On what does a Type II EPA certification allow a service technician to work?

When pressurizing a system with nitrogen you should;

Cooling occurs in a direct- expansion vapor compression refrigeration system when:

Which of the following refrigerants is considered an HFC-type of refrigerant?

To process refrigerant to new product specifications is called ____.

The trapping of the Earth’s heat in the atmosphere which is causing global warming is called the ____________________.

Mechanical refrigerant recovery equipment must meet specifications established by the 1993 AHRI 740 standard.

before you dispose of any appliances containing a CFC or HCFC refrigerant, you must:

Which type of refrigerant has the highest Ozone Depletion Potential (ODP)?

Which of the following refrigerants is a CFC-type refrigerant?