Title: Describe various refrigerants.
Course: Heating, Ventilation, Air Conditioning, and Refrigeration II (17056-II) > Section: Exploring Various Refrigerants

Description should include

- refrigerants that have been phased out (e.g., R22, R12)
- alternative refrigerants currently available (e.g., R600, R290, R32, R454-B, CO2).

Process/Skill Questions:

- Who decides when a refrigerant should be phased out?
- What are safety precautions to be observed when working with various refrigerants?
- What special tools are required when dealing with hydrocarbons?