Compared with the fixed frequency air conditioning that once occupied the main market position, people are now more fond of variable frequency air conditioning. Then what is variable frequency air conditioning in the end, and what kind of working principle does it operate? And now there are so many frequency conversion air conditioning products on the market, when we buy, there are no more classic product models can be used as a reference?
What does frequency conversion air conditioning mean
1. Introduction to Variable frequency air conditioners
Frequency conversion air conditioning in the work, the power supply frequency is high, the compressor speed is fast, the air conditioner refrigeration (heat) quantity is large; And when the power supply frequency is low, the air conditioner refrigeration (heat) volume is small. This is the principle of “frequency conversion”. The core of variable frequency air conditioning is its frequency converter, which realizes the automatic adjustment of the motor running frequency through the conversion of current, and changes the fixed frequency of 50Hz into the change frequency of 30-130Hz, so that the air conditioning completes a new revolution. At the same time, it also makes the voltage range of the power supply reach 142V to 270V, which completely solves the problem that the air conditioner can not work normally due to the instability of the grid voltage.
2. Working principle of frequency conversion air conditioning
The working principle of frequency conversion air conditioning and fixed frequency air conditioning is actually much the same. Frequency conversion air conditioning adopts more advanced technology, starting voltage is small, can be started in low voltage and low temperature conditions, which for some areas due to voltage instability or winter indoor temperature is low and air conditioning is difficult to start, has a certain improvement. Because of the realization of the continuously variable speed of the compressor, it can also adapt to the cooling and heating needs of a larger area.
Variable frequency air conditioning in the end to save money
Let’s settle the score. For example, if the air conditioner is used for 4 months per year, 30 days per month, and runs for an average of 8 hours per day, the cooling operation time is 960 hours, and the average power of the air conditioner is 2000W. During the cooling period, the total power consumption of the fixed-speed Grade 5 air conditioner (EER=2.6) is 1920 degrees. If the current standard level 5 variable frequency air conditioner is used (EER=3.3), the total power consumption is 1510 degrees, and the power saving is about 410 degrees, which only saves more than 270 yuan per unit per year. But the price of frequency conversion air conditioning is more than one thousand yuan than the price of ordinary air conditioning!
Also take into account that most northern cities have heating facilities in winter, so the annual use of air conditioning is only during the summer three months or so, most of the time the air conditioning idle. In this way, the advantages of frequency conversion air conditioning are not obvious.
Frequency conversion air conditioning products recommended
1. Panasonic large 1.5hp variable frequency Easy energy wall mounted heating and cooling Air conditioner SE13KJ1S
Reference price: 3598
Strong speed cold and warm, high frequency cold and warm exchange; Strong, stable and rapid start, low noise, greatly reduce power consumption; Effective dust removal to remove PM2.5; Soft wet refrigeration, so that maintain appropriate humidity; Efficient deodorization.
2.Haier/ Haier Air Conditioner KFR-26GW/03EBC23AU1 Large 1 piece variable frequency cloud intelligent heating and cooling wall hanging machine
Reference price: 2399
Remote control, with high level of awareness, active service for the furniture environment. No need to download APP, can be controlled by wechat; Voltage 150V-264V normal use, not afraid of voltage instability and peak demand; Wide frequency range, as low as 0.1Hz to save electricity, rapid cooling and heating frequency up to 160Hz.
Frequency conversion rare earth compressor, rare earth frequency conversion. Rare earth materials have good reliability and strong demagnetization resistance, which can ensure the long-term reliable operation of the system. A wider range of cooling heat; Mute 20 decibels, 10 minutes self-cleaning; Independent dehumidification, high density filter screen; Strong rust-proof outdoor unit.
Finally, it is worth noting that frequency conversion air conditioning consumes the most power when it is turned on, so the traditional concept of “open with use” is not applicable here. When using frequency conversion air conditioning, in order to save power, the temperature can be slightly adjusted higher under the premise of ensuring comfort, such as 27-28 degrees. When it is suitable for a long time, it not only ensures comfortable temperature, but also reduces power consumption to a certain extent.
