EPA 608 (TYPE II) Exam |100% Correct| Question and Answer 2024/2025

EPA 608 (TYPE II) Exam |100% Correct| Question and Answer 2024/2025 When a new system has been assembled, the first thing to do is? *Ans* 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? *Ans* 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? *Ans* 15% R-410A requires recovery tanks rated for at least? *Ans* 400 psig After refrigerant liquid has been recovered from a system, any remaining vapor is? *Ans* 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? *Ans* Recover as much R-502 from the recovery unit as possible, change filter, & evacuate. In a refrigeration system with a TXV (or other type of throttling device), the component directly following the condenser is the? *Ans* Receiver When charging an R-410A system that uses a water-cooled condenser, you must first charge with vapor to a pressure of at least________, before switching to liquid charging. *Ans* 120 psig Recovered refrigerant may contain what? *Ans* 1.) Acids 2.) Moisture 3.) Oils Your recovery/recycling machine has R-22 refrigerant in it. You now have to recover refrigerant from a unit with R-410A. What must be done before your recovery unit can be used to recover R-410A? *Ans* 1.) The recovery unit must be EPA certified for use with R-410A. 2.) The recovery tank must be designed for the pressure of R-410A. 3.) The filter & lubricant in the recovery unit must be changed, & the recovery unit evacuated.