The heater core serves as the central component for heating and temperature regulation within the passenger compartment. High-temperature antifreeze circulates through the heater core, exchanging heat with the external air to release warmth into the cabin environment. Rated heat exchange capacity: 4.75 kW @ 300 m³/h with -7°C intake air; 8 kW @ 300 m³/h with -17°C intake air.