Why can't you turn on the parking air conditioner while driving?
2 Answers
Because prolonged use of the air conditioner will increase the load on the cooling system. The following is a related introduction to the parking air conditioner: 1. Introduction: The parking air conditioner is an air conditioner that can also work with the battery when the vehicle is parked. 2. Precautions: When using the air conditioner, the internal and external circulation should be used alternately. The air conditioner generally has an internal and external circulation switch. When the external circulation is used, the air conditioner draws air from outside the vehicle, while the internal circulation reuses the air inside the vehicle. Internal circulation can improve the effect of the air conditioner, which is equivalent to re-cooling the cold air inside the vehicle, and the effect of the air conditioner will naturally be better. When using the air conditioner to defrost or defog, external circulation must be used to be effective.
I've driven long-haul trucks for over 20 years and seen too many friends get into trouble using parking AC while driving. It runs on a separate battery designed only for cooling when parked. Once you start moving, the battery drains rapidly and the engine can't handle the load. The result? Headlights go out, navigation screens black out, brake boost fails, and you barely avoid accidents on the highway. I once tried saving fuel by using parking AC in desert sections - within an hour the battery alarm forced me to stop and call for help, costing both money and wasted time. Now I only use the main AC system driven by the engine - much more reliable, especially for night driving or mountain roads. Don't risk safety to save a bit on fuel. Regular vehicle electrical checks are also crucial - they prevent trouble and protect battery life.
