Founded in 1924, Daikin is the only manufacturer in the world that integrates compressors, refrigerants, inverter modules and other upstream industrial technologies of air conditioners, and its product performance and quality have been tested by the market for a long time.
 
The pioneer of multi-connected central air conditioning
 
In 1973, Daikin first developed a multi-connection model in which an outdoor unit was linked to multiple internal units, and then developed a VRV system, ending the history of central air conditioning "one on, one off, all off".
 
The main feature of central air conditioning is that an outdoor unit can be linked to a number of indoor units, as for how to control the refrigeration capacity of different internal units, which requires the cooperation of VRV system, the hardware basis of VRV system is the refrigerant divergent device, including divergent tube and divergent box, which is better or worse by the industry. The divergent tube has low space requirements and good concealment, but it is difficult to weld. The divergent box will occupy a certain layer height, but there is no need for welding operations, and the maintenance cost is low.
 
It should be reminded that there are still many "pseudo central air conditioners" on the market that are not equipped with VRV systems, known as "multi-tube and multi-linked" machines, which lack accurate refrigerant distribution capabilities, relatively low energy efficiency, and the number of internal units must match the number of nozzles of the external unit, and the degree of freedom of choice is obviously limited.
 
Precise temperature control - high-precision refrigerant system
 
The most direct experience brought by the high-precision control of the refrigerant is that the temperature change is smooth and comfortable, without the feeling of sudden cold and heat. Although Daikin does not have a particularly outstanding advantage in the field of inverter technology, it still controls the indoor temperature fluctuation within the current optimal range of ±0.5°C by continuously improving the control accuracy of refrigerant flow, which often requires manufacturers to have strong integration capabilities for parts and control algorithms.
 
Daikin central air conditioning has a built-in industry-leading electronic expansion valve, with a single opening and closing flow rate as low as 0.043g, and an accuracy level of almost 10 times that of mainstream specifications.
 
In addition, Daikin has also cleverly carried out secondary development of high-precision refrigerant refrigerant system, and launched CoolMax liquid cooling technology to overcome the common fault item of "burning the motherboard", Daikin has introduced a bypass in the refrigeration system to accurately cool the motherboard in real time by controlling the bypass refrigerant flow, preventing the motherboard from "striking" in the summer high temperature.
 
Daikin's unique "temperature and humidity balance technology" is also based on a high-precision refrigerant system, which realizes dehumidification without cooling by diverting the refrigerant and using waste heat.
 
Daikin's signature oscillating compressor
 
Central air conditioners of 6P and below are usually equipped with twin-rotor instead of scroll compressors, because household central air conditioners are often in low and medium load operation, while twin-rotor compressors have good low-frequency performance and are more energy-saving, but vibration, noise and wear are still difficult to beat scroll compressors.
 
In order to improve the shortcomings of the twin-rotor compressor, Daikin has developed a unique oscillating compressor based on the traditional rotor compressor, which is based on the traditional rotor compressor for "all-in-one" improvement, so that the parts and components are changed from linear friction to arc contact, and the working stability has been unprecedentedly improved, while also retaining the excellent low-frequency performance of the twin-rotor compressor.
 
It is worth mentioning that the arc-shaped parts of the integrated design have extremely high requirements for production accuracy, and the slightest deviation will seriously affect the final performance of the compressor, which can also glimpse the rigor of Daikin's manufacturing process.
 
Based on the high-end, the models are abundant
 
In recent years, in order to meet the diverse needs of consumers, Daikin has gradually enriched its product line of household central air conditioners, but its flagship product VRV series is still the most worthy of purchase. As for the gold VEV series launched in recent years, it only adds smart connectivity functions, and users who do not have this need can choose the VRV series.
 
VRV series 6P and below hosts use Daikin's unique oscillating compressor, which has more advantages in energy saving, and the price of a 140㎡ three-bedroom and one-living room unit is about 5-60,000 yuan; The models above 6P are equipped with scroll compressors, with better high-frequency performance, suitable for large families such as villas, and the price is 6-100,000 yuan.
 
It is worth mentioning that the VRV series is currently equipped with the most abundant internal unit types in the household central air conditioning industry, with conventional, ultra-thin, four-outlet and other specifications to choose from, and even cloakrooms, toilets, bathrooms and other scenes have exclusive internal unit coverage to fully meet the personalized needs of users.
 
The LMX series can be regarded as a downgraded version of the VRV series, mainly limited in the freedom of choice of the internal machine, only 2 types are available, which is convenient for factory-scale mass production, and the price is about 20% lower than that of the VRV series.
 
The PMX, 3MX/4MX series belong to the "multi-pipe and multi-link" model, each external machine needs to be directly connected to the compressor, there is no central air conditioning unique refrigerant distribution system, whether it is heating performance, energy efficiency or temperature comfort have a large reduction, it is not recommended to buy, but the price has an advantage, the maximum number of external units can be selected 4 horses, suitable for small families, the price is about 3-40,000 yuan.
 
PROSHOP professional installation service
 
There is a saying in the central air conditioning industry that "three products, seven points of installation", the installation quality has a huge impact on the final performance of the air conditioner, and it is not shy to say that Daikin's household central air conditioning technology is difficult to form an advantage over high-end competitors, but the installation service is definitely ahead of other first-line Japanese brands, and has now laid out nearly 2,000 "PROSHOP" professional stores in the country, providing a series of perfect services such as pipe design, host selection, and installation of household central air conditioning. Consumers can check the address of the "PROSHOP" store in the city where they are located on the official website of Daikin, and pay attention to the identification of copycat stores.