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NEVER
Use a vacuum pump that pulls it into a tank.
It is maintained through the use of a compressor in a graduated cylinder
It is maintained through the use of a compressor in a graduated cylinder
Use R-134
It is maintained through the use of a compressor in a graduated cylinder
R134a
Because it's the only way to recover it. You recover from the high pressure side, and charge it on the low pressure side.
The 1995 Mitsubishi Mirage 1.5-liter MFI SOHC 4-cylinder engine uses R-134a refrigerant. The refrigerant capacity for this make and model is 28 ounces.
Beginning at that time, any equipment used to recover or recycle HFC-134a from and recover-only equipment that is designed to service MVAC systems that use rule explicitly allows section 609 certified technicians who recover refrigerant.
R-22 refrigerant typically uses a light green cylinder. However, it's worth noting that R-22 is being phased out due to environmental concerns, and it is being replaced by more eco-friendly refrigerants.
most things are disposable