In recent years, the central air conditioning has become more and more popular, which is related to everyone's good life, and it is related to the decline in the cost of central air conditioning. Almost every salesperson who sells central air conditioning can list a series of "advantages of central air conditioning (compared to traditional split air conditioning)".
But whether it is actually good or not, I am afraid that only those who have used it know: I have used it, and in the process of use, I have encountered 6 defects that are too big to ignore. If you want to buy it without regrets, or first see if you can accept these 6 major defects.
【Defect 1】The installation timing is strict
In the past, the split air conditioner was installed whenever it wanted. Even many owners have no money after decoration, you can not install it first - wait until the next summer, have a little savings in their pockets and then buy air conditioners.
Central air conditioning is not the case, it requires a lot of pipes and equipment to be installed on the ceiling. These things are a bit too ugly to be exposed directly on the outside, so you need to use the ceiling to cover them up.
Therefore, the installation of central air conditioning must be carried out before renovation. If you have already started the renovation, or even moved in for many years, you have basically missed the installation time of the central air conditioner and can no longer choose.
【Defect 2】High installation cost
Everyone knows that central air conditioning is more expensive than split air conditioning, but how much is more expensive, many people may not count in their hearts.
1 set of one-to-three central air conditioners, the price is generally more than 15,000 yuan. Three split air conditioners (1 cabinet and 2 hanging machines), the total price is about 10,000 yuan. So you think that central air conditioning is 5,000 yuan more expensive than split air conditioning?
Wrong! In addition to the sales price, central air conditioning also involves installation fees, handling costs and other costs. These costs add up to nearly $2,000, to say the least.
In addition, as mentioned earlier, the central air conditioner must be installed, and the ceiling must be made. If the cost of the suspended ceiling is included, the price will be several times higher.
【Defect 3】Use may not save power
In the mouth of the central air conditioning salesman, "central air conditioning is more power-efficient" is often regarded as a major advantage. But people who have actually used it know that central air conditioning is really not necessarily power-saving.
The so-called "power saving" of central air conditioning is that when running in multiple rooms, only one compressor is activated (the central air conditioner has only one air conditioner external unit). The compressor has a low start-stop frequency, so it saves more power.
But what about when only one room is used? Central air conditioning will be more expensive because the power of the external unit is too large (larger than the power of a single split air conditioner). The two rooms are used at the same time, and the power consumption of the central air conditioner is similar to that of the split air conditioner. Only when three or more rooms are turned on at the same time can the power saving effect be reflected.
【Defect 4】Maintenance is difficult and there are many faults
People who have used air conditioners, even if they have not done it, should have heard that every once in a while (the advice on the air conditioning manual is a month) to clean the air conditioning filter.
But the filter of the central air conditioner, hidden inside the suspended ceiling. Even if there is a maintenance port reserved, it is necessary to carry the ladder and drill into the ceiling to take the filter out and clean. Dangerous, tired, and has a great chance of staining the walls.
Moreover, most home users of central air conditioning reflect that the failure rate of central air conditioning is higher than that of split air conditioners. The main reason is that its pipes are too long, and any joint or bend that is broken may cause fluorine leakage, oil leakage or water leakage.
【Defect 5】The temperature setting is not precise
This point is actually not necessary to install central air conditioning in your own home, go to a hotel with central air conditioning to live overnight: the set temperature of central air conditioning is not so precise.
The set temperature of the split air conditioner can already be accurate to 0.5 °C. The set temperature of the central air conditioner can only be changed between 1 °C.
This is not the main thing, when multiple rooms use central air conditioning at the same time, the room that sets the high temperature will be affected. For example, if the master bedroom is set to 18 °C and the second bedroom is set to 26 °C, the actual temperature of the second bedroom will be low.
This is because the main pipe of the central air conditioner is shared. The temperature in the pipe is low, resulting in a large deviation in the temperature of the room where the high temperature is set.
【Defect 6】Maintenance is more destructive
A house, or a renovation, can be used for 20 years. But how long does the central air conditioner live? Five or six years or ten years? In short, it is difficult to reach 20 years.
The air conditioner is broken, what to do? If it is a split air conditioner, it can be directly removed and replaced.
But the central air conditioning, as we said earlier, needs to be hidden in the suspended ceiling. To dismantle, or repair the central air conditioner on a large scale, the ceiling must be destroyed.
In other words, central air conditioning directly affects the life of the decoration. Changing a central air conditioner is almost equivalent to a redecoat.