· It is important to consider if there is a lack of gas.
· Once we have solved the leakage problem, we need to vacuum the system to remove the air and humidity from inside the pipes.
· The next step is to refill the air conditioner. The new air conditioners use the refrigerant gas R410A. This type of gas does not damage the ozone layer and improves the performance of compressor. Note that this type of gas is always charges in liquid state. You should the exact amount needed.
Different types of refrigeration gas for air conditioning
Cooling gases are believed to cause an increase in the temperature of the planet as they damage the ozone layer. For this reason, new types have been put on sale, which effect on the ozone layer is much smaller. Hydrofluorocarbons (HFC) are made the same way. The third generation, created to replace CFCs and HCFCs. Although it is considered not to be harmful to the ozone layer the presence of fluorine in its components contributes to global warming. Therefore from next year many of them will be forbidden and new substitutes will emerge.
Now the most commonly used freons are R410A, R134A, R404A, R422D, R407C, R414A, R427A etc.
Most of the new air conditioners use the R410A Freon, because they have a high cooling capacity. This is a substitute for the old gas R22, which since 1.01.2004 has been forbidden. Works at a higher pressure with synthetic POE oil. This gas does not damage the ozone layer, and the azotope mixture produces HFC gases. Characterized with low risk because it is not flammable. It is very important to know that this gas should be charged in liquid form, using the necessary tools.
The most common used refrigerant for car air conditioners is the R134A. This gas allows it to operate at a lower pressure than other gases, it is very energy efficient at low or medium temperatures, allowing it to be used in a variety of applications. This Freon works with synthetic POE oil.
The search for working with one refrigerant on low evaporation equipment creates the R404A. This is the indirect replacement for R502 and is used in new refrigeration equipment at low or medium temperatures such as water coolers, cold rooms or cold storages. This refrigerant should always be charged in the liquid state and use synthetic POE oil.
Freon R422D is designed to be a direct substitute for R22. This is a mixture of gases that do not damage the ozone layer. It can be used in refrigeration systems with medium temperatures and internal and commercial air conditioning systems. In the case of leakage, the equipment can be charged without any problems. It is compatible with the manufacturer’s original oil and the discharge temperatures are much lower, which contributes to the life of the compressor. Always charge in the liquid state.