What are the precautions for turning on the air conditioning after parking?
2 Answers
Precautions for turning on the air conditioning after parking are as follows: 1. Open the windows for ventilation: If you want to maintain air circulation, you must open the car windows. Never completely seal the windows inside the car. Be sure to leave some gaps in the windows, but to prevent theft, the gaps should not be too large. 2. Turn on the external circulation: Do not use the internal circulation of the air conditioning. In addition to not being able to sleep in a closed space while parked, you also need to pay attention to the internal and external circulation of the air conditioning, which is a point that is easily overlooked. The difference between internal and external circulation is that external circulation draws air from outside the car and transmits it into the car through the air conditioning's cooling or heating; internal circulation cuts off the exchange with the outside air and only circulates the air inside the car.
I have a deep understanding of the issue of running the air conditioning while parked. In summer, the car gets stuffy, so I always open the doors to ventilate before turning on the AC, letting the hot air escape. After starting the engine, don't close the doors immediately—wait at least two minutes for the cool air to lower the interior temperature before rolling up the windows. Remember to use the external circulation mode; otherwise, the air inside becomes as stifling as a sealed can. Most importantly, never sleep in an enclosed garage with the AC running—carbon monoxide can silently seep into the car. Last time I waited for someone on the roadside for half an hour, I started feeling dizzy and quickly opened the windows for fresh air. For short waits, just using the fan mode can save fuel and protect the battery.
