different rooms can be matched according to the type of air conditioner: window air conditioner is more suitable for small-area rooms, such as small bedrooms; Split wall-mounted air conditioner is suitable for rooms with an area less than 15 square meters, such as master bedroom or study; Cabinet air conditioners and ceiling air conditioners are suitable for larger rooms, such as living rooms.
Question 2: Are there any other standards besides air conditioning according to the room size? The main function of air conditioner is cooling and heating, but the greater the cooling or heating capacity, the better. This indicator should be adapted to the size of the room. Excessive cooling or heating will make the air conditioner turn on and off frequently, which will increase the fatigue of the air conditioning control system and compressor, shorten the service life and increase the failure probability, which is not conducive to the use safety requirements; Similarly, too small cooling capacity will make the air conditioner run continuously for a long time, shorten the service life and increase power consumption. Question 3: Where is the best installation location of air conditioner?
Traditionally, people are always willing to install air conditioners near the roof. In fact, it is best to install the air conditioner at a height of about 1.7 meters from the ground, so that its cooling or heating effect is the best. Generally, the air inlet of air conditioner is in the upper part and the air outlet is in the lower part. If the air conditioner is installed too high, the cold air after heat exchange will be sucked back by the air conditioner before sinking to the lower part of the room, so that the hot air in the lower part of the room can not be exchanged well, and the temperature in the lower part of the room is always high, so the average indoor cooling effect is naturally poor. 19 June 2008 07:55:00 Source: Beijing Morning Post Air Conditioning Maintenance Specification I. Customer Reservation:
1, make an appointment to come to your home and provide you with high-quality air conditioning maintenance service at your convenience; Step 2 dress neatly
Second, on-site service etiquette
1, after entering the door, gently ring the doorbell. If there is no doorbell, gently knock on the door rhythmically. It is forbidden to slap the door hard and kick the door with your feet. 2. After the user opens the door, introduce himself. "Hello, we are air-conditioning service personnel in Xihu District. Is this Mr./Ms. * *? We are now an air-conditioning service and take the initiative to show our certificates. You can enter the door only after the user agrees. Be sure to wear a shoe cover before entering the door.
4, language exchange, after entering the door, ask the user the installation location or use method of the air conditioner. 4. 1, carefully check the invoice before installation, whether it is consistent with the model and whether the materials are complete;
4.2. Design the installation location, learn more from the users and communicate with them. Solicit users' opinions and determine the reasonable installation position and piping direction (installation);
4.3, listen carefully to the user's fault phenomenon (maintenance);
5. After the communication, spread out the mat cloth, and put the tools on the mat cloth one by one, paying attention to handling the tools. 6. Introduce the installation card to the user in detail.
7, installation and maintenance must pay attention to the indoor environment, decorate the workplace. When furniture needs to be moved, it should be negotiated with the user and moved with the consent of the user.
8. Keep your hands clean to avoid unnecessary contact with the user's household items. 9, safe installation operation:
9. 1, in strict accordance with the operating procedures of air conditioning installation and maintenance; 9.2. Check whether the indoor unit and outdoor unit are installed firmly;
9.3, card maintenance, carefully check the reason, find the fault, to avoid recklessness;
9.4. Explain the faults and problems in maintenance and make reasonable explanations to users. If you are not clear, please contact our company. 10, aerial work:
10. 1. Seat belts and safety ropes must be used in the installation and maintenance of air conditioners, and safety supplies should be checked in time. 10.2. You must pay attention to the people and things below, and be careful not to slide the tools;
10.3. When installing and repairing the outdoor unit, two people must be present at the same time, and users can also assist in handling; 10.4, after the operation, should clean up the job site.
1 1. debug the air conditioner, teach users to use the air conditioner, and introduce the performance, precautions and common maintenance of the air conditioner to users; 12. Ask users if they have other service needs and opinions; 13, say goodbye to users politely;
Headquarters address: No.227 Airport Road, Jianggan District, Hangzhou, Zhejiang Province. Air conditioning warranty:
1. The removed (removed) air conditioner is guaranteed for one year. 2, air conditioning maintenance warranty for one year.
3. The air conditioning conditions that each unit needs to maintain all the year round shall be discussed separately.
Fourth, air conditioning after-sales service is a very special job, because it contains many aspects: 1, for the satisfaction of users: you must smile and speak easily. 2. For the quality of air conditioning: standards need to be installed and then passed the inspection. 3. In order to reduce the maintenance of air conditioners, it is necessary to check everywhere, and every item should be checked for leaks. 4. For the safety of the constructors themselves: everyone should be trained and take risks. Five. Development of air conditioning
There are two main types of household air conditioning systems in the world: American modular split machine and Asian split machine. In the United States, most single separators are duct systems. If the market is divided according to the compressor capacity, in 2000, the compressor sales of 1.5HP-6HP accounted for almost 76% of the total compressor sales, while those above 7HP only accounted for 24%. Commercial air conditioning systems are divided into small and medium-sized commercial systems and large commercial systems, among which small and medium-sized systems are mainly direct evaporation systems, which are used in restaurants, small office buildings and shopping malls, and large-sized systems are mainly water chillers, which are mainly used in hotels, schools, hospitals or other industrial systems.
From the global market, the development of air-conditioning products is showing three major trends. First, we should constantly improve the energy efficiency ratio of products; Second, new refrigerants R4 10A, R407C and R134A are widely used; Third, capacity adjustment technology is gaining market in Asia and Europe. Large-scale commercial air conditioning system is replaced by several small systems, which mainly realizes the distribution of refrigeration/heating capacity on demand, and compressor technologies such as scroll, screw and rotor are dominant. In addition, the capacity requirements for the electric control system, remote control system and self-diagnosis system of the unit are also constantly improving. The energy efficiency ratio needs to be improved.
Paying attention to the energy efficiency level of air conditioning is of great significance to a country's energy-saving work. Because of this, the world air-conditioning market demands higher and higher energy efficiency, especially in the United States, Japan and South Korea.
From the application point of view, the air-conditioning market in the United States is mainly concentrated in four parts: new buildings, replacement and increase, commercial machines and exports. From 1995 to 2000, the average growth rate of American air-conditioning market was 7.8%. According to the forecast, from 2000 to 2005, this figure will be 4.5%. The upgrading and addition of air conditioners is the main growth point of the American market. From 2000 to 2005, the growth rate of this part can reach 4.4%, the growth rate of air-conditioning consumption brought by new buildings can reach 2.4%, the growth rate of commercial machines is 7.4%, and the export growth rate is 13. 1%.
The American market has always been very strict about energy conservation. Since 192, the United States raised the minimum seasonal energy efficiency ratio of air-conditioning products from 8 to 10, the market share of high seasonal energy efficiency ratio products has expanded year by year. By 1999, 10 products have occupied nearly 80% of the market, while the remaining 20% of the market is occupied by 12 products. It is understood that the American market still plans to put forward higher requirements for seasonal energy efficiency ratio. According to the new standard that has been formulated and will be implemented in 2006, the minimum seasonal energy efficiency ratio is 12(3.52W/W). Figure 3 is the market share forecast of air-conditioning products with different energy efficiency grades in the United States from 1999 to 2006. It can be seen that the energy-saving grade will be a big threshold for air-conditioning products to enter the American market in the future.
What needs to be further explained here is that the calculation method of seasonal energy efficiency ratio adopted in the United States is different from that adopted in China at present, and the main difference is that the measured ambient temperature is different (for the constant speed machine). Through the test of the actual air conditioning unit operation state, we can know that there is a great difference between the cooling and heating operation of an air conditioner throughout the year. First of all, indoors, the cooling load will change with the room heat load, for example
People flow, door opening times, outdoor temperature, etc. For multi-connected systems, if several indoor units are partially running, it means the change of cooling (heating) load. Secondly, on the outdoor side, with the change of ambient temperature, the condensation temperature of air conditioner often changes. From this point of view, it is obviously unreasonable to take the ambient temperature of 35℃ as the working point of the energy efficiency ratio test. If the time integral is used to measure the accumulation of ambient temperature when the compressor is running, it can be found that most of the running time of the air conditioner deviates from the standard operating point of 35℃. In the cooling season, less than 5% of the time, the outdoor environment temperature is higher than 35℃, and 75% of the time is lower than 28℃. At the same time, the traditional energy efficiency ratio test method does not consider the system loss caused by compressor start-stop Therefore, the testing method of seasonal energy efficiency ratio based on the annual cooling (heating) situation is produced (see table 1 for specific corresponding values).
Suppose there are 6.5438+0.6 million new air conditioners in China every year, with an average input power of 654.38+0.575 W (654.38+0.5 HP) and an average annual operation time of 400 hours. If the minimum energy efficiency ratio of each air conditioner is increased from 2.45W/W to 2.75W/W compared with the current energy efficiency ratio in the United States, China can save electricity/. All countries use standards, labels and other management means to promote new refrigerant air-conditioning products to expand their share in the domestic market.
The American market is turning to refrigerant R4 10A. This trend means that after the implementation of the new air conditioning standard in 2006, the air conditioners using R4 10A will occupy about 80% of the market, and the air conditioners using R22 will exit the American market 20 10 years ago.
Split-type, cabinet-type, 5-50KW room air conditioners in European markets are also replacing refrigerants, and there are several alternative products using R4 10A, R407C, R 134a+R404A mixed refrigerants. After 2004, all air conditioners using R22 will also be withdrawn from the market.
Due to the requirement of new energy efficiency ratio in Japanese market, almost all air conditioner manufacturers are actively developing new refrigerant products, among which R4 10A is the main choice in this market. Variable capacity air conditioning system
In recent years, the market share of variable capacity air conditioning system has gradually expanded, which is mainly affected by four factors. First of all, in order to save energy, the variable capacity system can achieve a higher seasonal energy efficiency ratio; Second, comfort is a must. When the ambient temperature is too low or too high, the ordinary constant-speed air conditioner can't meet the corresponding requirements of heating load and cooling load, while the variable-capacity system can realize accurate control of indoor temperature and humidity. Third, it is easy to use, and the multi-online system can meet the needs of some areas, especially in the office; Fourth, the profits are rich, which is of special significance in the China market where the homogenization trend is becoming more and more serious. This kind of products can open the distance between manufacturers and competitors in the technical level of product categories, and avoid rushing headlong into it only in one aspect of "price".
The increasing demand for variable capacity systems in the global air-conditioning market has made Japanese frequency conversion systems popular in many Asian countries. In Japan's domestic air-conditioning market, the market share of variable capacity air-conditioning systems (inverters) increased from 72% in 1997 to 96% in 2002, and the proportion of inverters in Japan's commercial air-conditioning market also increased from 5% in 1997 to 35% in 2002, but at the same time, Japan is also facing pressure and challenges from other countries. At present, most manufacturers have introduced household split products and actively expanded their application in the commercial field. The development focus of this product is 1HP-2HP horsepower and 6HP- 10HP horsepower products. Most manufacturers rely on Japanese frequency conversion technology, and they hope to reduce costs by increasing technical input. However, at present, the development goals of variable capacity systems are different, and there are also differences in cost, target market and enterprise strategy. Many simplified systems have been developed.
1. Variable capacity compressor (variable frequency/digital scroll) and electronic expansion valve constitute the system refrigerant. This kind of products can realize a wide range of linear flow adjustment to adapt to the changes of the overall load.
2. Variable capacity compression and capillary tube make the refrigerant flow adjustable in some fields.
3. Multi-compressor (constant speed)/multi-loop system, forming stepped capacity adjustment in the whole refrigeration load. 4. Single compression multi-level capacity control type, forming a stepped adjustment range.
When developing variable capacity air conditioning system, there are two problems that enterprises need to consider clearly. One is to develop such products for enterprises.
The industry has high development ability, needs a lot of matching tests, and grasps many unpredictable operating points and complexities of the system in the actual operating environment. In this regard, Julun's engineering centers and technical support teams in Hong Kong and Suzhou will play an active role. Second, the contractor for installation and maintenance of multi-connected systems has higher requirements, which is different from the simple installation of household air conditioners at present. It requires a lot of professional training, and it is necessary to establish long-term and reliable business contacts with equipment installers and operators. Harm caused by air conditioning
Frequent use of air conditioning will lead to air conditioning disease, and the symptoms are mostly fatigue, cough, fever and so on. Due to frequent use, it also puts a lot of pressure on electricity. Tips for saving electricity in air conditioning
First, don't covet the low temperature of air conditioner, just set the temperature appropriately. Because the air conditioner can save 20% electricity when the set temperature is 2℃ higher. For people who sit still or do light work, the acceptable indoor temperature is generally between 27℃ and 28℃.
Second, the filter screen should be cleaned frequently. Too much dust will block the filter screen and make the air conditioner get twice the result with half the effort.
Third, improve the maintenance structure of the room. For some rooms with poor door and window structures and large gaps, some emergency improvements can be made; For example, use adhesive tape to seal the window joints, stick transparent plastic film outside the glass window, use sunshade curtains, stick wooden boards or plastic boards on the indoor walls, and paint the walls with white paint to reduce the loss of cold air caused by the external walls.
Fourth, choose an air conditioner with moderate cooling power. The air conditioner with insufficient cooling power can not only provide sufficient cooling effect, but also shorten the service life of the air conditioner and increase the possibility of failure of the air conditioner due to long-term continuous operation. In addition, if the refrigeration power of the air conditioner is too large and the thermostat of the air conditioner is turned on and off too frequently, the compressor wear of the air conditioner will increase; At the same time, it will also increase the electricity consumption of air conditioners.
5. When the air conditioner cools, the position of the air deflector is adjusted to the horizontal direction, and the cooling effect will be better.
6. The air conditioning pipeline connecting the indoor unit and the outdoor unit is short, not bent, with good refrigeration effect and no power consumption. Even if you have to bend, keep the piping in a horizontal position (for more questions about the purchase of air conditioners, please go to WeChat official account "Enjoy Home Appliances").