... 100-75-50-min%) or stepless(100-25%),motot with 6 PTC temperature sensors embedded, PTC discharge temperature ... sensors,electronic protection device(Refcomp RCX),electrical box with enclosure class IP54,Nitrogen protective charge,Rubber anti-vibration ... dampersOil return line kit provide with:Solenoid valve,replaceable cartridge type filter,flow-switch,sight ...