What is the difference between frequency conversion and non-frequency conversion of air conditioners?

Constant-frequency air conditioner can adjust the indoor temperature by starting and stopping, which has a wide range of temperature fluctuations and is uncomfortable; The inverter air conditioner will run quickly at first, and when the indoor temperature reaches the predetermined temperature, it will turn to low frequency operation, with a small temperature fluctuation range and more comfort.

2. Energy saving is different.

Air-conditioning will produce instantaneous large current when it starts and stops, and the power consumption of air-conditioning is mainly high current when it starts; Because the inverter air conditioner does not need to be started frequently, it will switch to low frequency after reaching the set temperature, which consumes less power and is more energy-saving.

3. Different heating and cooling capacities.

Relatively speaking, the refrigeration heating capacity of inverter air conditioner is stronger than that of fixed frequency air conditioner. The heating and cooling capacity of air conditioner is mainly determined by the frequency of compressor. The higher the frequency of the compressor, the stronger the heating or cooling capacity.

4, the noise is different

The fixed frequency air conditioner runs at full power, while the variable frequency air conditioner will turn to low frequency operation after reaching the predetermined temperature, so the noise of the variable frequency air conditioner is lower.

Extended data:

Pay attention to the following points when purchasing and using inverter air conditioners:

1. When purchasing, the number of inverter air conditioners should be determined according to the room area (generally, one inverter air conditioner can be used in a room of about 14 square meters), and it should be avoided as much as possible in case of over-area.

2. In the process of installation and maintenance, when refrigerant needs to be added, the air conditioner should be set to trial operation mode or the inverter compressor should work at 50HZ by adjusting the set temperature, and then the refrigerant should be added according to the added amount.

3. The outdoor unit of inverter air conditioner has an inverter controlled by microcomputer, and its printed circuit board is easy to be damaged in high temperature and humid environment, so its outdoor unit should be installed in a dry and ventilated place to avoid sun exposure and rain. If the outdoor unit automatically shuts down after starting, it should be stopped immediately for maintenance to prevent the fault from expanding.

4. Don't set the temperature too low in daily use to avoid the air conditioner running at high speed for a long time. It is best to set it to automatic operation mode, which can not only cool quickly but also save electricity.

5. When buying, see if the technology is mature. Many domestic air-conditioning enterprises have launched their own frequency conversion series products, taking many nice names. However, consumers are becoming more and more rational under the financial crisis. The era of simply using the "frequency conversion" label to attract consumers has passed, and they need to come up with "real skills"-a mature core technology.

6. When buying, see if the quality is stable. Quality is the lifeline of products, and high-quality products can stand on the market for a long time and be accepted by consumers. For the "new favorite" inverter air conditioner, its quality stability is largely related to whether the technology is mature. However, the product quality is not up to standard, and it needs third-party verification.

7. See if the service is professional. For inverter air conditioners with complex technology, low-level "be caring and attentive" can no longer meet the needs of consumers, and professional service will become another indicator for consumers to choose air conditioners.

References:

Baidu encyclopedia-fixed frequency air conditioner

References:

Baidu encyclopedia-variable frequency air-condition