... , low-temperature, high-temperature and Big-load conditions4) The super heat protection of motor and Overload protection can ensure its safety5 ... can be used to purge The moisture, contaminants and excess refrigerant from the system after each use7) Heavy duty industrial grade ... ,R412A,R502,R509Cat V: R402A,R404A,R407A,R407B,R410A,R507 Refrigerant Recovery Rate Cat III Cat IV Cat V Vapor 0.2kg ...