function such as recovery, regeneration, vacuum,filling(oil,refrigerant)and monitoring. Automatic Refrigerant Recovery and Filling Machine HS-520Connection:1/ ... or R410a.Features: function for recovery, regeneration, vacuum,filling(oil,refrigerant)and monitoring. automatic operation and full monitor of ... refrigeration and A/C system below 5kg. Automatic Refrigerant Recovery and Filling Machine HS-560