The core problem of compressor oper
Is the duct air conditioner a central air conditioner Advantages and disadvantages of duct machines and central air conditioning
At present, there are mainly three types of household central air conditioners that are popular on the market: one is air-cooled heat pump hot and cold water units, commonly known as water machines (water system central air conditioners); the second is multiple connections, commonly known as one tow multiple; the third is ducted air supply Air-conditioning heat pump unit, commonly known as air duct machine. For the comparison of these three types of units, although the air duct machine is noisier, it has the advantages of lower price and higher energy efficiency of the unit.
duct machine is the abbreviation of hidden air conditioner. Its indoor unit is basically the same as that of central air conditioner, and it is installed in the ceiling. Since it is an external machine with an internal machine, it is not a central air conditioner in the true sense. However, compared with the one-to-multiple central air conditioner, the air duct machine is cheaper to make, and the effect of indoor decoration is exactly the same as that of the central air conditioner.
Air duct machines and central air conditioners have no problem of good or bad, only the problem of suitability. From a technical point of view, the central air conditioner basically uses frequency conversion technology at present, and the technical level must be more advanced than the air duct machine using conventional fixed frequency technology, but its weakness is that the cost is higher than the air duct machine and the maintenance cost is slightly higher. So each has its own advantages and disadvantages, it depends on how you choose.
The advantages of the air duct machine: low cost, the same indoor effect as a central air conditioner, easy maintenance, and more suitable for the air conditioning habits of Chinese people.
The shortcomings are: fixed frequency technology, more outdoor units, requiring more outdoor units.
The advantages of central air-conditioning: advanced technology, higher energy efficiency ratio, simpler outdoor piping, and fewer outdoor unit location requirements.
The disadvantages are: slightly higher cost and higher maintenance cost.
From the perspective of comfort and energy saving, central air conditioners are better than ducted air conditioners, so both have their own advantages and disadvantages. The air duct machine mainly sends air to the room through the air conditioner connected to the air duct. The so-called high static pressure air duct machine is the air duct type air conditioner. The air blower used is a high static pressure fan. The higher the static pressure, the longer the air supply head. The farther the wind is.
The working principle of duct air conditioner: The indoor heat exchanger is concentrated on one indoor unit, and the cold air generated by the indoor unit is sent from the system duct to each room, and then sent back to the indoor unit through the return duct, after cooling and mixing part of the fresh air Send it out again, which is a central air conditioner with an all-air system.
Ducted air conditioners and central air conditioners have basically similar functions, so many people will mistakenly think that ducted air conditioners are central air conditioners, but they are not. From the outside, the indoor unit of the air-conditioning duct machine and the indoor unit of the central air-conditioning unit are basically the same, and they are all in the form of a ceiling. The decoration effect is similar, so why do you say that the duct-machine air-conditioning is not a central air-conditioning system, because it is One external unit drags one internal unit, and central air conditioners generally have one tow multiple forms, and ducted air conditioners cannot fully achieve the effect of central air conditioners.
Compared with the central air conditioner, the ducted air conditioner is cheap, easy to maintain, and more suitable for the air conditioning habits of the Chinese. Secondly, although the ducted air conditioner is an outdoor unit with an internal unit, its indoor unit and central air conditioner They are basically the same, and they are installed in the ceiling, so the effect of the interior decoration is exactly the same as that of the central air conditioner, which is very beautiful.
The air duct machine is an indoor unit corresponding to an outdoor unit, so it requires more locations for the outdoor unit; secondly, the air duct machine controls the indoor unit and the outdoor unit as a whole, just like the household air conditioner, due to the fixed frequency technology, the air duct machine Air conditioning consumes electricity for a long time.
Overview of the characteristics of the duct machine:
1. Application scope: duct machines are used in unit projects with a relatively small area; central air conditioning is used in unit projects with a relatively large area.
2. Operation mode: One indoor unit corresponds to one outdoor unit; the central air conditioner, whether it is a water system or a fluorine system, is an outdoor unit with several indoor units.
3. Control mode: The air duct machine controls the indoor unit and outdoor unit as a whole, just like the household air conditioner; the central air conditioner can control the indoor unit and outdoor unit separately.
