Cooling and heating system for vehicle

A cooling and heating system for a vehicle, in which a compressor, an indoor condenser, an outdoor condenser, and an evaporator are connected to a refrigerant circulation line in which a refrigerant is circulating, the cooling and heating system comprising:

• a waste heat chiller connected to the compressor through a first bypass line in the refrigerant circulation line;
• a battery chiller connected to the compressor through a second bypass line in the refrigerant circulation line;
• a first coolant line circulating a coolant by connecting the waste heat chiller to an electric radiator and an electric unit arranged adjacent to the outdoor condenser;
• a second coolant line spaced apart from the first coolant line and circulating the coolant by connecting the battery chiller to a battery of the vehicle;
• and
• a coolant control unit connecting the first coolant line and the second coolant line and controlling a flow of the coolant circulating in the first coolant line and the second coolant line,
• wherein waste heat of the electric unit is collected, a refrigerant accumulated in the outdoor condenser is collected through a third bypass line, and waste heat of the battery is collected in a heating mode, and the battery is cooled by circulating the refrigerant that passed through the outdoor condenser in the evaporator and the battery chiller in a cooling mode to enable heat management of the battery.