Central air conditioning market regardless of whether the brand or a wide range of products, to distinguish is not easy to buy when you can see the technical parameters, the following technical parameters are commonly used, to seriously look yo, or was fooled on the bad.

Cooling capacity: air conditioning provided by the cooling capacity, that is often said that the air conditioning a few (2500W = 1), the general household for the 200W per square meter, for example: the room is 12 square meters, the required cooling capacity of 12 square meters 200W / ㎡ = 2400W ≈ 1, that is, 12 square meters room needs 1 air conditioning.

Tips: must be 200W per square side, and some non-standard companies by less than 200W to get low-cost competitiveness, when the air conditioning is not cold on the trouble.

Input power: simply say how much power consumption, and the cooling capacity is two concepts, the input power can look at the air conditioning nameplate. But the nominal is the maximum input power, that is, full power consumption.

Warm Tip: Some companies can also come up with the product book that the maximum power consumption is the compressor input power, in fact, there are fans in the air conditioning host also power, if the water system there is the pump power consumption, water pump And the power consumption of the fan is not a small number of the.

Energy efficiency ratio (COP): often said COP value, such as 3.7 or 4.2, COP higher and more energy-efficient, the more expensive. General fluoride system COP higher than the water system, but to see who power consumption have to look at the input power, not a simple nominal COP high power.

Tips: Some businesses may tell you that my COP (energy efficiency) how much, in fact, they only said that the maximum COP value, the actual reach, and COP is also divided into the highest COP and average COP, the average COP closer In the case of actual use.

Cooling ratio: the ratio of the indoor end to the outdoor host. For example: the end of the indoor cooling capacity of 20KW, according to the same rate of 70%, that is, 20KW × 70% = 14KW, and then according to the actual model to take the principle may be used on the 15KW or 16KW outdoor host, if the same rate of 80 % -90%, will be equipped with about 19KW outdoor host.

Tips: cold ratio must be asked by the number of open rate at the same time count, with a small time to use is also very silent.

Noise: The main concern is the indoor noise, the general number of decibels, there is a maximum and minimum.

Tips: generally may encounter someone say a difference of 4-5 dB problem is not big, in fact, the actual feeling in the big 9 dB is equivalent to the sound doubled.

Frequency series: mainly for the fluorine system, the water system frequency conversion is not obvious, that is often said how many frequency conversion, the higher the better the series, the more power, the more accurate temperature control.

Tips: Do not say 10, 20 is enough, the fluorine system is to play the central air conditioning frequency series, the higher the frequency series of higher technical content. The

Electromagnetic shielding: frequency converter will produce high-frequency electromagnetic radiation, the human body is absolutely harmful, especially for pregnant women and women and children, do not do electromagnetic shielding is not responsible for life.