Working principle of Audi A4L heating control valve

The working principle of the warm air control valve of Audi A4L car is that the heating of the control valve depends on the engine, and the heat of the engine heats the water temperature to provide warm air.

The heating system on the Audi A4L car is relatively simple, and it only uses the waste heat of the engine to work without driving. When the refrigeration switch is turned off, the air conditioning refrigeration compressor stops working, and the air outlet channel is switched to the warm air channel (or natural air).

This part of the power of automobile air conditioning refrigeration system comes from the engine, which drives the air conditioning pump to work, and the resistance is large, so the refrigeration system usually consumes more oil. Household air conditioners are basically driven by motors, so they consume more electricity.

Extended data:

The heating control system of Audi A4L car is introduced as follows:

The heat source comes from the engine coolant, and the water heating system is mostly used in cars, trucks and buses with low heating requirements. Water heating and warm air system is mainly composed of heater, hot water regulating valve, blower and control panel.

Among them, the blower is composed of adjustable speed DC motor and squirrel cage fan, which is used to blow cold air to the heater, and the cold air is heated and sent into the car. By adjusting the speed of the motor, the air supply to the compartment can be adjusted.

Phoenix. Is the com- air conditioner heater broken in winter? It turns out that they are the culprit.

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