EPA 608 TYPE III Complete Questions & Answers(RATED A)

Which of the following best describes the refrigerant recovery process from an R-123 system? - ANSWER Start with liquid removal and then switch over to vapor recovery. Under ASHRAE Standard 34, R-134a is classified as; - ANSWER A1 When charging a low-pressure system, refrigerant should be introduced to the system as a vapor to raise the system's saturation temperature to a minimum of; - ANSWER 36 Degrees In a low-pressure chiller, air and other non-condensables collect at the; - ANSWER Top section of the condenser Where is the purge unit located in a low-pressure system? - ANSWER The top of the condenser Because a low-pressure system operates below atmospheric pressure (in a vacuum), - ANSWER leaks in gaskets or fittings will cause air and moisture to enter the system. Where is refrigerant added to a low-pressure system during the charging process? - ANSWER The lowest access point on the system such as the evaporator charging valve.