Fixing HVAC Leaks: A Guide to Copper Corrosion and Refrigerant Issues
Copper line sets consist of two copper tubes that connect the outdoor air conditioner or heat pump to the indoor evaporator coil. These tubes, known as the suction line and the liquid line, are responsible for transporting refrigerant in a continuous cycle between the indoor and outdoor units. The suction line carries refrigerant vapor from the evaporator to the compressor, while the liquid line returns the condensed refrigerant to the evaporator.