An air conditioner is an Air Conditioner. It refers to the equipment that uses artificial means to adjust and control the temperature, humidity, flow rate, and other parameters of the ambient air in buildings or structures. Generally, it includes cold source/heat source equipment, cold and hot medium transmission and distribution system, terminal devices, and other auxiliary equipment. Mainly include refrigeration host, water pump, fan, and piping system. The terminal device is responsible for using the cold and heat from the transmission and distribution, specifically processing the air state, and making the air parameters of the target environment meet certain requirements. To achieve the cooling effect of the air conditioner, it is necessary to add Refrigerant R410. Next, the refrigerant manufacturer will introduce the method of adding Refrigerant R410:

　　1. Turn on the air conditioner;

　　When adding refrigerant in summer, the air conditioner can be directly operated in cooling mode. Because the operation of adding refrigerant cannot be performed in the heating state, when adding refrigerant in winter, the method of heating and pulling the reversing valve line should be used to force the air conditioner to enter the cooling state.

　　2. Connect the refrigerant adding equipment;

　　After the air conditioner is started normally, connect the refrigerant adding equipment from the process port on the low-pressure valve side of the outdoor unit. Be sure to remove the air and dirt in the refrigerant pipe during this process.

　　3. Pressure measurement and refrigerant;

　　Observe the low pressure in summer, when the ambient temperature is about 32 degrees Celsius, the pressure is controlled at about 0.45MP;

　　In winter, observe the high-pressure pressure during heating, and control it at about 1.7MP after the pressure is stable.

　　4. Remove the refrigerant adding equipment;

　　Remove the refrigerant add equipment in the cooling state, and tighten the outer machine seal; if the equipment is removed in the heating state, it will cause a large amount of refrigerant leakage.

　　5. Finish adding refrigerant.

　　Note: The new environmentally friendly refrigerants should be evacuated as much as possible, and all of them should be refilled. For air conditioners suspected to have leaks, check them with dish soap or soapy water.