Air conditioner gas charging and things to know

(Baonghean.vn) -Air conditioners lacking or running out of gas is a common problem that affects capacity and reduces cooling efficiency.

Air conditioner gas charging is the process of supplying enough gas according to the machine's design pressure. According to the process, the air conditioner gas charging technician will check the gas pressure in the tank to see if there is any gas loss. So when is it necessary to charge the air conditioner with gas, and what should be noted when charging the air conditioner with gas?

The harmful effects when the air conditioner runs out of gas

- Money wasted:When the air conditioner runs out of gas, you turn on the air conditioner and don't understand why it's not cold, so keeping the temperature consumes a lot of electricity.

- Low or no refrigeration equipment:When the air conditioner runs out of air, it cannot cool, creating a stuffy atmosphere that makes it difficult to concentrate on work.

- Air conditioners are prone to damage:When the air is out of the gas and you still "persist" by using the machine without refueling, it can be gradually damaged, bringing many dangers when using.

Things to know about air conditioner gas charging

- Calculate gas refill price.The 9000BTU (1HP) air conditioner is weak and has a designed gas pressure of 75 psi. The technician tested the gas and found it was only 70 psi. So the air conditioner may not need to be refilled with gas. But refilling the gas will be better for the life of the machine.

- Normally, each air conditioner of some reputable brands is pre-charged with enough gas to operate without having to refill after installation. Depending on the capacity of each machine and each brand, the manufacturer will pre-charge gas for a certain length of copper pipe.

- For old machines in use, you can also base on the parameters recorded on the condenser combined with the gas pressure gauge to know how much gas is lost and needs to be refilled. Normally, if it is installed properly and there are no problems during use, the air conditioner gas will not be lost but will circulate and cool as an essential part of the air conditioner without needing to be "replenished" during use.

- Gas is only lost or lacking in cases such as when the machine is initially installed and lacks gas without checking whether the machine's operating pressure has enough gas or not, the connections are not completely sealed so a very small amount leaks, so after a long time the gas pressure in the machine drops to a certain amount, it is necessary to find the leak and fix it, then refill the gas.

In particular, when the air conditioner shows signs of running out of gas, you should refill the gas immediately. Do not let the air conditioner run out of gas before refilling it, as this will affect the operation and reduce the life of the air conditioner compressor. You should also pay attention to regular air conditioner maintenance to detect the phenomenon of the air conditioner running out of gas sooner.

How to avoid losing money on air conditioner gas refill?

According to refrigeration experts, air conditioner gas, if operating under normal conditions (no leaks), can be used for 4-7 years without needing to be refilled, depending on the brand.

You can periodically clean the condenser by removing the plastic cover, removing the filter and washing it.

During use, if the air conditioner is still operating normally and the cooling capacity is still good, you only need to maintain and clean the air conditioner without having to refill the gas, nor need to use the expensive full air conditioner maintenance service.

After cleaning and checking the air conditioner parts without any damage but the air conditioner still works poorly, you should check the gas factor. Normally, for two-way air conditioners, when the cold mode is turned on, the cold air is weak or there is no cold air, the condenser does not see hot air blowing out. On the contrary, when the hot mode is turned on, the cold air does not have hot air and the condenser does not blow out cold air.

Another way to know is to check the gas pipe at the connection point to the hot block. If the smaller copper pipe has snow on it, the air conditioner is low on gas. At this point, you need to call a technician to handle it and add enough gas to the machine.

Ngoc Anh

(Synthetic)