How to Properly Pull a Vacuum on Your AC System: A Guide to Ensuring Optimal Performance and Efficiency
To pull a vacuum on an AC system, you will need an AC vacuum pump and a vacuum gauge. First, connect the vacuum gauge to the AC system. Then, connect the AC vacuum pump to the system and turn it on. Let the pump run for about 30 minutes to remove any air and moisture from the system. Check the vacuum gauge to ensure the pressure remains consistent, indicating the system is sealed and dehydrated. Turn off the vacuum pump, disconnect it from the system, and top off the refrigerant level.