Coolant and Radiator ?

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Actually, it is for cooling the motor, controller, charger, DC-DC converter for the 12V system. High power electronics generate significant heat in small locations and this heat has to be removed. Liquid cooling is most efficient at this. The heat/cooling of the cabin is provided by a heat pump/PTC heater.
 
Hi,

I taught that the heat pump would recuperated the heat from the coolant to heat the cabin.

if not then it is a simple air to air heat pump, not very efficient below freezing point.
 
From KIA press release.

The heat pump efficiently combines the A/C and heater into one system while greatly reducing energy consumption.
It also utilizes waste heat from the Soul EV’s electrical systems to help heat the cabin.
 
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