Which Type of Refrigerant is Generally Used in Household Air Conditioners?

reasons for air conditioning not cooling

At present, due to global warming, people use air conditioners more and more frequently, but not everyone is familiar with the type and use of air conditioner refrigerants. Let’s take a look at the types of refrigerants commonly used in household air conditioners.

R22 and R410A refrigerants are the two most well-known air-conditioning refrigerants, but because r22 has a certain damaging effect on the ozone layer, it is a transitional refrigerant. The R410A refrigerant derived later is also a widely used refrigerant model.

Comparison of R22 and R410A

Features of R22: It is a colorless, almost odorless gas at room temperature, non-flammable, non-explosive, non-corrosive, slightly more toxic than R12, but still a safe refrigerant, with a safety classification of A1. Pressurized to liquefy into a colorless and transparent liquid. The chemical stability and thermal stability of R22 are very high, especially in the absence of moisture, it will not react with general metals below 200 °C. Only works slowly with bases in the presence of water. But cracking occurs at high temperatures. R22 is a low-temperature refrigerant, which can obtain a refrigeration temperature of -80°C.

R410a is used in inverter air conditioners. It is a new type of environmentally friendly refrigerant that does not destroy the ozone layer. The working pressure is about 1.6 times that of ordinary R22 air conditioners, the cooling (warming) efficiency is high, and the performance of air conditioners is improved.

Features of R410a: R410a new refrigerant is composed of two quasi-azeotropic mixtures R32 and R125 with 50% each. At the same time, because it does not contain chlorine, it will not react with ozone, that is, it will not destroy the ozone layer. In addition, the performance of air conditioners using new refrigerants will also be improved to a certain extent. R410A is the most suitable refrigerant to replace R22 so far internationally recognized and has been popularized in Europe, America, Japan, and other countries. Global trends and prospects of R410A replacement in major international markets, usage status, and entry into international markets.

The above is the introduction of which type of household air conditioner is generally used. Note that the air conditioner refrigerant must be filled according to the model marked on the air conditioner to avoid damage to the air conditioner system.


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