Exam (elaborations)
HVAC: EPA 608 Certification Study Guide 100 Questions with Correct Answers
- Course
- Institution
HVAC: EPA 608 Certification Study Guide 100 Questions with Correct Answers Are there drop-in replacements for R-12 systems? Why or why not? - Correct Answer No because the new refrigerants are incompatible with the oils and lubricants used in R-12 systems. What type of oil is used in R-134a and...
[Show more]