EPA 608 (TYPE II) Exam Questions and Answers [Graded A+]

When a new system has been assembled, the first thing to do is? Pressurize the system with an inert gas & leak check. After installation of a field-piped R-410A split heat pulp, the unit should first be? Pressurized with nitrogen then leak checked. The EPA regulations require that any appliances containing more than 50 pounds of refrigerant (except for commercial & industrial process refrigeration) must be repaired when the leak rate exceeds _________ of the charge per year? 15% R-410A requires recovery tanks rated for at least? 400 psig After refrigerant liquid has been recovered from a system, any remaining vapor is? Condensed by the recovery system. Your recovery/recycling machine has R-502 refrigerant in it. You now have to recover refrigerant from a unit with R-22. What must be done before the R-22 refrigerant can be recovered/recycled? Recover as much R-502 from the recovery unit as possible, change filter, & evacuate.