On the advantages and disadvantages of the central and split air-conditioning –
Editor's Note: Central air conditioning can improve and enhance people's lives and health, improve the production workshop of temperature and humidity. However, there is the choice for central air conditioning a variety of ideas and opinions.
With the continuous deepening of reform and opening up, China's continuous improvement of people's living standards, and the production process in various industries needs, central air conditioning has become a modern building must have one of the conditions. Central air conditioning can improve and enhance people's lives and health, improve the production workshop of temperature and humidity. However, there is the choice for central air conditioning a variety of ideas and opinions. Made the following note on this issue: central air conditioning and split air-conditioning, compared with a variety of advantages and disadvantages.
<1> Central air conditioning Better than the split air-conditioning air conditioning. Have central air conditioning can be ducted air conditioning vent or fan coil back to back drafts. Is the total cooling capacity of 1160KW project as an example; central air-conditioning make each room (such as restaurants, banquet halls, function rooms, offices, guest rooms, lobby, recreation center of the room, office, KTV song and dance hall, sound and light control room and bathroom, etc.) to achieve summer cooling and winter heating, ventilation in spring and autumn, the year-round air-conditioning effect.
To achieve the same cooling capacity with central air-conditioning effect, air-conditioning program must be purchased 11.6KW (1 × 104kcal / h) Split Air Conditioners 100, or purchase 2.9KW (0.25 × 104kcal / h) Split Air Conditioners 400, with split air-conditioning only in summer cooling, winter heating, set the heating system must be addition. Even if it can be difficult to ensure that each room fitted with split air conditioners, split air conditioners for the indoor and outdoor unit with tubes generally 3m long, up to 5m, some rooms as other conditions, indoor and outdoor difficult to ensure that the installation distance is less than 5m, 5m, such as greater than the effect of split air conditioning is not good.
<2> central air conditioning to ensure the delivery of fresh air to the room so the room always keep the air fresh, health. But the split air-conditioning can not be sent to fresh air, it is difficult to ensure the freshness of the air conditioned room; And if through the door, the window for ventilation, then cooling capacity will be a lot of damage, which affects not only the room temperature, but also a waste of energy.
<3> under-split central air conditioning. Such as the cooling capacity of 1160KW central air conditioning refrigeration air conditioning total investment of about 3.8 million yuan, while the same amount of split air-conditioning cooling the investment cost is 400 units * 10,000 yuan / station = 4,000,000 yuan. Such as central air conditioning cooling stations civil works costs roughly estimate 10 million, the central air-conditioning equipment, civil engineering and a total investment of 390 million; such as split air-conditioning roughly estimate the winter heating costs of 40 million, then split the summer for air conditioning to achieve cold, winter heating equipment total investment of 440 million, shows that investment costs are still lower than the central air conditioner split air-conditioning plus heating system investment cost.
<4> Operation and Management of flexible central air conditioning, and operating costs lower than the split air-conditioning. Central air conditioning and refrigeration stations directly control the opening of refrigerator cold stop time and the size can be adjusted according to climate change to save electricity to run. The split air-conditioning such as cooling is greater than 58KW, its electricity to run than central air conditioning, and difficult to control the spread unity of the room.
<5> less good repair central air-conditioning fault. Central air conditioning unit and return both the air duct system or room fan coil and air system, are difficult to break down and refrigeration equipment is located in the cooling station, convenient for maintenance. But the split air conditioner split air conditioner all over everywhere, not only the large number of refrigeration compressors and most hung on the walls of the fault to the maintenance of good hard 11.
<6> central air conditioning and long life. Split air-conditioning, such as for the public, generally 3 to 5 years to be new ones on the machine, while the central air-conditioning is available from 8 to 15 years.
<7> central air-conditioning noise is less than split air-conditioning. Central air conditioning can be added all kinds of muffler to reduce noise, and split air-conditioning such as the use of window air conditioner, it is difficult to achieve noise reduction measures.
<8> Central air conditioning can be achieved in close coordination with the construction of luxurious decoration, and bright the results. Central air conditioning piping and equipment can be concealed within the ceiling, so that the decoration of rooms with different functions to do the layout of various shapes, decorated modern architecture to achieve the special effect, give elegant, luxurious, bright, comfortable beauty. However, air-cooled split air conditioner outdoor unit to be fragmented or mounted on a wall hanging out outside the ground, the impact of external decoration effect, including the indoor unit must be wall hung or placed in the ground, but also take up interior space, This is tantamount to reducing the use of room space.
<9> split air-conditioning condensate difficult to handle.
Above the central air conditioning and split air-conditioning part of the comparative advantages and disadvantages, this is great, the advantages of medium-sized central air conditioning, if used for home-based Ze Xu additional consideration.
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