First of all, we can identify whether it is frequency conversion or fixed frequency through the nameplate on the air conditioner. A group of letters such as BP and ZBP will be added after the frequency conversion series number, and the power has a certain range and is not fixed. Fixed frequency is more troublesome than frequency conversion, so it is necessary to manually adjust the cold and heat of the air conditioner.
Generally speaking, the appearance of variable frequency air conditioner and fixed frequency air conditioner is similar, so we can't see the difference between them from the appearance, but the surface of air conditioner is provided with nameplate, which will be written with model and series number. A group of letters will be added after variable frequency air conditioner, such as BP, ZBP, etc., which is easy to distinguish.
From the names of the two, we can know that the rated power of the fixed frequency air conditioner will not change. It has only a fixed cooling capacity, while the variable frequency air conditioner should be much more flexible. Its power and cooling capacity have a certain range and will not be a fixed value.
With the application principle of the compressor, it can also be distinguished. When the variable frequency air conditioner is turned on for a long time, it can properly regulate the temperature by itself. When the indoor temperature reaches a certain degree, it will operate in a low-frequency state and save energy. Fixed frequency air conditioning needs to adjust and control the air conditioning under artificial conditions, which is more troublesome.