EPA 608 Type III · Recovery Techniques · Medium
What is the most efficient way to begin recovering refrigerant from a low-pressure chiller?
Answer: A. Recover the liquid first.
- ARecover the liquid first.✓ Correct
- BRecover the vapor first.
- CRun the purge unit continuously.
- DPressurize the system with nitrogen.
Why A is right
Liquid recovery removes the vast majority of the refrigerant mass quickly, drastically speeding up the process.
More Type III questions
- What must be done after recovering the liquid from a low-pressure chiller?
- How should compressor oil be prepared before removal from a low-pressure chiller?
- Why must evaporator and condenser water pumps run when recovering refrigerant from a low-pressure chiller?
- What is the standard evacuation level for a low-pressure appliance?
- The Type III evacuation level of 25 mm Hg absolute equals about how many microns?
Go deeper with the study guide EPA 608 Evacuation Levels: The Required Vacuum by Appliance, try the free 10-question test or browse all EPA 608 practice questions.
A practice question written for study, checked against 40 CFR Part 82, Subpart F. It is not an official EPA exam question, and this site is not affiliated with the U.S. EPA.