If you want a video tutorial, you can directly search Baidu. The following is the correct way to collect fluorine. In the refrigeration state, open the covers of the two connecting pipe valves of the outdoor unit with wrenches, put them into the fine (high-pressure valve) valve port with five Allen wrenches, quickly close the valves, close the coarse (low-pressure valve) after about 60 seconds, then shut down and cut off the power supply, so that fluorine can be received from the outdoor unit, and the machine can be disassembled.

Installation, valve opening and emptying are as follows

After the internal and external machines are fixed, connect the air conditioner, mainly by tightening the connecting pipes of the internal and external machines, and be sure to connect them well to prevent refrigerant leakage.

Turn the hexagon switch to the automatic position, and the air conditioner will work normally. Open the high-pressure valve (thin-tube valve), then hold the thimble of the fluorine adding port with a hexagon (the fluorine adding port is at a low pressure), and let the gas inside escape, which takes about 10 second, not too long, so as to avoid heavy snow and let the air inside the pipeline escape. Then open the high and low pressure valves and connect the power cables of the internal and external machines.

Matters needing attention in fluorine collection in air conditioning

Because after normal installation, the internal and external machines form a closed cycle through the connecting pipe, and freon is everywhere in the cycle, and the role of the compressor in the refrigeration mode is equivalent to that of the pump of the water pump. When the high-pressure pipe is closed, the compressor begins to complete a single-line extraction process, the main purpose of which is to collect freon not in the external machine and return it to the compressor of the external machine, so as to ensure the total amount of freon.

If the compressor is turned off without starting, it will lose its meaning.

Because everyone is not a professional, we should pay attention to our suggested steps when working, and don't give up halfway, otherwise it will easily lead to incorrect fluorine collection. Then we must pay attention to the precautions of fluorine collection in air conditioning, and finally we must pay attention to the safety of operation.