Recovery Practice Flashcards
What must happen to refrigerant if it accidentally gets mixed together.
It must be incinerated at a substantial cost.
What is used to determine what type of refrigerant is in a recovery tank?
A Pressure Temperature (PT) Chart.
What does heating the appliance do to the recovery process?
Speeds it up.
What does heating the room where the appliance is located do to the recovery process?
Speeds it up.
What does cooling the recovery tank do to the recovery process?
Speeds it up.
What does cooler ambient temperatures do to the recovery process?
Slows it down.
In what state does refrigerant recover faster?
The liquid state.
What is the recommended recovery level of a system that has a known leak?
“0” PSIG
What should be done to aid in removing trapped refrigerant in the compressor?
Tap it with a rubber mallet.
What can be done in order to reduce oil loss while recovering?
Recover in the vapor phase.
What is THE ONLY WAY that a vacuum pump can be used during the recovery process?
It can be used to reduce the pressure of a recovery container.
After reaching the required recovery level (vacuum), what should a technician do to make sure that all of the refrigerant has been removed?
Wait a few minutes to see if the system pressure rises.
What should be done if you suspect moisture, acid, oil sludge or waxing from a compressor burnout?
Take an oil sample.
