No pressure gauge. How do you see the air conditioner plus fluorine?
The high voltage switch and the low voltage protective switch of the compressor can be used to check how high and low the pressure is. The high pressure 350PA and the low pressure 4-6PA indicate that the fluorine in the air conditioner has been completed."Air conditioning plus fluoride" operation1. Connect the refrigerant cylinder, the repair meter and the fluoride mouth with the fluorine filled hose, and remove the air in the hose.2, start the compressor, the cylinder and the refrigeration system of refrigerant gas filling pressure difference (if the pre vacuum refrigeration system, should be in a stopped state before filling the refrigerant gas, the pressure gauge pointer no longer rises, and then start charging fluoride).3. Observe the change of the indicator of the pressure gauge during the process of fluoride filling. The pressure gauge pointer is maintained in the 0.45-0.5Mpa range by intermittently filling the fluorine.4, after commissioning 30 minutes, the air conditioner should appear the normal operation of the above.5, after the stop, use catharsis to check each leak doubt.
The night air drying bottle of automotive air conditioning, you can be judged according to the night vision empty, you hit the engine when the normal operation of the machine, to observe if there are bubbles empty night vision is not enough, if there is no bubbles, then turn off the machine to observe it will take 5-10 seconds of air bubbles, so in this case the Freon is enough, don't waste things. The simplest is to have you feeling cold enough on the OK - _-!I have learned, understand, doubt the answer, you can fix the car that ask.
Practical method: the fluorine belt is connected to the perfusion and exhaust port of the three way stop valve, then the fluorine bottle is opened, the fluorine bottle is turned upside down, the air conditioner is switched on, and the air conditioner is in a refrigeration state. With the current clamp voltage meter to measure the air conditioner, when the current is equal to the rated current, basically almost the same. Although this method is not very good, but relatively simple, easy to operate, do not prevent try.
