Exam (elaborations)
EPA Type 2 questions with correct answers
- Course
- EPA 608
- Institution
- Liberty University
Heat pumps that have been retrofitted from R22 to R407C should be leak checked with: ans pressurized nitrogen When a new system has been assembled, the first thing to do is: ans pressurize the system with inert gas and leak check EPA regulations require that leaking commercial or ...
[Show more]