When removing any group 1 refrigerant except CO2 from a refrigeration system, how should it be discharged?

The proper method for discharging group 1 refrigerants, which includes refrigerants like CFCs, HCFCs, and HFCs, is to use a recovery tank. This is essential for environmental protection and compliance with regulations. These substances can be harmful to the ozone layer and contribute to global warming if released into the atmosphere.

Discharging refrigerants into a recovery tank allows for proper handling and recycling of the refrigerants. Recovery tanks are specifically designed to safely store refrigerants for future reclamation or disposal in an environmentally friendly manner.

Using an empty disposable container would not be safe or compliant with environmental regulations because it is not designed for this purpose and could lead to potentially hazardous scenarios. The other options, such as discharging into the atmosphere or into water, are clearly inappropriate as they pose significant environmental risks and are prohibited by law.