Master three-point elements to select qualified home central air conditioners
[China State Grid original] For many people, there is a willingness to buy a home central air conditioner, but suffer from not knowing how to choose, but also afraid of being fooled, so can only give up.
But if we have the conditions that a qualified home central air conditioner must meet, things are much simpler.
At present, when we choose home central air conditioner, we can first judge whether the product can be selected from the parameters. The main reference parameters are as follows.
noise
For household central air conditioners, which are the products we are likely to use throughout the year, the noise standard is definitely one of the first issues we need to consider.
The noise of the home central air conditioner mainly comes from the condenser of the outdoor unit and the evaporator of the indoor unit. Generally speaking, the current national air conditioner indoor unit with a cooling capacity below 2000W should not exceed 45 decibels and the outdoor unit should be no more than 55 decibels. The air conditioner indoor unit noise of 2500W to 4500W is not more than 48 decibels, and the outdoor unit cannot be more than 58 decibels. Although this regulation is mainly for ordinary split type household air conditioners, it is also based on scientific calculations, which represents the maximum number of noises we can accept, so we can use it as a reference when purchasing home central air conditioners.
Cooling capacity
Generally speaking, the national standard stipulates that the actual cooling capacity of an air conditioner cannot be lower than 95% of the rated cooling capacity. The cooling capacity determines the experience of air conditioning and is the primary goal of our air conditioning installation. Therefore, this standard is also very important.
Energy efficiency ratio
Many people are worried about the cost of home central air conditioning. However, in terms of energy efficiency, household central air conditioners are relatively more energy efficient.
The energy efficiency ratio refers to the ratio of cooling capacity to cooling power. The national standard stipulates that the energy efficiency ratio of 2500W and below is 2.65; the energy efficiency ratio of 2500W to 4500W is 2.70. Generally speaking, the current household central air-conditioning has exceeded this energy-efficiency ratio, but it does not rule out that there are some products that touch the fish, so we must look at it and buy it when purchasing.
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