AC Gas filling

Pressure Test

Check the air conditioner’s label to see what type of gas you’re using.
Then, turn off A/C and connect the hoses from the gauge manifold to the system pressure port. Check that the blue, yellow, and red hoses are properly connected to the vacuum lines.

Check Gas Leaks

During the gas filling process, make sure the Yellow Hose is handled properly.
Examine the temperature and other required readings to ensure that the amount of refrigerant used is adequate.
Close the manifold valve and the refrigerant tank knob.
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