Core concepts
This law regulates refrigerants and protects the ozone layer
What is the Clean Air Act?
This refrigerant has the highest ozone depletion potential
What is R-12?
This machine removes refrigerant from a system
What is a recovery machine?
These systems contain 5 lbs or less of refrigerant
What are Type I appliances?
These are high-pressure systems
What are Type II appliances?
This organization enforces refrigerant regulations
What is the Environmental Protection Agency?
This refrigerant is being phased out (HCFC)
What is R-22?
This tool measures system pressure
What is a manifold gauge set?
This recovery method does NOT use a compressor
What is passive recovery?
These systems operate in a vacuum
What are Type III appliances?
Releasing refrigerant into the air is called this
What is venting?
This refrigerant has zero ODP and is commonly used today
What is R-410A?
This device removes air and moisture from a system
What is a vacuum pump?
These valves should be removed after service
What are piercing valves?
This refrigerant is commonly used in low-pressure systems
What is R-11?
This certification is required to handle refrigerants
What is EPA Section 608 Certification?
This term measures how much heat a refrigerant traps
What is Global Warming Potential (GWP)?
This tool measures deep vacuum levels
What is a micron gauge?
This is the evacuation level (in inches Hg) for small appliances with a compressor
What is 4 inches Hg?
This must be repaired if leak rate exceeds limits
What is a leak?
This measures how harmful a refrigerant is to the ozone layer
What is Ozone Depletion Potential (ODP)?
Mixing different refrigerants is called this
What is cross-contamination?
This container stores recovered refrigerant
What is a recovery cylinder?
This type of appliance is typically factory sealed
What are small appliances?
This enters the system if it is not properly evacuated
What are air and moisture?