... 3.Compact Structure 4.R22,R407C,R410A gas for your choice; 5.9K,11K,12K,17k, ... ) should not exceed 60ppm, the residual impurity in the refrigerating system (not include compressor) should not ... The compressor should not be left opend in the atmosphere for more than 15minutes.11,The electric ... -moisture.13,The compressor must not be applied for transportation equipment, such as automobiles, trains, ships ...