Air connection plug-in for the motor, the connection method is as following.
1,2—A,A′ 3,4—B,B′ 5,6—C,C′ 7—Grounding（frame）
1. The motor keeps 1 year warranty since the delivery date.
2. The motor should be kept in warehouse which is -20℃ to +40℃, and the relative humidity is not large than 90%. Also, there is no corrosive gas in the air.