1-High-performance touch screen directly display; power, current, frequency, temprature, pressure, the hot rotary speed, etc
2-Both motor ang fan are variable frequency drives and make air end oil temperature constant, low noise, energy-saving, stable air end propertuy, long use life of oil..
3-Eliminate no-loading, reduce 50%of the power cost of no-loading
4Eliminate excess pressure, every 0.1Mpa pressure is higher,7%more energy costs.
5-One integral shaft driving, energy saving 3 to 5%
6-Frequency variable rangy  is 25 to 100%,larger than normal。