STAR Residential-Light Commercial HVAC Mastery Recert (Pilot) The STAR Residential-Light Commercial HVAC Mastery Recert focuses on EPA refrigerant handling and system diagnostics across both residential units and small commercial equipment—a dual-scope that generic HVAC credentials rarely address. While Section 608 covers refrigerant basics, this pilot dives into real-world troubleshooting of mixed-use installations where residential and light commercial systems often share infrastructure or require crossover expertise.
| Exam Name | STAR Residential-Light Commercial HVAC Mastery Recert (Pilot) |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
