From the choice of conditioning depends on whether you will be comfortable in their own home or you'll earn yourself an extra headache. It is worth noting that the common opinion that if the air conditioner makes the air fresher - not true. The device takes air from the room, cools it and returns back without cashing in the street, that is, the percentage of carbon dioxide is not reduced and oxygen is not added. The influx of outdoor air can provide only some of the models, but it is more the exception than the rule. In addition, when air-conditioning room air dried, and the resulting condensate is to be removed through the drainage tube into the streets or in sewers. The first thing to keep in mind that to determine exactly which model is suitable for a particular room, can only be a specialist. You can, of course, to begin to look into the store to get oriented on price. True note: the prices in the price list should be added 10-12% of component (mount external unit, decorative boxes, copper pipe, drain pipes, cables) and 20-25% of the assembly. The figure is not the highest - for example, in Europe and Japan, installation costs are often 50-70% of the cost of equipment. The next step would be to visit a specialist who not only clarify the dimensions of the room, its orientation to the cardinal points (this is important) and the size of the windows, but also detects where and how many are computer, refrigerator, fax machine, microwave oven and other appliances. All this is necessary in order to know what the cooling power you need. Cooling capacity is the main characteristic of the air conditioner. For household appliances, it is from 1,5-2,0 to 6,5-8,5 kW. Through 1 m2 of glazing on average received 0.45 kW of heat, a person allocates about 0,15 kW, and office equipment - roughly 30% of power consumption (PC - 0.3 kW, laser printer - 0,4 kW / copier - 0,5 kW). Accordingly, selected air conditioning, cooling capacity which exceeds the total value of all teplopostupleny. For approximate calculations we can assume that 1 kW of power in the cold required for 10 m2 of floor space. If you plan to do the repair, the device is desirable to set up for finishing work - then all communication between the blocks can be hidden in the wall. Yes, and installation of split-redundant system, in this case would cost almost a half times cheaper. Specialist certainly offer you a choice of several models that differ not only in price but also in design and location, and installation conditions. Among the domestic air conditioners are two basic types of devices: one-piece (or windows mobile) and a split system. Now almost all the foreign manufacturers offer window models from 1,5 to 5 kW. The simplest of them work only for cooling, are still more expensive modes of heating and the supply of fresh outdoor air and controlled remotely. The main disadvantages of such devices - increased (compared with split-system) noise and the need for installation in the window opening, the advantages include their low cost. Remember that window air conditioner must not be blocked with thick curtains or blinds, because then it will create favorable conditions in the space between the window and curtains, but not inside the premises. If your house is installed stained glass windows or in frames made of PVC or aluminum, installation of the device will fly a lot of money, besides, he can not run on the hood. Portable air-conditioners outwardly looks like a small bedside table on wheels. They require no special installation, you only need to take a flexible hose (duct) with a diameter of 15 cm and a length of 1-2 meters on the street through the window or hole in the wall for the removal of hot air. The disadvantage of such models - increased noise (that's why before buying necessarily need to test the device, setting the lowest possible temperature and turning the fan on full speed) and the high price, comparable to the value of a good split-system. Find out in advance the amount of condensate trap for mobile monoblocks. If it is too small, it is necessary every two to three hours to pour water, as during a filling the air conditioner automatically turns off. Split-system consists of indoor and outdoor units connected by an electric cable and copper tubes with refrigerant. With this design the most noisy and cumbersome part of the air conditioner - the compressor - made of the premises. Indoor unit can be placed in almost any convenient location apartment. All modern split systems are equipped with a remote control with LCD display. With it set the temperature to within 1-2 degrees, set the timer to automatically turn on and off the device at a given time is governed by the air flow, etc. The internal components are fine filters and strainer to remove the air of dust, smoke , plant pollen. Another advantage of split systems is a large selection of different types of indoor units: wall, ceiling, cassette, column and canal. The most common and most affordable - wall air conditioner. Power devices ranges from 1,5-2,0 to 6,5-8,5 kW, which corresponds to the floor area of ??12 to 75 m2. Console (or ceiling) air conditioner looks like a wall, but has a smaller thickness - 15-20 cm - and dimensions more like a radiator. Power of these devices reaches 12.5 kW. They are installed either at the bottom of the wall or the ceiling. In the first case the air stream is directed upwards, in the second - along the ceiling that allows you to evenly distribute air around the room and avoid exposure to direct flow of cold air on people. Cassette air conditioner is designed for installation in the construction of the ceiling. The apparent lower part of the block, closed with decorative lattice, has a standard ceiling tiles - 600 x 600 mm, but with considerable power and is twice as much - 1200 x 600 mm. When choosing in favor of this model should take into account that she eats about 25 cm height of the ceiling. Columns, or outdoor air conditioner has a large cooling capacity and is set in spacious rooms - rooms, lobbies, hallways - or where because of the lack of false ceilings can not put a tape or a channel device. Duct air conditioner installed in suspended or boarding the ceiling, completely hides the inner block. According to the ducting the cooled air is distributed to several rooms. Power devices up to 20-25 kW. This is sufficient for conditioning 4-5-room flats. One of the advantages of this type of split systems - provided in some models of possible supply of fresh air. Once again draw your attention to the fact that only some models of cluster and column devices, as well as "okonnikov" can dash outside air, albeit in limited quantities (about 10%). But normal wall air conditioners have to supplement the device ventilation. Devices that can not only cool air, but also heat it while working in heat pump operation, are at $ 100-200 more expensive. In the off season (fall and spring), they help to create a more comfortable room temperature conditions. You can buy and inverter air conditioning with adjustable power cooling / heating. In power supplies such devices converts the ac voltage. This allows you to smoothly change the frequency of rotation of the compressor and thereby regulate power. Compared with normal, inverter air conditioner consumes less power (30-35%) and more accurately maintains the set temperature. Incidentally, the power consumed by data from network appliances, or about 1 / 3 of the power cooling / heating. Moreover, their alleged efficiency is 250-300%, ie 1 kilowatt of electricity consumed has evolved 2,5-3 kW of cold / heat. To avoid confusing the user with the school remembers that the efficiency of more than 100% does not happen, the efficiency of the air conditioner is not to evaluate efficiency, and using the so-called coefficient of performance (EER - cooling and COP - heating), whose value lies in the range 2 -3. High efficiency is achieved because the device pumps the heat out of the room to the street (in the heating mode - on the contrary), but does not produce energy by itself. Therefore, the air conditioner with cooling capacity of 2 kW requires only 650-700 Tues AC power (less than iron or electric) and it can connect to an ordinary wall socket. The correct power on the air conditioner is able to install and constantly maintain a comfortable temperature of indoor air (usually from +18 to +28 ° C up to 2.1 degrees). In this case, the outside air temperature can range from -7 to +43 ° C. Keep in mind that with the approach of the outside air temperature of -7 ° C air-conditioner efficiency decreases and increases the load on the compressor. This is due to the physical properties of refrigerant (freon R-22, R407C, R410a), the peculiarities of the process of its evaporation and condensation at low temperature and does not depend on the type of device and manufacturer. Operation at ambient air temperatures below -10 ° C leads to rapid wear of the equipment and ultimately damage the air conditioner. In addition, at low temperatures may freeze drain drainage tube, and then the water from the indoor unit will flow into the room. However, several models of firms DAIKIN, LG, DELONGHI adapted to the Russian climate and can operate at temperatures down to -25 ° C. Nevertheless, even they have as the temperature decreases power. Therefore, in some cases, for economical use of space heating oil radiator or heater, which is also ten times cheaper than the air conditioner. Think in advance where to place the external unit of the device. It is best to install it on the balcony. There he will be available for withdrawal, as well as protected from falling icicles. The average air conditioner removes from the air 1-2 liters of water per hour, so be sure to discuss with the specialist, which will be sent to the drain pipe. If you have to remove the pipe to the street, you must ensure that it is heated (otherwise, at temperatures below freezing is likely diverted moisture). Keep in mind that appliances with Freon R-22 - timeless technique, which is going to change the model with freon R407C or R410a. Air-conditioning is not a standard household appliances that simply turn the socket. The most important thing is not even the equipment itself, but whether it will be professionally installed and how it will be a qualified guarantee and service. The key to reliable operation of the device for a long time is the reputation of the company, carry out installation. Of course, no serious company will never offer modern equipment and high quality service at bargain prices, so do not trust a low-cost equipment and free installation services. When entering into a firm contract for the installation and maintenance of the air conditioner make sure that the text was given the list of services, agreed verbally, as well as timing of the installation of equipment. Remember that the warranty and service - not the same. Warranty - available only through authorized manufacturer of HVAC companies, which are usually distributors of this brand. In this case, leading companies have increased the warranty on the air conditioning equipment to 2-3 years, provided that the necessary preventive measures (cleaning filters, checking oil level, etc.), will provide the user or company representative. Servicing is necessary to ensure the smooth functioning of the device and can not be reduced to a simple replacement of the batteries in the remote control or clean filters. This is a complex work, requiring staff weather firms good theoretical preparation and some practical skills. In addition, because of the high cost of diagnostic equipment service is only for serious specialized companies. Well, on the approaches to the selection of air conditioners is said, perhaps, have done. And if any your question still remained outside of this article, consult a specialist. And remember, their level of skill will ultimately depend on "weather" in your home.
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