Title: Replace the gas valve.
Course: Heating, Ventilation, Air Conditioning, and Refrigeration II (17056-II) > Section: Servicing and Maintaining Fossil Fuel Heating Systems

Replacement should include

- following the method used for testing gas valve operation
- determining whether the gas valve is working within acceptable range
- installing the valve.

Process/Skill Questions:

- When should a valve be replaced?
- What are the different types of gas valves?
- How do interior and exterior gas valves differ?