NOTE: It is not possible to determine the amount of refrigerant in an A/C system without completely evacuating the system and recharging it. Always refer to the underhood heating and air conditioning specification tag for the proper amount of refrigerant.
CAUTION
Do not add more refrigerant to the system than specified by the manufacturer. Excessive system pressure may cause compressor failure.
CAUTION
A small amount of refrigerant oil is removed from the system each time the refrigerant is recovered into a refrigerant recovery/recycling station. This amount of oil must be returned to the system when the system is recharged. Follow the manufacturer’s instructions that came with the equipment being used.
A refrigerant recovery/recycling station is needed to recover refrigerant from an A/C system. Connect the equipment to the vehicle’s A/C system according to the manufacturer’s instructions.