1. Please do not mix with other refrigerant and refrigeration oil. R410A special tools are mainly used for after-sales service. Unlike air conditioners using other refrigerants, do not mix them.

2. The pressure of R410A is about 1.6 times higher than that of R22 refrigerant. Once the wrong operation occurs in the process of construction and after-sales service, a major accident may occur. When installing air conditioner with R410A refrigerant, use R410A special tools and materials,.

3. Different from other refrigerants used before, it is easy to be affected by impure substances such as moisture, oxide layer, grease, etc. Therefore, full attention shall be paid to the use of clean piping to prevent moisture from mixing in during construction operation.

4. From the point of view of protecting atmospheric environment, vacuum pump is needed. R410A is a kind of azeotropic mixed refrigerant, which is added by liquid way. When the gas is added, the composition of the refrigerant will change.

5. Before installation, first confirm the name of air conditioner refrigerant, and then carry out different operations for different refrigerant. In household air conditioners using R410A refrigerant, refrigerant other than R410A must not be used. In the air conditioner using R22 refrigerant, R410A refrigerant should not be used.

6. When installing or moving the air conditioner, please do not mix air other than R410A refrigerant into the refrigerant circulation pipeline of the air conditioner. If air and other non condensable gases are mixed in, it will lead to abnormal high pressure in the refrigerant circulation pipeline, which is the main reason for the cracking of the circulation pipeline.

7. After the installation, please carefully confirm that there is no refrigerant leakage. If the refrigerant leaks in the room, once it contacts with the electric sparks from the electric fans, heating furnaces, electric furnaces and other appliances, toxic gases will be formed.

8.In case of refrigerant leakage during operation, please ventilate in time. When installing the air conditioner with one drag and more air conditioners, for example, the amount of refrigerant sealed in is relatively large, especially in the small room. Even in case of refrigerant leakage, its concentration cannot exceed the specified value. Otherwise, it will cause anoxia.

Article arrangement comes from "refrigeration encyclopedia"

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