5. After refrigerant liquid has been recovered from a system, any remaining vapor is?
ANS Condensed by the recovery system.
6. 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.
7. In a refrigeration system with a TXV (or other type of throttling device), the
component directly following the condenser is the?
ANS Receiver
8. 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
2/
2 of 14 8/8/2024, 2:45
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