How to add fluoride: 1. First, run the air conditioner in the cooling mode, use two fluoride pipes, one end of the fluoride pipe is connected to the fluoride nozzle of the Freon tank, and the other end is connected to the tee pressure Gauge valve, one end of the other fluoride pipe is connected to the output end of the three-way pressure gauge valve, use a wrench to unscrew the cap of the fluoride nozzle at the low-pressure end (suction pipe) of the air conditioner outdoor unit, and remove the second fluoride pipe. The other end (the fluoride pipe with a thimble) is installed on the fluoride nozzle of the low-pressure end (suction pipe) of the outdoor unit of the air conditioner.

2. Open the valve on the fluoride nozzle of the Freon tank to add fluoride directly to the air conditioner. Observe the gauge pressure. When the gauge pressure reaches 0.35--0.4MPa, close the valve on the fluoride nozzle of the Freon tank. Leave the air conditioner running. Observe the cooling effect of the air conditioner. If the air conditioner reaches the normal cooling effect, remove the fluoride tube on the fluoride nozzle at the low-pressure end (suction pipe) of the outdoor unit, tighten the cap on the fluoride nozzle, and the air conditioner can be used normally. .