Is it better to buy frequency conversion or fixed frequency for household air conditioners?

Air conditioning is an essential electrical appliance for every family. When you go to the home appliance market to buy air conditioners, you often hear merchants selling inverter air conditioners, saying that they have the advantages of saving electricity, being quiet and comfortable, or that fixed-frequency air conditioners sell better. Why?

1, inverter air conditioner is expensive.

Common inverter air conditioners in the market are generally between 3000 and 4000, and fixed frequency air conditioners are around 2000. The price of inverter air conditioner is usually more expensive than that of fixed frequency air conditioner 1000~2000 yuan! Almost two fixed-frequency air conditioners.

2, inverter air conditioning maintenance failure

The electronic control design of variable frequency air conditioner is more complicated, the failure rate is higher than that of fixed frequency, and the maintenance cost is also high. For example, if the inverter drive of inverter air conditioner is damaged, it will take about 600 yuan to replace a single drive module. Also, if the compressor is replaced, the cost will be much higher than that of the constant frequency air conditioner with the same number of people.

Refrigerant used in frequency conversion is mostly R4 10A and R32, so it needs to be vacuumed for installation and maintenance. Because of the high pressure of these two refrigerants, if they are not pumped, it will lead to uneven working pressure, poor refrigeration effect and even failure.

The refrigerant used in the constant frequency compressor is R22 (Freon), which does not need to be drained when it is installed, but only needs to be drained. Refrigerant does not need to be emptied during maintenance, and refrigerant can be added directly. Therefore, the installation and after-sales cost of inverter air conditioners is much higher than that of fixed-frequency air conditioners!

3, inverter air conditioning short-term use does not save money.

Simply calculate an account. According to the calculation of three months' use and eight hours a day, the average power of air conditioner is 2000W W, the total power consumption of fixed frequency air conditioner is 1920 kWh, and that of variable frequency air conditioner is 15 10 kWh, which saves electricity by 4 10 kWh, saving electricity 300 yuan. In fact, if used for a short time, both of them actually run at the power frequency (50HZ), and the power consumption is basically the same.

4. High maintenance cost

The electronic control design of frequency conversion is more complicated, and the number of accessories is more than three times than that of fixed frequency, so the failure rate of frequency conversion air conditioner is also high, and the frequency and cost of maintenance are also higher.

There are many types and brands of air conditioners sold in the market. You can choose the appropriate air conditioner according to your installation space. Variable frequency air conditioning and fixed frequency air conditioning have their own advantages. Therefore, before purchasing, it is recommended that you choose the appropriate air conditioner in detail, and at the same time pay attention to the overall quality, function and price difference of the air conditioner.