Air-conditioning apparatus for vehicle

An air-conditioning apparatus for a vehicle, the apparatus comprising:

• a radiator module including a first radiator, a second radiator, and a third radiator;
• a refrigerant module having a compressor, an expansion valve, a condenser, and an evaporator, through which refrigerant is circulated;
• a hot portion through which coolant flows and for heat-exchanging with the condenser and a heater core of an internal air-conditioning module;
• a cold portion through which the coolant flows and for heat-exchanging with the evaporator and a cooling core of the internal air-conditioning module;
• an electric portion through which the coolant flows and for heat-exchanging with an electric component;
• a battery portion through which the coolant flows and for heat-exchanging with a battery;
• a connection module having a plurality of coolant lines and a valve, and configured for selectively fluidically-connecting the hot portion, the electric portion, or the battery portion to at least one of the first radiator, the second radiator, and the third radiator;
• and
• a control unit configured of controlling operations of the compressor and the valve.