The difference between the use of R410A, R32 and R22 refrigerants for air conditioners

Do I need to see what kind of refrigerant is used to buy an air conditioner? When buying an air conditioner, few people will ask this remote question, because the refrigerant used has no effect on the use of the air conditioner. Regarding household air-conditioning refrigerants, R22, R410A and R32 are commonly used. We people consider price, environmental protection, and safety.

1. Price

Regarding the price, it is actually not for consumers. Because they are all kits, the only thing to consider is that there will be a certain impact if you need to add refrigerant in the later stage. R22 is the most common, and the price is relatively cheap, r410a is medium in price, and R32 is more expensive. According to the latest data, the manufacturers that produce refrigerants this year have generally increased the price of refrigerants slightly. At the beginning of September, the main raw material of refrigerant-anhydrous hydrofluoric acid, the domestic mainstream manufacturers' price was about 11,000 yuan/ton. Using R22 air conditioner, its copper pipe quality will not be too good, because the pressure of this refrigerant on the copper pipe is lower. The use of R410A and R32 has higher requirements on the thickness and purity of the copper tube, because the pressure on the copper tube is more than 1.5 times that of R22. Therefore, if you want to use better copper tubes, the corresponding price will be higher. Therefore, you will find that, relatively speaking, R22 air conditioners are cheaper, R410A ones are more expensive, and R32 ones are more expensive.

2. Environmental protection

Regarding environmental protection, it depends on whether the bosses have the heart to protect the earth and leave some resources for future generations. R22 will destroy The ozone layer exacerbates the greenhouse effect. R410A will not destroy the ozone layer, but it will aggravate the greenhouse effect. R32 is currently the most environmentally friendly and will neither destroy the ozone layer nor aggravate the global greenhouse effect.

3. Safety

In terms of safety, R22 and R410A are similar to inert gases. R32 is a flammable gas, and it will explode when it reaches a certain concentration when it encounters an open flame. Occasionally there are news about air-conditioning explosions, most of which are due to improper installation techniques that caused R32 to leak and explode in open flame. Especially when the air conditioner needs to be repaired, some air conditioners using R32 refrigerant are not willing to take over.

Based on three considerations, I recommend the use of R410A refrigerant in air conditioners. First-line brand air-conditioning manufacturers at home and abroad are also gradually replacing R22 with R410A. If you look at it from a professional point of view, R32 refrigerant has the highest heat exchange efficiency.

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