The two copper tubes of the air conditioner are rough or thin Should I turn off the fluoride first or the first one?
Air conditioning to hit the cooling, first closed the tube valve, probably about 10 seconds, and then close the thick pipe valve, then immediately turn off the power supply, the syrup into the compressor
Compressor from the thick suction, and then out of the tube, you think first which, the answer: first off fine,
Fine air! Thick air! The valve that closes the receiver first!