Without low emission
Extraction without low emission, the air conditioner is not completely emptied. The compressor of the service unit is not able to empty the system complete a residue of 500 millibars (absolute pressure) of refrigerant remains in the air conditioner.
Vacuum phase without low emission, the remaining refrigerant (500 millibars) is extracted through the exhaust side of the vacuum pump, depending on the device between 1 and 10%.
Oil drainage without low emission, the refrigerant needed for draining the used oil escapes into the environment through the ventilation holes of the old oil container. For each used oil drain operation, depending on the device, it is between 40 and 100 grams.