Chapter
15
Refrigeration
System Diagnosis
and Leak
Detection
227
After studying this chapter, you will be able to:
❑
Explain the seven step troubleshooting process.
❑
Make a refrigeration system and HVAC system performance check.
❑
Correctly attach gauges to a refrigeration system.
❑
Diagnose problems in a refrigeration system.
❑
Determine the type of refrigerant in a refrigeration system.
❑
Locate refrigeration system leaks.
Strategy-based diagnostics
Logic
Seven-step process
Intermittent problems
Functional test
Performance test
System undercharge
System overcharge
System restrictions
Electronic leak detectors
Soap solution
Dyes
Special tools
Follow-up
Documentation
Technical Terms