When the air conditioning installation, first screw 2 copper tubes in the exhaust? How to exhaust? Say specific points
NoFirst tighten the high-pressure pipe, exhaust 5---6 seconds, tighten the low-pressure pipe, you can
Tighten the low pressure pipe first, that is, the thicker one. Let the air out for 7-8 seconds and then tighten the smaller one of the high-pressure pipe.
Don't bother, you can pick up two, with the tube first open high pressure, penalty in the snow species there, put 10 seconds in the open low penalty
One to the third floor, are in the host completely no snow species, this way. If the host still has snow, you can tighten the two pipes. First, open a little air in the pipe, and then add the snow under the big pipe, then press and hold the exhaust for 5 to 10 seconds. Then, just open the raft with two pipes
First tighten the tube high pressure pipe joint [], then loosen the angle valve tube, a small number of horses air conditioning exhaust 5 seconds, air-conditioning exhaust for about 10 seconds, and then tighten the thick pipe [] low pressure pipe joints, the high angle valve, low pressure pipe all can be opened.