For what would your air conditioner worked for him for their full term, on average, from 7 to 12 years depending on the class of air-conditioner, you need not so much ... In periodicals regularly publish articles telling about how to choose the right conditioner. Thanks to them, the readers an opportunity to objectively evaluate the merits and demerits of different models and make a purchase, which will not have to regret. In most cases, buying and installing an air conditioner, it started to use the same way as any other household appliances - TV, iron or vacuum cleaner, acting on the principle: let him work until the break. On the same TV or vacuum cleaner, this principle justifies itself - until the first failure may take more than one year (qualitative technique may well work out without repairs 5:7 years). However, for the most common type of air conditioner - split systems - such exploitation is likely to lead to serious damage in 2 .. 3 years. This feature is inherent in a low-cost models - LG, SAMSUNG, and the elite - DIKIN, FUJITSU. The difference between them is that the more expensive models tend to have more degrees of protection against improper use, and such air conditioners simply "refuse to" turn on, even with a slight deviation from normal operation. To understand why such a "capricious" split-systems are considered in general terms, their internal structure. Any split-system consists of two units - the outer, which contains the compressor, fan and radiator (called a condenser) and internal, which are the same fan and heatsink (called the evaporator). When installing these units are connected with copper pipelines that pressure about 15 atmospheres circulating mixture of freon R-22 and a small amount of compressor oil. Fans located in internal and external units provide air cooling radiator to improve heat transfer and uniform distribution of cold air in the room. So, what is the most common causes of failure of conditioner? Contamination of the indoor unit filters These filters are a regular fine grid and located under the front panel through which air is sucked. They are designed to arrest the dust in the air and protect her from not only the inhabitants of the room where the air conditioner installed, but the radiator of the indoor unit. In fact, the air conditioner works like a vacuum cleaner, and filters play the role of dust. To clean the filter enough to wash them in warm water and a few minutes to dry. Remove and install filters - no harder than replacing the dust bag in the vacuum cleaner (except code indoor unit is located at high altitude). In the instruction manual is always a detailed account of how to do it. Wash the filters, as a rule, it is necessary once every two - three weeks. If the air contains a large amount of dust or smoke, they should be washed frequently, making sure that they always stay clean. If the filters for a long time does not wash, it is primarily reduced airflow cooler indoor unit, as a consequence, the indoor air is worse than cool. In addition, disrupted operation of the refrigeration system, which can lead to copper piping frosting. In this case, when you turn off the air conditioner ice begins to melt, and from the air conditioner is dripping water. Later, when heavily contaminated filters, possibly clogging the drainage system clumps of dust and then pour the water from the air conditioner stream. In very severe cases on the plates of the radiator mounting a layer of dirt that it can be removed only with the help of strong chemical cleaners. Note that cleaning the filters is not included in the standard warranty and must be performed by the customer (as well as replacement of the vacuum cleaner bags) in accordance with the instruction manual. Leaking Freon second most common cause of failure of conditioner is leaking freon. Leaks are of two types - normalized (to 6 .. 8% per year) and due to faulty installation. Normalized leakage occurs at any place, even in a quality installation - this is the inevitable consequence of interblock connections by expanding the pipeline. To compensate for air conditioning should be refilled with freon 1,5:2 every year. When Faulty installation freon leak almost entirely in a short time (from several days to several months). For a man is not dangerous, since freon - an inert, non-poisonous and odorless gas, but the air conditioner it can have very grave consequences. Firstly, the compressor is cooled by Freon at work and with his lack of possible overheating of the compressor. Secondly, together with freon from the system follows the butter, and the compressor can jam. And the cost of replacing the compressor is about half the cost of a new air conditioner. To detect the fact of leaks do not necessarily have special equipment. The first signs of reducing the number of refrigerant in the system - the formation of frost or ice on the Pipe fittings of the outdoor unit (this is the place to be connected copper pipes), as well as insufficient cooling air in the room (the temperature difference between inlet and outlet of the indoor unit should be approximately 10 ° C ). In the event of such symptoms, you must turn off air conditioning, and contact the service center to fix the problem. Work the conditioner in the winter Another feature of household air-conditioners - almost all models sold in Moscow, not adapted to work in the winter time, then have a working temperature range of outdoor unit, generally ranges from -7 ° C to +43 ° C. The exception is the whole range of DeLonghi and some models from other manufacturers (this is best to ask the seller when buying a particular model). The reason for this seemingly strange behavior of companies - manufacturers is that, firstly, in Russia are imported the same air-conditioners, which are supplied to European and Japanese markets, where the winter is warm enough (the absolute minimum temperature in Tokyo -8 ° C / journal "Climate World", № 3, 1999 /), and secondly, the installation of air conditioning unit all season, which allows the air conditioner to work with an outside temperature of -25 ° C, increases its cost by 160 .. $ 200 , which reduces its competitiveness. The need for air conditioning running all year round may occur in two cases. Firstly, when you need to cool the room, not only in summer but in winter such as a room with lots of heat-generating equipment (servers, computer rooms, etc.) because cooling of the room by ventilation will lead to an unacceptable reduction humidity. Secondly, in the case of heating with the air conditioner in the winter. However, this use of air conditioning is not always justified, since even being adapted to winter conditions, when the outdoor temperature is -20 ° C, the performance (power) of the air conditioner falls three times as compared to nominal. Operation unadapted conditioner in the winter in the first place reduces the endurance of the compressor, eventually it can clog. In addition, when you turn the air conditioner in cooling mode condensate (water) formed in the inner block will not be able to flow out due to ice jams in the drain hose. As a result, after half an hour after turning on the water from the indoor unit will begin to pour into the room. Note that adapt to winter conditions of any possible split-system. For this purpose, it integrates the unit and the compressor crankcase heater control fan speed outdoor unit, as well as establish a "warm" drainage. All of the above applies primarily to the split system, but it is also true for window air conditioners. The main difference - in the absence of window air conditioners normalized leakage of refrigerant. Therefore, periodic refueling for them is not required. To summarize. For what would be your air conditioner worked all his life laid, on average, from 7 to 12 years depending on the class of air-conditioner, you need not so much: clean filters the indoor unit at least once a month, if the air conditioner stopped functioning normally (from the indoor unit is dripping water on copper pipes narosla ice "coat" deteriorated cooling air in the room, there were crackling and other extraneous sounds) need to turn off air conditioning and seek help for service, at least once every two years (preferably once a year in spring - before the start of the season) to call service representative to check the pressure in the system and refilling freon, air conditioner full diagnostics in all operating modes (to detect hidden failures), clean indoor and outdoor units. Outdoor unit with the blown with compressed air for cleaning from poplar fluff and dust does not include air conditioning, if it is not equipped with multi-grade unit, with the outdoor temperature is below -7 .. -8 ° C.
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