The difference between variable frequency air conditioner and fixed frequency air conditioner

Air conditioning is generally more commonly used in summer and can be used for heating in winter and therapeutic treatment in summer. Therefore, the choice of air conditioning is also a big issue. It is mainly divided into two types: variable frequency air conditioning and fixed frequency air conditioning. Variable frequency air conditioning is mainly used for automatic and stepless speed change. It mainly provides the required cold and heat automatically according to the situation in the room, and then runs non-stop to ensure the stability of the ambient temperature.

The main difference of variable frequency air conditioners is that the power supply frequency cannot be changed, and they turn on and off by themselves, causing the room temperature to fluctuate and consume more energy. The main difference is that the operating principles of the compressor are different, and there are also differences in many aspects. Here we briefly introduce what variable frequency air conditioners are. The host of a variable frequency air conditioner automatically performs stepless speed changes, and it can automatically provide the required cooling (heating) according to the room conditions; when the indoor temperature reaches the expected value, the air conditioner host will operate at a constant speed that can accurately maintain this temperature, realizing "non-stop operation", thereby ensuring the stability of the ambient temperature.

What is a fixed frequency air conditioner?

The power grid voltage in my country is 220 volts and 50 hertz. Air conditioners that work under this condition are called fixed-frequency air conditioners. Since the power supply frequency cannot be changed, the compressor speed of traditional fixed-frequency air conditioners remains basically unchanged. The indoor temperature is adjusted by constantly "turning on and off" the compressor. The on and off movement can easily cause the room temperature to fluctuate and consume more electricity.

The difference between variable frequency and fixed frequency air conditioner

The biggest difference between variable frequency and fixed frequency air conditioners is the different application principles of the products on the compressor. The compressor of the variable frequency product can adjust the temperature appropriately when it is turned on for a long time. If the room does not need a lot of cooling or heating, the air conditioner will operate at a low frequency and intelligently control the temperature constantly. The fixed frequency product requires manual switching of the air conditioner to adjust the temperature.

The characteristics of variable frequency air conditioner are energy saving. Because the variable frequency air conditioner uses the built-in inverter to adjust the operating speed of the heart of the air conditioner - the compressor - at any time, it can achieve rational use of energy; because its compressor is not turned on frequently, it will keep the compressor in a stable working state, which can enable the air conditioner to achieve an overall energy saving effect of more than 30%. At the same time, this has a very obvious effect on reducing noise and extending the service life of the air conditioner.

High temperature control accuracy. It can control the cooling (heating) capacity of the air conditioner by changing the speed of the compressor. Its cooling (heating) capacity has a variation range. For example, the cooling capacity of 36GW variable frequency varies from 360-400W, and the heating capacity varies from 300-6800W. Therefore, the indoor temperature control can be accurate to ±1℃, making the human body feel very comfortable.

The temperature adjustment speed is fast. When there is a large difference between the room temperature and the set temperature, the variable frequency air conditioner will work at maximum power as soon as it is turned on, causing the room temperature to rise or drop rapidly to the set temperature, with obvious cooling (heating) effects.

Keep the room temperature constant. Inverter air conditioners use inverter compressors, which can automatically adjust the operating frequency of the compressor according to changes in the room's cooling (heating) load. After reaching the set temperature, the inverter air conditioner operates at a lower frequency, avoiding the discomfort caused by drastic changes in room temperature. When the load is small, the operating frequency is low. At this time, the compressor consumes less power and avoids frequent starting and stopping, thus saving more electricity.

The above is the difference between variable frequency air conditioners and fixed frequency air conditioners. The main difference lies in the operating principles of the compressors. The compressors of variable frequency air conditioners can operate for a long time and can adjust the temperature appropriately. The compressors of fixed frequency air conditioners mainly operate at a low frequency and cannot be intelligently controlled. Therefore, the choice is also critical in daily life.