Title: Replace a filter-drier.
Course: Heating, Ventilation, Air Conditioning, and Refrigeration I (17056-I) > Section: Servicing and Maintaining Refrigeration Systems

Replacement should include

- identifying the moisture capacity and size
- determining replacement by measuring delta T
- replacing the filter-drier each time the refrigeration system is opened.

Process/Skill Questions:

- How is a filter drier replacement determined?
- How long should a suction filter drier be installed in a system?
- When do you need to use a bi-flow drier?
- How does one determine the direction in which a filter-drier should be installed?