Title: Unit 12 Glossary
Course: HAC 131 Refrigeration & Air Conditioning 1 > Section: HAC 131 Refrigeration & Air Conditioning 1

Unit 12 Glossary

Terms

Term | Definitions
Combination dependent leaks | require two or more conditions to leak
Cumulative micro-leaks | all the individual leaks that are too small to detect with standard tools
Evacuation | the removal of non-condensables
Micron | 1/1000 of a millimeter
Pressure dependent leaks | detected as the system pressure increases
Recovery | the process of removing refrigerant from an HVAC system
Standing leaks | detected with the system off
Temperature dependent leaks | associated with heat of expansion
Vacuum pump | used to evacuate a system
Vibration dependent leaks | occur during unit operation