Temperature control system

A temperature control system mounted on a vehicle, the temperature control system comprising:

• a PU cooling circuit configured to allow a first refrigerant to flow therethrough and adjust a temperature of a power unit;
• a refrigeration cycle circuit, which is used for air conditioning, configured to allow a second refrigerant to flow therethrough;
• a first heat exchanger configured to exchange heat between the first refrigerant in the PU cooling circuit and the second refrigerant in the refrigeration cycle circuit;
• a gas-liquid separation device configured to separate the first refrigerant into gas and liquid;
• and
• a refrigerant cooling circuit configured to allow the first refrigerant in a gaseous state to flow therethrough and communicate with the PU cooling circuit via the gas-liquid separation device,
• wherein a second heat exchanger of the refrigeration cycle circuit is configured to take in waste heat which is discharged from the gaseous first refrigerant separated by the gas-liquid separation device to an atmosphere by a condenser of the refrigerant cooling circuit.