An R-12 to R-134a conversion procedure is being discussed. Technician A says leak-test the system and conduct a performance test prior to removing the R-12. Technician B says leak-test the system and conduct a performance test after charging the system with R-134a. Who is correct?

Question

Quizplus · Accepted Answer

Both technicians are correct. Technician A suggests leak-testing and conducting a performance test before removing R-12 to ensure the system is initially in good condition. Technician B suggests doing the same after charging with R-134a to ensure the conversion was successful and the system operates correctly with the new refrigerant.

An R-12 to R-134a Conversion Procedure Is Being Discussed