Air conditioning purchase

When summer arrives, every household needs to blow air-conditioning. How to choose air-conditioning?

1, the number of horses to choose the Chinese people have formed a "patch" to distinguish the habit of the size of air conditioning power, the relationship between the legal power and the number of horses 1 2325W, 1.5 ≈ 3500W

The output cooling capacity (heat) of the selected air conditioner should correspond to the area of ​​use. Due to the difference in room conditions and regional climate of using air conditioners, and plans for extreme weather, buying air conditioners should be big or not.

There are many factors that will affect the air-conditioning temperature effect, the most important floor, west sun, west window, apartment and other items, then how to accurately calculate the air conditioning power required by the room size?

First, the required cooling capacity per square meter is set at 150W;

If the top layer and West Sun account for one of them, calculate it at 200W per square meter;

If there is west window or both top and west, at least 250W per square meter;

Both west window and top floor, at least 300W per square meter;

Can only be more or less, otherwise the constant speed machine does not stop or the frequency converter always runs at full speed until the protection is started, which can not adjust the room air temperature; area selection refers to the following table area applicable to the size of air conditioning (refrigeration)

10 machines below 23M2 (small one)

10M2-14M2 26 machines (big one)

14M2-18M2 32 machines (small one and a half)

16M2-20M2 35 machines (one and a half)

20M2-32M2 50 machines (two positive)

30M2-45M2 61 machines (two and a half)

45M2-55M2 75 machines (three big horses)

2, the choice of air conditioning type (fixed speed and frequency)

Home air conditioners are divided into variable speed and fixed speed. The same number of air conditioners can regulate indoor air temperature, inverter air conditioners are larger than fixed speed air conditioners. Inverter air conditioners are relatively cost-effective and use more energy. In addition, inverter air conditioners can achieve accurate temperature control and prevent “air conditioning disease” in certain procedures.

1. Fixed speed air conditioning fee:

1 The starting current of the fixed speed air conditioner is several times the rated current, and the constant speed air conditioner frequently turns on and off during operation, which consumes electricity.

2 The constant speed air conditioner has been operating with a rated high power heating. After the room temperature rises to the air conditioner set temperature plus 1 degree, the air conditioner stops. After the air conditioner is shut down, when the room temperature drops to the air conditioner set temperature minus one degree, the air conditioner starts again, and so on. Refrigeration is no different.

3 The fixed-speed air conditioner has insufficient heating capacity in winter and is equipped with electric auxiliary heating elements, and the energy efficiency ratio is only 1. The electric auxiliary heating power for fixed speed air conditioning is 1~2kW, which is very power-consuming.

2. Power saving of inverter air conditioner:

1 The boot of inverter air conditioner is a soft start, no inrush current, no waste of electricity.

2 Inverter air conditioner runs in high frequency operation to raise temperature first, when the room temperature reaches the air conditioning set temperature, the air conditioner turns into the low frequency movement heat preservation, does not stop. The power consumption for continuous low-frequency operation is only one third of the rated power, or even only a quarter. Refrigeration is no different.

3 Inverter air conditioners do not use electricity-assisted heating elements.

To sum up, the continuous low-frequency operation of the inverter air conditioner has neither the frequent starting of the inrush current, nor the long-time high-power operation like the fixed-speed air-conditioner, nor the electric auxiliary heating element that is very power-consuming. Speed ​​air conditioning energy saving.