Mitsubishi air conditioners

The most common question that can be heard from the customer is: "Why does the Mitsubishi Electric air conditioner cost two or even three times more than the Chinese counterpart?". A distinctive feature of Mitsubishi Electric air conditioners is quality. The development of one new line can take several years. For example, a split system of the MSZ-SF series has been developed for five years and cost the company several million euros. Dozens of highly qualified engineers and technologists are working on this task, using the most modern software. The terms of reference for the design are set as follows: new systems should be ahead of similar equipment that currently exists in terms of energy efficiency, noise level and reliability. Only one thing can be sacrificed - these are the overall dimensions, since an oversized fan is needed for silent operation. But this often turns into a virtue, as the margin of safety increases. For example, every new Mitsubishi Electric model undergoes survival tests. In one of the tests, half close the air access to the indoor and outdoor units. This is an imitation of contamination of filters and heat exchangers if they have not been cleaned for a long time. In this state, the air conditioner is driven for a month, and it does not overheat and does not turn off by protective devices. An air conditioner is a complex electromechanical device, some of whose components (compressor and fans) are sources of vibration, therefore, even at the design stage, special expensive software is used to perform mathematical modeling and calculation of vibration characteristics. The program allows you to calculate the amplitude and frequency of vibrations at all points of the refrigeration circuit and make sure that there are no dangerous resonances. If necessary, couplers, compensators and balancing elements are installed, so when you are near the outdoor unit, it can be difficult to determine whether it is working or off. However, it is difficult to simulate road conditions, so factories have special vibration stands. At Mitsubishi Electric factories, a special production organization has been introduced, which excludes the exit of a defective product from the assembly line. We can say that all new Mitsubishi Electric air conditioners are “used”. The fact is that at the factory each unit works for 20 minutes and undergoes full testing. If something is out of order, the block is not handed over for scrap, but sent for research to the quality department, which is obliged in each case to find the cause of the deviation from the norm. Therefore, an intentional or unintentional error of the operator or the dishonesty of the component supplier is unable to affect the quality of the products. And what are the disadvantages? There is only one disadvantage of Mitsubishi Electric air conditioners - they cannot be cheap.