Although Hitachi's position in the split air conditioning market in China has declined in recent years, the blocking of market strategies is a common problem for Japanese companies in China, and Hitachi's strong position in the field of air conditioning technology should not be underestimated. In the Japanese domestic market, Hitachi has competed with Mitsubishi Electric, Panasonic and other manufacturers with its solid basic skills and unique technical advantages, and has been in the first-line brand camp for a long time.
 
This is a split-system air conditioner equipped with a scroll compressor
 
In 1983, Hitachi successfully developed the world's first scroll air conditioning compressor, and has long held an absolute advantage in this field relying on the third-generation research and development results. Compared with the rotor compressor that is more commonly used in split air conditioning, scroll compressors have the advantages of low noise and vibration, extremely high reliability, and large load capacity, and are often used in large-horsepower central air conditioning, and Hitachi is almost the only manufacturer that decentralizes scroll compressors to split air conditioners, and its cooling and heating performance is outstanding, far exceeding the energy efficiency ratio of a level is more than many competitors, but only RAS/C-61EVY, GVYB series and other flagship models enjoy this treatment.
 
In addition, Hitachi's rotary compressor is also excellent, the product quality is stable and reliable, and it is generally equipped with low-end split air conditioners, such as RAS/C-12KVZ, etc., and the original production line of Gree's Lingda compressor was introduced from Hitachi at the end of the last century, and the technology was updated on this basis.
 
The world's first full DC inverter
 
As the pioneer of full DC inverter technology, Hitachi has continuously strengthened its leading edge and launched the latest anti-drift ultra-high precision DIP-IPM inverter, which adopts PAM PWM dual-mode control, and its frequency output range is as high as 0-230HZ, which is almost double the current mainstream frequency range, and the accuracy level is up to 0.1HZ. When the air conditioner is turned on, it is connected to PAM control, which uses the characteristics of high speed to quickly cool down, and after cooling, it is transferred to PWM control, and uses its high-precision characteristics to make subtle temperature adjustments, and finally realizes the temperature control effect of ±0.5°C.
 
New idea of defrosting - bypass heating
 
Heating and defrosting has always been a "big problem" that plagues manufacturers. Many air conditioner manufacturers have a similar idea of defrosting, that is, to shorten the defrost time as much as possible and extend the heating supply, but Hitachi has a unique understanding of this.
 
Hitachi divides the heat exchanger refrigerant duct of the outdoor unit into two, and when defrosting is not required, both the main road and the bypass circuit are in the state of heating supply; When the external unit detects the need for defrosting, the main bypass performs defrosting and heating work respectively, at this time, the heating temperature drops but will not be interrupted, and the heating of normal intensity is restored after the defrosting cycle is completed. This design of "splitting into two and taking turns to defrost" can be called the most ideal defrosting solution nowadays, and it is no wonder that Hitachi dares to shout the loud slogan of "No. 1 in the Japanese market".
 
The pioneer of frozen self-cleaning
 
The air conditioner will inevitably hide dirt and dirt after a long time, and the "frozen self-cleaning" developed by Hitachi can complete the cleaning of the air conditioner without adding any hardware. First, the cooling performance is raised to the limit, so that the indoor unit is filled with snow and frost, and the dirt is stripped from the fins, and then the heating mode is switched instantaneously, so that the snow and frost melt and drain the sewage, and the cleaning ability is extremely outstanding without any human intervention. At present, many domestic air conditioners have also borrowed this idea, but Hitachi, as the founder, has no competitor in terms of cleaning ability.
 
Word-of-mouth flagship - White Bear Jun
 
White Bear Jun is the culmination of Hitachi's advanced air conditioning technology, equipped with all the highlights of Hitachi, including the high-end scroll compressor that is generally used in central air conditioning, and other performance is also extremely outstanding, it is also respected by home appliance enthusiasts as a "god machine", but White Bear Jun is not on sale in the domestic market, it is recommended that consumers who pursue top flagships can seek purchasing channels such as overseas shopping, Japanese air conditioners have 100V and 200V two voltage specifications, 200V can be used directly in the domestic 220V environment.
 
Layout of the Chinese market
 
Hitachi has also released a number of products in the Chinese market, but it has not yet introduced functions such as freezing self-cleaning, and the two cores of air conditioning compressor and inverter technology are not absent.
 
In terms of the wall-mounted machine market, RAS/C-72KVY is currently the high-end flagship on sale in China, belonging to a large 3 hp model, suitable for large spaces such as the living room, it uses the original Japanese scroll compressor and advanced full DC inverter technology, the refrigeration performance is naturally not doubtful, the biggest highlight is its up to 10300W heating, the price is about 10000 yuan, and the large 2.5 hp RAS/C-61EVY price is about 8500 yuan, which is a cost-effective choice in high-end models.
 
Users who pursue higher cost performance can pay attention to the mid-range models of the GVX and other series, which use a lower-level dual-rotor compressor, and the other configurations have not shrunk, and the price ranges from 5,000 to 7,000 yuan according to the number of horses; The entry-level model represented by RAS/C-12KVZ can also be concerned, and the large 1.5 hp model is priced at about 3800 yuan, using full DC frequency conversion technology, full of sincerity.
 
In terms of cabinet market, Hitachi's products are mainly positioned at the high-end, and the GVYB series is priced between 11,000-15,000 yuan, with a maximum of 3 horsepower specifications. KVYB series is positioned slightly lower, with a price of 9,000-11,000 yuan, which is mainly reduced in compressor performance and energy efficiency compared with GVYB series.
 
Offline services need to be improved
 
Hitachi has almost the same technical strength as Mitsubishi Electric in the field of split air conditioning, but with the rise of domestic air conditioning manufacturers and the impact of the price war in the industry, Hitachi's split air conditioning market in China has gradually shrunk, and the offline service capacity is not as good as Mitsubishi Electric, Panasonic, Daikin and other first-line manufacturers.