Split type air conditioners are familiar electrical equipment. With the improvement of living standards and the development of air conditioning technology, more and more families are installing central air conditioners. However, the price of central air conditioners scares away many users, and the installation of split air conditioners cannot show the atmosphere. Therefore, the air duct machine sandwiched between the central air conditioner and the split air conditioner appears. The installation method is similar to that of the central air conditioner, and the price is similar to that of the sub cabinet machine. The appearance of air duct machine has solved the problem that many users choose air conditioners.
Differences and Similarities between Central Air Conditioner and Air Duct Unit
Same point
The installation of air duct units and central air conditioners are very similar. All pipes and indoor units are hidden in the ceiling to achieve aesthetic effect and save space. At the same time, the effect is more comfortable.
difference
The air duct unit is a single online unit, which drives the indoor unit through the outdoor unit, while the central air conditioner is a multi online unit, which drives multiple indoor units through one outdoor unit. The central air conditioning technology is relatively mature, especially the compressor technology. The frequency conversion technology is used for household central air conditioners, while the constant frequency compressor is generally used for air duct machines. However, with the development of air conditioning technology, many duct fans also use frequency conversion technology to improve energy saving and reduce noise.
Features of air duct fan
advantage
① Affordable price
The price of the air duct machine is higher than that of the ordinary hanging machine, similar to the cabinet machine. The price of three fan tube units of domestic first-line brands is similar to that of cabinet air conditioners. The overall installation price is generally about 7000 yuan, and the price of three high-end cabinet air conditioners is more than 10000 yuan. It can be seen that the price of the air duct units (three sets) commonly used in the guestroom restaurants is relatively cheap.
② Space saving
Cabinet units and suspended air conditioners will occupy indoor space. Cabinets usually occupy an area of 1 square meter on the ground, which will become a dead corner to hide crimes and responsibilities. The suspended air conditioner is hung on the wall, so the space for indoor installation of cabinets or decorative paintings is small, while the air duct unit is thin and hidden in the ceiling. The current air duct fan pays more attention to the installation space. The thickness of some air duct fans is only about 19cm. Even low rise houses can meet the installation conditions.
③ Flexible installation position
The installation position of air duct unit is flexible and concealed, and the ceiling of the whole room is usually not required. In addition, the installation position of air duct unit is relatively small and flexible. There are many ways to match the air outlet and return air outlet. In addition, the installation length of copper pipe is longer than that of split air conditioner. It can be installed far away from the outdoor unit, near the outdoor unit, or even in the cabinet (design the air outlet and return air).
④ Uniform airflow
Air duct unit is also called simple central air conditioner. Compared with ordinary split air conditioner, the air supply distance is longer, the air circulation is more uniform, and the air supply angle is close to 360 °. The utility model can also avoid blowing directly to the human body, and the use comfort is extremely high.
shortcoming
The disadvantages of duct fan are also obvious. For the installation of split air conditioner, it is required that one outdoor unit corresponds to one indoor unit. Therefore, the more indoor units are installed, the more outdoor units need to be installed, and the central air conditioner only needs one installation location. The fixed frequency air duct machine is relatively cheap, but the noise and power consumption will also be relatively large. Variable frequency air duct machine will be more expensive, with lower noise, better energy saving effect and higher comfort. However, like the central air conditioner, maintenance requires professionals.
Precautions for air duct machine procurement
Power of air duct fan
The air duct machine also has power supply. When purchasing the air duct machine, please select the appropriate power supply according to your actual situation. You can't buy too big or too small. High power air duct machine is expensive and noisy. The comfort of installing it in a small space will be reduced; Small power air duct machine is cheap, but its application area is small, and it is difficult to achieve the air conditioning effect when installed in a large space.
Select frequency or frequency conversion for air duct machine
In fact, both the fixed frequency air duct unit and the variable frequency air duct unit can meet the needs of users, but the temperature fluctuation of the fixed frequency air conditioner is large, while the temperature change of the variable frequency air conditioner is small, the use noise is small, and the use is more comfortable. The final choice depends on the user's air conditioning investment budget and air conditioning frequency. If the budget for purchasing air conditioners is sufficient and the use frequency is high, it is recommended to purchase variable frequency air conditioners; If the budget for purchasing air conditioners is insufficient, and the frequency of using air conditioners is relatively low, and you can tolerate higher noise, you can consider installing air conditioners with a fixed frequency.
What installation conditions are applicable to air duct machine
If the installation position of the room air conditioner is strange and the installation of the split air conditioner is difficult, you can choose the air duct machine; If the pipe installed in the split air conditioner is too long and the indoor pipe is exposed too much, which has a great impact on the beauty of the room, you can choose the air duct fan; If the room space is relatively large, the floor height is relatively high, and there is a ceiling design, duct fans can be selected; If you think the split air conditioner is not beautiful and want the central air conditioner to be beautiful, but the budget of the air conditioner is insufficient, you can choose the air duct machine.
summary
In order to meet the public demand for air conditioners, all kinds of air conditioners have their own markets and users. If the building area exceeds 200 m2, the purchase of central air conditioners is basically necessary. Although the price is expensive, the electricity cost is high, the maintenance cost is high, and the central air conditioning effect is good; If the building area is between 100-200 m2, the number of rooms in this room type is large, and the total cost of using split air conditioners, room air duct units or central air conditioners is not different. At present, central air-conditioning is a luxury, but it is still a cost-effective solution; If the building area of the house is less than 100 square meters, there is a big difference between the prices of central air conditioners and split air conditioners. At this time, the combination of the restaurant air duct machine and the bedroom hanging machine can not only get the beauty and comfort of the central air conditioner in the public space, but also get the control of the overall price. In a word, the air duct machine provides users with more choices.