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Composition and working principle of air conditioning and heating system

Edit： Click：166 Date：2017-02-01

Now cars mainly make full use of the waste heat of the coolant after the engine is cooled for heating, which is usually called water cooling. When the requirements for heating effect are higher, it will generally assist the relevant PTC heater for heating, and finally achieve a good heating effect. The main component of the air conditioning and heating system is the heat exchanger, which is mainly used for heating to heat the indoor air or the fresh air entering the vehicle from the outside, so as to achieve the purpose of heating and dehumidification.
The cooling water control valve on the engine sends the shunted cooling water to the heater core of the heater for heat exchange, and the exothermic cooling water returns to the engine through the heater outlet pipe; At the same time, the cold air is sucked into the heater core by the blower for heating, and blown into the interior of the car through different tuyeres for defrosting and heating of the windshield. The heating capacity of the heater can be adjusted by controlling the opening and closing of the cooling water control valve and the amount of water flow.

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The scope of application covers: passenger cars, refrigerated vehicles, buses, agricultural machinery and engineering vehicles, etc.

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