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Author: Lincool Date: Jun 24, 2025

How does parking air conditioning work?

‌Compression stage‌
The electric-driven compressor compresses the gaseous refrigerant into high-temperature and high-pressure gas

Compared with traditional idling air conditioners, electric compression reduces engine wear and carbon deposit risks

‌Condensation and heat dissipation‌
The high-temperature refrigerant enters the condenser and is forced to cool by the cooling fan and converted into a medium-temperature and high-pressure liquid

Heavy-duty trucks mostly use a top-mounted condenser design to enhance heat dissipation efficiency by using the driving wind

‌Throttling and pressure reduction‌
The liquid refrigerant is reduced in pressure by the expansion valve and becomes a low-temperature and low-pressure mist mixture8

‌Evaporation and heat absorption‌
The refrigerant absorbs the heat in the cab in the evaporator to achieve air cooling (as low as 18°C)

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