Air conditioning system for mobility

A mobility comprising:

• a mobility body having an indoor area defined therein;
• a refrigerant circuit configured to circulate a refrigerant, the refrigerant circuit comprising a compressor, a condenser, an expander, and an evaporator;
• a first coolant line configured to circulate a coolant, the first coolant line comprising:
• a first heat exchanger configured and positioned to exchange heat with the evaporator of the refrigerant circuit;
• and
• a first air conditioning heat exchanger configured to adjust a temperature of air conditioning air through heat exchange with the coolant;
• a second coolant line configured to circulate the coolant, the second coolant line comprising:
• a second heat exchanger connected in the mobility so that the coolant in the first coolant line can flow from an upstream end to a downstream end of a second air conditioning heat exchanger and then to an upstream end and to a downstream end of the first air conditioning heat exchanger, wherein:
• the second heat exchanger is configured and positioned to exchange heat with the condenser of the refrigerant circuit, and
• the second air conditioning heat exchanger is configured to adjust the temperature of the air conditioning air through the heat exchange with the coolant;
• and
• a first valve configured to selectively control a flow of the coolant of the first coolant line at the upstream end of the first air conditioning heat exchanger.